大体积新老砼接缝外表面质量缺陷预防技术研究

The mass concrete of new and old concrete joint surface quality defects prevention technology research

在一些国家重点大型混凝土涵洞或墙体施工中,常规施工方法在新老混凝土接缝部位易产生烂根、错台、漏浆、挂帘、麻面等外观质量通病,既影响美观也降低了砼耐久性。通过本项技术研究,可有效预防混凝土常见外观质量通病。

Mainly large-scale concrete culvert and wall construction in some countries,the conventional construction method the construction in the new and old concrete joint parts easy to produce roots rotted,wrong Taiwan,slurry,hang curtain,pits,such as appearance quality common failing,which affected the beautiful, also reduces the durability of concrete.Through the use of this technology research, to be effective in preventing more than common concrete appearance quality common fault.