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<P ALIGN="CENTER">As filed with the Securities and Exchange Commission on April 28, 2005.</P>
<P ALIGN="CENTER">File No. 333-________</P>
<P ALIGN="CENTER">SECURITIES AND EXCHANGE COMMISSION</P>
<P ALIGN="CENTER">WASHINGTON, D.C. 20549</P>
<B><P ALIGN="CENTER">________________________________</P>
</B><P ALIGN="CENTER">FORM S-8</P>
<P ALIGN="CENTER">REGISTRATION STATEMENT</P>
<P ALIGN="CENTER">UNDER</P>
<P ALIGN="CENTER">THE SECURITIES ACT OF 1933</P>
<B><FONT SIZE=4><P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">ASTEC INDUSTRIES, INC.</P>
</B></FONT><FONT SIZE=2><P ALIGN="CENTER">(Exact Name of Issuer as Specified in its Charter)</P></FONT>
<P ALIGN="CENTER"><CENTER><TABLE CELLSPACING=0 BORDER=0 CELLPADDING=7 WIDTH=712>
<TR><TD WIDTH="55%" VALIGN="TOP">
<B><P ALIGN="CENTER">Tennessee</B></TD>
<TD WIDTH="45%" VALIGN="TOP">
<B><P ALIGN="CENTER">62-0873631</B></TD>
</TR>
<TR><TD WIDTH="55%" VALIGN="TOP">
<FONT SIZE=1><P ALIGN="CENTER">(State or Other Jurisdiction of Incorporation or Organization)</FONT></TD>
<TD WIDTH="45%" VALIGN="TOP">
<FONT SIZE=1><P ALIGN="CENTER">(I.R.S. Employer Identification Number)</FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<B><FONT SIZE=2><P ALIGN="CENTER">1725 Shepherd Road</P>
<P ALIGN="CENTER">Chattanooga, Tennessee 37421<BR>
(423) 899-5898</B><BR>
(Address, including zip code, and telephone number of Principal Executive Offices)</P>
<B><P ALIGN="CENTER">Astec Industries, Inc. 1998 Non-Employee Directors Stock Incentive Plan</P>
</B><P ALIGN="CENTER">(Full Title of the Plan)</P></FONT>
<P ALIGN="CENTER"><CENTER><TABLE CELLSPACING=0 BORDER=0 WIDTH=675>
<TR><TD WIDTH="54%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">&nbsp;</P>
<B><P ALIGN="CENTER">J. Don Brock<BR>
Chairman of the Board and President<BR>
Astec Industries, Inc.<BR>
1725 Shepherd Road</P>
<P ALIGN="CENTER">Chattanooga, Tennessee 37421<BR>
Telephone: (423) 899-5898</B><BR>
(Name, address, including zip code, and telephone number, including area code, of agent for service)</FONT></TD>
<TD WIDTH="46%" VALIGN="TOP">
<B><FONT SIZE=2><P ALIGN="CENTER">Copy to:</P>
<P ALIGN="CENTER">LAURA G. THATCHER<BR>
Alston &amp; Bird LLP<BR>
One Atlantic Center<BR>
1201 West Peachtree Street, NW<BR>
Atlanta, Georgia 30309-3424<BR>
Telephone: (404) 881-7546</P>
<P ALIGN="CENTER">Facsimile: (404) 253-8873</B></FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<B><P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">CALCULATION OF REGISTRATION FEE</P></B>
<P ALIGN="CENTER"><CENTER><TABLE BORDER CELLSPACING=2 BORDERCOLOR="#000000" WIDTH=720>
<TR><TD WIDTH="27%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">Title of Securities<BR>
to be Registered </FONT></TD>
<TD WIDTH="18%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">Amount to<BR>
be Registered</FONT></TD>
<TD WIDTH="20%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">Proposed<BR>
Maximum<BR>
Offering Price<BR>
Per Share </FONT></TD>
<TD WIDTH="20%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">Proposed<BR>
Maximum<BR>
Aggregate<BR>
Offering Price</FONT></TD>
<TD WIDTH="15%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">Amount of<BR>
Registration Fee</FONT></TD>
</TR>
<TR><TD WIDTH="27%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">Common Stock<BR>
$0.20 par value</FONT></TD>
<TD WIDTH="18%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">150,000 (1)</FONT></TD>
<TD WIDTH="20%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">$22.88 (2)</FONT></TD>
<TD WIDTH="20%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">$3,432,000 (2)</FONT></TD>
<TD WIDTH="15%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">$403.95</FONT></TD>
</TR>
</TABLE>
</CENTER></P>
<DIR>

<FONT SIZE=2><P ALIGN="CENTER">(1) &#9;Amount to be registered consists of an aggregate of 150,000 shares to be issued pursuant to the grant or exercise of awards to non-employee directors under the Astec Industries, Inc. 1998 Non-Employee Directors Plan (the "Plan"), including additional shares that may become issuable in accordance with the adjustment and anti-dilution provisions of the Plan. Astec Industries, Inc. has previously filed a Registration Statement on Form S-8 (SEC File No. 333-123266) with respect to shares issuable under the Plan. This Registration Statement is filed to cover additional shares authorized for issuance under an amendment to the Plan.</P>
