Calcium enriched high strength concrete admixture and its preparation method and use method

Abstract

The present invention relates to a calcium-increased type high-strength concrete blending material, its preparation method and application method. Said concrete blending material includes 70-90% of fly ash, 5-20% of tap cinder, 1-5% of calcium hydroxide, 0.5-3% of sodium sulfate, 0.1-0.5% of silane coupling agent, 0.01-1% of triethanolamine and 0.1-1% of water reducer. Said invention also provides the concrete steps of its preparation method and application method.

Description

technical field [0001] The invention relates to a concrete building material and its production process and use method, in particular to a concrete admixture with fly ash as the main raw material and its production process and use method. Background technique [0002] Adding ordinary fly ash as an admixture to fresh concrete is a traditional practice in building construction. However, due to the uneven quality of fly ash, the performance varies greatly. Although some can improve the mechanical properties and durability of concrete, However, due to the lack of activity of fly ash for most of them, the dosage generally does not exceed 15% of the cement dosage, and after adding it, the early strength of concrete is often reduced. In concrete construction, in order to meet the design requirements and improve the performance of concrete, a variety of admixtures and admixtures are often added. Powdery materials such as fly ash are excessively aggregated and bonded together after a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a calcium-increasing high-strength concrete admixture and its preparation method and use method, to solve the problem of insufficient activity of traditional concrete admixtures, too low dosage, and often reduce the early strength of concrete; The mixed concrete admixture is not shaped, the performance of the prepared concrete is unstable, frequent tests, high cost, unreasonable proportioning, and complex construction and use.