FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * BROCK J DON   2. Issuer Name and Ticker or Trading Symbol ASTEC INDUSTRIES INC [ASTE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CEO-Astec Industries, Inc. (Last) (First) (Middle) 4101 JEROME AVE 3. Date of Earliest Transaction (Month/Day/Year) 03/07/2005 (Street) CHATTANOOGA, TN 37407 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price common stock 03/07/2005   S   6,000 D $ 19.5405 2,369,330 (1) D   common stock 03/09/2005   S   11,556 D $ 19.0752 2,357,774 D   common stock 03/09/2005   S   7,444 D $ 19.0752 10,556 I Wife, Sammye M. Brock (2) common stock               264,708 I Mother's shares over which Mr. Brock has POA (1) (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BROCK J DON 4101 JEROME AVE CHATTANOOGA, TN 37407	X		CEO-Astec Industries, Inc.

Signatures

Kimberly Greene, atty in fact for J. Don Brock		03/09/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	The total direct ownership of the Reporting Person filed on the previous most recent Form 5 inadvertantly included the indirect holdings as well. The total direct holdings shown on this Form 4 correctly include only those holding held directly. Indirect ownership is reported separately.
(2)	On previously filed Form 4s, the Reporting Person has reported in Table I indirect ownership of phantom shares held in a Supplemental Executive Retirement Plan. These phantom shares, which are payable in cash following the Reporting Person's termination of employment with the Issure, are not included in Table I of this Form 4 because they are derivative securities of the Issuer that should be reported in Table II.

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