自(zi)應(ying)(ying)力鋼筋混(hun)凝土(tu)壓(ya)力管(RCCP管)有平口式(shi)管和承插(cha)式(shi)管兩種,已(yi)成功(gong)地(di)用(yong)于輸(shu)送水、煤氣和熱(re)(re)電(dian)(dian)廠粉煤灰等。它(ta)與鑄鐵管相(xiang)比(bi)有下(xia)列(lie)優點:剛性好(hao),據(ju)介紹,這(zhe)種管道(dao)在地(di)下(xia)可(ke)使(shi)用(yong)80年以(yi)上(shang);不(bu)導電(dian)(dian),能避免雜(za)散電(dian)(dian)流對(dui)管線的腐蝕;熱(re)(re)導率低(di),外界溫度變化對(dui)管內(nei)影響(xiang)小;長期輸(shu)水內(nei)表面不(bu)長銹瘤,通(tong)(tong)水能力不(bu)變;有裂縫(feng)閉(bi)合和愈合能力,若(ruo)出現寬度小于0.25mm裂紋,在自(zi)壓(ya)應(ying)(ying)力作用(yong)下(xia)能閉(bi)合,通(tong)(tong)常(chang)仍可(ke)作壓(ya)力為(wei)0.6MPa以(yi)內(nei)的輸(shu)水管使(shi)用(yong);鋪設簡便;接(jie)頭密封性好(hao),使(shi)用(yong)可(ke)靠(kao);價格(ge)便宜。缺點是:自(zi)重(zhong)大;性脆、易斷;當輸(shu)送含有面體顆(ke)粒(li)的介質時,耐磨性不(bu)及鑄鐵管。RCCP管的參考(kao)標(biao)準有AWWA C302、AWWA C303等。