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Waste tire rubber regeneration concrete and preparation method thereof

A technology of waste tire rubber and recycled concrete, which is applied in the field of building materials, can solve problems such as poor impact resistance, low concrete strength, and easy cracking, and achieve strong mechanical resistance, improved various properties, and large air-entraining capacity. Effect

Inactive Publication Date: 2019-03-22
QINGHAI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, concrete still has the disadvantages of low strength, poor bending resistance, poor impact resistance, large drying shrinkage, and easy cracking.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of waste tire rubber recycled concrete, prepared by the following method:

[0033] S1. Weigh by weight: 360 parts of Portland cement, 500 parts of natural coarse aggregate, 200 parts of recycled coarse aggregate, 363 parts of waste tire rubber powder, 70 parts of fly ash, 400 parts of debris, rice husk ash 16.5 parts, 13 parts of slag powder, 5 parts of redispersible rubber powder, 13 parts of polyacrylamide, 1.8 parts of high-strength imitation steel wire fiber, 3.55 parts of anhydrite, 2.3 parts of sulphoaluminate clinker, 1.6 parts of nano calcium carbonate, 30 parts of triterpene saponin air-entraining agent, 50 parts of naphthalenesulfonate formaldehyde condensate, 160 parts of water;

[0034] S2, ultrasonically dispersing the weighed high-strength imitation steel wire fiber in half of the weighed water to obtain a suspension;

[0035] S3. Put the weighed redispersible rubber powder, polyacrylamide, natural coarse aggregate, recycled coarse ag...

Embodiment 2

[0039] A preparation method of waste tire rubber recycled concrete, prepared by the following method:

[0040] S1. Weigh by weight: 400 parts of Portland cement, 600 parts of natural coarse aggregate, 300 parts of recycled coarse aggregate, 379 parts of waste tire rubber powder, 90 parts of fly ash, 550 parts of debris, rice husk ash 18.5 parts, 15 parts of slag powder, 10 parts of redispersible rubber powder, 14 parts of polyacrylamide, 2.5 parts of high-strength imitation steel wire fiber, 4.55 parts of anhydrite, 3 parts of sulphoaluminate clinker, 2 parts of nano calcium carbonate, 80 parts of triterpene saponin air-entraining agent, 80 parts of naphthalenesulfonate formaldehyde condensate, 190 parts of water;

[0041] S2, ultrasonically dispersing the weighed high-strength imitation steel wire fiber in half of the weighed water to obtain a suspension;

[0042] S3. Put the weighed redispersible rubber powder, polyacrylamide, natural coarse aggregate, recycled coarse aggre...

Embodiment 3

[0046] A preparation method of waste tire rubber recycled concrete, prepared by the following method:

[0047] S1. Weigh by weight: 380 parts of Portland cement, 550 parts of natural coarse aggregate, 250 parts of recycled coarse aggregate, 371 parts of waste tire rubber powder, 80 parts of fly ash, 475 parts of debris, rice husk ash 17.5 parts, 14 parts of slag powder, 7.5 parts of redispersible rubber powder, 13.5 parts of polyacrylamide, 2.15 parts of high-strength imitation steel wire fiber, 4.05 parts of anhydrite, 2.65 parts of sulphoaluminate clinker, 1.8 parts of nano calcium carbonate, 55 parts of triterpene saponin air-entraining agent, 65 parts of naphthalenesulfonate formaldehyde condensate, 175 parts of water;

[0048] S2, ultrasonically dispersing the weighed high-strength imitation steel wire fiber in half of the weighed water to obtain a suspension;

[0049] S3. Put the weighed redispersible rubber powder, polyacrylamide, natural coarse aggregate, recycled coa...

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Abstract

The invention discloses waste tire rubber regeneration concrete which is prepared from the following raw materials in parts by weight: 360-400 parts of Portland cement, 500-600 parts of natural crudeaggregate, 200-300 parts of regenerated crude aggregate, 363-379 parts of waste tire rubber powder, 70-90 parts of coal ash, 400-550 parts of chippings, 16.5-18.5 parts of rice hull ash, 13-15 parts of slag powder, 5-10 parts of re-redispersible rubber powder, 13-14 parts of polyacrylamide, 1.8-2.5 parts of a high-strength steel wire imitated fiber, 3.55-4.55 parts of anhydrite, 2.3-3 parts of sulfoaluminate clinker, 1.6-2 parts of nano calcium carbonate, 30-80 parts of a triterpenoid saponins air entraining agent, 50-80 parts of a naphthalenesulfonate formaldehyde condensation compound and 160-190 parts of water. The concrete disclosed by the invention is excellent in bending and impact resistance, and high in overall strength.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a waste tire rubber recycled concrete and a preparation method thereof. Background technique [0002] With the development of the automobile industry, the black pollution formed by waste tires poses an increasing threat to the living environment of human beings. Scrap tires are non-melting or refractory polymer materials with strong heat resistance, mechanical resistance, biological resistance, high elasticity and high toughness. The current research on waste tires is mainly focused on how to develop new equipment to develop new equipment to produce rubber powder, retread tires, and oil refining. The secondary recycling of such waste tires not only requires a lot of manpower and material resources, but also causes serious pollution to the environment. Using these characteristics of waste tires to apply them to civil engineering will not only reduce the pollution of waste tires...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B7/02C04B14/02C04B18/16C04B18/22C04B18/08C04B18/101C04B18/141C04B2103/0057C04B24/2652C04B20/0048C04B22/143C04B14/28C04B24/10C04B24/226
Inventor 李双营
Owner QINGHAI UNIV FOR NATITIES
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