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High-durability regenerated concrete doped with waste iron wires and preparation method thereof

A recycled concrete and durability technology, which is applied in the preparation of high-durability recycled concrete and the field of high-durability recycled concrete, can solve the problems of low mechanical properties of recycled concrete, achieve good economic and environmental benefits, reduce costs, and reduce waste cost effect

Inactive Publication Date: 2018-11-13
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-durability recycled concrete mixed with waste iron wire to solve the problem of low mechanical properties of recycled concrete

Method used

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  • High-durability regenerated concrete doped with waste iron wires and preparation method thereof
  • High-durability regenerated concrete doped with waste iron wires and preparation method thereof

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preparation example Construction

[0034] The present invention also provides a method for preparing the above-mentioned high-durability recycled concrete mixed with waste iron wire, comprising the following steps:

[0035] Step 1, prepare materials according to the ratio of the following raw materials,

[0036] Each cubic meter of high-durability recycled concrete consists of the following raw materials:

[0037] 180~200kg of water, 400~450kg of cement, 80~90kg of fly ash, 780~820kg of artificial sand, 1020~1100kg of recycled coarse aggregate, 2.6~5.8kg of water reducing agent, 52~87g of air entraining agent, 2.6~ of waste iron wire 4.35kg;

[0038] Step 2. Pour 50% of water, regenerated coarse aggregate, artificial sand and waste iron wire into the concrete mixer in sequence, stir for 15-20 seconds, and stir evenly to make the surface of the regenerated coarse aggregate moist;

[0039] Step 3. Pour the fly ash into the blender, stir for 15-20 seconds, and stir evenly;

[0040] Step 4, add cement, stir for ...

Embodiment 1

[0057]Crushing the waste concrete into recycled coarse aggregate, ensuring that the particle size of the waste coarse aggregate is 5-20mm; at the same time collecting a large number of different types of waste iron wire, and cutting it to a length of 2cm;

[0058] The high-durability recycled concrete mixed with waste iron wire comprises the following steps:

[0059] Step 1, prepare materials according to the ratio of the following raw materials,

[0060] Each cubic meter of high-durability recycled concrete consists of the following raw materials:

[0061] 190kg of water, 420kg of cement, 85kg of fly ash, 800kg of artificial sand, 1050kg of recycled coarse aggregate, 4kg of water reducing agent, 60g of air-entraining agent, and 3.5kg of waste iron wire;

[0062] Step 2. Pour 50% water, recycled coarse aggregate, artificial sand and waste iron wire into the concrete mixer in sequence, and stir for 15-20 seconds to make the surface of the recycled coarse aggregate wet;

[006...

Embodiment 2

[0068] Crushing the waste concrete into recycled coarse aggregate, ensuring that the particle size of the waste coarse aggregate is 5-20mm; at the same time collecting a large number of different types of waste iron wire, and cutting it to a length of 5cm;

[0069] The high-durability recycled concrete mixed with waste iron wire comprises the following steps:

[0070] Step 1, prepare materials according to the ratio of the following raw materials,

[0071] Each cubic meter of high-durability recycled concrete consists of the following raw materials:

[0072] 190kg of water, 420kg of cement, 85kg of fly ash, 800kg of artificial sand, 1050kg of recycled coarse aggregate, 4kg of water reducing agent, 60g of air-entraining agent, and 3.5kg of waste iron wire;

[0073] Step 2. Pour 50% water, recycled coarse aggregate, artificial sand and waste iron wire into the concrete mixer in sequence, and stir for 15-20 seconds to make the surface of the recycled coarse aggregate wet;

[00...

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Abstract

The invention discloses high-durability regenerated concrete doped with waste iron wires. Every cubic meter of concrete is prepared from the following raw materials: 180 to 200 kg of water, 400 to 450kg of cement, 80 to 90 kg of coal ash, 780 to 820 kg of artificial sand, 1020 to 1100 kg of regenerated coarse aggregate, 2.6 to 5.8 kg of water reducing agent, 52 to 87 g of air entraining agent and2.6 to 4.35 kg of waste iron wires. A preparation method of the concrete comprises the following steps: pouring 50 percent of water, regenerated coarse aggregate, artificial sand and waste iron wiresinto a concrete mixer in sequence, stirring uniformly, pouring the coal ash into the mixer, adding the cement, dissolving the air entraining agent and the water reducing agent in the remaining water,pouring the mixture into the mixer and mixing; unloading the newly-mixed concrete on a steel plate, and manually stirring with a shovel to obtain the high-durability regenerated concrete. By adoptingthe high-durability regenerated concrete doped with the waste iron wires, the problem of lower mechanical performance of the regenerated concrete is solved.

Description

technical field [0001] The invention belongs to the technical field of recycled concrete preparation, and in particular relates to a high-durability recycled concrete mixed with waste and old iron wires; the invention also relates to a preparation method of the high-durability recycled concrete mixed with waste and old iron wires. Background technique [0002] With the rapid development of the construction industry, the production of natural sand and gravel aggregates requires the excavation of a large number of mountains, the damage to the environment cannot be ignored, and the current natural sand and gravel resources are close to exhaustion. At the same time, a large number of demolition projects and natural disasters such as earthquakes in my country's urbanization have produced a large amount of construction waste. There are many types of construction waste and complex components, but the proportion of waste concrete is the largest, about 41%. At present, most of the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/20C04B111/76
CPCC04B28/00C04B2111/00017C04B2111/20C04B2111/76C04B2201/50C04B18/08C04B14/06C04B18/167C04B2103/302C04B2103/304C04B14/48
Inventor 李阳王瑞骏荆慧斌赵云许萍
Owner XIAN UNIV OF TECH
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