<P>(2)&#9;Determined in accordance with Rule 457(h), the registration fee calculation is based on the average of the high and low prices of the Company's Common Stock reported on the Nasdaq National Market on April 22, 2005.</P></DIR>

</FONT><B><P ALIGN="JUSTIFY">PART I&#9;INFORMATION REQUIRED IN The Section 10(a) Prospectus</P>
<P ALIGN="JUSTIFY">&#9;</B>(a)&#9;The documents constituting Part I of this Registration Statement will be sent or given to participants in the Plans as specified by Rule 428(b)(1) under the Securities Act of 1933, as amended (the "Securities Act").</P>
<P>&#9;(b)&#9;Upon written or oral request, Astec Industries, Inc. (the "Company") will provide, without charge, the documents incorporated by reference in Item 3 of Part II of this Registration Statement. The documents are incorporated by reference in the Section 10(a) prospectus. The Company will also provide, without charge, upon written or oral request, other documents required to be delivered to employees pursuant to Rule 428(b). Requests for the above-mentioned information should be directed to Kim Greene at the address and telephone number on the cover of this Registration Statement.</P>
<B><P ALIGN="JUSTIFY">PART II.&#9;INFORMATION REQUIRED IN REGISTRATION STATEMENT</P>
<P ALIGN="JUSTIFY">Item 3.&#9; Incorporation of Documents by Reference</P>
<P ALIGN="JUSTIFY">&#9;</B>The following documents filed by the Company with the Securities and Exchange Commission (the "Commission") pursuant to the Securities Exchange Act of 1934, as amended (the "Exchange Act") are incorporated herein by reference and are deemed to be a part hereof from the date of the filing of such documents:</P>
<P ALIGN="JUSTIFY">(1)&#9;The Annual Report on Form 10-K of the Company for the fiscal year ended December 31, 2004;</P>
<P ALIGN="JUSTIFY">&#9;(2)&#9;All reports filed by the Company pursuant to Section 13(a) or 15(d) of the Exchange Act since December 31, 2004; and</P>
<P ALIGN="JUSTIFY">&#9;(3)&#9;The description of the Common Stock contained in the Company's Registration Statement filed under Section 12 of the Exchange Act, including any amendments or reports filed for the purpose of updating such description.</P>
<P ALIGN="JUSTIFY">&#9;All other documents subsequently filed by the Company pursuant to Section 13(a), 13(c), 14 and 15(d) of the Exchange Act prior to the filing of a post-effective amendment to this Registration Statement that indicates that all securities offered have been sold or that deregisters all securities that remain unsold shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of filing of such documents.</P>
<P ALIGN="JUSTIFY">&#9;Any statement contained in a document incorporated or deemed incorporated herein by reference shall be deemed to be modified or superseded for the purpose of this Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also is, or is deemed to be, incorporated herein by reference modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement. </P>
<B><P>Item 4. Description of Securities.</B> Not applicable.</P>
<B><P>Item 5. Interests of Named Experts and Counsel.</B> Not applicable.</P>
<B><P>Item 6. Indemnification of Directors and Officers.</P>
</B><P>As permitted under Tennessee law, the Company's Charter provides that a director shall not be personally liable to the Company or its shareholders for monetary damages for breach of fiduciary duty as a director, except that such provision does not eliminate or limit the liability of a director (a) for any breach of the director's duty of loyalty to the Company or its shareholders, (b) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, or (c) for unlawful corporate distributions.</P>
