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Reclaimed rubber sound insulation concrete and preparation method

A technology for recycling rubber and concrete, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of difficult digestion of resources, landfill occupation, harmful pollution, etc., achieve high noise reduction coefficient, improve porosity degree, the effect of reducing the elastic modulus

Active Publication Date: 2018-09-04
秦皇岛海三建筑构件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disposal of waste tires is usually disposed of by landfill, incineration, etc. Landfill occupies resources and is difficult to digest; incineration produces a large amount of harmful pollution, and incineration as a heat source also produces a large amount of CO 2 and other harmful gas emissions

Method used

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  • Reclaimed rubber sound insulation concrete and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A recycled rubber sound insulation concrete, including the following components per unit volume mass: cement 360kg / m 3 , composite mineral admixture 70kg / m 3 , recycled rubber aggregate 261kg / m 3 , fine aggregate 710kg / m 3 , coarse aggregate 438kg / m 3 , admixture 2.58kg / m 3 And water 150kg / m 3 .

[0043] Ordinary Portland cement is used as cement, with a strength grade of 42.5MPa, an initial setting time of 180 minutes, and a final setting time of 230 minutes.

[0044] The composite mineral admixture accounts for 20%-25% of the amount of cement, and the composite mineral admixture is a low-maturity active mineral material, which includes fly ash, slag powder and iron tailings fine powder, of which SiO 2 、Al 2 o 3 and Fe 2 o 3 The total mass fraction is ≥70%, the activity index is 91%, the stability meets the requirements, and the 45μm square hole sieve residue is ≤30%.

[0045] The source of raw materials for recycled rubber aggregates is waste automobile tir...

Embodiment 2

[0052] A recycled rubber sound insulation concrete, including the following components per unit volume mass: cement 360kg / m 3 , composite mineral admixture 91kg / m 3 , recycled rubber aggregate 355kg / m 3 , fine aggregate 704kg / m 3 , coarse aggregate 328kg / m 3 , admixture 2.78kg / m 3 And water 160kg / m 3 .

[0053] Ordinary Portland cement is used as cement, with a strength grade of 42.5MPa, an initial setting time of 180 minutes, and a final setting time of 230 minutes.

[0054] The composite mineral admixture accounts for 20%-25% of the cement content, and the composite mineral admixture is a low-maturity active mineral material. The low-maturity active mineral material includes fly ash, slag powder and iron tailings fine powder, and its SiO 2 、Al 2 o 3 and Fe 2 o 3 The total mass fraction is ≥70%, the activity index is 91%, the stability meets the requirements, and the 45μm square hole sieve residue is ≤30%.

[0055] The source of raw materials for recycled rubber ag...

Embodiment 3

[0062] A recycled rubber sound-insulating concrete, including the following components per unit volume mass: cement 315kg / m 3 , composite mineral admixture 73kg / m 3 , recycled rubber aggregate 347kg / m 3 , fine aggregate 660kg / m 3 , coarse aggregate 221kg / m 3 , admixture 2.91kg / m 3 And water 147kg / m 3 .

[0063] Ordinary Portland cement is used as cement, with a strength grade of 42.5MPa, an initial setting time of 180 minutes, and a final setting time of 230 minutes.

[0064] The composite mineral admixture accounts for 20%-25% of the cement content, and the composite mineral admixture is a low-maturity active mineral material. The low-maturity active mineral material includes fly ash, slag powder and iron tailings fine powder, and its SiO 2 、Al 2 o 3 and Fe 2 o 3 The total mass fraction is ≥70%, the activity index is 91%, the stability meets the requirements, and the 45μm square hole sieve residue is ≤30%.

[0065] The source of raw materials for recycled rubber ag...

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Abstract

The invention discloses reclaimed rubber sound insulation concrete. The reclaimed rubber sound insulation concrete comprises the following components by volume weight: 300kg / m<3>-400kg / m<3> of cement,60kg / m<3>-90kg / m<3> of a composite mineral admixture, 254kg / m<3>-355kg / m<3> of reclaimed rubber aggregate, 660kg / m<3>-730kg / m<3> of fine aggregate, 221kg / m<3>-450kg / m<3> of coarse aggregate, 2.4kg / m<3>-4.1kg / m<3> of an admixture, and 135kg / m<3>-160kg / m<3> of water. According to the invention, discarded tires are utilized as rubber regeneration aggregate to prepare a reclaimed rubber material, thereby reducing process steps of screening, deep processing, disposal, and the like, effectively avoiding environmental pollution and resource consumption caused by landfill, incineration and other disposal; in addition, a preparation method for the reclaimed rubber sound insulation concrete, proposed by the invention, is simple and efficient in configuration technology, high in resource regeneration utilization rate, and environmentally friendly, and the prepared reclaimed rubber sound insulation concrete is good in sound absorption and sound insulation performance.

Description

technical field [0001] The invention relates to concrete, more specifically to a recycled rubber sound-insulating concrete and a preparation method thereof, and belongs to the technical field of new green building materials. Background technique [0002] According to statistics, about 1.5 billion rubber tires are scrapped every year in the world. In Europe alone, 300 million car tires were produced in 2014. How to recycle waste tires into resources, reduce them, and use them in a harmless manner is a matter of environmental concern. important social issues of conservation. Disposal of waste tires is usually disposed of by landfill, incineration, etc. Landfill occupies resources and is difficult to digest; incineration produces a large amount of harmful pollution, and incineration as a heat source also produces a large amount of CO 2 and other harmful gas emissions. It is of great significance to explore the application of waste tires in construction and engineering product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/52C04B18/22
CPCC04B28/04C04B2111/52C04B18/08C04B18/141C04B18/12C04B18/22C04B16/06C04B14/48C04B14/068C04B14/02C04B2103/302C04B14/06Y02W30/91
Inventor 王军强
Owner 秦皇岛海三建筑构件制造有限公司
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