Attachment to C-408/94-207
Section 724
April 28, 1999

COMMONWEALTH OF PENNSYLVANIA
Department of Transportation
Harrisburg

POZZOLANS

Supplementing the Specifications
Publication 408 dated 1994

SECTION 724.2(b) For Use With Cement Concrete. Revise as follows:

(b) For Use With Cement Concrete. AASHTO M-295, Class C, F or N, except limit Loss on Ignition to a maximum of 6.0%. Certify as specified in Section 106.03(b)3.

Add the following new subpart:

SECTION 724.4 Silica Fume -

(a) For Use With Cement Concrete. AASHTO M-307, (Also called Micro Silica) Certify as specified in Section 106.03(b)3.

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