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

Warm-mix sulfur asphalt, mixture containing it and preparation method thereof

A technology for asphalt mixture and mixture, which is used in building thermal insulation materials, chemically processing tar asphalt/petroleum asphalt/natural asphalt, building components, etc. The effect of pollution, low operating temperature and saving asphalt resources

Active Publication Date: 2020-05-15
CHINA PETROLEUM & CHEM CORP +1
View PDF25 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] In order to solve problems such as high service temperature of sulfur asphalt in the prior art and easy to cause environmental pollution, the present invention firstly provides a warm-mixed sulfur asphalt

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Warm-mix sulfur asphalt, mixture containing it and preparation method thereof
  • Warm-mix sulfur asphalt, mixture containing it and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] It is divided into three steps: (1) preparing warm mix agent, (2) preparing warm mix sulfur asphalt, (3) preparing warm mix sulfur asphalt mixture.

[0077] (1) Preparation of warm mix agent

[0078] (1) Preparation and loading

[0079] Put water under the sweating dish plate; connect the sealing system of the sweating dish with the pressurized buffer tank and the compressor; install the decompression buffer tank at the lower part of the sweating dish and connect the vacuum pump; connect the jacket of the sweating dish and the movable coil with the circulation system Connect, fix the coil on the sweating dish; start the heating function of the circulation system with heat transfer oil as the medium, so that the temperature of the circulating oil will rise to 94°C.

[0080] The polyethylene wax by-produced by the high-density polyethylene plant of PetroChina Jilin Petrochemical Ethylene Plant is used as raw material (dropping melting point is 90.3°C; penetration at 25°C...

Embodiment 2

[0094] (1) Preparation of warm mix agent

[0095] (1) Preparation and loading

[0096] Put water under the sweating dish plate. Connect the sealing system of the sweating dish with the pressurized buffer tank and the compressor; install the decompression buffer tank and connect the vacuum pump at the lower part of the sweating dish; connect the jacket of the sweating dish and the movable coil with the circulation system, and fix the coil in the On the sweating dish; using the heat transfer oil as the medium, start the heating function of the circulation system to raise the temperature of the circulation oil to 94°C.

[0097] Use the polyethylene wax by-produced by the high-density polyethylene plant of PetroChina Jilin Petrochemical Ethylene Plant as the raw material (the properties are the same as in Example 1), heat to 94°C and melt, then add dibenzoyl peroxide accounting for 0.03% of the weight of the raw material, and stir evenly Afterwards, add it to the sweating dish. ...

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

PropertyMeasurementUnit
drop melting pointaaaaaaaaaa
particle diameteraaaaaaaaaa
penetrationaaaaaaaaaa
Login to View More

Abstract

The invention discloses warm mixed sulfur asphalt. The product comprises a warm mixing agent, matrix asphalt and sulfur. The warm mixing agent is prepared by performing a sweating process by taking a byproduct polyethylene wax as a raw material. In the sweating process, oil soluble organic matters capable of decomposed to generate gas are pre-added into the byproduct polyethylene wax raw material, and micro-bubbles are formed in a wax layer by means of gas generated by the byproduct polyethylene wax which is heated, so that a liquid component is quickly discharged and separated; meanwhile, in the sweating process, the liquid component is carried out through the wax layer by means of the air flow to separate the solid component from the liquid component in a forced manner, so that the low molecular weight components in the raw material are removed more effectively. According to the warm mixed sulfur asphalt disclosed by the invention, the preparation temperature and the using temperature of the sulfur asphalt are reduced, the generation amount of harmful gas is reduced, and meanwhile, the high-temperature stable property of an asphalt pavement is improved.

Description

technical field [0001] The invention relates to warm-mix asphalt, in particular to warm-mix sulfur asphalt, a mixture containing it and a preparation method thereof, belonging to the fields of petroleum industry and basic material chemistry. Background technique [0002] Due to the increasing number of vehicles in our country and the heavy load of transportation, the phenomenon of rutting and wrapping on asphalt pavement is 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 and service life of asphalt roads. [0003] As far as the cement itself is concerned, the low viscosity of asphalt at 60°C is also one of the reasons for this damage. The 60°C viscosity of asphalt, as one of the indicators to characterize the high-temperature stability of asphalt, can well simulate the anti-flow performance of asphalt pavement wh...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L23/06C08K3/06C04B26/26C10C3/02
CPCC04B26/26C08L95/00C08L2201/08C10C3/02C04B14/28C04B14/14C04B14/048C04B18/12C04B20/008C08L23/06C08K3/06Y02A30/30
Inventor 陈保莲孙剑锋范思远张志银张静宋乐春姚春雷宁爱民李志军程国香
Owner CHINA PETROLEUM & CHEM CORP