Rice hull ash modified rubber concrete and preparation method thereof

Abstract

The invention relates to rice hull ash modified rubber concrete which is prepared from the following raw materials in parts by weight: 154-192 parts of cement, 520 parts of coarse aggregate, 154-192 parts of fine aggregate, 3.8-15.1 parts of rubber particles, 9.6-38.4 parts of rice hull ash and 96 parts of water. The preparation method of the rice hull ash modified rubber concrete comprises the following steps: cleaning 40-80 mesh rubber particles with water, and drying the rubber particles in a drying oven at 80 DEG C to obtain rubber particles; preparing raw materials according to a weight ratio; putting the weighed cement, coarse aggregate, fine aggregate and rubber particles into a stirring pot, starting a stirrer to stir the materials for 1 min, then adding rice hull ash, and continuously stirring the materials for 1 min until the materials are uniformly mixed; and adding water into the stirring pot, continuously stirring the materials for 3 minutes, pouring the mixture into a mold for pouring molding, and curing the molded product for 28 days to obtain the rice hull ash modified rubber concrete. Compared with rubber concrete, the rice hull ash modified rubber concrete has theadvantages that the compressive strength and breaking strength are greatly improved, the durability is improved, and the rice hull ash modified rubber concrete has remarkable environment-friendly, economic, energy-saving and emission-reducing significance.

Description

technical field [0001] The invention relates to the field of rubber concrete, in particular to rice husk ash modified rubber concrete and a preparation method thereof. Background technique [0002] As the solid waste of waste tires, the recycling and treatment of waste rubber granules has always been an urgent problem to be solved. The waste rubber particles are mixed into the concrete and used as fine aggregate to partially replace the river sand to make rubber concrete, which has good impact resistance, ductility, energy consumption, damping ratio and toughness. It can not only solve the problem of rubber accumulation, but also It can solve the inherent brittleness problem of concrete. However, the incorporation of rubber usually leads to a significant decrease in the mechanical properties of concrete, which seriously affects the application of rubber concrete. [0003] As a by-product of agriculture, rice husk ash is also an excellent pozzolanic material, which can be u...

AI Technical Summary

Problems solved by technology

However, the treatment of rubber particles by physical and chemical methods is often accompanied by a large amount of energy consumption or chemical pollution, and the cost of materials such as silica fume is relatively high.

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