Full-light high-strength concrete for fabricated prefabricated part and preparation method thereof

A high-strength concrete, prefabricated technology, applied in the field of building materials, can solve the problems of large shrinkage and creep, strong water absorption, low strength, etc., and achieve the effects of reducing bulk density, improving crack resistance, and high strength

Inactive Publication Date: 2020-03-27
汝州市东江建筑工业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of existing concrete such as large voids, strong water absorption, large shrinkage and creep, and low strength due to lightweight aggregates, the present invention provides a fully lightweight high-strength concrete for assembled prefabricated components to achieve uniform distribution. It has light weight, high strength, good self-insulation, good resistance to tensile deformation, light specific gravity, makes all-light concrete tough, and effectively improves various properties of concrete, and its various properties have been significantly improved. , greatly reducing the concrete bulk density, while ensuring the compressive strength, the preparation process is simple, environmentally friendly, and easy to construct

Method used

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  • Full-light high-strength concrete for fabricated prefabricated part and preparation method thereof

Examples

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Effect test

example 1

[0027] An all-light high-strength concrete for prefabricated components, weighed according to the following parts by weight: 45 parts of cement, 55 parts of ceramsite, 38 parts of pottery sand, 15.5 parts of fly ash, 9 parts of steel fiber, and 22 parts of high-performance fiber , 1.0 parts of water reducing agent.

[0028] The ceramsite is continuously graded clay ceramsite with a particle size of 5-25mm, the cylinder compressive strength of the ceramsite is greater than 3.5MPa, and the bulk density is 550-800 kg / m 3 .

[0029] The pottery sand is continuously graded clay pottery sand whose particle size is less than 5 mm, the cylinder compressive strength of the pottery sand is greater than 5.0 MPa, and the bulk density is 800-900 kg / m 3 .

[0030] The high-performance fibers are basalt fibers or polypropylene fibers.

[0031] The described water reducer adopts polycarboxylate high-efficiency water reducer.

[0032] The preparation method of all-light high-strength concr...

example 2

[0040] An all-light high-strength concrete for prefabricated components, weighed according to the following parts by weight: 50 parts of cement, 50 parts of ceramsite, 45 parts of pottery sand, 16 parts of fly ash, 20 parts of steel fiber, and 30 parts of high-performance fiber , 1.2 parts of water reducing agent.

[0041] The ceramsite is continuously graded clay ceramsite with a particle size of 5-25mm, the cylinder compressive strength of the ceramsite is greater than 3.5MPa, and the bulk density is 550-800 kg / m 3 .

[0042] The pottery sand is continuously graded clay pottery sand whose particle size is less than 5 mm, the cylinder compressive strength of the pottery sand is greater than 5.0 MPa, and the bulk density is 800-900 kg / m 3 .

[0043] The high-performance fibers are basalt fibers or polypropylene fibers.

[0044] The described water reducer adopts polycarboxylate high-efficiency water reducer.

[0045] The preparation method of all-light high-strength concre...

example 3

[0053] An all-light high-strength concrete for prefabricated components, weighed according to the following parts by weight: 55 parts of cement, 55 parts of ceramsite, 55 parts of pottery sand, 17.5 parts of fly ash, 35 parts of steel fiber, and 44 parts of high-performance fiber , 1.5 parts of water reducing agent.

[0054] The ceramsite is continuously graded clay ceramsite with a particle size of 5-25mm, the cylinder compressive strength of the ceramsite is greater than 3.5MPa, and the bulk density is 550-800 kg / m 3 .

[0055] The pottery sand is continuously graded clay pottery sand whose particle size is less than 5 mm, the cylinder compressive strength of the pottery sand is greater than 5.0 MPa, and the bulk density is 800-900 kg / m 3 .

[0056] The high-performance fibers are basalt fibers or polypropylene fibers.

[0057] The described water reducer adopts polycarboxylate high-efficiency water reducer.

[0058] The preparation method of all-light high-strength concre...

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Abstract

The invention relates to full-light high-strength concrete for a fabricated prefabricated part. The full-light high-strength concrete comprises the following components in parts by weight: 45-55 partsof cement, 45-55 parts of ceramsite, 38-55 parts of pottery sand, 15.5-17.5 parts of fly ash, 9-35 parts of steel fibers, 22-44 parts of high-performance fibers and 1.0-1.5 parts of a water reducingagent. Compared with the prior art, the prepared concrete is uniform in distribution; the weight is light, the strength is high, and the self-heat-preservation performance is good; the concrete has good tensile deformation resistance and light specific gravity, so that the full-light concrete has toughness, various properties of the concrete are effectively improved, the volume weight of the concrete is greatly reduced, the compressive strength is ensured, the full-light high-strength concrete is simple in preparation process, environment-friendly and easy to construct, and the concrete has good popularization value.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an all-light high-strength concrete for prefabricated components and a preparation method thereof. Background technique [0002] Since the country vigorously developed green buildings, the field of prefabricated buildings has ushered in rapid development. Compared with the traditional residential building model, the prefabricated house has the advantages of saving electricity, water, materials, land, construction waste and labor, and has high efficiency, short cycle, excellent quality, high safety factor, and low production cost. It is a new type of industry that is low-carbon, green, environmentally friendly, and energy-saving. The high-rise and long-span development direction of modern buildings puts forward higher requirements for the lightweight and high-strength performance of prefabricated concrete structures. [0003] At present, the all-light aggregate concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B111/40
CPCC04B28/02C04B2111/40C04B2201/50C04B18/027C04B18/08C04B14/48C04B14/46C04B16/0633C04B2103/302
Inventor 张冠军郭长江岳建中王辉郭玉拴李云周赵国青牛亚卫陈丽飞杨立凯李凯路帅兵陈延伟李少杰
Owner 汝州市东江建筑工业科技有限公司
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