PVA FIBRE REINFORCED CEMENT SHEETS: PRODUCTION AND PROPERTIES
SHEN RONGXI and YANG RUISHAN China Building Materials Academy, Guanzhuang, Beijing 100024, China
ABSTRACT Two kinds of PVA fibres, both high modulus type and modified type, have been used as asbestos alternatives to produce non-asbestos FRC sheets on Hatschek machine. For counteract ing the poor cement retention capacity of these fibres a suitable auxiliary agent was selected. Large size PVA fibre reinforced cement flat sheets were produced successfully by Hatschek process. The properties of these sheets were tested and compared with that of AC sheets and 5% asbestos containing FRC sheets.