Polyurea coating for foamed concrete panel:An efficient way to resist explosion

作     者：Yi-shun Chen Bo Wang Bei Zhang Qing Zheng Jian-nan Zhou Feng-nian Jin Hua-lin Fan Yi-shun Chen;Bo Wang;Bei Zhang;Qing Zheng;Jian-nan Zhou;Feng-nian Jin;Hua-lin Fan

作者机构：State Key Laboratory for Disaster Prevention&Mitigation of Explosion&ImpactArmy Engineering University of PLANanjing 210007China Research Center of Lightweight Structures and Intelligent ManufacturingState Key Laboratory of Mechanics and Control of Mechanical StructuresNanjing University of Aeronautics and AstronauticsNanjing 210016China State Key Laboratory of Disaster Reduction in Civil EngineeringTongji UniversityShanghai 200092China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2020年第16卷第1期

页      面：136-149页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 

基　　金：Supports from the National Natural Science Foundation of China(11672130,51508567,51478465,and 51308544) the State Key Laboratory of Mechanics and Control of Mechanical Structures(MCMS-0217G03) the State Key Laboratory for Disaster Reduction in Civil Engineering(SLDRCE16-01) 

主　　题：Autoclaved aerated concrete Polyurea Explosion Failure 

摘      要：Autoclaved aerated concrete(AAC) panels have ultra-light weight,excellent thermal insulation and energy absorption,so it is an ideal building material for protective *** improve the blast resistance of the AAC panels,three schemes are applied to strengthen the AAC panels through spraying 4 mm thick polyurea coating from top,bottom and *** three-point bending tests,the polyurea-coated AAC panels have much higher ultimate loads than the un-coated panels,but slightly lower than those strengthened by the carbon fiber reinforced plastics(CEFRPs).Close-in explosion experiments reveal the dynamic strengthening effect of the polyurea *** scaled distances of the strengthened AAC panels are acquired,which are valuable for the engineering application of the AAC panels in the extreme loading *** coatings efficiently enhance the blast resistance of the bottom and double-sided polyurea-coated AAC *** is interesting that the polyurea-coated AAC panels have much more excellent blast resistance than the CFRP reinforced AAC panels,although the latter have better static mechanical properties.