High performance concrete pumping agent controlling falling degree loss type

Abstract

The invention relates to a high-performance concrete pumping agent of controlling loss of concrete slump, composed of benzene solfonic acid formaldehyde condensation compound water reducer, polyvinyl alcohol, sodium lauryl sulfate, citric acid, sodium gluconate and water. It can improve the fluidity of concrete by a large margin, make the concrete slump constant basically in 2-4 hours, reduce seepage water, enhance strength and improve the durability of concrete. It is applied to the constructions (structures) of premixed concrete commodity, high-strength high-performance concrete, reinforced concrete, etc.

Description

technical field

[0001] The invention belongs to the technical field of building materials, and in particular relates to a high-performance concrete pumping agent for controlling slump loss. Background technique

[0002] Commercial ready-mixed concrete adopts specialized production technology and centralized mixing supply process, which not only speeds up the concrete construction speed, but also greatly increases the mixing ratio of admixtures and various active mineral admixtures in concrete, effectively utilizing solid waste, saving This has laid a solid foundation for saving energy, saving resources and protecting the environment, and realizing the sustainable development of concrete, a bulk building material.

[0003] The ready-mixed concrete is poured by pumping technology at the construction site, which requires the concrete to have good fluidity and pumpability. In addition, since the mixing station is a certain distance from the construction site, commercial ready-mi...