db21t 2441-2015 遼寧省水利工程質量檢測管理規(guī)范

1、ICS93.010P4043DB21遼寧省地方標準DB21T2441—2015嚴寒地區(qū)預制混凝土U型槽及應用技術規(guī)程TechnicalspecificationfUtypeconcretegrooveprefabricatingapplicationinseverecoldarea20150301發(fā)布20150501實施遼寧省質量技術監(jiān)督局發(fā)布DB21T2441—2015I目次前言............................

2、....................................................III1總則................................................................................12規(guī)范性引用文件......................................................................13術

3、語................................................................................14代號、標記、規(guī)格尺寸................................................................25原材料..........................................................

4、....................35.1水泥............................................................................35.2細骨料..........................................................................35.3粗骨料..............................

5、............................................35.4摻合料..........................................................................35.5外加劑..........................................................................35.6水.........

6、.....................................................................36基本規(guī)定............................................................................46.1預制混凝土U型槽生產的一般要求..................................................

7、46.2外形尺寸........................................................................46.3外觀質量........................................................................46.4預制混凝土U型槽的混凝土抗壓強度等級不應低于C20。..............................

8、46.5預制混凝土U型槽抗?jié)B性..........................................................46.6預制混凝土U型槽抗凍性..........................................................46.7外壓力破壞荷載、內壓力破壞荷載..................................................57試驗方

9、法............................................................................57.1尺寸偏差........................................................................57.2外觀質量檢驗.....................................................

10、...............57.3抗壓強度........................................................................57.4預制混凝土U型槽抗?jié)B性..........................................................57.5預制混凝土U型槽抗凍性.....................................

11、.....................57.6外壓力破壞荷載、內壓力破壞荷載..................................................68檢驗規(guī)則............................................................................68.1出廠檢驗........................................

12、................................68.2型式檢驗........................................................................69出廠、運輸和保管....................................................................79.1出廠證明......................