Method for determining critical adding amount of coal ash in sulfate corrosion resisting concrete for cast-in-place pile
A technology of anti-sulfate and determination method, applied in chemical instruments and methods, clay preparation devices, data processing applications, etc., to achieve the effect of avoiding adverse effects
Inactive Publication Date: 2016-06-08
HEBEI CONSTR & INVESTIGATION RES INST
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Abstract
The invention discloses a method for determining the critical adding amount of coal ash in sulfate corrosion resisting concrete for a cast-in-place pile. According to the technical scheme, the method is characterized in that the critical adding amount level of the coal ash is calculated through the formula (1) according to the contents of C3S and C2S in adopted cement and the content of SiO2 in the coal ash. According to the method, the defects of traditional rough estimation methods are overcome, the pozzolan effect of the coal ash is utilized to the greatest extent, the maximum function of the coal ash in sulfate corrosion resisting of the concrete is achieved, the situation that too much coal ash possibly brings adverse effects to the concrete is avoided, and bases are provided for ratio optimization design of the sulfate corrosion resisting concrete. A concrete durability test result verifies the accuracy of the method.
Application Domain
Mixing operation control apparatusForecasting +2
Technology Topic
CoalAdverse effect +7
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