Formula and performance test of basalt fiber and basalt mineral powder modified asphalt waterproof sheet
LYU Xicheng
XU Yanting
HUO Jichuan
WANG Ling
Abstract：Determine the effect of formula ratios of softened oil,rubber powder,SBS,and SBR on the basic properties of the modified asphalt through softening point,ductility,and penetration.On this basis,the influence of basalt mineral powder and basalt fiber content on the performance of waterproofing sheet was studied.The results showed that the optimal ratio of waterproof sheet was based on the quality of the base asphalt,softening oil of 25.0％,tire rubber powder of 25.0％,SBS of 4％,SBR of 7％,basalt fiber of 2.5％,and basalt mineral powder ratio to base asphalt of 0.7.The prepared waterproof sheet has an elongation rate of 474％,a viscosity holding time of 49 minutes,a peel strength of 1.20 N/mm between the sheets,and 1.99 N/mm between the sheet and the aluminum plate,low temperature flexibility of-20℃without cracks,heat resistance of 70℃without sliding,oil permeability of 1 sheet,and meets the requirements of GB 23441-2009.
Keywords：basalt fiberbasalt mineral powdermodified asphaltwaterproof sheet
Publication Date：2025-04-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 70-73 )