Composite concrete additive

Abstract

The invention discloses a composite concrete additive. The composite concrete additive is prepared from the following components in parts by weight: 75 to 90 parts of beta-sodium naphthalenesulfonate-formaldehyde condensate, 4 to 15 parts of sodium sulfate, 1 to 5 parts of rosin, 1 to 2 parts of magnesium powder, 0.5 to 3.5 parts of alkylbenzene sulfonate, 1 to 2 parts of triethanolamine, 0.5 to 3.5 parts of silicone, and 0.5 to 1.0 part of calcium chloride. The obtained composite concrete additive can improve the anti-freezing capacity, anti-seepage capacity and anticorrosive capacity of concrete.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a concrete composite admixture. Background technique [0002] In recent years, with the process of urbanization and the continuous acceleration of urban-rural integration, the role of concrete admixtures has become increasingly [0003] important. As we all know, cement concrete is one of the largest building materials today. In our lives, concrete [0004] everywhere. Whether it is roads, bridges, buildings, ports, docks, dams, airports, or Antarctic research stations and ocean drilling platforms, people can touch it all the time, and scientists are still studying the use of cement concrete materials for the outer layer space. [0005] With the development of science and technology, people have higher and higher requirements for engineering technology, engineering quality and service life of buildings. The use of concrete admixtures is one of the best, mo...

AI Technical Summary

Problems solved by technology

However, the selection and addition methods of concrete admixtures will seriously affect the engineering quality of concrete.

[0007] At present, there are many kinds of concrete admixtures available in the market, and there are some defects in actual use: First, although the water-reducing effect is good, the bleeding rate increases, which affects its quality uniformity; second, it has poor adaptability to cement varieties , easy to cause early setting of concrete, affecting the normal construction of the project, how to improve the fluidity of concrete without increasing the bleeding rate, and adapt to the processing of different cement varieties without causing early setting of concrete Commercial concrete is to solve a special problem in the modern construction of commercial concrete