<P>&#9;Under its Bylaws, the Company may indemnify and advance expenses to its current and former directors and officers with respect to certain liabilities incurred as a result of any threatened, pending, or completed action, suit or proceeding, whether civil, criminal, administrative, or investigative and whether formal or informal, to which such person is a party because he is or was a director or officer of the Company. The liabilities that may be indemnified against include the obligations to pay judgments, fines, penalties, amounts paid in settlement, and reasonable expenses, including attorneys' fees, incurred with respect to a proceeding. Any such indemnification is predicated upon the proposed indemnitee having met the standard of conduct specified in the Tennessee Business Corporation Act. Determination concerning whether or not the applicable standard of conduct has been met can be made by (a) the Board of Directors by a majority vote of a quorum consisting of disinterested directors, (b) a majority vote of a committee of disinterested directors, (c) special legal counsel, or (d) an affirmative vote of a majority of shares held by the disinterested shareholders. No indemnification shall be made to or on behalf of a director (i) in connection with a proceeding by or in the right of the Company in which the director was adjudged liable to the Company, or (ii) in connection with any other proceeding in which the director was adjudged liable on the basis that personal benefit was improperly received by him. The Company's Bylaws also permit the Company to indemnify or advance expenses to its employees and agents to the same extent as to a director or officer.</P>
<B><P ALIGN="JUSTIFY">Item 7. Exemption from Registration Claimed.</B> Not applicable.</P>
<B><P>Item 8. Exhibits.</P>
</B><P>See Exhibit Index, which is incorporated here by reference.</P>
<B><P>Item 9. Undertakings.</P>
</B><P ALIGN="JUSTIFY">&#9;(a) &#9;The undersigned Company hereby undertakes:</P>
<P ALIGN="JUSTIFY">&#9;&#9;(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:</P>
<P ALIGN="JUSTIFY">&#9;&#9;&#9;(i) To include any prospectus required by section 10(a)(3) of the Securities Act;</P>
<P ALIGN="JUSTIFY">&#9;&#9;&#9;(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement; and</P>
<P ALIGN="JUSTIFY">&#9;&#9;&#9;(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change in such information in the registration statement.</P>
<P ALIGN="JUSTIFY">&#9;&#9;<I>Provided, however,</I> that paragraphs (a)(l)(i) and (a)(l)(ii) above do not apply if the registration statement is on Form S-3 or Form S-8, and the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed by the Company pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in the registration statement.</P>
<P ALIGN="JUSTIFY">&#9;&#9;(2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial <I>bona fide</I> offering thereof.</P>
<P ALIGN="JUSTIFY">&#9;&#9;(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.</P>
<P ALIGN="JUSTIFY">&#9;(b)&#9;The Company hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the Company's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act that is incorporated by reference in the registration statement) shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial <I>bona fide</I> offering thereof.</P>
<P ALIGN="JUSTIFY">&#9;(h)&#9;Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Company pursuant to Item 6 of this Part II, or otherwise, the Company has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Company of expenses incurred or paid by a director, officer or controlling person of the Company in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Company will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.</P>
<B><P ALIGN="CENTER">&nbsp;</P>
</B><P ALIGN="CENTER">(signatures on following page)</P>
<B><P ALIGN="CENTER">SIGNATURES</P>
</B><P>Pursuant to the requirements of the Securities Act, the Company certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chattanooga, State of Tennessee, on the 28 day of April, 2005.</P>
<P>&nbsp;</P>
<P>&#9;ASTEC INDUSTRIES, INC.</P>
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<P ALIGN="RIGHT"><TABLE CELLSPACING=0 BORDER=0 CELLPADDING=7 WIDTH=638>
<TR><TD VALIGN="TOP">
<P>By: /s/ J. Don Brock </TD>
</TR>
<TR><TD VALIGN="TOP">
<P>J. Don Brock</TD>
</TR>
<TR><TD VALIGN="TOP">
<P>Chairman of the Board and President </TD>
</TR>
</TABLE>
</P>
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<B><P ALIGN="CENTER">POWER OF ATTORNEY</P>
