华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (2): 112-115,124.

• 材料科学与技术 • 上一篇    下一篇

硅皖偶联剂对沥青与石料及水泥胶砂界面的作用

苏达根 何娟 张京锋   

  1. 华南理工大学 特种功能材料教育部重点实验室,广东 广州 510640
  • 收稿日期:2006-01-20 出版日期:2007-02-25 发布日期:2007-02-25
  • 通信作者: 苏达根(1948-),男,教授,博士生导师,主要从事生态环境材料及土木工程材料的研究. E-mail:dgsu@scut. edu. cn
  • 作者简介:苏达根(1948-),男,教授,博士生导师,主要从事生态环境材料及土木工程材料的研究.

Effects of Silane Coupling on Interface Between Asphalt and Granite or Cement Mortar

Su Da-gen  He Juan  Zhang Jing-feng   

  1. Key Laboratory of Specially Functional Materials of the Ministry of Education , South China Univ. of Tech. ,Guangzhou 510640 , Guangdong , China
  • Received:2006-01-20 Online:2007-02-25 Published:2007-02-25
  • Contact: 苏达根(1948-),男,教授,博士生导师,主要从事生态环境材料及土木工程材料的研究. E-mail:dgsu@scut. edu. cn
  • About author:苏达根(1948-),男,教授,博士生导师,主要从事生态环境材料及土木工程材料的研究.

摘要: 把硅烷偶联剂A 的水溶液喷涂于石料及水泥肢砂表面,采用红外光谱分析、强度检验及崭附性实验等方法,研究了硅;比偶联剂对乳化沥青、普通沥青与石料及水泥肢砂界面的作用.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、普通沥青之间的崭黏将0.6% 硅烷偶联剂A 水溶液涂覆到水泥肢砂界面,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衷覆面积、与普通沥青的崭附级数均有提高.

关键词: 沥青, 乳化沥青, 硅烷偶联剂, 界面, 黏附

Abstract:

The water solution of silane coupling A was sprayed to the surfaces of granite and cement mortar , and the effècts of silane coupling on the inte由ces 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 O. 6% silane cou-pling 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.

Key words: asphalt, emulsificated asphalt, silane coupling, interface, cohesion