污水输送管各种管材比选

8.4 污水输送管各种管材比选8.4 Comparison and Selection of Various Types of Sewage Delivery Tubing 8.4.1排水工程管材8.4.1 Tubing for Drainage Works 目前国内用于排水管道工程的管材有许多种，特别是近几年来随着新技术和新材料的进展，又出现了许多新管材，它们各有特点，各善胜场，运用在排水行业，均有不俗的业绩。In current domestic market, various types of tubing for drainage works are available, especially with the development of new technology and new materials in recent years, many kinds of new tubing are developed, which have different features and advantages and are applied to drainage industry with good performance. 用于排水管道工程的管材主要有：The major tubing applied to drainage pipeline engineering is as follows:  金属管材（主要指钢管、球墨铸铁管、灰口铸铁管等）； Metal tubing (mainly refer to steel tubes, spheroidal graphite iron tubes, gray cast iron tubes etc.); 普通的钢筋混凝土管材（主要指一级、二级离心钢筋混凝土管）； Common reinforced concrete tubing (mainly refer to Grade I and Grade II centrifugal reinforced concrete tubes); 加强的钢筋混凝土管材（主要指三级离心钢筋混凝土管、预应力钢筋混凝管、预应力钢筒混凝土管（简称 PCCP 管））； Enhanced reinforced concrete tubing (mainly refer to Grade III centrifugal concrete tubes, prestressed reinforced concrete tubes, prestressed steel cylinder concrete tubes (PCCP tubes for short));  玻璃钢夹砂管材（主要指缠绕式玻璃钢夹砂管和离心式玻璃钢夹砂管等）； Glass reinforced sand inclusion tubing (mainly refer to spiral wound type glass reinforced sand inclusion tubes and centrifugal glass reinforced sand inclusion tubes etc.) 合成材料管材（主要指 UPVC、UPVC 加强筋管、HDPE管、FRPP 等）等。 Composite material tubing (mainly refer to UPVC, UPVC reinforced tubes, HDPE tubes and FRPP tubes etc.)8.4.2 各种管材的比较8.4.2 Compar...