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Rubber and plastic concrete and preparation method thereof

A concrete, rubber and plastic technology, applied in the field of concrete, can solve the problems of strength reduction and achieve the effect of low production cost and simple and convenient connection process

Inactive Publication Date: 2018-03-16
LINYI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of strength reduction of concrete mixed with rubber powder in the prior art, the invention provides a rubber-plastic concrete and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The rubber-plastic concrete provided by the invention includes coarse aggregate, fine aggregate and cementitious material, and the cementitious material can be cement. The rubber-plastic concrete also includes rubber-plastic particles, steel fibers and polypropylene fibers; the rubber-plastic particles are between 30 and 80 meshes, and the volume ratio of the rubber-plastic particles is between 10% and 40%; the steel fibers and polypropylene fibers The sum of the volume ratio of the propylene fiber is between 0.5% and 2.0%, and the volume ratio of the steel fiber and the polypropylene fiber is 15:1. The polypropylene fibers are connected to rubber and plastic particles.

[0020] In the rubber-plastic concrete mentioned above, the polypropylene fibers are connected to the rubber-plastic particles, which can enhance the bonding strength between the rubber-plastic particles and the cement. The aggregation of polypropylene fibers near the rubber-plastic particles can also m...

Embodiment 2

[0022] The present invention also provides the preparation method of above-mentioned rubber-plastic concrete, and specific preparation steps are as follows:

[0023] The first step is to heat the rubber and plastic particles until the surface layer melts, and then mix and stir the heated rubber and plastic particles with polypropylene fibers to obtain rubber and plastic particles connected with polypropylene fibers;

[0024] In the second step, the rubber and plastic particles connected with polypropylene fibers, polypropylene fibers separated from the rubber and plastic particles, steel fibers, coarse aggregate, fine aggregate and cementitious material are mixed to obtain a mixture;

[0025] In the third step, the mixture obtained in the second step is stirred evenly, and then water is added to continue stirring.

[0026] Further, the stirring with water in the third step is carried out in a uniform magnetic field. The setting of the magnetic field can conveniently adjust th...

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Abstract

The invention provides rubber and plastic concrete which comprises rubber and plastic granules, a steel fiber and a polypropylene fiber, wherein the polypropylene fiber is connected with the rubber granules. The invention further provides a preparation method of the rubber and plastic concrete. The preparation method comprises the following steps: firstly, heating the rubber and plastic granules till surface layers are molten; mixing and stirring the heated rubber and plastic granules with the polypropylene fiber so as to obtain rubber and plastic granules connected with the polypropylene fiber; further mixing the rubber and plastic granules connected with the polypropylene fiber with a cementing material and the steel fiber; putting coarse aggregate and fine aggregate into the mixture obtained in the former step, uniformly stirring, and continuously stirring with water. By adopting the preparation method of the rubber and plastic concrete, the surfaces of the rubber and plastic granules are molten through rapid heating, the polypropylene fiber is connected with the rubber and plastic granules through a molten rubber and plastic material, and the preparation process is simple and convenient to implement. As the polypropylene fiber is connected with the rubber and plastic granules, the strength and the toughness of the rubber and plastic concrete are improved, and the cracking resistance of the concrete is improved.

Description

technical field [0001] The invention relates to a concrete, in particular to a rubber-plastic concrete added with rubber-plastic particles and having high concrete strength. Background technique [0002] The existing rubber concrete is made by adding an appropriate amount of rubber powder into the concrete, and the addition of the rubber powder has a good effect on improving the toughness and impact resistance of the concrete. However, adding rubber powder to concrete will lead to a reduction in the strength of cement concrete, and the reduction is related to the amount of rubber powder, the type of rubber powder, and whether the rubber powder is modified. Contents of the invention [0003] In order to solve the problem of strength reduction of concrete mixed with rubber powder in the prior art, the invention provides a rubber-plastic concrete and a preparation method thereof. [0004] A kind of rubber-plastic concrete provided by the present invention comprises coarse ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B14/00C04B16/04C04B14/48C04B16/0633
Inventor 王南刘勤威
Owner LINYI UNIVERSITY
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