Experiment of anti-seepage behavior of polypropylene
fiber reinforced mortar
1.School of Civil Engineering, Guangzhou University, Guangzhou, Guangdong 510006, China; 2.Guangxi Branch Company of First Construction Engineering Co., Ltd of 3rd Bureau CSCEC, Nanning, Guangxi 530012, China; 3.Guangzhou Municipal Construction Group Co., Ltd, Guangzhou, Guangdong 510030, China
Abstract：To investigate the antiseepage behavior of polypropylene fiber reinforced mortar, the experiments of construction performance and mechanical properties of consistency, stratification, apparent density, setting time, compressive strength, flexural strength, tensile and adhesion strength, alkali resistance, heat resistance, water absorption rate, drying shrinkage rate and impermeability pressure were conducted. The quality benchmark ratio（Mf） of polypropylene fiber was ranged from 0 to 0.900%. The experimental results show that with the increasing of Mf, consistency, stratification and adhesion strength of polypropylene fiber reinforced mortar are decreased, and flexural strength increases first with later decreasing, while the water absorption rate and drying shrinkage rate decrease first with later increasing. The impermeability of mortar is obviously improved when Mf increases from 0 to 0.450%, and the impermeability of mortar is reduced gradually when Mf increases from 0.450% to 0.900%.
2014, Vol. 35 
