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Steel slag asphalt concrete with good anti-rutting performance and preparation method thereof

A steel slag asphalt and anti-rutting technology, applied in the field of asphalt concrete, can solve the problems of unsatisfactory anti-rutting performance, achieve the effects of improving anti-rutting performance, improving viscosity, and avoiding reaction

Inactive Publication Date: 2020-08-18
杨琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a steel slag asphalt concrete with good anti-rutting performance and a preparation method thereof, which solves the problem that the existing steel slag asphalt concrete has an unsatisfactory anti-rutting performance

Method used

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  • Steel slag asphalt concrete with good anti-rutting performance and preparation method thereof
  • Steel slag asphalt concrete with good anti-rutting performance and preparation method thereof

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preparation example Construction

[0033] A method for preparing steel slag asphalt concrete with good anti-rutting performance, comprising the following steps:

[0034] S1. Steel slag treatment: put the steel slag into the screening equipment for screening, and screen out impurities such as metal substances and tiles in the steel slag;

[0035] S2. Coarse aggregate preparation: Add steel slag and limestone gravel processed in S1 to the crushing equipment in proportion, and crush the steel slag and limestone gravel into a particle size of 2.15-13.5mm through the crushing equipment. After the crushing is completed, mix The material is transferred to the drying equipment for drying, and finally the coarse aggregate is obtained;

[0036] S3. Mixing preparation: import the coarse aggregate and fine aggregate, cement, filler and phase change material prepared in S2 into the mixing device, fully and uniformly mix each raw material, obtain the mixed material after the mixing is completed, and then take it out for use;...

no. 1 example 1

[0051] Based on the first embodiment of the present invention, a method for preparing steel slag asphalt concrete with good rutting resistance, the second embodiment of the present invention provides another method for preparing steel slag asphalt concrete with good rutting resistance, wherein the second embodiment Examples will not hinder the independent implementation of the technical solution of the first embodiment.

[0052] Specifically, the present invention provides another method for preparing steel slag asphalt concrete with good anti-rutting performance. The difference lies in:

[0053] It is used to crush steel slag and limestone gravel in S2. The crushing equipment includes a body 1, and a crushing structure 2 is arranged inside the body 1. The crushing structure 2 includes a rotating motor 21, a first crushing roller 22 and a second crushing roller. Two crushing rollers 23, one end of the output shaft of the rotating motor 21 and the second crushing roller 23 are ...

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Abstract

The invention provides steel slag asphalt concrete with good anti-rutting performance and a preparation method thereof. The steel slag asphalt concrete with good anti-rutting performance comprises thefollowing raw materials: cement, coarse aggregate, fine aggregate, asphalt, filler, a fiber stabilizer and a phase change material. The steel slag asphalt concrete is mainly composed of cement, coarse aggregate, fine aggregate, asphalt, filler, a fiber stabilizer and a phase change material; by means of the fiber stabilizer, mutual combination of the raw materials can be promoted, and the viscosity of the asphalt mixture is further improved, so that good low-temperature anti-cracking performance is achieved; by means of the phase change material, the cement and the fine aggregate, the steel slag is added into the concrete, so that a certain neutralization effect on chemical components in the steel slag is achieved, great reaction with the chemical components in the steel slag is avoided,the original physical properties of the raw materials are maintained, the stability of the concrete is further improved, the anti-rutting performance of the concrete is further improved, and the service life of the concrete is prolonged.

Description

technical field [0001] The invention relates to the field of asphalt concrete, in particular to a steel slag asphalt concrete with good anti-rutting performance and a preparation method thereof. Background technique [0002] Asphalt concrete, commonly known as asphalt concrete, is artificially selected with a certain gradation composition of mineral materials, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions The resulting mixture can be divided into two categories: petroleum asphalt and coal tar pitch according to the different binders used, and some are mixed with or mixed with natural asphalt. According to the different types of aggregates used, they can be divided into crushed stone There are several types of gravel, sandy, and slag, and crushed stone is the most commonly used. [0003] Steel slag is the waste slag discharged during the steelmaking pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B18/142C04B14/28C04B18/26C04B14/38C04B16/0683C04B24/36C04B2103/0068
Inventor 王建王伊诺
Owner 杨琼
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