| 1. | Scientific research and design institute of cscec in guizhou cooperate with prof . peng xiaoqin , and research the bond technology of the new and old concrete . which are researched to four points as follows : 1 . several major methods evaluating the degree of roughness were analyzed , and their advantages and disadvantages were analyzed 贵州中建建筑科研设计院与重庆大学材料学院彭小芹教授合作,主要对新旧混凝土粘结技术进行了研究,主要集中在以下几个方面: 1 .分析目前常用的几种评价粗糙度的方法,并对每种方法的优缺点进行评述;提出一种简便易行的测量粗糙度的方法,克服目前常用方法的缺点,并通过多组数据和灌砂法进行相关性分析,得出两者之间的关系。 |