Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of gutta-percha modified asphalt

A technology of modified asphalt and eucommia gum, applied in the field of preparation of eucommia gum modified asphalt, can solve the problems of poor compatibility between eucommia gum and base asphalt, segregation of modified asphalt, poor storage stability, etc. Guarantee the effect of modification and improve compatibility

Inactive Publication Date: 2020-12-25
NANJING FORESTRY UNIV
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a preparation method of eucommia gum modified asphalt, to solve the problem of poor compatibility between eucommia gum and matrix asphalt, poor road performance, and segregation of modified asphalt during industrial production or long-term storage. poor storage stability
[0011] In order to solve the problems of poor compatibility between eucommia gum and base asphalt, poor road performance, segregation of modified asphalt during industrial production or long-term storage, and poor storage stability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention provides a kind of preparation method of eucommia gum modified asphalt, and concrete implementation steps are as follows:

[0015] (1) Put the base asphalt in an oven and heat it to 130°C, pour it into a 250ml beaker, and use it for preparing eucommia gum modified asphalt;

[0016] (2) Start the internal mixer, first drop a certain amount of eucommia gum cut into small pieces and organic nano-clay in batches for blending, after mixing evenly, pour a certain amount of asphalt, and control the blending temperature of the internal mixer to be 80 ℃, the speed is 60rad / min;

[0017] (3) After blending for 5 minutes, add a certain amount of zinc oxide, stearic acid, anti-aging agent, plasticizer, accelerator, and sulfur in sequence, and knead for 30 minutes so that the sulfur can be evenly distributed in the Eucommia gum. Take it out from the machine to prepare the modifier masterbatch required for asphalt modification;

[0018] (4) Cut the modifier ma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of gutta-percha modified asphalt, belongs to the technical field of asphalt materials, and solves the problems of poor compatibility between gutta-perchaand matrix asphalt, poor pavement performance, poor storage stability and the like at present. The preparation method comprises the following steps: firstly, blending gutta-percha and a compounding agent in an internal mixer to prepare a modifier master batch required by asphalt modification; putting the beaker filled with the matrix asphalt under a high-speed shearing machine, heating by using anelectrothermal furnace, setting the rotating speed of a rotor, stirring, adding the shearing master batch, modifying the asphalt while vulcanizing the gutta-percha by using sulfur, and continuously shearing to obtain uniformly distributed gutta-percha modified asphalt; and finally, carrying out a pavement performance test on the gutta-percha modified asphalt, and evaluating the dispersity of sulfur and gutta-percha in the asphalt by adopting an infrared spectrometer. The gutta-percha modified asphalt prepared by the preparation method disclosed by the invention meets various road performancerequirements, the segregation phenomenon is reduced in industrial production and construction transportation processes, and the storage stability of the gutta-percha modified asphalt is improved.

Description

technical field [0001] The invention relates to a preparation method of eucommia gum modified asphalt, which belongs to the technical field of asphalt materials. Background technique [0002] Due to the sharp increase in traffic flow and driving frequency of modern highways and roads, the axle load of freight vehicles continues to increase, and it is urgent to further improve the road performance of the road, such as anti-rutting ability at high temperature, anti-cracking ability at low temperature, and improve skid resistance and durability. Abrasion resistance, etc., prolonging the service life of the road. Asphalt pavement is widely used in high-grade roads due to its smoothness, high driving comfort, convenient maintenance, high cost, unsuitability for heavy-duty traffic, and steep roads. At present, asphalt is modified mainly by adding external admixtures (modifiers) such as rubber, resin, high molecular polymer, ground rubber powder or other fillers, or by taking meas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L95/00C08L7/00C08K3/34C08K3/22C08K5/09C08K3/06C08K13/02
CPCC08K2003/2296C08K2201/011C08L95/00C08L7/00C08K3/346C08K3/22C08K5/09C08K3/06C08K13/02
Inventor 李宁许涛许俊杰
Owner NANJING FORESTRY UNIV