Basalt fiber recycled insulation concrete and preparation method thereof

A technology of basalt fiber and thermal insulation concrete, which is applied in the field of building materials, can solve the problems of poor performance and low utilization rate of recycled concrete, and achieve the effects of improving durability, delaying concrete performance degradation, and good thermal insulation effect

Inactive Publication Date: 2017-06-13
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcomings of existing recycled concrete such as low utilization rate and poor performance, the present invent...

Method used

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  • Basalt fiber recycled insulation concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A basalt fiber recycled thermal insulation concrete, comprising the following raw materials in parts by weight: 605 parts of stones, 605 parts of recycled coarse aggregate, 484 parts of cement, 520 parts of sand, 3 parts of basalt fiber, 150 parts of vitrified microbeads, and external admixtures 5 parts, 2 parts of admixture, appropriate amount of water. Wherein, the fineness modulus of the sand is 2.0-2.4.

[0037] The manufacture method of the basalt fiber recycled thermal insulation concrete comprises the following steps:

[0038] (1) Take a quarter (121 parts) of the above-mentioned weight of cement and an appropriate amount of water (48.4 parts) to prepare cement slurry;

[0039] (2), the basalt fiber of the counterweight is evenly mixed into the cement paste prepared in step (1);

[0040] (3) Add the weighted vitrified microbeads into the mixer and add an appropriate amount of water, and stir for 30s;

[0041] (4) Evenly add the cement slurry evenly wrapped wit...

Embodiment 2

[0045] A basalt fiber recycled thermal insulation concrete, comprising the following raw materials in parts by weight: 363 parts of stones, 848 parts of recycled coarse aggregate, 484 parts of cement, 520 parts of sand, 1 part of basalt fiber, 150 parts of vitrified microbeads, and external admixtures 5 parts, 2 parts of admixture, appropriate amount of water. Wherein, the fineness modulus of the sand is 2.0-2.4.

[0046] The manufacture method of the basalt fiber recycled thermal insulation concrete comprises the following steps:

[0047] (1) Take 1 / 4 of the above-mentioned weight of cement and appropriate amount of water to prepare cement paste;

[0048] (2), the basalt fiber of the counterweight is evenly mixed into the cement paste prepared in step (1);

[0049] (3) Add the weighted vitrified microbeads into the mixer and add an appropriate amount of water, and stir for 30s;

[0050] (4) Add the cement slurry evenly wrapped with basalt fibers prepared in step (2) into t...

Embodiment 3

[0054] A basalt fiber recycled thermal insulation concrete, comprising the following raw materials in parts by weight: 1211 parts of recycled coarse aggregate, 484 parts of cement, 520 parts of sand, 6 parts of basalt fiber, 150 parts of vitrified microbeads, 5 parts of external admixture, and 2 parts of medicine, appropriate amount of water. Wherein, the fineness modulus of the sand is 2.0-2.4.

[0055] The manufacture method of the basalt fiber recycled thermal insulation concrete comprises the following steps:

[0056] (1) Take 1 / 4 of the above-mentioned weight of cement and appropriate amount of water to prepare cement paste;

[0057] (2), the basalt fiber of the counterweight is evenly mixed into the cement paste prepared in step (1);

[0058] (3) Add the weighted vitrified microbeads into the mixer and add an appropriate amount of water, and stir for 30s;

[0059] (4) Add the cement slurry evenly wrapped with basalt fibers prepared in step (2) into the concrete mixer,...

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Abstract

The invention discloses basalt fiber recycled insulation concrete, made from, by weight, 1100-1300 parts of coarse aggregate, 300-500 parts of cement, 450-650 parts of sand, 0.5-8 parts of basalt fiber, 140-180 parts of vitrified micro bubbles, 4-10 parts of an admixture, 3-7 parts of an additive, and suitable water, wherein the sand has fineness modulus of 2.0-2.4. Basalt fiber and cement-based aggregate have strong adhesion in the concrete, concrete cracking can be inhibited, minor cracks caused by dry shrinkage of the concrete are decreased effectively, the toughness of the recycled concrete is improved, and the brittleness of the concrete can be overcome ideally.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a basalt fiber regenerated thermal insulation concrete and a preparation method thereof. Background technique [0002] Since the late 1990s, my country's construction industry has entered a stage of development by leaps and bounds. High-rise buildings have sprung up, and at the same time, old buildings and structures have been demolished continuously. Concrete has been the main material of construction projects for a long time. Due to the irreplaceability of concrete materials at this stage, a large amount of concrete materials are used in projects, resulting in a large amount of concrete material waste. The world's treatment of construction waste is still the traditional open-air stacking or landfill, which causes damage to the natural environment and human living environment to varying degrees. Therefore, the disposal of construction waste has become an urgent probl...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B14/22C04B14/38C04B18/16
CPCC04B14/22C04B14/4643C04B18/167C04B28/04C04B14/06C04B18/08C04B18/146C04B2103/302C04B2103/22Y02W30/91
Inventor 刘元珍郝潞岑段鹏飞王文婧
Owner TAIYUAN UNIV OF TECH
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