A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on Multigrade Asphalt Cement (MAC) Application Based on Evotherm Warm-Mixed Asphalt (EWMA) Technology
Multigrade asphalt cement (MAC) is a liquefied binder material by chemical method and is widely applied in heavy traffic pavement environments. Its high construction temperature restricts its application in low temperature. The latest Evotherm product (Evotherm warm-mixed asphalt, EWMA) was added into MAC to produce a composite binder. Dense graded hot-mixed mixture AC-20 was selected as the studied aim, and Marshall method was used when the mixture was designed. MAC added in different dosages of EWMA (EWMA-MAC) and was mixed with aggregate at 180¢C and compacted attemperatures of 155¢C, 140¢C, and 125¢C. The air voids of EWMA-MAC mixture with 0.7% EWMA compacted at 155¢C and 140¢C were very close to those of MAC mixture compacted at 170¢C. Water stability, high and low temperature properties of EWMA-MAC mixture with 0.7% EWMA compacted at 155¢C, 140¢C, and 125¢C were measured and discussed. The field tested results showed that EWMA technology can improve the workability of MAC mixture at low temperature and obtain good early pavement performances.
Research on Multigrade Asphalt Cement (MAC) Application Based on Evotherm Warm-Mixed Asphalt (EWMA) Technology
Multigrade asphalt cement (MAC) is a liquefied binder material by chemical method and is widely applied in heavy traffic pavement environments. Its high construction temperature restricts its application in low temperature. The latest Evotherm product (Evotherm warm-mixed asphalt, EWMA) was added into MAC to produce a composite binder. Dense graded hot-mixed mixture AC-20 was selected as the studied aim, and Marshall method was used when the mixture was designed. MAC added in different dosages of EWMA (EWMA-MAC) and was mixed with aggregate at 180¢C and compacted attemperatures of 155¢C, 140¢C, and 125¢C. The air voids of EWMA-MAC mixture with 0.7% EWMA compacted at 155¢C and 140¢C were very close to those of MAC mixture compacted at 170¢C. Water stability, high and low temperature properties of EWMA-MAC mixture with 0.7% EWMA compacted at 155¢C, 140¢C, and 125¢C were measured and discussed. The field tested results showed that EWMA technology can improve the workability of MAC mixture at low temperature and obtain good early pavement performances.
Research on Multigrade Asphalt Cement (MAC) Application Based on Evotherm Warm-Mixed Asphalt (EWMA) Technology
Sun, Renjuan (author) / Sun, Tongbo (author) / Feng, Ziqiang (author) / Zhou, Zhidong (author)
Geo-Hubei 2014 International Conference on Sustainable Civil Infrastructure ; 2014 ; Yichang, Hubei, China
2014-06-23
Conference paper
Electronic Resource
English
| British Library Conference Proceedings | 2014
Evotherm Warm Mix Asphalt Technology Applied on Ultra-Thin Pavement in China
| British Library Conference Proceedings | 2009
Study on Water Stability of Evotherm® Warm Asphalt Mixture
| Trans Tech Publications | 2013