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田賦都
（中鋼集團天澄環(huán)?？萍脊煞萦邢薰?，武漢430205）[摘要] 分析了鋼管混凝土柱柱芯混凝土施工的特點和難點，采取改進混凝土配合比、設(shè)置混凝土止回閥、泄壓孔等措施，解決了泵送頂升混凝土澆筑的難題，滿足混凝土施工質(zhì)量要求。
[關(guān)鍵詞] 鋼管混凝土柱；混凝土配合比；泵送頂升；止回閥；泄壓孔
中圖分類號：TU528.59 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2011) S2-0496-04Concrete pumping technology of concrete filled steel tube column core
Tian Fudu
( Sinosteel Tiancheng Environmental Protection Science & Technology Co., Ltd., Wuhan 430205, China)Abstract: The characteristics and difficulties in concrete construction of concrete filled steel tube column core were analyzed. Methods such as optimizing concrete mix proportion and supplying concrete check valve and pressure discharge hole can solve the problem of concrete pumping in concrete placement so as to meet the requirements of concrete construction quality.
Keywords: concrete filled steel tube column; micro-expanding concrete; concrete pumping; check valve; pressure discharge hole
