Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A rapid method for determining the dosage and cooling range of a viscosity-reducing road warm mix admixture

A technology for temperature reduction range and determination method, which is applied in the direction of measuring devices, material thermal analysis, instruments, etc., can solve the problems of lack of discrimination, not economical, and difficult to achieve the best dosage effect, so as to save the verification process and save Time-consuming and labor-intensive effect

Active Publication Date: 2022-08-09
云南建投路面工程有限公司
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology uses asphalt viscosity reducer in actual construction. Regardless of the type of asphalt, it is directly applied after performance verification with the amount of warm mix agent recommended by the manufacturer and the cooling range. There is no distinction and it is difficult to achieve the best mix. Quantitative effect, and not economical, at the same time, because the verification process is relatively slow, it is not conducive to the improvement of construction efficiency

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
  • A rapid method for determining the dosage and cooling range of a viscosity-reducing road warm mix admixture
  • A rapid method for determining the dosage and cooling range of a viscosity-reducing road warm mix admixture
  • A rapid method for determining the dosage and cooling range of a viscosity-reducing road warm mix admixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The method for quickly obtaining the optimum dosage of the organic viscosity-reducing temperature-mixing agent and the cooling range of the warm-mix asphalt mixture according to the present invention comprises the following steps:

[0035] (1) Preparation of experimental instruments, prepare 600mL beakers, stirring rods, five sets each, oven, holding furnace and electronic balance (accurate to 0.01g), one set;

[0036] (2) 300 g of SBS-modified asphalt heated to 160° C. was weighed in each of five 600-ml beakers. All samples were placed in a holding furnace at 160 ℃ ~ 165 ℃, and 4.5g, 7.5g, 10.5g, 13.5g, 16.5g of organic viscosity reducing and temperature mixing agent A (recommended dosage of 3% to 4%) were added. The interval is 1%, that is, 5 dosage gradients such as 1.5%, 2.5%, 3.5%, 4.5%, and 5.5% are selected for the dosage. During the adding process, stir quickly and evenly, and continue stirring for 8 to 10 minutes after the addition is completed. , so that it i...

Embodiment 2

[0042] The method for quickly obtaining the optimum dosage of the organic viscosity-reducing temperature-mixing agent and the cooling range of the warm-mix asphalt mixture according to the present invention comprises the following steps:

[0043] (1) Preparation of experimental instruments, prepare 600mL beakers, stirring rods, five sets each, oven, holding furnace and electronic balance (accurate to 0.01g), one set;

[0044] (2) Weigh 300 g of the finished high-viscosity asphalt heated to 175° C. in each of five 600-ml beakers. All samples were placed in a holding furnace at 175°C ± 5°C, and 4.5g, 7.5g, 10.5g, 13.5g, 16.5g of organic viscosity-lowering and temperature-reducing agent A (recommended dosage of 3% to 4%) was added, respectively. The interval is 1%, that is, 5 dosage gradients such as 1.5%, 2.5%, 3.5%, 4.5%, and 5.5% are selected for the dosage. During the adding process, stir quickly and evenly, and continue stirring for 8 to 10 minutes after the addition is comple...

Embodiment 3

[0050] The method for quickly obtaining the optimum dosage of the organic viscosity-reducing temperature-mixing agent and the cooling range of the warm-mix asphalt mixture according to the present invention comprises the following steps:

[0051] (1) Preparation of experimental instruments, prepare 600mL beakers, stirring rods, five sets each, oven, holding furnace and electronic balance (accurate to 0.01g), one set;

[0052] (2) 300 g of SBS-modified asphalt heated to 160° C. was weighed in each of five 600-ml beakers. All samples were placed in a holding furnace at 160 ℃ ~ 165 ℃, and 6g, 7.5g, 9g, 10.5g, 12g of organic viscosity-lowering and temperature-reducing agent B were added (recommended dosage 2.5%~3.5%), and the dosage interval was 0.5 %, that is to say, the dosage is selected from 5 dosage gradients such as 2.0%, 2.5%, 3.0%, 3.5%, and 4.0%. During the addition process, stir quickly and evenly. After the addition is completed, continue to stir for 8 to 10 minutes to ...

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 discloses a method for quickly determining the dosage and cooling range of a viscosity-reducing road warm-mix agent, and preparing warm-mix modified asphalt with no less than 5 dosage gradients; , according to the viscosity and toughness index and related indicators to determine the optimal amount of warm mix agent, for the warm mix modified asphalt under the optimal amount of warm mix agent, test the rotational viscosity under no less than 4 temperature conditions, and draw the viscosity- Temperature curve, the temperature corresponding to the viscosity at two points on the viscosity-temperature curve on the viscosity-temperature curve is used as the mixing and compaction temperature of the mixture. According to the fitting results, the warm-mix modified asphalt and the warm-mix asphalt sample raw materials are calculated respectively. The corresponding mixing temperature and compaction temperature, the difference between the two mixing temperatures or the difference between the compaction temperatures is the cooling range. This method is more distinguishable for different asphalt types, saves the time-consuming and laborious verification process, is faster and more practical, and has good construction guidance.

Description

technical field [0001] The invention relates to a rapid test method for the temperature reduction range of a warm mix asphalt pavement, in particular to a rapid determination method for the mixing amount and the temperature reduction range of a viscosity reducing type road warm mix agent. Background technique [0002] Asphalt warm mix technology (WMA, Warm Mix Asphalt) is through the use of specific technologies or additives, so that the mixing and compaction temperature of the mixture during the construction process is between the hot mix asphalt mixture and the cold mix asphalt mixture. It can also ensure that it has the same road performance and construction workability as the hot mix asphalt mixture. Compared with hot mix asphalt, the mixing temperature of WHA can be reduced by 15 to 30 °C, and the CO 2 The emission can be reduced by about 20%, the energy consumption can be reduced by 30-35%, and the emission of other soot can also be reduced by about 40%, which can pro...

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): G01N11/14G01N25/00G16C60/00
CPCG01N11/14G01N25/00G16C60/00Y02A30/30
Inventor 徐志勇戚智勇陈刚钟佑明王思尧高永峰罗春云郭能蒋华祥尹镜刚
Owner 云南建投路面工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com