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Spontaneous-combustion gangue concrete sandwich floor

A self-combustible coal and concrete technology, applied to floors, building components, buildings, etc., can solve the problems of low installation efficiency, poor waterproof performance, self-heavy, etc., and achieve the effect of quick installation, light weight and low cost

Active Publication Date: 2017-12-01
略奇(北京)科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prefabricated floors in prefabricated buildings mainly have disadvantages such as high cost, heavy weight, low installation efficiency, and poor waterproof performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The invention provides a spontaneously combusted coal gangue concrete interlayer floor slab, the composition of ingredients is as follows according to the weight of the materials: cement: 8%; fly ash: 1.5%; coarse aggregate: 35% fine aggregate: 35%; water : 7%; composite additives: 1.0%. Composite additives, including water reducer, early strength agent, air entraining agent, retarder and waterproofing agent. The preparation method of the spontaneously combusted coal gangue concrete sandwich floor is as follows:

[0021] (1) Prepare raw materials according to the formula, including: cement, fly ash, natural coal gangue and compound additives;

[0022] (2) Sorting: Manual sorting is used to remove impurities (twigs, weeds, sulfide, etc.) in spontaneously combusted coal gangue;

[0023] (3) Crushing: use a hammer crusher to crush and sort spontaneously combusted coal gangue, with a maximum particle size of ≤15mm;

[0024] (4) Screening: use a 4mm×4mm square hole screen...

Embodiment 2

[0031] The present invention provides a kind of self-combustible coal gangue concrete interlayer floor slab. The composition of ingredients is as follows according to the weight of materials: cement: 15%; fly ash: 0.8%; coarse aggregate: 50%; fine aggregate: 25%; Water: 4%; compound additives: 0.2%. Composite additives, including water reducer, early strength agent, air entraining agent, retarder and waterproofing agent. The preparation method of the spontaneously combusted coal gangue concrete sandwich floor is as follows:

[0032] (1) Prepare raw materials according to the formula, including: cement, fly ash, natural coal gangue and compound additives;

[0033] (2) Sorting: Manual sorting is used to remove impurities (twigs, weeds, sulfide, etc.) in spontaneously combusted coal gangue;

[0034] (3) Crushing: use a hammer crusher to crush and sort spontaneously combusted coal gangue, with a maximum particle size of ≤15mm;

[0035] (4) Screening: use a 4mm×4mm square hole s...

Embodiment 3

[0042] The invention provides a kind of self-combustible coal gangue concrete interlayer floor. The composition of ingredients is as follows according to the weight of materials: cement 11%; fly ash: 1.1%; coarse aggregate: 42%; fine aggregate: 30%; water : 10%; composite additives: 0.6%. Composite additives, including water reducer, early strength agent, air entraining agent, retarder and waterproofing agent. The preparation method of the spontaneously combusted coal gangue concrete sandwich floor is as follows:

[0043] (1) Prepare raw materials according to the formula, including: cement, fly ash, natural coal gangue and compound additives;

[0044] (2) Sorting: Manual sorting is used to remove impurities (twigs, weeds, sulfide, etc.) in spontaneously combusted coal gangue;

[0045] (3) Crushing: use a hammer crusher to crush and sort spontaneously combusted coal gangue, with a maximum particle size of ≤15mm;

[0046] (4) Screening: Use a 4mm×4mm square hole screen to sc...

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Abstract

The invention provides a spontaneous-combustion gangue concrete sandwich floor. The spontaneous-combustion gangue concrete sandwich floor comprises, by weight percentage, 8-15% of cement, 0.8-1.5% of fly ash, 35-50% of coarse aggregate, 25-35% of fine aggregate, 7-14% of water and 0.2-1.0% of composite additive. A preparation method of the spontaneous-combustion gangue concrete sandwich floor includes: preparing materials, sorting, crushing, screening, erecting formwork, stirring, pouring, maintaining and removing the formwork. The spontaneous-combustion gangue concrete sandwich floor has the advantages that gangue recycling is achieved; the assembling type building prefabricated floor is low in manufacturing cost, low in self-weight, convenient to mount and wide in application range; the gangue prefabricated floor meets the related requirements of energy-saving and green buildings, is low in manufacturing cost, flexible to assemble, fast to mount and simple to maintain, integrates functions of lightweight, load bearing, thermal insulation, waterproofing and seismic resistance and has high competiveness in similar products, and the service life of the floor is identical with the same of a structure.

Description

technical field [0001] The invention relates to a sandwich floor in the construction industry, in particular to a spontaneously combusted coal gangue concrete sandwich floor. Background technique [0002] At present, the country is vigorously promoting the development of prefabricated buildings, among which Taiyuan City and Datong City are the first batch of pilot cities in Shanxi Province. Prefabricated floor slabs in prefabricated buildings mainly have disadvantages such as high cost, heavy weight, low installation efficiency, and poor waterproof performance. Therefore, it is very urgent to develop new prefabricated floor slabs. [0003] As a major coal-producing province in the country, Shanxi produces a large amount of waste—coal gangue—with a cumulative stock of more than 1 billion tons during the mining of coal resources. Coal gangue is piled up for a long time. In addition to occupying a large area of ​​land, the escape or leaching of sulfide will pollute the atmosp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00E04B5/02C04B111/27
CPCC04B28/00C04B2111/00017C04B2111/27E04B5/04C04B18/08C04B18/12C04B2103/302C04B2103/22C04B2103/12C04B2103/65
Inventor 闫亚杰田利军李祥瑞贾勇冯锐钊
Owner 略奇(北京)科技有限公司
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