High-performance concrete additive and preparation process thereof

Abstract

The invention relates to the field of concrete additives and discloses a high-performance concrete additive. The high-performance concrete additive comprises the following components in parts by weight: 80-100 parts of a water reduction component, 10-15 parts of an early strength component, 80-100 parts of an energy absorption component, 3-7 parts of a viscosity reduction component and 100-150 parts of water, wherein the water reduction component is a acrylic acid type polycarboxylic acid water reduction component; the early strength component is selected from one or more of calcium formate, calcium nitrate and triethanolamine; the energy absorption component is a light-cured resin component; the viscosity reduction component is polyethylene glycol. The high-performance concrete additive is high in water reduction rate and good in early strength effect and rust prevention effect; besides, shock prevention and energy dissipation effect of concrete are achieved, the cracking of the concrete is avoided, and the durability of the concrete is improved.

Description

technical field [0001] The invention relates to the field of concrete admixtures, in particular to a high-performance concrete admixture and a preparation process thereof. Background technique [0002] In recent years, my country's infrastructure construction is in full swing. In a modern society that emphasizes fast-paced and high-efficiency, people have higher and higher requirements for the construction speed of infrastructure construction under the premise of ensuring quality. The higher the efficiency of infrastructure construction, such as traffic roads, bridges, key buildings, etc., can be completed as soon as possible, not only can be put into use as soon as possible, but also can minimize the impact on surrounding residents and the environment. [0003] During the construction process, the curing time of concrete is a key factor in the speed of the entire project construction. Therefore, in many current projects, early strength agents that can quickly solidify conc...

AI Technical Summary

Problems solved by technology

However, while the concrete is hardening rapidly, some problems also arise: the concrete will be self-drying and deform to a certain extent during the hydration process, but due to the fast curing rate of the concrete after adding the early strength agent, the concrete matrix deforms and produces internal The stress is too late to be released. After a long time, under the synergy of external force and internal stress, concrete is prone to cracks, which reduces its durability.

However, adding various admixtures in the actual use process is complicated and inconvenient to use, which reduces the efficiency of engineering construction