Concrete super instant coagulant

Abstract

The invention discloses a concrete early-strength agent, which is characterized in comprising the following components according to weight percentage: inorganic salt early-strength component 35-55 percent, organic early-strength component 5-10 percent, water reducing component 15-25 percent, wherein the inorganic salt early-strength component is prepared by at least two among sulfate, carbonate, nitrate, and nitrite; the organic early-strength component selects any one among calcium formate, sodium acetate, calcium oxalate, triethanolamine, tri-iso-propanolamine and carbamide; the water reducing component selects one among naphthalenesulfuric acid type, melamine type and polycarboxylate type. The invention makes the concrete be coagulated and hardened rapidly under the condition of low temperature, so that the early strength of the concrete is greatly improved as well as later strength is ensured.

Description

technical field [0001] The invention relates to a concrete admixture, in particular to a concrete super early strength agent for improving early and late strength of concrete and shortening hardening time. Background technique [0002] With the rapid development of social economy, the requirements for concrete are getting higher and higher. According to statistics, more than 80% of commercial concrete and self-mixing concrete are mixed with concrete admixtures to improve performance and meet construction requirements. At present, concrete admixtures are mainly developed in the direction of high efficiency, multi-function and compounding. The use of composite admixtures can improve the workability of fresh concrete, such as increasing fluidity, reducing the loss of concrete slump over time, etc.; it can improve the stability of concrete, such as homogeneity, no segregation, no bleeding, etc.; Adjust the hydration and hardening process of cement, such as delaying the heat re...

AI Technical Summary

Problems solved by technology

[0006] In view of the fact that the early strength of ordinary concrete early strength agents does not increase much and the hardening time is slow, the invention provides a super early strength agent for concrete, which can not only greatly improve the early strength and later strength of concrete, but also improve the workability of concrete , stability and durability

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