A kind of road asphalt additive and preparation method thereof

An asphalt additive and highway technology, applied in building components, buildings, building structures, etc., can solve the problems of unsatisfactory anti-rutting and anti-cracking effects, poor compatibility, and inability to evenly disperse asphalt pavement, and improve the interface bonding. conditions, good compatibility, and the effect of improving adhesion performance

Active Publication Date: 2021-04-06
浙江江河建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing raw materials of this anti-rutting additive are polyolefin, waste polyolefin and waste rubber powder, and the compatibility between each component of the waste polymer used for preparing the anti-rutting additive is poor, and the compatibility between each component and asphalt is also poor. Therefore, it cannot be uniformly dispersed in asphalt, making the anti-rutting and anti-cracking effect of asphalt pavement unsatisfactory

Method used

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  • A kind of road asphalt additive and preparation method thereof
  • A kind of road asphalt additive and preparation method thereof
  • A kind of road asphalt additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1-3

[0040] In the preparation example 1-3, the neoprene latex is selected from the neoprene latex sold by Shandong Fushun New Material Technology Co., Ltd. with the article number S233, and the EVA is selected from the EVA sold by the Xinwang Plastic Raw Materials Management Department in Zhangmutou, Dongguan City with the article number 40W. Resin, SBS is selected from the SBS sold by Dongguan Hairun Plastic Chemical Co., Ltd. with the product number F675.

preparation example 1

[0041] Preparation Example 1: Pulverize waste tires, place them in a microwave device with a power of 1000W, activate them for 40s, take them out, mix them with neoprene latex, EVA and SBS, extrude, granulate, and pulverize to obtain modified waste rubber powder , the mass ratio of waste tires, neoprene latex, EVA and SBS is 1:0.5:0.3:0.4.

preparation example 2

[0042] Preparation Example 2: Pulverize waste tires, place them in a microwave device with a power of 1100W to activate for 35s, take them out, mix them with neoprene latex, EVA and SBS, extrude, granulate, and pulverize to obtain modified waste rubber powder , the mass ratio of waste tires, neoprene latex, EVA and SBS is 1:0.7:0.5:0.6.

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Abstract

The invention discloses a road asphalt additive and a preparation method thereof. The road asphalt additive comprises the following components by weight: 6-10 parts of modified waste rubber powder, 45-50 parts of waste PVC film particles, 1-3 parts of compatibilizer, 6-10 parts of rock asphalt, 8-12 parts of horse Polyethylene wax grafted with maleic anhydride; waste PVC film particles are made by the following method: crush clean PVC film into film blocks with a length and width of 7-12mm, and then mix with maleic anhydride grafted PE copolymer, nitrile rubber Mix with mica powder according to the ratio, extrude and granulate. The road asphalt additive of the invention has the advantages of improving the rutting resistance and fatigue cracking resistance of the asphalt pavement, prolonging the service life of the road, making the asphalt pavement absorb automobile tail gas and reducing air pollution.

Description

technical field [0001] The invention relates to the technical field of road construction, more specifically, it relates to a road asphalt additive and a preparation method thereof. Background technique [0002] Due to the increasing number of vehicles in our country and the heavy load of transportation, the phenomena of rutting and cracking on asphalt pavement are becoming more and more serious, especially in the hot areas in southern my country. This phenomenon has become one of the main damage forms of asphalt roads in our country, seriously affecting the driving safety, service level and service life of asphalt roads. [0003] In order to prevent road rutting and cracking, commonly used measures are: (1) Grading improvement; (2) Modified asphalt or mixed with various polyester fibers, lignin fibers and mineral fibers; (3) Adding anti-rutting agent. The first two methods are prone to problems such as segregation, large residual void ratio, water seepage and water damage....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L51/06C08L19/00C08L9/02C08L11/02C08L23/08C08L53/02C08L99/00C08K3/34C08K7/24C08K3/04C08K9/02C08L95/00
CPCC08L27/06C08L95/00C08L51/06C08L19/003C08L9/02C08L11/02C08L23/0853C08L53/02C08L99/00C08K3/34C08K7/24C08K3/04C08K9/02
Inventor 曹小军叶吉松屠月飞徐浙钧
Owner 浙江江河建设有限公司
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