高性能与超高性能混凝土管桩的研发与应用

Research and Application on High-performance and Ultra High-performance Concrete Piles

釆用纳米微珠及复合超细粉技术,通过蒸养（85℃,4~5h）获得了抗压强度100~110MPa的高性能混凝土管桩。混凝土的力学性能与耐久性均得到提高,所制管桩的性能优于普通管桩。同时免除了管桩生产过程中的蒸压工艺,使生产成本下降,是一种省资源、省能源、与环境相协调的混凝土低碳技术。

According to nano micro-bead（N-MB） and the technology of composite ultrafine powder,the high-performance concrete piles are prepared with the compressive strength of 100~110MPa by stream curing.The mechanism and durability performance of concrete are improved,and the performances of new prepared piles are better than the original ones.Meanwhile,the new technology can exempt the stream-pressure process in the piles production,which can decrease the production cost,and it＇s a kind of concrete low carbon technology coordinating with the environment.