CRTS Ⅰ型水泥乳化沥青砂浆的力学性能试验研究  

Experimental study on mechanical performance of CRTS-Ⅰ type cement emulsified asphalt mortar

作　　者：吴韶亮[1] 李海燕[1] 邵丕彦[1] 王涛[1] 贾恒琼[1] 

机构地区：[1]中国铁道科学研究院金属及化学研究所,北京100081

出　　处：《铁道建筑》2012年第12期129-132,共4页Railway Engineering

基　　金：铁道部科技研究开发项目(2007G044-K-1)

摘　　要：对CRTS Ⅰ型水泥乳化沥青砂浆的常规力学性能、长期力学性能、应力应变特性、应力缓冲性能和应力应变响应等性能进行了研究。结果表明,该砂浆可以在5℃～40℃温度范围内满足规定的力学性能要求;3年后砂浆的抗压强度约增加50%,弹性模量增长10%左右,仍在100～300 MPa范围之内;砂浆的应力—应变曲线表明该砂浆具有较好的延展性和韧性;砂浆的应力缓冲性能和应力应变响应表明砂浆具备典型的粘弹性特征,且随着沥青含量的增加,粘弹性特征愈加明显。This paper studied the mechanical properties of CRTS-I cement emulsified asphalt mortar,such as conventional mechanical properties,long-term mechanical properties,stress-strain behavior,stress buffer performance and stress-strain response.The results showed that the mortar can meet the specified mechanical performance requirements in temperature range of 5 ℃～40 ℃,the compressive strength of the mortar increased by about 50% after 3 years,the elastic modulus increased by about 10%,which is still within the range 100～300 MPa,the stress-strain curves indicated the good ductility and toughness of mortar,the stress buffer performance and stress-strain response showed the typical viscoelastic characteristics of mortar,and the viscoelastic characteristics becomes more obvious with the asphalt content increasing.

关 键 词：板式无砟轨道 水泥乳化沥青砂浆 力学性能 应力缓冲性能 应力应变响应 

分 类 号：TU578.1[建筑科学—建筑技术科学]