Fire-protecting Performance of Polymer-modified Mortars for Buildings
This paper deals with the reaction to the fire tests of polymer-modified mortars, which are performed according to ISO 5660 and ISO 1182. Polymer-modified mortars using a styrene-butadiene rubber (SBR) latex, poly(ethylene-vinyl acetate) (EVA) and polyacrylic ester (PAE) emulsions are prepared with polymer-cement ratios of 0, 5, 10, 15 and 20％, and tested for fire-protecting performance in accordance with ISO 5660 and ISO 1182. As a result, all the polymer-modified mortars with polymer-cement ratios of 5 and 10％ are acceptable as noncombustible materials. EVA- and PAE-modified mortars with a polymer-cement ratio of 15％ are acceptable as noncombustible materials. However, SBR-modified mortar with a polymer-cement ratio of 15％ is not acceptable as a noncombustible material. SBR-, EVA- and PAE-modified mortars with a polymer-cement ratio of 20％ are not acceptable as noncombustible materials. Gradings for fire-preventive materials by both ISO 5660 and ISO 1182 tests of the polymer-modified mortars are almost the same.
polymer-modified mortar polymer-cement ratio cone calorimeter method noncombustibility test
Atsushi Shirai Yoshihiko Ohama Yuuki Kokubun
Faculty of Home Economics, Tokyo Kasei Gakuin University, Machida, 194-0292, Japan Professor Emeritus, Nihon University, Tokyo, 102-8275, Japan ABC Research Laboratory for Building Materials Co., Ltd., Kawagoe, 350-1165, Japan
国际会议
6th Asian Symposium on Polymers in Concrete(第六届亚洲聚合物混凝土国际会议)
上海
英文
507-513
2009-10-29（万方平台首次上网日期，不代表论文的发表时间）