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Renewable concrete and production process thereof

A recycled concrete and production process technology, applied in the field of concrete manufacturing, can solve the problems of renewable concrete such as easy cracking, and achieve the effect of providing elastic recovery ability, high elastic recovery rate, and improving structural strength

Active Publication Date: 2021-01-22
河南兴达商砼有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that renewable concrete is easy to crack, the purpose of this application is to provide a renewable concrete and its production process, which has the advantage of anti-cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]The renewable concrete of this embodiment is made of the following raw materials in parts by weight: 500 parts of recycled aggregate, 500 parts of sand, 350 parts of cement, 0.2 part of viscose fiber, 0.15 part of polyester fiber, 0.1 part of polyurethane fiber, water reducing 5 parts of agent and 150 parts of water; wherein, the viscose fiber is high wet modulus viscose fiber, the denier of high wet modulus viscose fiber is 120D, the length is 10mm, the dry strength is 3Cn / dtex, and the elongation at break is 11%, the degree of polymerization is 500, the length of polyester fiber is 20mm, the dry strength is 4Cn / dtex; the length of polyurethane fiber is 20mm, the denier is 20D, the elongation at break is 400%, and the mass fraction of polyurethane fiber is 0.2% Soak in sodium hydroxide solution for 10 minutes to clean and desizing.

[0042] The production technology of the renewable concrete of the present embodiment comprises the following steps:

[0043] Step 1: Degr...

Embodiment 2

[0048] The renewable concrete of this embodiment is made of the following raw materials in parts by weight: 700 parts of recycled aggregate, 300 parts of sand, 400 parts of cement, 0.5 part of viscose fiber, 0.3 part of polyester fiber, 0.15 part of polyurethane fiber, water reducing 10 parts of agent and 180 parts of water; among them, the viscose fiber is high wet modulus viscose fiber, the denier of high wet modulus viscose fiber is 180D, the length is 20mm, the dry strength is 3.5Cn / dtex, and the elongation at break 13%, the degree of polymerization is 550, the length of polyester fiber is 40mm, and the dry strength is 5Cn / dtex; the length of polyurethane fiber is 35mm, the denier is 30D, the elongation at break is 450%, and the mass fraction of polyurethane fiber is 0.35 % sodium hydroxide solution for 10 minutes to clean and desizing.

[0049] The production technology of the renewable concrete of the present embodiment comprises the following steps:

[0050] Step 1: De...

Embodiment 3

[0055] The renewable concrete of this embodiment is made of the following raw materials in parts by weight: 900 parts of recycled aggregate, 500 parts of sand, 450 parts of cement, 0.6 part of viscose fiber, 0.5 part of polyester fiber, 0.2 part of polyurethane fiber, water reducing 8 parts of agent, 200 parts of water; Wherein, viscose fiber is high wet modulus viscose fiber, high wet modulus viscose fiber denier is 180D, length is 40mm, dry strength is 3.8Cn / dtex, elongation at break 14%, the degree of polymerization is 600, the length of polyester fiber is 50mm, and the dry strength is 5.5Cn / dtex; the length of polyurethane fiber is 40mm, the denier is 35D, the elongation at break is 500%, and the mass fraction of polyurethane fiber is Soak in 0.5% sodium hydroxide solution for 10 minutes to clean and desizing.

[0056] The production technology of the renewable concrete of the present embodiment comprises the following steps:

[0057] Step 1: Degrading the viscose fiber b...

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Abstract

The invention relates to the technical field of concrete manufacturing, and particularly discloses renewable concrete, which is mainly prepared from the following raw materials in parts by weight: 500-1000 parts of recycled aggregate, 200-500 parts of sand, 350-450 parts of cement, 0.2-0.8 part of viscose fibers, 0.1-0.5 part of polyester fibers, 0.1-0.3 part of polyurethane fibers, 5-20 parts ofa water reducing agent and 150-200 parts of water. The production process of the renewable concrete comprises the following steps: step 1, uniformly mixing recycled aggregate, sand, cement and water to prepare slurry; and 2, uniformly mixing viscose fibers, polyester fibers, polyurethane fibers, a water reducing agent and the slurry obtained in the step 1. The renewable concrete has the advantagesof high strength, cracking resistance and bending resistance.

Description

technical field [0001] This application relates to the field of concrete manufacturing technology, more specifically, it relates to a renewable concrete and its production process. Background technique [0002] With the continuous development of society, my country's urban construction is developing rapidly. In urban construction, concrete is widely used in the construction industry due to its advantages of high strength, high durability and low price. However, a large amount of waste concrete is also produced during urban construction. Construction waste, these large quantities of construction waste greatly endanger our ecological environment. In addition, the production of concrete also requires a large amount of natural resources such as sand and gravel. Therefore, it is particularly important to crush waste concrete as recycled aggregates to realize the recycling of concrete. important. [0003] Due to the difference in performance between the recycled aggregate formed by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B16/06C04B111/34
CPCC04B28/04C04B16/0683C04B16/0675C04B16/06C04B2201/50C04B2111/343C04B18/16C04B14/068C04B2103/302
Inventor 王俊峰鲁海龙吴广胜
Owner 河南兴达商砼有限公司
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