水泥与消石灰对沥青胶浆性能影响研究

研究掺加水泥和消石灰对沥青胶浆性能的影响.通过测试不同替换量下掺加水泥和消石灰时沥青胶浆的高温、低温性能和施工性能,发现掺加水泥后胶浆的软化点增加,黏度降低,低温性能得到改善.但是替换量超过60%时,胶浆延度改善幅度降低,因而水泥替换量不宜超过60%;当掺加消石灰时沥青胶浆软化点和黏度显著增大,BBR试验显示低温抗裂性能劣化,但是替换量不超过20%时,对低温性能影响较小.

The Influence of Cement and Hydrated Lime on the Performance of Asphalt Mortar

This paper studies the influence of cement and hydrated lime on performance of asphalt mortar.Through the performance test of mortar in different replacement quantity,it is found that adding cement can increase softening point,viscosity decrease,and low temperature character is improved.But when the displace quantity exceeds by 60%,the improvement extent decreases,so the cement quantity should not exceed by 60%.When adding hydrated lime,the softening point and viscosity of mortar is increased notably,but low temperature performance is deteriorated from the BBR test.But when the quantity of hydrated lime is less than 20%,the influence on low temperature performance is little.