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High-strength regenerated concrete doped with waste cable and preparation method thereof

A technology of recycled concrete and waste cables, which is applied in the preparation of high-strength recycled concrete and the field of high-strength recycled concrete preparation, can solve problems affecting the mechanical properties and durability of concrete, achieve good recycling, reduce incineration and landfill treatment, and improve The effect of durability performance

Active Publication Date: 2018-11-06
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, the addition of recycled coarse aggregate will affect the mechanical properties and durability of concrete

Method used

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  • High-strength regenerated concrete doped with waste cable and preparation method thereof

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preparation example Construction

[0038] The present invention also provides a preparation method for the above-mentioned high-strength recycled concrete mixed with waste cables, comprising the following steps:

[0039] Step 1, prepare materials according to the ratio of the following raw materials,

[0040] Each cubic meter of high-strength recycled concrete consists of the following raw materials:

[0041] Water 168~180kg, cement 300~330kg, ultrafine mineral powder 63~70kg, fly ash 63~70kg, fine aggregate 860~900kg, recycled coarse aggregate 560~600kg, natural coarse aggregate 560~600kg, water reduction Agent 4.3~9.4kg, air-entraining agent 85.2~141g, waste cable 4.3~7.1kg;

[0042] Step 2. Pour 50% of the total amount of tap water, recycled coarse aggregate, natural coarse aggregate, fine aggregate and waste cables into the concrete mixer in sequence, and stir for 15s to 20s to make the surface of the recycled coarse aggregate wet;

[0043] Step 3. Pour ultrafine mineral powder and fly ash into the mixer,...

Embodiment 1

[0051]Crushing the waste concrete into recycled coarse aggregate, ensuring that the particle size of the recycled coarse aggregate is 5-20mm; screening the recycled coarse aggregate to remove the regenerated ones with many edges and corners, strips and triangles Coarse aggregate, try to ensure that the recycled coarse aggregate is approximately circular. Cut the waste cable to a length of 2cm.

[0052] Step 1, prepare materials according to the ratio of the following raw materials,

[0053] Each cubic meter of high-strength recycled concrete consists of the following raw materials:

[0054] 170kg of water, 320kg of cement, 65kg of superfine mineral powder, 65kg of fly ash, 880kg of fine aggregate, 580kg of recycled coarse aggregate, 580kg of natural coarse aggregate, 5kg of water reducing agent, 100g of air-entraining agent, and 5kg of waste cables;

[0055] Step 2. Pour 50% of the total amount of tap water, recycled coarse aggregate, natural coarse aggregate, fine aggregate...

Embodiment 2

[0061] Crushing the waste concrete into recycled coarse aggregate, ensuring that the particle size of the recycled coarse aggregate is 5-20mm; screening the recycled coarse aggregate to remove the regenerated ones with many edges and corners, strips and triangles Coarse aggregate, try to ensure that the recycled coarse aggregate is approximately circular. Cut the waste cable to a length of 5cm.

[0062] Step 1, prepare materials according to the ratio of the following raw materials,

[0063] Each cubic meter of high-strength recycled concrete consists of the following raw materials:

[0064] 170kg of water, 320kg of cement, 65kg of superfine mineral powder, 65kg of fly ash, 880kg of fine aggregate, 580kg of recycled coarse aggregate, 580kg of natural coarse aggregate, 5kg of water reducing agent, 100g of air-entraining agent, and 5kg of waste cables;

[0065] Step 2. Pour 50% of the total amount of tap water, recycled coarse aggregate, natural coarse aggregate, river sand an...

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Abstract

The invention discloses high-strength regenerated concrete doped with a waste cable. Every cubic meter of regenerated concrete is prepared from the following raw materials by weight: 168-180 kg of water, 300kg-330kg of cement, 63-70kg of ultrafine mineral powder, 63-70kg of coal ash, 860-900kg of fine aggregates, 560-600kg of regenerated coarse aggregates, 560-600 kg of natural coarse aggregates,4.3-9.4 kg of water reducer, 85.2-141g of air entraining agent and 4.3-7.1kg of waste cable. A preparation method comprises the following steps: sequentially pouring 50% of the total tap water, the regenerated coarse aggregates, the natural coarse aggregates, the fine aggregates and the waste cable into a concrete stirrer; pouring the ultrafine mineral powder and the coal ash into the stirrer; adding the cement; dissolving the air entraining agent and the water reducer into the rest of the 50% of tap water, and pouring into the stirrer; and unloading the stirred novel concrete onto a steel plate, and stirring to obtain the regenerated concrete.

Description

technical field [0001] The invention belongs to the technical field of preparation of high-strength recycled concrete, and in particular relates to a high-strength recycled concrete mixed with waste cables; the invention also relates to a preparation method of the high-strength recycled concrete mixed with waste cables. Background technique [0002] With the acceleration of urbanization in my country, the discharge of solid waste such as construction waste is gradually increasing. However, most of the construction waste is transported to the suburbs or the periphery of the city without any treatment, and is simply buried and piled up in the open air. Such a treatment method not only occupies a large amount of land resources, but also pollutes the water environment and air around the construction waste dumping area. In addition, with the increasing population of our country, the demand for concrete in the construction industry has greatly increased, so the demand for natural...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/76
CPCC04B28/04C04B2111/76C04B2201/50C04B18/08C04B18/12C04B14/06C04B18/16C04B14/02C04B2103/302C04B2103/304C04B16/06
Inventor 李阳王瑞骏曹阳赵云许萍
Owner XIAN UNIV OF TECH
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