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我校道路与交通工程研究所严家伋副教授等,经过长期研究,完成了第三代的沥青混合料闭式三轴仪压力室的研制工作。去年十一月由上海市高教局主持通过鉴定,到会专家认为仪器技术性能巳达到国内先进水平,并居于领先地位。该仪器的优点是:设计合理、结构简单、操作方便、密封性好,采用无缝甲基丙烯酸甲酯本体聚合管为心座,管壁强度大于20 kgf╱cm~2,与上下凸缘座联系之间采用耐油橡胶密封
After a long period of research, Yan Jiaji, an associate professor at the Institute of Roads and Traffic Engineering in our school, completed the development of the third generation of pressure chamber for the closed triaxial apparatus of asphalt mixture. Last November by the Shanghai Municipal Higher Education Bureau presided over the identification, the experts believe that the technical performance of the instrument has reached the domestic advanced level, and living in a leading position. The instrument has the advantages of reasonable design, simple structure, convenient operation and good sealing property, the seamless polymethylmethacrylate bulk polymerization tube is the heart seat, the wall strength is greater than 20 kgf / cm ~ 2, and the upper and lower flange seats Contact between the use of oil-resistant rubber seal