<P ALIGN="JUSTIFY">KNOW ALL MEN BY THESE PRESENTS,</B> that each person whose signature appears below constitutes and appoints F. McKamy Hall and Albert E. Guth, and each or any one of them, as true and lawful attorneys-in-fact and agents, with full power of substitution, for him and in his name, place and stead, in any and all capacities, to sign any amendments (including post-effective amendments) to this Registration Statement and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that said attorney-in-fact, or their substitute or substitutes, may lawfully do or cause to be done by virtue thereof.</P>
<P>&#9;Pursuant to the requirements of the Securities Act, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated:</P>
<TABLE CELLSPACING=0 BORDER=0 CELLPADDING=7 WIDTH=603>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P ALIGN="CENTER">SIGNATURE</U></TD>
<TD WIDTH="38%" VALIGN="TOP">
<U><P ALIGN="CENTER">TITLE</U></TD>
<TD WIDTH="28%" VALIGN="TOP">
<U><P ALIGN="CENTER">DATE</U></TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ J. Don Brock</P>
</U><P>J. Don Brock</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>Chairman of the Board and President (Principal Executive Officer)</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ F. McKamy Hall</P>
</U><P>F. McKamy Hall</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>Chief Financial Officer, Vice President and Treasurer (Principal Financial and Accounting Officer)</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">&nbsp;April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ Ronald W. Dunmire&#9;</P>
</U><P>Ronald W. Dunmire</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ Daniel K. Frierson</P>
</U><P>Daniel K. Frierson</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ William D. Gehl</P>
</U><P>William D. Gehl</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</P>
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ Ronald F. Green</P>
</U><P>Ronald F. Green</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</P>
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ Albert E. Guth</P>
</U><P>Albert E. Guth</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</P>
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ R. Douglas Moffat</P>
</U><P>R. Douglas Moffat</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</P>
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ William B. Sansom</P>
</U><P>William B. Sansom</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</P>
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ W. Norman Smith</P>
</U><P>W. Norman Smith</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</P>
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="34%" VALIGN="TOP">
<U><P>/s/ Robert G. Stafford</P>
</U><P>Robert G. Stafford</TD>
<TD WIDTH="38%" VALIGN="TOP">
<P>&nbsp;</P>
<P>Director</TD>
<TD WIDTH="28%" VALIGN="TOP">
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">April 28, 2005</TD>
</TR>
</TABLE>

<B><P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">EXHIBIT INDEX</P>
<P ALIGN="CENTER">TO</P>
<P ALIGN="CENTER">FORM S-8</P>
</B><P ALIGN="CENTER">&nbsp;</P>
<TABLE CELLSPACING=0 BORDER=0 CELLPADDING=7 WIDTH=627>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>4.1</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Restated Charter of the Company (incorporated by reference from the Company's Registration Statement on Form S-1, effective June 18, 1986, File No. 33-5348)</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>4.2</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Articles of Amendment to the Restated Charter of the Company, effective <BR>
September 12, 1988 (incorporated by reference from the Company's Annual Report on Form 10-K for the year ended December 31, 1988)</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>4.3</P>
