摘要
把硅烷偶联剂A的水溶液喷涂于石料及水泥胶砂表面,采用红外光谱分析、强度检验及黏附性实验等方法,研究了硅烷偶联剂对乳化沥青、普通沥青与石料及水泥胶砂界面的作用.研究结果表明,经过硅烷偶联剂A处理后的花岗岩、砂粉和水泥净浆粉末的红外图谱均存在明显的CH2吸收带,在表面形成了一层偶联层,此偶联层增强了它们和乳化沥青、普通沥青之间的黏接;将0.6%硅烷偶联剂A水溶液涂覆到水泥胶砂界面,再以乳化沥青和普通沥青连接试件,其28天抗折强度及28天抗拉强度可分别提高20%和60%;花岗岩石料浸泡硅烷偶联剂A水溶液后与乳化沥青的裹覆面积、与普通沥青的黏附级数均有提高.
The water solution of silane coupling A was sprayed to the surfaces of granite and cement mortar, and the effects of silane coupling on the interfaces between asphalt （or emulsificated asphalt） and granite （or cement mortar） were investigated by means of infrared spectrum analyses, strength determination and adhesion tests. The results show that （ 1 ） for the granite, sand powder and cement slurry powder treated by silane coupling A, there appear clear-CH2 absorption bands in the IR spectra as well as coupling layers on the surfaces, which enhance their cohesion with asphalt and emulsificated asphalt; （2） after the coating of cement mortar with 0.6% silane coupling A and after the connection to emulsificated asphalt and asphalt, the 28-day flexural and tensile strengths of the spaceman increase by 20% and 60% respectively; and （3） after the soaking in silane coupling A solution, the granite is of a larger binding area with emulsificated asphalt and an increased cohesiveness grade with asphalt.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第2期112-115,124,共5页
Journal of South China University of Technology(Natural Science Edition)
关键词
沥青
乳化沥青
硅烷偶联剂
界面
黏附
asphalt
emulsificated asphalt
silane coupling
interface
cohesion
