Self-compaction composite concrete, preparation method therefor and concrete wall bricks

Abstract

The invention relates to the technical field of building materials and particularly relates to self-compaction composite concrete, a preparation method therefor and concrete wall bricks. According tothe self-compaction composite concrete, Portland cement and thiophosphate cement are compounded as a cement ingredient, and thiophosphate cement is creatively selected; specific furnace slag, steel slag and ferrum tailings are compounded as an aggregate ingredient; cellulose ether and beta-cyclodextrin are combined as a dispersant; the cement ingredient, the aggregate ingredient and an auxiliary ingredient are divided into three ingredients and are separately packaged to form the self-compaction composite concrete; and in a process of casting the concrete wall bricks by forming slurry by usingthe concrete disclosed by the invention, the ingredients can be added and mixed in groups according to characteristics of each ingredient. The fluidity, filling property, segregation resistance and strength of the self-compaction composite concrete disclosed by the invention are improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-compacting composite concrete, a preparation method thereof, and concrete wall bricks. Background technique [0002] Self-compacting composite concrete means that relying on self-gravity without additional mechanical vibration force, it can have sufficient flow and deformation capacity, even if there are dense steel bars, it can fill the formwork space and form dense and uniform concrete. The preparation of self-compacting composite concrete generally reduces the yield stress of the concrete enough to be overcome by the shear force generated by its own weight through the selection and matching of admixtures, cementitious materials, coarse and fine aggregates, and careful mix ratio design, making the concrete fluidity At the same time, it has sufficient plastic viscosity to suspend the aggregate in the cement slurry without segregation and bleeding problems. It c...

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Problems solved by technology

[0003] Traditional self-compacting composite concrete usually uses natural sand and gravel as aggregates, resulting in over-exploitation of natural river beds, resulting in the loss of mineral resources and unstable river regimes, posing a serious threat to flood control, water ecological security, and the safety of people's lives and property

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