Preparation method of high-strength fast anchoring agent and slurry thereof

Abstract

The invention provides a high-strength rapid anchoring agent. The high-strength rapid anchoring agent comprises a main material and an auxiliary material, wherein the main material is prepared from the following raw materials by weight percent: 30 to 50 percent of sulphoaluminate cement, 15 to 25 percent of early-strength silicate cement, 25 to 35 percent of find sand, 3 to 7 percent of calcium sulfate, and 3 to 7 percent of calcium carbonate; and the auxiliary material is prepared from the following raw materials by weight percent relative to the main material: 0.7 to 1.3 percent of magnesiumoxide, 0.7 to 1.3 percent of silica powder, 0.7 to 1.3 percent of naphthalene based water reducer, and 0.07 to 0.13 percent of boric acid. The rapid anchoring material provided by the invention has the following beneficial effects: (1) the maintenance time is short, the pressure resisting strength is high, the indoor pressure resisting strength in 24 hours under the standard maintenance conditioncan reach 30MPa, and the construction requirement of safety, rapidness and high standard can be met; (2) the primary solidification of the serous fluid is controllable, the mobility is good, and theuse is convenient; and (3) the volume stability is good, and the anticorrosion performance is good.

Description

technical field [0001] The invention belongs to the technical field of reinforcing materials for building structures, and in particular relates to a high-strength fast anchoring agent and a method for preparing slurry thereof. Background technique [0002] Anchoring agents are widely used in the processing engineering of building structures, and are usually divided into organic anchoring agents and inorganic anchoring agents in terms of material composition. Organic anchoring agents have fast curing speed, high anchoring strength, and large bearing capacity, but they have disadvantages such as harsh construction conditions, easy embrittlement in alkaline environments, easy aging, high toxicity, and high price. Inorganic anchoring agent is mainly composed of Portland cement or sulfoaluminate cement compounded with various functional admixtures, admixtures and inorganic fillers. It has fire resistance, no aging, elastic modulus close to concrete, wet operation, and relatively ...

AI Technical Summary

Problems solved by technology

However, the inorganic anchoring agents currently on the market require a long curing time, usually 3 to 7 days, which cannot meet the requirements of rapid construction

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