2022 TDA 2-4 COMPLETED
Release time: 2024/07/17 Publisher： original Views：
Mechanical Foaming Warm Mix Asphalt Characteristics and Mixture Performance Improvement and Engineering Demonstration
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Qin Yongchun Research Institute of Highway Ministry of Transport |
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Project Background:
Hot mix asphalt will not only consume large amounts of fuel for heating, but also produce large quantities of greenhouse gases, asphalt fume and other harmful emissions. At present, it is a strategic focus of China and the world to develop the low-carbon economy and low-carbon society. Warm-mix asphalt mixture can greatly reduce the construction temperature by 20℃-40℃. It conforms to the concept of environmental protection, sustainable development or "green construction".
Aims & Goals:
1. To study the characteristics of foamed warm-mix asphalt from different oil sources (including Aramco crude oil), and propose the optimal foaming parameters and production process;
2. To develop new polymer additive to improve the foaming effect of asphalt, and study the migration-wetting behavior of the additive on the interface of foamed asphalt and aggregate;
3. To verify asphalt mixture performance and demonstration.
1. Deveoled a novel polymer based additives contains quaternary ammonium salt, polystyrene butadiene copolymer and fatty acid alcohol amide.
2. Proposed the optimal foaming parameters for different types of asphalt.
3. Completed an expressway demonstration of 17 km mechanical foaming warm mixed asphalt pavement on the Anhui Provincial.
PAPER 1: 'Rheological Properties of Warm Mixed Asphalt'
2023 International Conference on Materials Engineering And Applied Mechanics, 2023,2553: 012009.
PAPER 2: 'Effect of Warm Mix Agent on the Chemo-Mechanical Performance of Binder with Different Oil Sources' (filed)
PATENT 1: Activator for in-place foamed warm regeneration mixture, foamed warm regeneration mixture and its preparation method (filed)
DEMONSTRATION 1：Warm mix asphalt by mechanical foaming technology is used for the G216 line in Xinjiang province.
DEMONSTRATION 2：Warm mix asphalt by mechanical foaming technology is used for highway in Anhui province.
PAPER 2: 'Effect of Warm Mix Agent on the Chemo-Mechanical Performance of Binder with Different Oil Sources' (filed)
PATENT 1: Activator for in-place foamed warm regeneration mixture, foamed warm regeneration mixture and its preparation method (filed)
DEMONSTRATION 1：Warm mix asphalt by mechanical foaming technology is used for the G216 line in Xinjiang province.
DEMONSTRATION 2：Warm mix asphalt by mechanical foaming technology is used for highway in Anhui province.
