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  • 重慶混凝土水管蒸汽養護

重慶混凝土水管蒸汽養護

重慶混凝土水管蒸汽養護

       為什么混凝土要進行蒸汽養護

       因為水泥屬于水硬性膠凝材料,水泥的硬化跟溫度和濕度有關。如果硬化太快會導致混凝土成為粉末,尤其是在炎熱的夏天,溫度越高,水化速度越快,混凝土的強度發展也越快。

       鋼筋混凝土結構工程中,房屋框架中的柱子,梁板使用鋼筋混凝土制作而成。由鋼筋混凝土支承建筑物的荷載。

       給混凝土澆水處于潮濕,有利它的便化。根據《混凝土結構工程施工及驗收規范》規定,對已澆注完畢的混凝土,應在12h內加以覆蓋和澆水。

       覆蓋可采用鋸末、塑料薄膜、麻袋片等;澆水養護時間,對于硅酸鹽水泥、普通硅酸鹽水泥或礦渣硅酸鹽水泥拌制的混凝土,澆水養護時間不得少于7晝夜,對摻緩凝型外加劑或有抗滲要求的混凝土不得少于14晝夜。當環境溫度低于4℃時,不得澆水養護。

(此內容由www.kadinask.com提供)
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