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Environment-friendly high-performance coal gangue mixture base layer and preparation method thereof

A technology for mixture and coal gangue, which is applied in the field of environment-friendly high-performance coal gangue mixture base and its preparation, can solve the problems of lowering project cost, low early strength, shrinkage cracking, etc., so as to improve early strength and reduce cracking. , the effect of reducing the formation of cracks

Pending Publication Date: 2019-12-31
HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an environment-friendly high-performance coal gangue mixture base and its preparation method, while ensuring that the inorganic binder stabilizes the road performance of the coal gangue mixture, it solves the problem of inorganic binders in the prior art. Stabilize the technical problems of low early strength, severe shrinkage cracking and poor durability of the coal gangue mixture pavement base, and reduce the project cost

Method used

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  • Environment-friendly high-performance coal gangue mixture base layer and preparation method thereof
  • Environment-friendly high-performance coal gangue mixture base layer and preparation method thereof

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Embodiment 1

[0027] An environment-friendly high-performance coal gangue mixture base, made of the following raw materials in parts by weight: 76.5 parts of non-spontaneous coal gangue coarse aggregate, 15.7 parts of spontaneous coal gangue fine aggregate, non-spontaneous combustion coal gangue fine aggregate 7.8 parts of material, 3.5 parts of cement, 0.15 parts of curing accelerator, 7 parts of filler and 0.03 part of anti-cracking fiber.

Embodiment 2

[0029] An environment-friendly high-performance coal gangue mixture base, made of the following raw materials in parts by weight: 76.5 parts of non-spontaneous coal gangue coarse aggregate, 15.7 parts of spontaneous coal gangue fine aggregate, non-spontaneous combustion coal gangue fine aggregate 7.8 parts of material, 3 parts of cement, 0.15 parts of curing accelerator, 7 parts of filler and 0.03 parts of anti-cracking fiber

Embodiment 3

[0031] An environment-friendly high-performance coal gangue mixture base, made of the following raw materials in parts by weight: 76.5 parts of non-spontaneous coal gangue coarse aggregate, 15.7 parts of spontaneous coal gangue fine aggregate, non-spontaneous combustion coal gangue fine aggregate 7.8 parts of material, 3.5 parts of cement, 0.1 part of curing accelerator, 7 parts of filler and 0.03 part of anti-cracking fiber

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Abstract

The invention relates to the technical field of road engineering materials, in particular to an environment-friendly high-performance coal gangue mixture base layer and a preparation method thereof. The mixture base layer is prepared from the following raw materials in parts by weight: 72-81 parts of an unspontaneous-combustion coal gangue coarse aggregate, 12.7-18.7 parts of a spontaneous combustion coal gangue fine aggregate, 6.3-9.3 parts of an unspontaneous-combustion coal gangue fine aggregate, 3-4 parts of cement, 0.1-0.2 part of a curing accelerator, 5-9 parts of a filler and 0.02-0.04part of anti-cracking fibers. According to the invention, road performance of the inorganic binder stabilized coal gangue mixture is ensured, the technical problems of low early strength, serious shrinkage cracking and poor durability of inorganic binder stabilized coal gangue mixture road base layers in the prior art are solved, and construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of road engineering materials, in particular to an environment-friendly high-performance coal gangue mixture base and a preparation method thereof. Background technique [0002] The awareness of effective use of resources and reduction of environmental pollution has gradually become popular among the people, but the demand for construction materials for the construction of transportation infrastructure (especially road engineering) is extremely unbalanced with the limited natural sand and gravel resources. Coal gangue is solid waste produced during coal excavation and production. As the amount of coal mining increases year by year, the coal gangue produced with coal mining cannot be rationally utilized, resulting in an increase in the national storage of coal gangue year by year. Due to the accumulation of coal gangue, it accounts for Land and pollution issues cannot be ignored. The application of coal gang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00017C04B2201/50C04B18/12C04B14/28C04B18/08C04B16/0675
Inventor 郝孟辉康存利赵旭郑亚坤杨素通
Owner HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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