P型大跨度预应力混凝土空心板简介

F-type plastering gypum and its application in engineering

ＳＰ预应力混凝土空心板的增强材料是预应力钢绞线，与用钢筋相比，可节省钢材２０％～５０％；这种板的使用跨度大，最大跨度可达１７．７ｍ；承载能力高，能用于高荷载的仓库等处；产品外形美观，其表面平整度能控制在２ｍｍ以内。本文就其产品特点、生产工艺。

Prestressed strand,as the reinforced material of SP prestressed concrete hollow slab,may save steels on 20%～50% as compared with reinforced bar.This slab has a larger length that the maximum span may be up to 17.7 m,it may be used for heavy load store house owing to its stronger loading capacity,it has artistic form and its surface flatness is less than 2 mm.This article introduces product caracteristics,production process,application prospect and benefit forecast for the slab.