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Experimental method for preparing rubber particle concrete

A technology of rubber granules and experimental methods, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., to achieve the effect of improving integrity and stability, and improving physical and mechanical properties

Inactive Publication Date: 2015-07-22
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the compressive strength and compressibility of rubber particle concrete under different rubber particle content are studied to provide a strong basis for the solution of the support problem of large deformation of roadway surrounding rock

Method used

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  • Experimental method for preparing rubber particle concrete
  • Experimental method for preparing rubber particle concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Taking the preparation of 20 rubber particle concrete specimens with a rubber particle content of 0%-10% (mass ratio) as an example, first use the balance, electronic scale, measuring cylinder and other experimental instruments to weigh the materials required for the experiment, and use the following experiment Method for preparing rubber particle concrete:

[0042] (1) Stir the weighed rubber particles and binder for 2 minutes.

[0043] (2) Stir the weighed cement and sand in the mixer for 3 minutes, pour the rubber particles evenly mixed with the binder into the well-stirred cement and sand and stir together for 2 minutes.

[0044] (3) Add water measured with a graduated cylinder into the mixer, and stir for 3 minutes; add water reducing agent into the mixer and stir for 3 minutes.

[0045] (4) Put the mixed rubber particle concrete into a standard mold that has been evenly coated with a layer of mechanical lubricating oil on the inner wall. After the mold is full, p...

Embodiment 2

[0049] Take the preparation of 20 rubber particle concrete specimens with a rubber particle content of 10%-20% (mass ratio) as an example, use the balance, electronic scale, measuring cylinder and other experimental instruments to weigh the materials required for the experiment, and adopt the following experimental method Preparation of rubber particle concrete:

[0050] (1) Stir the weighed rubber particles and binder for 2 minutes.

[0051](2) Stir the weighed cement and sand in the mixer for 3 minutes, pour the rubber particles evenly mixed with the binder into the well-stirred cement and sand and stir together for 2 minutes.

[0052] (3) Add water measured with a graduated cylinder into the mixer and stir for 3 minutes; add water reducing agent into the mixer and stir for 5 minutes.

[0053] (4) Put the mixed rubber particle concrete into a standard mold that has been evenly coated with a layer of mechanical lubricating oil on the inner wall. After the mold is full, place...

Embodiment 3

[0057] Take the preparation of 20 rubber particle concrete specimens with a rubber particle content of 20%-30% (mass ratio) as an example, use the balance, electronic scale, measuring cylinder and other experimental instruments to weigh the materials required for the experiment, and adopt the following experimental method Preparation of rubber particle concrete:

[0058] (1) Stir the weighed rubber particles and binder for 5 minutes.

[0059] (2) Stir the weighed cement and sand in the mixer for 5 minutes, pour the rubber particles evenly mixed with the binder into the well-stirred cement and sand and stir together for 3 minutes.

[0060] (3) Add water measured with a graduated cylinder into the mixer and stir for 3 minutes; add water reducing agent into the mixer and stir for 5 minutes.

[0061] (4) Put the mixed rubber particle concrete into the standard mold that has evenly applied a layer of mechanical lubricating oil on the inner wall. During the loading process, it is d...

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Abstract

The invention discloses an experimental method for preparing rubber particle concrete.The method comprises the steps of pretreating rubber particles, adding an adhesive agent for mixing, putting cement and sand at a matching ratio into a mixer for an experiment for uniform mixing, adding the rubber particles into the mixer for uniform mixing, adding water into the mixer for mixing, adding a water reducer for mixing, putting the rubber particle concrete into a standard mold for curing, curing for 28 days after secondary treatment of the rubber particle concrete in the mold after curing for a certain time period, preparing a rubber particle concrete test piece, removing the mold, and carrying out a physical mechanic characteristic experiment on the rubber particle concrete. The experimental method improves rubber particle and concrete combining integrity and stability. At the same time, the compressive strength and compressibility of the rubber particle concrete under different rubber particle mixing amounts are researched, and a powerful basis is provided for solving the problem of a large deformation surrounding rock support of a roadway.

Description

technical field [0001] The invention relates to a preparation method of a support material in mine engineering and tunnel engineering, in particular to an experimental method for preparing rubber particle concrete. Background technique [0002] With the continuous increase of coal mining and tunnel construction depth in my country, the surrounding rock conditions of the roadway have become complex and changeable after the excavation. Large deformation, roof caving, bottom heaving, flaking and even rockburst occurred one after another. At the same time, a large number of roadways are in the soft rock environment. Under the environment, the expansion of the surrounding rock accelerates, and with the change of time, the pressure increases sharply and the deformation increases, which seriously damages the roadway. This requires that the supporting material and supporting structure have certain flexibility and yielding performance. Under the premise of ensuring a certain supportin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/22
CPCY02W30/91
Inventor 宋伟杰乔卫国林登阁宋雪梅
Owner SHANDONG UNIV OF SCI & TECH
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