<SUBMISSION>
<ACCESSION-NUMBER>0000792987-08-000027
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20080729
<ITEMS>5.03
<ITEMS>9.01
<FILING-DATE>20080729
<DATE-OF-FILING-DATE-CHANGE>20080729
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>ASTEC INDUSTRIES INC
<CIK>0000792987
<ASSIGNED-SIC>3531
<IRS-NUMBER>620873631
<STATE-OF-INCORPORATION>TN
<FISCAL-YEAR-END>0723
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-11595
<FILM-NUMBER>08974500
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>1725 SHEPHERD ROAD
<CITY>CHATTANOOGA
<STATE>TN
<ZIP>37421
<PHONE>4238995898
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1725 SHEPHERD ROAD
<CITY>CHATTANOOGA
<STATE>TN
<ZIP>37421
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>f8k072908.htm
<DESCRIPTION>AMENDMENT TO BYLAWS
<TEXT>
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    <div>&#160;</div>
    <div style="TEXT-ALIGN: center" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold">UNITED STATES<br>SECURITIES AND
EXCHANGE COMMISSION</font></div>
    <div>&#160;</div>
    <div style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Washington, D.C. 20549</font></div>
    <div>&#160;</div>
    <div style="TEXT-ALIGN: center" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold">FORM 8-K</font></div>
    <div>&#160;</div>
    <div style="TEXT-ALIGN: center" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold">CURRENT REPORT<br>Pursuant to
Section&#160;13 or 15(d) of the Securities Exchange Act of 1934</font></div>
    <div>&#160;</div>
    <div style="TEXT-ALIGN: center" align="center">Date of Report (Date of earliest
event reported): <font style="DISPLAY: inline; FONT-WEIGHT: bold">July 23,
2008</font></div>
    <div>&#160;</div>
    <div style="TEXT-ALIGN: center" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Astec Industries,
Inc.</font></font></div>
    <div style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center">(Exact name of
registrant as specified in its charter)</div>
    <div>&#160;</div>
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              <div>&#160;</div>
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    <div style="MARGIN: 0in 0in 0pt; TEXT-ALIGN: center" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold">1725 Shepherd Road<br>Chattanooga,
Tennessee 37421</font></div>
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principal executive offices) (Zip Code)</div>
    <div>&#160;</div>
    <div style="TEXT-ALIGN: center" align="center">Registrant&#8217;s telephone number,
including area code: <font style="DISPLAY: inline; FONT-WEIGHT: bold">(423)
899-5898</font></div>
    <div>&#160;</div>
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    <div>&#160;</div>
    <div>Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below): </div>
    <div>&#160;</div>
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              <div style="MARGIN: 0in 0in 0pt">Written communications pursuant to
      Rule&#160;425 under the Securities Act (17 CFR 230.425)</div>
              <div>&#160;</div>
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    <div>&#160;</div>
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              <div style="MARGIN: 0in 0in 0pt">Soliciting material pursuant to
      Rule&#160;14a-12 under the Exchange Act (17 CFR 240.14a-12)</div>
              <div>&#160;</div>
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    <div>&#160;</div>
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              <div>&#160;</div>
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    <div>&#160;</div>
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              <div style="MARGIN: 0in 0in 0pt">Pre-commencement communications pursuant
      to Rule&#160;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>
              <div>&#160;</div>
            </td>
          </tr>
      </table>
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    <div style="MARGIN: 0in 0in 0pt"><a name="BM000"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item 5.03.&#160; Amendments to
Articles of Incorporation or Bylaws; Change in Fiscal Year</font></a></div>
    <div>&#160;</div>
    <div style="TEXT-ALIGN: justify">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
<font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On July 23, 2008,
the Board of Directors of Astec Industries, Inc. (the "Company")
approved&#160;amendments to Paragraphs&#160;4.1 and 4.5&#160;of the Company&#8217;s
Amended and Restated Bylaws, effective immediately,&#160;concerning the
qualifications and general powers of the Directors and vacancies in the
Board.&#160; The preceding summary is qualified in its entirety by the Third
Amendment to the Amended and Restated Bylaws of Astec Industries, Inc. attached
hereto as Exhibit 3.1 and incorporated herein by reference.</font></div>
    <div>&#160;</div>
    <div>&#160;</div>
    <div>&#160;</div>
    <div><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item 9.01.&#160; Financial
Statements and Exhibits</font></div>
    <div>&#160;</div>
    <div><font style="DISPLAY: inline; FONT-WEIGHT: bold">(d) Exhibits</font></div>
    <div>&#160;</div>
    <div>
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              <div><font style="DISPLAY: inline; FONT-WEIGHT: bold">Exhibit
      No</font>.</div>
            </td>
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              <div>&#160;</div>
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              <div><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Third&#160;Amendment
      to the Amended and Restated Bylaws of Astec Industries, Inc.</font></div>
              <div>&#160;</div>
            </td>
          </tr>
      </table>
    </div>
    <div>&#160;</div>
    <div>&#160;</div>
    <div>&#160;</div>
    <div>&#160;</div>
    <div>&#160;</div>
