Missouri Department of Transportation (MoDOT) · Missouri Standard Specifications for Highway Construction
Section 1018 — Fly Ash for Concrete
Missouri Missouri Standard Specifications for Highway Construction, Section 1018. Full text, cross-references and related pay items on BuildSpec.
1018 FLY ASH FOR CONCRETE 1018.1 Scope. This specification covers fly ash for use in concrete. 1018.2 General. Only fly ash from sources qualified in accordance with these specifications will be permitted. The mixing of different classes and sources of fly ash will not be permitted. All fly ash shall be in accordance with AASHTO M 295, Class C, F or N, except as herein specified. 1018.2.1 Class C fly ash shall meet either (a) or (b) of the following requirements: (a) The 7-day Strength Activity Index with Type IL cement shall be a minimum of 85 percent of the control. (b) The Calcium oxide…
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