厦门梧村地下商业街混凝土质量控制

Quality control of concrete for Xiamen WuCun underground business street

厦门梧村地下商业街420m超长顶板,采用跳仓法施工,不留伸缩缝和后浇带,配合比通过掺加大掺量粉煤灰和矿粉,并采用聚羧酸减水剂和优质砂石骨料,控制混凝土温度,重视施工养护工作,达到了减少混凝土收缩,确保工程质量的目的。

The 420 metre supurlong deckplate in Xiamen WuCun underground business street uses alternative bay construction method, does not keep the expansion joint and the latter pouring belt, the mixing propertion through mixes the quantity FLy ash and furnace slag, and uses polycarboxylates admixture and high quality sands and crushed stone, controled concrete temperatuer, paid attention to constructing and maintenance of concrete, then have achieved the goal of reducting concrete shrinkage,guarenteed the structure quality.