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When is calcium formate used as an early strength agent

March 07, 2020
1. Expressway cement concrete pavement or bridge deck pavement, especially level crossings of Grades 1, 2, and 3. When paving the cement concrete pavement in one direction, not only the road under construction cannot be opened to traffic, but vehicles in other directions crossing the plane cannot use Calcium Formate early-strength cement concrete for construction at night, which can provide vehicle traffic in the shortest period of time. Convenient.
2. Prestressed reinforced concrete structures, such as prestressed reinforced concrete bridges under low temperature tension or early tension at normal temperature, need to use early strength agents to accelerate the prestressed tension time and increase the speed of component production.
The Formic ACID in calcium formate is a weak acid, and there is a hydrolysis process in the aqueous solution. Therefore, the aqueous solution of calcium formate should be weakly alkaline. Industrial calcium formate can also be used in reinforced concrete to achieve early strength and initial setting.
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Author:

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8613053341533

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