Light permeable flexible rubber pavement brick and preparation method thereof

Abstract

The invention provides a light permeable flexible rubber pavement brick and a preparation method thereof. The raw materials and the weight parts thereof are as follows: 900-1200 parts of waste rubberparticles, 300-420 parts of cement, 25-50 parts of silica fume, 0.6-1.2 parts of cellulose ether, 4-6 parts of a water reducing agent, 2-3.5 parts of water soluble epoxy resin and 120-150 parts of water. The method is as follows: mixing the cement, silica fume and cellulose ether evenly in proportion, then adding the waste rubber particles, and continuing stirring to make the mixture even; mixing80% of the water and 100% of the water reducing agent and stirring evenly, and then adding into the solid mixture to be mixing evenly; pouring 100% of the water-soluble epoxy resin into the remaining20% water, then adding into the mixture, stirring and mixing; loading into a mold, and performing static pressure molding; curing and demoulding. The pavement brick has high compressive strength, highwater permeability, light dead weight, flexibility and comfort, and good noise reduction and sound absorption performance.

Description

【Technical Field】 [0001] The invention relates to the field of composite pavement materials, in particular to a lightweight water-permeable flexible rubber pavement brick using waste rubber particles as aggregates and a preparation method thereof. 【Background technique】 [0002] Waste rubber is a kind of thermosetting polymer plastic, which is difficult to degrade under natural conditions. If it is discarded on the ground or buried in the ground, it will not rot and degrade for more than ten years. The main source of waste rubber is waste tires. According to statistics, as of 2015, the number of waste tires in my country reached more than 50 million, and only about 1.4% of the total was disposed of. The "black pollution" formed by waste tires is putting more and more pressure on my country's environmental protection work. At present, the main utilization of waste rubber is direct utilization, production of reclaimed rubber and rubber powder, but the overall utilization rate is l...

AI Technical Summary

Problems solved by technology

[0003] Traditional permeable bricks mainly made of natural coarse aggregate are heavy in weight, hard in texture, poor in foot feel, and poor in sound absorption and noise reduction. Rubber permeable concrete is a new field. At present, there are few related researches. The relatively mature research results are It was obtained by Mehmet Gesoglu and Erhan Güneyisi of Turkey, who used 10-12.5mm single particle size coarse aggregate and Portland cement with a strength grade of 42.5R, and added different fineness and dosage to it. 10% and 20% tire strips, rubber powder and fine rubber powder, the obtained rubber concrete has a lower strength, the lowest is only 6.45MPa; Domestic Taiyuan University of Technology, North China University of Water Resources and Hydropower, Shenyang University, Tianjin University, A few units such as Jiangsu Xianda Construction Group Co., Ltd. have carried out research on rubber permeable materials, but there are the following defects: 1. The compressive strength is low. In most studies, when the rubber particle content exceeds a certain proportion, the strength drops significantly. Some, when the dosage is 30%, the compressive strength is only about 10MPa; 2. The waste rate is low. At present, all rubber permeable materials are mainly natural coarse aggregate, and the amount of waste rubber particles is low. It even needs to be mixed with fine aggregates such as sand, which will affect the final water permeability of the product; 3. The weight is relatively large. Since the existing research is still based on natural coarse aggregate, the product has a large weight and the foot feels Hard, noise reduction and sound absorption performance is not outstanding enough

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