蚌埠天奥大厦二期工程地下室筏形底板混凝土冬期施工技术

Construction of the Bottom Raft Concrete of the Basement in Winter of Spaceon Mansion (StageⅡ) in Bengbu City

蚌埠天奥大厦二期工程地下室筏形底板大体积混凝土冬期施工中,通过采取增加膨胀加强带、内掺抗渗防冻高效减水剂、掺加粉煤灰、分层浇筑混凝土等措施,降低水化热和改善和易性,达到抗裂防渗的效果,有效保证了混凝土的施工质量。

During the construction of the bottom raft mass concrete of the basement in winter of Spaccon Mansion （Stage Ⅱ ） in Bengbu City, the hydration heat of cement is reduced, the workability is improved, the impervious and frost-preventing results are achieved, and the concrete construction quality is effectively ensured by adding the reinforcing band, adding impervious and frost-preventing water reducing agent, adding flyash and concreting in lifts.