Concrete pavement material with function of adsorbing and solidifying CO2 in automobile exhaust, pavement, and preparation and application methods thereof

A technology for concrete pavement and automobile exhaust, which is applied to cohesive pavement paved on site, roads, roads, etc., can solve problems that have not been disclosed, achieve good water permeability, delay climate warming trend, and excellent economic benefits Effect

Inactive Publication Date: 2012-12-12
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The systematic research on its material system ratio and core preparation technology has not been reported yet, and its innovative ideas, theories and technologies have significant originality
At the same time, through retrieval, for the vehicle exhaust CO 2 Concrete pavement material with adsorption and curing function and its preparation technology have not yet been published related patents

Method used

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  • Concrete pavement material with function of adsorbing and solidifying CO2 in automobile exhaust, pavement, and preparation and application methods thereof
  • Concrete pavement material with function of adsorbing and solidifying CO2 in automobile exhaust, pavement, and preparation and application methods thereof
  • Concrete pavement material with function of adsorbing and solidifying CO2 in automobile exhaust, pavement, and preparation and application methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Based on vehicle exhaust CO 2 For the concrete pavement material I with adsorption and curing functions, the materials are selected according to the following mass ratios:

[0036] Cement: 60%;

[0037] Steel slag powder: 25%;

[0038] Red mud: 15%;

[0039] Basalt fiber: 1.5% by volume.

[0040] Basalt gravel: 4 times the mass of the cement-based composite cementitious material, three particle size ranges are taken respectively: 2.36-4.75mm, 4.75-9.5mm, 9.5-19.0mm.

[0041] Based on vehicle exhaust CO 2 Preparation of concrete pavement I with adsorption and curing function:

[0042] (1) Mix cement, steel slag powder (dried), and red mud (dried) in proportion to obtain a cement-based composite cementitious material, and then mix and stir with basalt fiber to obtain a mixture.

[0043] (2) Mix the mixture of step (1) with basalt gravels in three particle size ranges, and add water (the amount is 0.27% of the mass of the cement-based composite cementitious material)...

Embodiment 2

[0053] Based on vehicle exhaust CO 2 For the concrete pavement material II with adsorption and curing functions, the materials are selected according to the following mass ratios:

[0054] Cement: 50%;

[0055] Steel slag powder: 30%;

[0056] Red mud: 20%;

[0057] Basalt fiber: 1.5% by volume.

[0058] Basalt gravel: 3.8 times the mass of cement-based composite cementitious materials, three particle size ranges are taken respectively: 2.36-4.75mm, 4.75-9.5mm, 9.5-19.0mm.

[0059] Based on vehicle exhaust CO 2 Preparation of concrete pavement II with adsorption and curing function:

[0060] (1) Mix cement, steel slag powder (dried), and red mud (dried) in proportion to obtain a cement-based composite cementitious material, and then mix and stir with basalt fibers to obtain a mixture.

[0061] (2) Mix the mixture of step (1) with basalt gravels in three particle size ranges respectively, and add water (the amount is 0.26 of the quality of cement-based composite cementiti...

Embodiment 3

[0071] Based on vehicle exhaust CO 2 For the concrete pavement material III with adsorption and curing functions, the materials are selected according to the following mass ratios:

[0072] Cement: 50%;

[0073] Steel slag powder: 40%;

[0074] Red mud: 10%;

[0075] Basalt fiber: 1.5% by volume.

[0076] Basalt gravel: 3.5 times the mass of cement-based composite cementitious materials, three particle size ranges are taken respectively: 2.36-4.75mm, 4.75-9.5mm, 9.5-19.0mm.

[0077] Based on vehicle exhaust CO 2 Preparation of Concrete Pavement III with Adsorption and Curing Function:

[0078] (1) Mix cement, steel slag powder (dried), and red mud (dried) in proportion to obtain a cement-based composite cementitious material, and then mix and stir with basalt fiber to obtain a mixture.

[0079] (2) Mix the mixture of step (1) with basalt gravels in three particle size ranges, and add water (the amount is 0.25 of the mass of the cement-based composite cementitious materia...

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Abstract

The invention relates to a concrete pavement material with a function of adsorbing and solidifying CO2 in automobile exhaust, a pavement and preparation and application methods thereof. The pavement material is the mixture of a cement-based composite cementing agent, fibers, broken basalt stones and the like. The fibers are basalt fibers, the grain size of the broken basalt stones ranges from 2.36 to 19.00 mm. The concrete pavement which is formed by casting water and at least two layers of the concrete pavement material provided by the invention has a compact bottom layer and a loose top layer; and the grain size distribution of the broken stones is increased layer by layer from bottom to top. On the one hand, the concrete pavement material has better road performances and excellent durability; and more importantly, all the ingredients of the concrete pavement material have excellent functions of adsorbing and solidifying CO2 in automobile exhaust. The concrete pavement material is particularly suitable for road pavements with high traffic flow, dense exhaust emissions (such as traffic light intersections, bus stops, parking lots and toll stations) and poor air circulation. Besides, a large amount of industrial wastes (such as steel slag and red mud) are utilized, to achieve remarkable energy-saving and environment-friendly effects.

Description

technical field [0001] The invention belongs to the technical field of road building materials, and relates to a 2 Concrete pavement material with adsorption and curing function, pavement and its preparation and application method. Background technique [0002] At present, gasoline and diesel are the main fuels in the transportation industry. After burning, a large amount of automobile exhaust gas is removed. In addition to some harmful substances, the automobile exhaust gas contains about 12% to 15% of CO 2 It is the main factor causing global warming, so automobile exhaust is an important factor leading to the "greenhouse effect" of the earth. Currently, CO 2 China's emissions have exceeded 20 billion tons, of which vehicle emissions account for about 10% to 15%. According to the statistics of the United States, the annual CO of the transportation sector in the United States 2 Emissions account for 27% of the country's total greenhouse gas emissions; in the EU15, trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/14
CPCC04B28/02Y02W30/91C04B14/14C04B14/4668C04B18/0409C04B18/142C04B20/0076C04B2103/302
Inventor 高英力程领
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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