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Articles of Amendment to the Restated Charter of the Company, effective June 8, 1989 (incorporated by reference from the Company's Annual Report on Form 10-K for the year ended December 31, 1989)</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>4.4 </TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Articles of Amendment to the Restated Charter of the Company, effective January 15, 1999 (incorporated by reference from the Company Quarterly Report on Form 10-Q for the period ended June 30, 1999)</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>4.5</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Amended and Restated Bylaws of the Company, adopted March 14, 1990 (incorporated by reference from the Company's Annual Report on Form 10-K for the year ended December 31, 1989)</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>5.1</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Opinion of Alston &amp; Bird LLP</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>23.1</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Consent of Alston &amp; Bird LLP (included in Exhibit 5.1)</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP" HEIGHT=19><P></P></TD>
<TD WIDTH="89%" VALIGN="TOP" HEIGHT=19><P></P></TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>23.2</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Consent of Ernst &amp; Young LLP</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>23.3</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Consent of Grant Thornton LLP</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>24.1</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>Power of Attorney (included on signature page)</TD>
</TR>
<TR><TD WIDTH="11%" VALIGN="TOP">
<P>&nbsp;</TD>
<TD WIDTH="89%" VALIGN="TOP">
<P>&nbsp;</TD>
</TR>
</TABLE>

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[{"type": "S-8", "sequence": "1", "filename": "s8amndned.htm", "description": "FORM S-8", "secsgml_size_bytes": 24133}]
{"company-data": {"conformed-name": "ASTEC INDUSTRIES INC", "cik": "0000792987", "assigned-sic": "3531", "irs-number": "620873631", "state-of-incorporation": "TN", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-124420", "film-number": "05781188"}, "business-address": {"street1": "1725 SHEPHERD ROAD", "city": "CHATTANOOGA", "state": "TN", "zip": "37421", "phone": "4238995898"}, "mail-address": {"street1": "1725 SHEPHERD ROAD", "street2": "1725 SHEPHERD ROAD", "city": "CHATTANOOGA", "state": "TN", "zip": "37421"}}
As filed with the Securities and Exchange Commission on April 28, 2005.
File No. 333-________
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
________________________________
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
ASTEC INDUSTRIES, INC.
(Exact Name of Issuer as Specified in its Charter)
Tennessee
62-0873631
(State or Other Jurisdiction of Incorporation or Organization)
(I.R.S. Employer Identification Number)
1725 Shepherd Road
Chattanooga, Tennessee 37421
(423) 899-5898
(Address, including zip code, and telephone number of Principal Executive Offices)
Astec Industries, Inc. 1998 Non-Employee Directors Stock Incentive Plan
(Full Title of the Plan)
J. Don Brock
Chairman of the Board and President
Astec Industries, Inc.
1725 Shepherd Road
Chattanooga, Tennessee 37421
Telephone: (423) 899-5898
(Name, address, including zip code, and telephone number, including area code, of agent for service)
Copy to:
LAURA G. THATCHER
Alston & Bird LLP
One Atlantic Center
1201 West Peachtree Street, NW
Atlanta, Georgia 30309-3424
Telephone: (404) 881-7546
Facsimile: (404) 253-8873
CALCULATION OF REGISTRATION FEE
Title of Securities
to be Registered
Amount to
be Registered
Proposed
Maximum
Offering Price
Per Share
Proposed
Maximum
Aggregate
Offering Price
Amount of
Registration Fee
Common Stock
$0.20 par value
150,000 (1)
$22.88 (2)
$3,432,000 (2)
$403.95
(1) 	Amount to be registered consists of an aggregate of 150,000 shares to be issued pursuant to the grant or exercise of awards to non-employee directors under the Astec Industries, Inc. 1998 Non-Employee Directors Plan (the "Plan"), including additional shares that may become issuable in accordance with the adjustment and anti-dilution provisions of the Plan. Astec Industries, Inc. has previously filed a Registration Statement on Form S-8 (SEC File No. 333-123266) with respect to shares issuable under the Plan. This Registration Statement is filed to cover additional shares authorized for issuance under an amendment to the Plan.
