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Fissure cementation glue for pavement, and preparation method for fissure cementation glue

A technology of joint glue and test method, which is applied in the direction of roads, roads, pavement details, etc., can solve the problems of high maintenance cost, high price of imported materials, and difficulty in meeting the needs of joint filling in cold regions, and achieve high temperature stability. Effect

Inactive Publication Date: 2012-05-02
HEILONGJIANG CHANGHE CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Now the application of joint filling materials is very common, and there are many varieties of joint filling materials, such as modified asphalt joint filling materials, sealants, silicone crack repair materials, joint tapes, imported joint filling materials, etc., most of which are domestically produced It is difficult for joint filling materials to meet the needs of road joint filling in cold regions, and the price of some imported materials is very high, resulting in high maintenance costs

Method used

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  • Fissure cementation glue for pavement, and preparation method for fissure cementation glue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] First, heat No. 90 petroleum asphalt with 64.4% mass percentage to 185-195°C to a fluid state, and add 4.5% polymer under stirring (the polymer includes 40% star SBS and 60% linear SBS) Grinding by a colloid mill with a rotating speed of 3500RPM, adding 11% reverse furfural extract oil, 7% mineral oil, and then adding 13% waste rubber powder, then swelling for 5 hours under stirring, and then adding 0.1% Sulfur powder was reacted for another 1 hour to obtain the pavement joint glue product.

Embodiment 2

[0032] At first the No. 110 petroleum pitch that mass percent is 67.9% is heated to 185~195 ℃ to flow state, 5% polymer (polymer comprises 35% star SBS, 65% linear SBS) under stirring state, Grind by a colloid mill with a rotation speed of 3000RPM, add 12% reverse furfural extract oil, 5% mineral oil, and 10% waste rubber powder in sequence, then swell for 5 hours under stirring, and then add 0.1% sulfur powder , and then reacted for 2 hours to obtain a pavement joint glue product.

[0033] Table 1 shows the comparison of technical indicators between the products of the above examples and other joint filling materials.

[0034] Table 1 Comparison of technical indicators of joint filling materials

[0035]

[0036] It can be seen from the above table 1 that the joint glue has outstanding advantages in terms of high temperature performance, low temperature performance, elasticity and flexibility, and most materials are difficult to meet the requirements under low temperature...

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Abstract

The invention discloses fissure cementation glue for pavement, and a preparation method for the fissure cementation glue. The fissure cementation glue consists of the following components in percentage by mass: 45 to 75 percent of petroleum asphalt, 4 to 10 percent of polymer, 0.06 to 0.2 percent of stabilizing agent, 8 to 15 percent of compatilizer, 3 to 10 percent of softener and 6 to 20 percent of waster rubber powder. The preparation method comprises the following steps of: heating 45 to 75 mass percent of petroleum asphalt to 185 to 195 DEG C, wherein the petroleum asphalt flows at the temperature of between 185 and 195 DEG C, adding 4 to 10 percent of polymer with stirring, grinding by using a colloid mill at the revolving speed of 2,000 to 4,000 revolutions per minute, adding 8 to 15 percent of compatilizer, 3 to 10 percent of softener and 6 to 20 percent of waster rubber powder sequentially, swelling with stirring for 2 to 10 hours, adding 0.06 to 0.2 percent of stabilizing agent, and reacting for 1 to 5 hours to obtain a product. The fissure cementation glue for the pavement is high in high temperature stability and low temperature flexibility and elastic recovery capacity, and is special for cementation and filling of fissures and joints on bituminous pavement or cement concrete pavement under the weather conditions of a frigid zone and a polar zone.

Description

technical field [0001] The invention relates to a pavement joint glue and a preparation method thereof. The road surface joint glue of the present invention is suitable for filling and filling cracks and joints on asphalt pavement or cement concrete pavement under cold and extremely cold climate conditions. . Background technique [0002] Pavement cracks are one of the main diseases of our country's highways, which seriously affect the performance of roads, advance the maintenance period of roads and greatly increase maintenance costs, and shorten the service life of roads. Especially in the Northeast of my country, roads are affected by temperature changes during operation and produce more temperature cracks, which have a great impact on the overall performance of the pavement structure. There are many ways to repair pavement cracks. The traditional crack treatment method is to use heated liquid ordinary asphalt and pour it directly into the cracks when the temperature is ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L21/00C08L53/00C08L53/02C08L23/16C08L9/06C08L11/00C08L9/00E01C11/02
Inventor 纪振宇侯芸蔡资胜
Owner HEILONGJIANG CHANGHE CHEM CORP
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