【摘 要】
：
In this paper,splitting strength and freeze-thaw splitting strength of warm mix asphalt(WMA)are analyzed based on material surface free energy(SFE).Firstly,SFE,polar component and dispersion component
【机 构】
：
College of chemical engineering,China University of Petroleum(Hua Dong),Qingdao Shandong 266555,P.R.
【出 处】
：
2016年交通基础设施和材料国际会议
论文部分内容阅读
In this paper,splitting strength and freeze-thaw splitting strength of warm mix asphalt(WMA)are analyzed based on material surface free energy(SFE).Firstly,SFE,polar component and dispersion component of asphalt with different additives Sasobit(R),anti-stripping agent)are measured through sessile drop method; Secondly,SFE and specific surface area(SSA)of limestone and granite are measured separately by capillary rise method and BET adsorption method; Fatherly,work of adhesion between asphalts and aggregates is calculated; At last,the author analyzes the relationships between SFE,each component,work of adhesion and splitting strength,freeze-thaw splitting strength of mixtures.The results show that: polar component of asphalt and splitting strength is negatively correlated,but dispersion component is positively correlated; and Sasobit(R) makes dispersion component of asphalt reduce,but polar component increase,so splitting strength,freeze-thaw splitting strength of mixtures with Sasobit(R) reduce legitimately; work of adhesion between asphalt and granite is larger than limestone,but the SSA of limestone is 1.4 times than granite,therefore,splitting strength,freeze-thaw splitting strength of mixtures with limestone are larger than granite; with the dosage of Sasobitobi increases,the work of adhesion,splitting strength and freeze-thaw splitting strength of mixtures are changed similarly.
其他文献
As the development of pavement maintenance and rehabilitation,the technologies of recycled asphalt pavement have become increasingly popular due to their advantages on energy conservation and economic
Snow/ice Self-melting pavement is a new kind of pavement with asphalt mixtures containing anti-freeze additives.In this research,three kinds of anti-freeze additives(IB-A,IB-B and IB-C)were applied.IB
For Yingkou Dashiqiao Xiushui line(Yangfang-Gaokan)test road paving concrete actual situation,the finite element mechanics response analysis of four types of heavy traffic asphalt pavement typical str
Through the field test for the noise of anti-sliding and noise-reducing asphalt pavement in the test section and the compare the test results with dense gradation asphalt pavement in the adjacent test
The transport properties of concrete-and mortar are important indicators of their durability,and may be correlated to their resistance to salt scaling.This work aims to optimize the transport properti
This paper explored the gene expression programming(GEP)to model the back-calculation of asphalt pavement structure for surface layer modulus,base modulus and subgrade modulus,and obtained the functio
Basalt fiber reinforced asphalt concrete has better durability,crack resistance and temperature stability than traditional untreated asphalt concrete,being gradually used in pavement engineering in Ch
The objective of this study is to present a systematic laboratory investigation into the static and dynamic modulus of high-modulus asphalt concrete(HMAC).The static moduli of mixtures with different
In this study,a graphene oxide modified pervious concrete was developed by using a low-reactivity,high-calcium fly ash as sole binder,chemical activators and other admixtures.The density,void ratio,me
With the use of snow-thawing salt in the cold winter,asphalt pavement is damaged easily by salt freeze-thaw cycles.The aim of this research is to study the impact of salt freeze-thaw cycles on low tem