(2)	Determined in accordance with Rule 457(h), the registration fee calculation is based on the average of the high and low prices of the Company's Common Stock reported on the Nasdaq National Market on April 22, 2005.
PART I	INFORMATION REQUIRED IN The Section 10(a) Prospectus
(a)	The documents constituting Part I of this Registration Statement will be sent or given to participants in the Plans as specified by Rule 428(b)(1) under the Securities Act of 1933, as amended (the "Securities Act").
(b)	Upon written or oral request, Astec Industries, Inc. (the "Company") will provide, without charge, the documents incorporated by reference in Item 3 of Part II of this Registration Statement. The documents are incorporated by reference in the Section 10(a) prospectus. The Company will also provide, without charge, upon written or oral request, other documents required to be delivered to employees pursuant to Rule 428(b). Requests for the above-mentioned information should be directed to Kim Greene at the address and telephone number on the cover of this Registration Statement.
PART II.	INFORMATION REQUIRED IN REGISTRATION STATEMENT
Item 3.	 Incorporation of Documents by Reference
The following documents filed by the Company with the Securities and Exchange Commission (the "Commission") pursuant to the Securities Exchange Act of 1934, as amended (the "Exchange Act") are incorporated herein by reference and are deemed to be a part hereof from the date of the filing of such documents:
(1)	The Annual Report on Form 10-K of the Company for the fiscal year ended December 31, 2004;
(2)	All reports filed by the Company pursuant to Section 13(a) or 15(d) of the Exchange Act since December 31, 2004; and
(3)	The description of the Common Stock contained in the Company's Registration Statement filed under Section 12 of the Exchange Act, including any amendments or reports filed for the purpose of updating such description.
All other documents subsequently filed by the Company pursuant to Section 13(a), 13(c), 14 and 15(d) of the Exchange Act prior to the filing of a post-effective amendment to this Registration Statement that indicates that all securities offered have been sold or that deregisters all securities that remain unsold shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of filing of such documents.
Any statement contained in a document incorporated or deemed incorporated herein by reference shall be deemed to be modified or superseded for the purpose of this Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also is, or is deemed to be, incorporated herein by reference modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.
Item 4. Description of Securities.
Not applicable.
Item 5. Interests of Named Experts and Counsel.
Not applicable.
Item 6. Indemnification of Directors and Officers.
As permitted under Tennessee law, the Company's Charter provides that a director shall not be personally liable to the Company or its shareholders for monetary damages for breach of fiduciary duty as a director, except that such provision does not eliminate or limit the liability of a director (a) for any breach of the director's duty of loyalty to the Company or its shareholders, (b) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, or (c) for unlawful corporate distributions.
Under its Bylaws, the Company may indemnify and advance expenses to its current and former directors and officers with respect to certain liabilities incurred as a result of any threatened, pending, or completed action, suit or proceeding, whether civil, criminal, administrative, or investigative and whether formal or informal, to which such person is a party because he is or was a director or officer of the Company. The liabilities that may be indemnified against include the obligations to pay judgments, fines, penalties, amounts paid in settlement, and reasonable expenses, including attorneys' fees, incurred with respect to a proceeding. Any such indemnification is predicated upon the proposed indemnitee having met the standard of conduct specified in the Tennessee Business Corporation Act. Determination concerning whether or not the applicable standard of conduct has been met can be made by (a) the Board of Directors by a majority vote of a quorum consisting of disinterested directors, (b) a majority vote of a committee of disinterested directors, (c) special legal counsel, or (d) an affirmative vote of a majority of shares held by the disinterested shareholders. No indemnification shall be made to or on behalf of a director (i) in connection with a proceeding by or in the right of the Company in which the director was adjudged liable to the Company, or (ii) in connection with any other proceeding in which the director was adjudged liable on the basis that personal benefit was improperly received by him. The Company's Bylaws also permit the Company to indemnify or advance expenses to its employees and agents to the same extent as to a director or officer.
