Development and Performance Evaluation of ZHWB Asphalt Warm Mix Additive
Warm mix additive is a material that can reduce processing temperature of modified asphalt and mixtures,and is widely used in low-temperature construction of asphalt pavement and plant mixing recycling.This article describes the preparation of warm mix asphalt and mixtures using imidazoline surfactant based oil soluble asphalt warm mix(ZHWB),and tests its performance.The results showed that,at an appropriate dosage,self-developed warm mix agents had little effect on asphalt penetration and softening point,but improved ductility.At the appropriate dosage,self-developed warm mix agent has no adverse effect on road performance of asphalt mixture.When the dosage is high,ZHWB-SX are sensitive to high temperature performance,while ZHWB-QH have little effect.Tests have shown that it can reduce the mixing and forming temperature by 20℃.Therefore,it is determined that imidazoline surfactants can be used as oil soluble warm mix additive,and with reasonable design,they can achieve a usage effect no less than that of amide surfactants warm mix additive.
万方数据
维普
