The improved freeze thaw experiment indicates that this additive can improve the long term anti water ability of acid aggregate asphalt mixture markedly.
Based on a series of tests, it is proved that PA-1 anti-stripping agent can improve the performance of the asphalt mixture including the high and low temperature stability, water stability, fatigue and aging resistance ability by increasing its cohesiveness and making it obtain an larger inner friction angle.
A improved freeze thaw split test was used to evaluate the mixture water sensitivity. The experiments indicated that mixture's split strength was improved markedly than before when the mixture treated with the additive including chromium and also its long term anti stripping property is fine.
It showed that adding TJ-066 anti-stripping agent could increase the adhesion between asphalt and acidic aggregates to grade 5-. It also showed that TJ-066 had good thermal aging property.
At present, dynamic water pressure is the main factor resulting in water damage for the asphalt pavement of the high way, so the adhesion function of asphalt and aggregate should be very strict. A kind of chromium additive was developed. The improved freeze thaw experiment indicates that this additive can improve the long term anti water ability of acid aggregate asphalt mixture markedly. Many researches indicate that the coordinate bond theory is very important for studying the adhesiveness mechanism ...
Based on a series of tests, it is proved that PA-1 anti-stripping agent can improve the performance of the asphalt mixture including the high and low temperature stability, water stability, fatigue and aging resistance ability by increasing its cohesiveness and making it obtain an larger inner friction angle. Compared with several modifiers such as SBS, SBR and EVA, the PA-1 anti-stripping agent is the best one for the engineering applications.
Acidity aggregate has poor bond strength with asphalt and also produce the problem of mixture's serious water sensitivity. In this paper, acidity aggregate was treated with the additive including chromium to improve its bond strength greatly between asphalt and aggregate.A improved freeze thaw split test was used to evaluate the mixture water sensitivity. The experiments indicated that mixture's split strength was improved markedly than before when the mixture treated with the additive including chromium a...