REINFORCING PVA FIBER CONCRETE COMPOSITE AND MANUFACTUARING METHOD THEREOF

摘要

The present invention relates to a poly vinyl alcohol (PVA) fiber reinforced concrete composition and a preparation method thereof, which comprises: 9-20 wt% of cement; 5-10 wt% of water; 30-35 wt% of fine aggregate; 20-45 wt% of coarse aggregate; 6-25 wt% of recycled coarse aggregate; 4-7 wt% of fine powder of blast furnace slag, wherein 0.1-1.5 parts by volume of a PVA fiber is further comprised, based on 100 parts by volume. According to the present invention, weight is reduced, tensile stress and cracking occurring in contraction caused by the drying or freezing of concrete are inhibited, strength and toughness are increased, and resistance to impact, abrasion and fatigue, and durability are enhanced to improve stability and durability of a structure.