水泥改善乳化沥青混合料的使用性能

研究了不同水泥掺量对乳化沥青混合料稳定度、抗压强度和抗压回弹模量、抗折强度和抗折回弹模量、高温稳定性、水稳性和低温抗裂性能的影响.使用扫描电镜观察了掺水泥前后乳化沥青胶浆及胶浆与集料界面微观结构的变化.结果表明:随着水泥掺量的增加,乳化沥青混合料的力学性能和路用性能明显提高;水泥水化产物与沥青胶浆形成的复合胶浆增大了沥青胶浆黏度,改善了胶浆与集料界面黏结情况,提高了乳化沥青混合料的使用性能.

Performance of Cement Modified Asphalt Emulsion Mixture

The beneficial effects of cement with different content on performance properties of aspahlt emulsion mixture including Marshall stability,compressive strength and compressive modulus,flexural strength,flexural modules,resistance to permanent deformation,low temperature cracking and water damage,were studied in the laboratory.Scanning electron micro-scope(SEM)was also used to observe the microstructures of asphalt emulsion mastic and interface structure of the mixture with and without cement addition.The st...