Water-absorbent resin plastic concrete and preparation method thereof

Abstract

The invention provides water-absorbent resin plastic concrete and a preparation method thereof. The water-absorbent resin plastic concrete has the following mixing ratio parameters: the water-binder ratio is 0.5-2.0; the unit water consumption is 220-350 kg / m3; wherein the sand rate is 40%-100%; the dosage of the coarse aggregate is 0-1200 kg / m3; the mixing amount of the water reducing agent is 0-2.5% of the mass of the cementing material; the mixing amount of the admixture is 0-50% of the mass of the cementing material; the mixing amount of bentonite and / or clay is 20%-80% of the mass of thecementing material; the mixing amount of the water-absorbent resin powder coated with stearic acid on the surface is 0.1-2% of the mass of the cementing material. According to the invention, the water-absorbent resin powder coated with stearic acid on the surface is added into the plastic concrete, so that the water-absorbent resin is exposed after the plastic concrete is coagulated and hardened,and the impermeability of the plastic concrete is improved.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, and in particular relates to a water-absorbing resin plastic concrete and a preparation method thereof. Background technique [0002] Plastic concrete is a material with mechanical properties and denaturation properties between soil and ordinary concrete. The elastic modulus of plastic concrete is similar to the elastic modulus of the foundation. It has greater flexibility and can better adapt to the deformation of the foundation. It is combined with the foundation and has a greater ultimate deformation than ordinary concrete. Therefore, it has better resistance. Crack and earthquake resistance. At the same time, plastic concrete has excellent anti-seepage performance, which can effectively reduce the leakage of the cut-off wall. Moreover, plastic concrete also has good workability, long final setting time and low strength, which can be better constructed and easy to opera...

AI Technical Summary

Problems solved by technology

When water-absorbent resin is added to concrete, the water-absorbent resin can absorb a large amount of water during the mixing process and will not cause the water to escape during the mixing process, but the heat emitted during the hydration and setting of the cement will make it The water in the water-absorbent resin evaporates, causing the water-absorbent resin to lose water and become smaller, thereby forming corresponding pores in the concrete and reducing the anti-seepage performance of the concrete

Add water-absorbing resin in concrete as CN110482969A, CN110482969A, gained concrete all does not have anti-seepage property

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