Rubber particle weight increasing method and preparation method of rubber concrete

Abstract

The invention provides a rubber particle weight increasing method and a preparation method of a rubber concrete. Through the rubber particle weight increasing method, the weight and the density of a rubber particle are increased, the rubber particles are more evenly distributed in the concrete, and the mechanical property of the rubber concrete is improved. The related rubber particle weight increasing method is characterized by comprising the following steps: 1, weighing a certain amount of the rubber particles, soaking with clear water until the particles completely sink down and no bubble exists on the surfaces of the particles; 2, taking out the rubber particles, adding the rubber particles into a cement paste and stirring, wherein the volume ratio of the rubber particles to the cement paste is 1:1 and 20% of a cement accelerator is doped in the cement paste; 3, observing the thickness of a mixture, adding proper amount of water until the slump constant of the mixture is 6-10, stirring for a certain period of time; 4, evenly spreading the mixture by using a shovel blade, basically separating the particles, and airing naturally; 5, screening an excessive powder by using a mesh sieve, maintaining in water for a plurality of days, and taking out; 6, stirring the rubber once every few hours, stirring for times, airing until the particles are grey white, and obtaining the weight increased rubber particles.

Description

technical field [0001] The invention belongs to the field of concrete materials, and in particular relates to a rubber particle weight-increasing method and a corresponding rubber concrete preparation method. Background technique [0002] Rubber concrete is a new type of building material. Adding rubber particles into concrete not only provides a new way to solve the black pollution caused by waste tires, but also improves the toughness of concrete to a certain extent. The performance of rubber concrete is between ordinary concrete (rigidity) and asphalt concrete (flexibility), and has good toughness, durability, crack resistance, shock absorption, impact resistance and noise reduction and sound insulation performance. [0003] However, it can be seen from many studies conducted by scholars at home and abroad that the experimental data of rubber concrete are very discrete, and sometimes even contradictory. The lower the compressive strength of concrete is, the smaller it i...

AI Technical Summary

Problems solved by technology

However, the density of rubber particles is small, and the problem that the surface is different from ordinary concrete aggregates is still unsolved.

This makes rubber concrete in the process of preparation, there are still problems such as rubber particles are easy to clump when stirred, easy to float when vibrated, and the bond is not dense after forming.

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