    <div><br clear="all"></div>
    <div><font style="FONT-WEIGHT: bold">SIGNATURES</font> </div>
    <div>&#160;</div>
    <div style="TEXT-INDENT: 0.5in; TEXT-ALIGN: justify"><font style="FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant to the
requirements of the Securities Exchange Act of 1934, as amended, the Registrant
has duly caused this report to be signed on its behalf by the undersigned
hereunto duly authorized. </font></div>
    <div>&#160;</div>
    <div style="TEXT-INDENT: 0.5in; TEXT-ALIGN: justify">&#160;</div>
    <div>&#160;</div>
    <div style="TEXT-INDENT: 0.5in; TEXT-ALIGN: justify">&#160;</div>
    <div>&#160;</div>
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              <div style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Date: July 29
      2008</font></div>
              <div>&#160;</div>
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              <div style="MARGIN: 0in 0in 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold">ASTEC INDUSTRIES,
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              <div>&#160;</div>
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              <div style="MARGIN: 0in 0in 0pt"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">By:</font><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman; TEXT-DECORATION: underline">/s/
      F. McKamy Hall<br></font>F. McKamy Hall<br>Vice President and Chief
      Financial Officer <br>(Principal Financial Officer)</font></div>
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              <div>&#160;</div>
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    <div>&#160;</div>
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    <div>&#160;</div>
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<DOCUMENT>
<TYPE>EX-3.1
<SEQUENCE>2
<FILENAME>exhibit3-1.htm
<DESCRIPTION>BYLAWS AMENDMENT EXHIBIT
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    <div style="TEXT-ALIGN: right"><font style="FONT-WEIGHT: bold">&#160;Exhibit
3.1</font><br></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; TEXT-DECORATION: underline">THIRD AMENDMENT TO THE
AMENDED AND RESTATED</font></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; TEXT-DECORATION: underline">BYLAWS OF ASTEC INDUSTRIES,
INC.</font></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; TEXT-DECORATION: underline">ADOPTED&#160;&#160;JULY 23,
2008</font></font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>The following amendments to the Amended
and Restated Bylaws of Astec Industries, Inc. were approved by at least a
two-thirds majority of the directors by action taken at a meeting of the Board
of Directors held on July 23, 2008:</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>1).&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Paragraph
4.1 as amended by the First Amendment to the Amended and Restated Bylaws on July
29, 1993 is deleted in its entirety and the following Paragraph 4.1 is
substituted in lieu thereof:</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 72pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 72pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">4.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="DISPLAY: inline; TEXT-DECORATION: underline">Qualifications and General
Powers</font>.&#160;&#160;Members of the Board of Directors need not be
shareholders of the corporation and need not be residents of the State of
Tennessee.&#160;&#160;&#160;All corporate powers shall be exercised by or under
the authority of, and the business and affairs of the corporation shall be
managed under the direction of, the Board of Directors.&#160;&#160;In addition
to the powers and authority expressly conferred upon it by these Bylaws, the
Board of Directors may exercise all powers of the corporation and do all lawful
acts and things that are not by law, by the charter or these Bylaws directed or
required to be exercised or done by the shareholders.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>2).&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Paragraph
4.5 is deleted and the following Paragraph 4.5 is substituted in lieu
thereof:</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 72pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 72pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">4.5&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="DISPLAY: inline; TEXT-DECORATION: underline">Vacancies in
Board</font>.&#160;&#160;A vacancy on the Board of Directors, however occurring,
whether by increase in the number of Directors, resignation, retirement,
disqualification, removal from office, death or otherwise, may be filled, until
the next election of Directors of the same class by the shareholders, by the
affirmative vote of at least two-thirds (2/3) of the total number of Directors
of all classes then remaining in office, even if they constitute less than a
quorum of the Board of Directors.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font>Certified by the Secretary of the
Corporation this&#160;&#160;23rd day of July, 2008.</font></div>
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    <div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
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              <td width="50%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;<font style="TEXT-DECORATION: underline">/s/Stephen C.
  Anderson</font></font></td>
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              <td width="50%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;Stephen C.
      Anderson</font></td>
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              <td width="50%"><font style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;Secretary</font></td>
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      <div>&#160;</div>
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