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A regenerative road cold patch material

A technology of cold patching material and road, which is applied in the field of road paving. It can solve the problems that the cold patching material cannot quickly form strength, the joints of the pit interface fall off, and the cohesion of the cold patching material is poor, so as to improve the strength and shear resistance. Strength, the effect of increasing the degree of cross-linking

Active Publication Date: 2020-10-09
ZHEJIANG XIUSHAN GARDEN CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to meet the storage performance and ease of construction of asphalt cold patching materials, cold patching materials often cannot quickly develop strength, and the cohesion of the above-mentioned cold patching materials is poor, so it is easy to appear loose and pitted interface joints again after opening to traffic. The seams fall off and other problems, and the durability is poor, so it can usually only be used as an emergency repair material for road potholes, which needs to be improved

Method used

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  • A regenerative road cold patch material
  • A regenerative road cold patch material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1, a regenerative road cold patch material, the raw material components are shown in Table 1 in parts by weight. Wherein, the cold patch is prepared through the following steps:

[0033] Step 1: Heat base asphalt and planing and milling material to 120-140°C, add kerosene and stir for 20-30 minutes, then add cold patching additives and keep warm to 100°C to obtain diluted asphalt;

[0034] Step 2, the polyurethane prepolymer, water-based epoxy resin and octadecyltrimethylammonium chloride are dropped into the diluted asphalt and stirred evenly to obtain the mixture;

[0035] Step 3, putting styrene-butadiene-styrene block copolymer and dicumyl peroxide into the cold repair mixture and stirring evenly to obtain the modified mixture;

[0036] In step 4, limestone is put into the modified mixture for mixing and stirring to obtain cold patching material.

Embodiment 2

[0037] Embodiment 2 differs from Embodiment 1 in that, in parts by weight, the raw material components are as shown in Table 1.

Embodiment 3

[0038] Example 3, a regenerative road cold patch material, the raw material components are shown in Table 1 in parts by weight. Wherein, the cold patch is prepared through the following steps:

[0039]Step 1: Heat base asphalt and planing and milling material to 120-140°C, add kerosene and stir for 20-30 minutes, then add cold patching additives and keep warm to 100°C to obtain diluted asphalt;

[0040] Step 2, putting the polyurethane prepolymer and octadecyltrimethylammonium chloride into the diluted asphalt and stirring evenly to obtain the mixture;

[0041] Step 3, putting styrene-butadiene-styrene block copolymer and dicumyl peroxide into the cold repair mixture and stirring evenly to obtain the modified mixture;

[0042] In step 4, limestone is put into the modified mixture for mixing and stirring to obtain cold patching material.

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Abstract

The invention discloses a regenerative road cold filling material, and relates to the technical field of road paving. The regenerative road cold filling material is prepared from, by weight, 80-120 parts of matrix asphalt, 80-120 parts of milling material, 1-5 parts of cold filling addictive, 10-25 parts of separant, 20-40 parts aggregate and 20-30 parts of polyurethane prepolymer. The milling material is a waste asphalt mixture, the cold filling material is prepared by using the milling material, and the milling material is fully recycled. The polyurethane prepolymer can improve the adhesiveaggregation performance of the cold filling material, so that the cold filling material and a pit slot interface can form a stronger bonding effect, thereby preventing the asphalt mixture from loosening too early or preventing an interface seam of the pit slot from being damaged the pit slot is filled, and then the durability of the cold filling material is improved. After the polyurethane prepolymer and liquid asphalt are fully mixed and solidified, the asphalt is evenly distributed in a spatial net-shaped structure formed by the polyurethane prepolymer, not only is the strength of the cold filling material improved, but also the cold filling material cannot become sticky and soft at a high temperature.

Description

technical field [0001] The invention relates to the technical field of road paving, and more specifically, relates to a regenerative cold patch material for roads. Background technique [0002] Cold patch is a road repair material that can be used around the clock and is suitable for repairing various types of road surfaces in any weather and environment, such as asphalt concrete roads, cement concrete roads, parking lots, airport runways, etc. [0003] The Chinese patent with the notification number CN101008172B discloses a regenerative road cold patching material, which includes the following components in weight percentage: milling material 56-87%; cold patching additive 0.08-0.34%; diesel oil 0.87% -1.6%; the rest is new stone, among which the milling material is composed of Type I milling material with a particle size of 10-19mm and 4 / 6 of the total amount of milling material with a particle size of 5-10mm. The milling material and 1 / 6 of the three-type milling materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B24/28
CPCC04B24/281C04B24/282C04B26/26C04B2111/0075C04B18/16C04B24/00C04B2103/0068C04B24/12C04B24/2676C04B14/28
Inventor 李钢叶国良李小飞程新祥陈云云
Owner ZHEJIANG XIUSHAN GARDEN CONSTR CO LTD
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