Abstract
The asphalt mixture for the impermeable membrane of fill-type dam has to possess such properties as impermeability, flexibility, slope stability and durability. Asbestos fibres have been mainly used to obtain slope stability of this mixture. Because asbestos fibres were proved to be the carcinogenic substance, other kinds of slope flow reducing additives which substitute for asbestos fibres are now urgently required. For this reason, we carried out an experimental study on slope stability, flexibility and durability etc. of asphalt concrete containing some kinds of slope stabilizing additives on the market. From this study, we confirmed that rockwool and cellulose fibres were effective for reducing slope flow as substitutes for asbestos fibres.
