Polymer emulsified and re-cross-linked asphalt colloid mixture and its preparing process

A technology of heavy-duty asphalt and polymer, which is applied in the direction of building structure, building components, building insulation materials, etc., and can solve the problems of emulsified asphalt performance, corrosion of equipment, and great cost difference.

Inactive Publication Date: 2003-02-12
钦兰成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the different formulas and process methods selected, the product performance has been improved, but the performance quality is very unstable, the cost varies greatly, and additive acids are needed to adjust the pH value between 2-2.5, which affects the performance of emulsified asphalt. Great impact, corroding equipment, causing environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Get 180 grams of clean water, add 10 grams of slow-cracking and fast-setting type (JWRH-MK type Shanghai Jingwei Co., Ltd.) emulsifier in the water, add 15 grams of polymer SBR latex, 5 grams of dispersant naphthalenesulfonic acid formaldehyde mixed sodium salt 1. After 7.5 grams of polyethylene glycol fatty acid esters were stirred evenly, the temperature was raised to 55° C., and the stirring was continued and the temperature was maintained. Take 282.5AH--704 heavy traffic asphalt A, heat it to 145°C, put it into a colloid mill for grinding at a speed of 3500 rpm, and process it for two minutes to obtain the polymer emulsified heavy traffic asphalt mixed colloid. The test results show (see Table 2) that the various indicators are ideal, the residual amount on the sieve is small, the storage stability is good, the softening point is high, the viscosity and toughness are good, and the aging performance is good.

Embodiment 2

[0058] Get 150 grams of clean water, add 7.5 grams of polyoxyethylene alkyl quaternary ammonium hydrochloride emulsifier in water, 1.5 grams of sodium methylene bis-naphthalene sulfonate (NNO), 10 grams of polyorganosiloxane and polyhydric alcohol Graft copolymer stabilizer, after stirring evenly, heat to 65° C., then add 15 grams of (acrylonitrile-butadiene-styrene resin ABS) copolymer latex, and mix evenly. Keep warm for use, and take 310 grams of heavy asphalt C, heat it to 130°C, and after being heated evenly, enter the colloid mill together with the prepared solution for grinding at a speed of 2980 rpm. After grinding for two minutes, the qualified polymer emulsified heavy traffic asphalt colloid was obtained. The analysis results show (see Table 3), the viscosity of the colloid, the remaining amount on the sieve, and the evaporation residue content reach the specified standards, the storage stability is only 0.06 in 24 hours, the low temperature storage stability has no ...

Embodiment 3

[0061] Take 157.5 grams of clean water, add 9 grams of RH-C05 emulsifier, 6 grams of sodium methylene bis-naphthalene sulfonate MF dispersant, and 10 grams of SaSobit stabilizer, stir well, and heat up to 55°C , and then add 2.5 grams of SBS latex polymer, continue to stir the mixture evenly to maintain the temperature for use, and take 305 grams of heavy-duty AH-100# asphalt and heat it to 130 ° C. After being evenly heated, slowly add it into the prepared solution and stir evenly, then grind it in a colloid mill for 2 minutes at a speed of 2980 rpm to obtain a qualified mixed colloid (see Table 3 for its properties). The colloid has high viscosity, good stability, no coarse particles and agglomerates in low temperature storage, high softening point, strong viscosity and toughness, which is beneficial to the maintenance of the slurry seal layer overlay. The original roadbed of Qianrong Line in Wuxi City is still good, but the road surface is damaged. There are cracks and pits...

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Abstract

A polymer and emulsified recrosslinked asphalt mixed colloid contains polymer as modifier, disperser, stabilizer, recrosslinked asphalt, emulsifier and water, and can be used for road pavement. Its advantages are simple preparing process and excellent performance.

Description

[0001] Technical Field The present invention relates to an emulsified asphalt mixed colloid, in particular to a polymer emulsified heavy traffic asphalt mixed colloid (hereinafter referred to as mixed colloid) and its preparation method. technical background [0002] There has been a long history of using petroleum asphalt for road construction. People use heating to make asphalt that is solid at room temperature into a liquid state in order to mix it with mineral materials. However, hot asphalt construction has many disadvantages, not only requires a lot of heat energy, but also pollutes the environment. , harmful to the human body, with the development of science and technology, the technology of using asphalt in cold state-emulsified asphalt slurry sealing layer technology has been produced. The so-called slurry seal is to prepare asphalt into a liquid substance at room temperature, and then mix it with selected mineral materials into a slurry and spread it on the road surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00
Inventor 钦兰成王立志张胜军孙永敏王力军
Owner 钦兰成
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