Item 7. Exemption from Registration Claimed.
Not applicable.
Item 8. Exhibits.
See Exhibit Index, which is incorporated here by reference.
Item 9. Undertakings.
(a) 	The undersigned Company hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i) To include any prospectus required by section 10(a)(3) of the Securities Act;
(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement; and
(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change in such information in the registration statement.
Provided, however,
that paragraphs (a)(l)(i) and (a)(l)(ii) above do not apply if the registration statement is on Form S-3 or Form S-8, and the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed by the Company pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in the registration statement.
(2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(b)	The Company hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the Company's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act that is incorporated by reference in the registration statement) shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
(h)	Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Company pursuant to Item 6 of this Part II, or otherwise, the Company has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Company of expenses incurred or paid by a director, officer or controlling person of the Company in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the Company will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
(signatures on following page)
SIGNATURES
Pursuant to the requirements of the Securities Act, the Company certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Chattanooga, State of Tennessee, on the 28 day of April, 2005.
ASTEC INDUSTRIES, INC.
By: /s/ J. Don Brock
J. Don Brock
Chairman of the Board and President
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS,
that each person whose signature appears below constitutes and appoints F. McKamy Hall and Albert E. Guth, and each or any one of them, as true and lawful attorneys-in-fact and agents, with full power of substitution, for him and in his name, place and stead, in any and all capacities, to sign any amendments (including post-effective amendments) to this Registration Statement and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that said attorney-in-fact, or their substitute or substitutes, may lawfully do or cause to be done by virtue thereof.
Pursuant to the requirements of the Securities Act, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated:
SIGNATURE
TITLE
DATE
/s/ J. Don Brock
J. Don Brock
Chairman of the Board and President (Principal Executive Officer)
April 28, 2005
/s/ F. McKamy Hall
F. McKamy Hall
Chief Financial Officer, Vice President and Treasurer (Principal Financial and Accounting Officer)
April 28, 2005
/s/ Ronald W. Dunmire
Ronald W. Dunmire
Director
April 28, 2005
/s/ Daniel K. Frierson
Daniel K. Frierson
Director
April 28, 2005
/s/ William D. Gehl
William D. Gehl
Director
April 28, 2005
/s/ Ronald F. Green
Ronald F. Green
Director
April 28, 2005
/s/ Albert E. Guth
Albert E. Guth
Director
April 28, 2005
/s/ R. Douglas Moffat
R. Douglas Moffat
Director
April 28, 2005
/s/ William B. Sansom
William B. Sansom
Director
April 28, 2005
/s/ W. Norman Smith
W. Norman Smith
Director
April 28, 2005
/s/ Robert G. Stafford
Robert G. Stafford
Director
April 28, 2005
EXHIBIT INDEX
TO
FORM S-8
4.1
Restated Charter of the Company (incorporated by reference from the Company's Registration Statement on Form S-1, effective June 18, 1986, File No. 33-5348)
4.2
Articles of Amendment to the Restated Charter of the Company, effective
September 12, 1988 (incorporated by reference from the Company's Annual Report on Form 10-K for the year ended December 31, 1988)
4.3
Articles of Amendment to the Restated Charter of the Company, effective June 8, 1989 (incorporated by reference from the Company's Annual Report on Form 10-K for the year ended December 31, 1989)
4.4
Articles of Amendment to the Restated Charter of the Company, effective January 15, 1999 (incorporated by reference from the Company Quarterly Report on Form 10-Q for the period ended June 30, 1999)
4.5
Amended and Restated Bylaws of the Company, adopted March 14, 1990 (incorporated by reference from the Company's Annual Report on Form 10-K for the year ended December 31, 1989)
5.1
Opinion of Alston & Bird LLP
23.1
Consent of Alston & Bird LLP (included in Exhibit 5.1)
23.2
Consent of Ernst & Young LLP
23.3
Consent of Grant Thornton LLP
24.1
Power of Attorney (included on signature page)