High-strength recycled concrete

A recycled concrete, high-strength technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems that the hardness and performance of recycled concrete are difficult to control, it is difficult to put into practical application, and the performance of concrete is underestimated. Low processing cost, good economic and social benefits, and the effect of solving recycling problems

Inactive Publication Date: 2017-05-24
郭琳
1 Cites 3 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, it is difficult to control the hardness and other properties of the recycled concrete produced by this method, which leads to the limitation of its application range. In actual use, the performance of the final produced concrete has to be underestimated, so as to ensure that the use of the concrete will not cause safety problems. , which also r...
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Abstract

The invention discloses a high-strength recycled concrete. The high-strength recycled concrete is composed of, by weight, 200 to 330 parts of cement, 80 to 90 parts of ore powder, 640 to 950 parts of recycled sand, 350 to 400 parts of recycled aggregate, 70 to 80 parts of a gel material, 5 to 12 parts of a pumping aid, and 170 to 200 parts of water. Most of the above raw materials, except recycled aggregate, are recycled, so that environment protection and resource recycling are realized further. No toxic or harmful material is added; no harm is caused on human body or the environment; the strength of the obtained high-strength recycled concrete is capable of reaching C50 standard; the performance of the high-strength recycled concrete is stable; stable control of the performance of the high-strength recycled concrete can be realized via controlling the amount of cement, recycled sand, and recycled aggregate; application value is high; a preparation method is low in cost, and is capable of satisfying economic and environment protection requirements; excellent economic benefit and social benefit are achieved.

Application Domain

Technology Topic

Examples

  • Experimental program(2)

Example Embodiment

[0016] Example 1.
[0017] The high-strength recycled concrete mentioned in this example consists of the following raw materials in weight fraction:
[0018] 220 parts of cement, 80 parts of mineral powder, 640 parts of recycled sand, 360 parts of recycled aggregate, 75 parts of gel material, 8 parts of pumping agent, 200 parts of water.
[0019] The preparation method is:
[0020] (1) Prepare various raw materials according to the corresponding proportions by weight;
[0021] (2) Evenly mix cement, mineral powder, recycled sand, and recycled aggregates and add them to the mixing device;
[0022] (3) Add gel material, pumping agent and water to the mixing device, and then mix evenly to obtain recycled concrete.
[0023] The strength of the produced recycled concrete can reach C45.

Example Embodiment

[0024] Example 2.
[0025] The high-strength recycled concrete mentioned in this example consists of the following raw materials in weight fraction:
[0026] 300 parts of cement, 80 parts of mineral powder, 800 parts of recycled sand, 380 parts of recycled aggregate, 75 parts of gel material, 8 parts of pumping agent, 200 parts of water.
[0027] The preparation method is:
[0028] (1) Prepare various raw materials according to the corresponding proportions by weight;
[0029] (2) Evenly mix cement, mineral powder, recycled sand, and recycled aggregates and add them to the mixing device;
[0030] (3) Add gel material, pumping agent and water to the mixing device, and then mix evenly to obtain recycled concrete.
[0031] The strength of the produced recycled concrete can reach C50.
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Description & Claims & Application Information

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