Slag cement modification strengthening agent

Abstract

The invention relates to a steel slag cement active enhancer. The steel slag cement active enhancer is composed of potassium aluminum sulfate, ammonium aluminum sulfate, sodium metesilicate, ferrous sulfate and melamine resin, thereby leading the early stage hydration process to timely generate appropriate amount of ettringite, calcium silicate hydrate, xonotlite, gyrolite, thomsonite, natrolite, analcime, calcium iron sulfide hydrate, calcium sulphoaluminate hydrate and others to form a cross-linked frame structure and allowing the later stage to be continuously strengthened and meet the comprehensive requirements of the use. The steel slag cement active enhancer is characterized in that: the reflected strength, the coagulation time and other performances of the early stage frame structure can achieve or be higher than the performances of the same-stage general portland cement; multi-center substances which are formed by the secondary reaction and the continuous hydration and are penetrated and connected can ensure the calcium complex salt structure to be continuously thickened and strengthened; the early stage strength is high, the coagulation time is moderate, hardened cement paste and the prepared concrete have better workability, compactibility, durability, impermeability, anti-shrinkage property, corrosion resistance, anti-freeze-thaw property, anti-carbonization property and the like; the mixing amount is less, the performance to price ratio is low, the steel slag cement active enhancer has low alkali, no chlorine, no toxicity and no side effects; and the application range is wide.

Description

technical field [0001] The invention belongs to cement modified reinforcing agent. Background technique [0002] The traditional steel slag cement reinforcement technology is limited by the poor activity of steel slag. The method of adding active activator in a large dose of 3% to 10% is used, which has high cost, large side effects, low hydration rate and effective utilization rate, and long setting time. The early strength is low, which cannot meet the normal construction requirements and cannot be widely used. For this reason, special make following invention. Contents of the invention [0003] The purpose of the present invention is to provide a content of 1% and fundamentally stimulate the activity of steel slag cement, improve the comprehensive performance, increase the hydration rate and the effective utilization rate, so that the setting time, the strength of each age, and the constructability can meet the construction requirements, and the comprehensive performan...

AI Technical Summary

Problems solved by technology

[0002] The traditional steel slag cement reinforcement technology is limited by the poor activity of steel slag. The method of adding active activator in a large dose of 3% to 10% is used, which has high co