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白城水泥管批發生產廠家
更新時間::2022-07-26 16:55:22

  了解白城水泥管之排水管的技術規程,無論生產水泥管還是排水管砂子應符合GB/T14684《建筑用砂》的規定。宜采用細度模數為3.0~2.3的中砂,其含泥量不得大于3%。當采用海砂制作鋼筋混凝土排水管時,其氯鹽含量(以NaCl計)不得大于0.1%。 

  石子應符合GB/T14685《建筑用卵石、碎石》的規定,針片狀顆粒含量不得大于15%,含泥量不得大于1%,泥塊含量不得大于0.5%。2.3.2石子粒徑,對于混凝土管不得大于管壁厚的1/2,對于鋼筋混凝土管不得大于管壁厚的1/3,并不得大于環向鋼筋凈距的3/4。采用懸輥和擠壓工藝時,宜選用粒徑稍小的石子。

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