... . Main characteristics:1.Good chemical stability: Alkali-resistant, acid-resistant, waterproof,, cement erosion-resistant, and other chemicals' ... Strength retention rate> 90%, elongation <1%, the durability of more than 50 years.5.Good dimensional stability, stiffness ... as brick, light wood, prefabricated structure) of treatment or caused by a variety of expansion coefficient of wall crack and break .3 ...