With the rapid development of my country's large-scale urbanization construction and ready-mixed concrete technology, concrete chemical admixtures, especially superplasticizers, improve the overall performance of freshly mixed and hardened concrete, change concrete preparation and construction methods, and promote the development of new concrete technologies And it helps to save resources and environmental protection. It has gradually become an indispensable component or fifth component of ready-mixed concrete. Statistics from the Concrete Admixture Branch of the China Building Materials Federation show that polycarboxylic acid-based water-reducing agents are currently one of the most widely used water-reducing agents in my country.
3-Mercaptopropionic acid, a new type of cement admixture-polycarboxylic acid water reducer, is mainly used to control molecular weight in the production of polycarboxylic acid water reducer, a high-performance mediator, and greatly improve the water reduction of concrete Rate and slump retention performance. Improve the copolymerization rate of monomer carboxylic acid monomer as a chain transfer agent for colleges and universities. Adjust the relative molecular mass of the water reducing agent. Proper main chain length can achieve both initial water reduction and subsequent collapse protection. Adjust the adsorption process of polycarboxylic acid molecules.