水利水电技术2018，Vol.49Issue(3)：170-175,6.DOI:10.13928/j.cnki.wrahe.2018.03.025
水泥砂浆新型涂层磨蚀性能试验研究
Experimental study on abrasion performance of newcoating for cement mortar material
摘要
Abstract
In order to study the influences from sediment characteristics and abrasive angle on the cement mortar materials with or without new type of coating and their mechanisms,the experiment on the abrasion performance of a new type of coating material is made with a self-developed sediment disturber fitted with ultrasonic vibration cavitation device,from which the abrasion degrees of the cement mortar materials with or without the coating under the same abrasion conditions are compared and analyzed,while the abrasion mechanisms of both of them are explored as well.The study shows that the ultrasonic vibration cavitation device is a better testing installation for quick simulation of abrasion.Sediment characteristics and abrasive angle have large influences on the abrasion of the cement mortar material.The abrasion degree of the cement mortar material increases along with the increases of both the sediment particle size and the sand content.When water flow sand content gradually increases and exceeds 100 kg/n3,the increasing trend of the abrasion degree of the cement mortar material is to be alleviated.The cement mortar material exhibits the abrasion characteristics of a typical brittle material.When the abrasive angle is less than 60°,the increasing rate of the abrasion degree of the coating material becomes slower,while the increasing rate is larger,if the abrasive angle exceeds 60°.The abrasion protection effect of the coating material is better for the cement mortar material located in the sediment-laden flow with small particle size,lower sand content and small abrasive angle.关键词
水泥砂浆/试验方法/新型涂层/泥沙特性/磨蚀角度Key words
cement mortar material/experiment method/new type of coating/sediment characteristics/abrasive angle分类
水利科学引用本文复制引用
刘昉,张辉,缑文娟,李会平..水泥砂浆新型涂层磨蚀性能试验研究[J].水利水电技术,2018,49(3):170-175,6.基金项目
国家自然科学基金青年基金项目(51409187) （51409187）
国家自然科学基金项目(51579172) （51579172）
天津市应用基础与前沿技术研究计划(青年项目)(15JCQNJC07100) （青年项目）
