天津宝境栖园地下车库补偿收缩混凝土冬期施工技术措施

Winter construction of shrinkage compensating concrete in Tianjin Baojingxiyuan underground garage

本文介绍了天津宝坻宝境栖园地下车库补偿收缩混凝土冬期施工技术,通过采取掺加HCSA高性能膨胀剂优化混凝土配合比、分层浇筑、加强振捣、注重混凝土保温养护、仔细处理施工缺陷、尽早回浇后浇带和回填土等措施,取得了较好的抗裂防渗效果,对类似地下工程冬期施工具有一定的指导意义。

This paper presents the winter construction technology of underground garage of Tianjin Baodi baojingxiyuan. Good effect of anti-crack &anti-leakage was obtained by optimizing concrete mix proportion, multi-layers method, proper vibration, improving heat-preservation curing, careful treatments to construction defects, and pouring post-pouring belt and backfilling soil as soon as possible. has certain guiding meaning for future similar underground engineering winter construction.In addition, this successful project has been approved of a practical and instructive way to other similar projects