High-strength concrete accelerator

Abstract

The invention discloses a high-strength concrete accelerator, which comprises the following parts: 40-60% alundum clinker, 20-30% green stone slag or boiling stove slag, 12-25% vanadium slag, 4-6% high-effective dehydragent and 1-2% common dehydragent, wherein the alundum clinker is composed of 28--33% titanium slag, 25-28% pure alkaline, 28-32% limestone and 11-15% coal.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a high-strength shotcrete quick-setting agent. Background technique [0002] Most of the existing concrete accelerators have problems such as high cost and large strength loss rate in 28 days. It is composed of several high-priced chemical products such as sodium chloride and cellulose, which not only has high cost, but also has the same technical performance as the commonly used accelerator except for early strength. Another example is CN1194926C "Spraying Concrete Accelerator". The quick-setting agent is made by mixing, stirring and grinding aluminum-oxygen clinker and boiling slag. Oxygen clinker is basically the same, except that industrial waste - boiling slag is used in the final grinding of the finished product, which saves resources and reduces costs, but its technical performance is comparable to that of commonly used accelerators. At present, the development trend of...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low strength and high cost of existing concrete accelerators, the following technical scheme is proposed

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