FIRE FLAMMABILITY OF POLYMER-MODIFIED CEMENT MORTARS
Polymer-modified cement mortars (PCMs) using three types of polymer (ethylene-vinyl acetate (EVA),vinyl carboxylate-vinyl acetate (VVA) and styrene-butadiene rubber(SBR)) were prepared with three types of water-cement ratio (W/C) (45％,50％,and 60％)and various unit polymer content (UPC) (10 kg/m3,20 kg/m3,30 kg/m3,40 kg/m3,50 kg/m3,and 100 kg/m3),and tests for fire flammability were conducted,i.e. cone calorimeter test andnon-combustibility test according to ISO 5660-1 : 2002 and ISO 1182: 2002,respectively. Theeffect of the polymer types,the UPC content,and the W/C on the fire flammability of PCMsare discussed. The results show that the heating value,the heat release rate and non-combustibility of PCMs largely depend on the polymer types and the increase of the UPCcontent rather than the W/C. In addition,the VVA mortars and the SBR mortars with UPC ofbelow 30 kg/m3,and the EVA mortars with UPC of 40 kg/m3 or less show good non-combustibility.
polymer-modified cement mortar heating value heat release rate non-combustibility temperature rise mass loss
Dedong Wang Takafumi Noguchi Hitoshi Hamasaki Tomohiro Naruse Hironori Nagai
Department of Architecture,The University of Tokyo,Japan Department of Building Materials and Components,Building Research Institute,Japan Building Department,National Institute for Land and Infrastructure,MLIT,Japan
国际会议
The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)
杭州
英文
374-380
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）