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Preparation method of antiskid and wear-resistant colored asphalt concrete

A technology of asphalt concrete and colored asphalt, which is applied in coatings, epoxy resin coatings, etc., can solve the problems of insufficient wear resistance and anti-skid performance of colored pavements, achieve rich raw materials, strong anti-skid performance, and improve anti-skid performance Effect

Inactive Publication Date: 2020-09-18
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a preparation method of anti-slip and wear-resistant colored asphalt concrete to solve the problem of insufficient wear resistance and anti-skid performance of existing colored pavements

Method used

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  • Preparation method of antiskid and wear-resistant colored asphalt concrete
  • Preparation method of antiskid and wear-resistant colored asphalt concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In order to verify the feasibility of the present invention, an embodiment of anti-slip and wear-resistant colored asphalt concrete is provided here.

[0028] Step 1, preparing steel slag asphalt mixture. Prepare the following raw materials, based on 100 parts of total weight, the weight ratio of each raw material is as follows: 5 parts of asphalt, 28 parts of steel slag, 58 parts of crushed stone (20 parts of 0-3mm crushed stone, 10 parts of 3-5mm crushed stone, 28 parts of 5-10mm gravel), 9 parts of mineral powder. Among them, SBS asphalt is selected as asphalt; electric furnace slag with a particle size of 5-10mm is screened by shaking method for steel slag; limestone is used for 0-3mm crushed stone, and basalt is selected for 3-5mm and 5-10mm crushed stone. Raise the temperature of the asphalt to 160-170°C and maintain for 4-6 hours; raise the temperature of the stone to 170-180°C, raise the temperature of the steel slag to 180-200°C, and maintain for 5-8 hours; ra...

Embodiment 2

[0033] In order to verify the skid resistance of the present invention's anti-skid, wear-resistant colored asphalt concrete, it is necessary to measure BPN, that is, to evaluate the road surface skid resistance with a pendulum instrument, the larger the BPN, the stronger the road surface skid resistance, and the smaller the BPN. The weaker the anti-slip ability of the road surface. First, with reference to Example 1, form anti-skid, wear-resistant colored asphalt concrete and ordinary colored asphalt concrete, wherein the 5-10 mm gravel of ordinary colored asphalt concrete is basalt gravel, and 2% carbon black is used in the coating without adding steel slag and rock asphalt. Secondly, refer to the "Test Method for Measuring Pavement Friction Coefficient with Pendulum Instrument" in "Highway Subgrade Pavement Field Test Regulations" (JJG E60) to measure BPN, and compare the difference in anti-skid ability. Finally, the material differences between ordinary asphalt concrete an...

example 3

[0040]In order to verify the wear resistance of the anti-skid, wear-resistant colored asphalt concrete of the present invention, the anti-skid, wear-resistant colored asphalt concrete and ordinary colored asphalt concrete formed in Example 2 are used to carry out comparative tests. Carry out the rutting test (temperature is 20°C, compaction time is 2h) in the method of "Asphalt Mixture Rutting Test" (JTG E20-2011). "Test Method for Measuring Pavement Friction Coefficient with Pendulum Instrument" in "Measurement of Pavement Friction Coefficient" was used to measure BPN, and compare the difference in anti-skid ability after rutting wear. The table below shows the test results.

[0041] Table 3 Test results of BPN pendulum value after rutting wear

[0042]

[0043] As can be seen from Table 3, the BPN of the anti-skid and wear-resistant colored asphalt concrete of the present invention is always higher than the BPN of the ordinary colored asphalt concrete without steel slag;...

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Abstract

The invention discloses a preparation method of an antiskid and wear-resistant colored asphalt concrete. The preparation method comprises the following three steps: firstly, putting steel slag, brokenstone, asphalt and mineral powder into a mixing pot according to a sequence and proportion, mixing, compacting and molding to prepare steel slag concrete; secondly, uniformly stirring epoxy resin, acuring agent, rock asphalt, TiO2, a coloring agent, a diluent, water, a dispersing agent and an emulsifying agent according to a sequence and a proportion to prepare colored spraying; and finally, spraying the colored epoxy coating to the surface of the asphalt concrete. The skid resistance, the wear resistance and the color retention performance of the prepared colored asphalt concrete are remarkably improved, and the application effect in special road sections such as bus lanes is good.

Description

technical field [0001] The invention relates to the preparation of anti-slip and wear-resistant colored asphalt concrete, which belongs to the field of road engineering. Background technique [0002] Build colored asphalt pavement on special road sections such as bus lanes, road intersections, and landscape roads to guide traffic and beautify the landscape. At present, the types of colored asphalt pavement in the domestic market are generally divided into two categories: decolorization process (colored asphalt) and mixed process (color spraying.) [1] . The decolorization process refers to the binder made by blending and modifying chemical materials such as petroleum resin and SBS modifier. The raw material cost of the colored asphalt prepared is high and the consumption is large, the processing procedure is complicated and the processing cost is high; Surface spraying spraying agent is used to change the color of the pavement. Tracking and observation of the colored paveme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B41/65C09D163/00C09D7/61C09D7/65C04B111/20
CPCC04B26/26C04B41/5041C04B41/65C04B2111/00362C04B2111/0075C04B2111/2038C08K2003/2241C09D163/00C09D7/61C09D7/65C04B14/18C04B14/14C04B18/142C04B18/141C04B41/5036C04B41/4853C04B41/478C04B41/46C04B41/4539C08L95/00C08K3/22
Inventor 耿韩郭文灿
Owner SHANGHAI MARITIME UNIVERSITY
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