客運專線高性能混凝土配合比設計作業(yè)指導.doc

客運專線高性能混凝土配合比設計作業(yè)指導 ，適用于高速鐵路。
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　　　客運專線鐵路混凝土配合比設計作業(yè)指導 中鐵某局聯(lián)合體石太客運專線某標段 項目經(jīng)理部 二OO五年十一月 目錄 1編制目的..........................................................................3 2適用范圍..........................................................................3 3依據(jù)標準..........................................................................3 4原材料的選擇與質(zhì)量要求.....................................................4 4.1水泥............................................................................4 4.2細骨料........................................................................5 4.3粗骨料........................................................................7 4.4水..............................................................................9 4.5外加劑.....................................................................10 4.6摻和料.....................................................................11 5混凝土配合比設計............................................................12 5.1一般規(guī)定.....................................................................12 5.2混凝土配合比設計步驟...................................................18 6混凝土配合比選定試驗......................................................28 6.1試驗前準備..................................................................28 6.2試樣拌制.....................................................................28 6.3拌合物稠度試驗............................................................29 6.4表觀密度試驗...............................................................30 6.5含氣量試驗..................................................................31 6.6凝結時間試驗...............................................................32 6.7泌水率試驗..................................................................33 6.8立方體抗壓強度............................................................35 6.9抗折強度.....................................................................36 6.10劈裂抗拉強度............................................................38 6.11混凝土抗?jié)B性能............................................................39 6.12混凝土收縮值測定.........................................................40 6.13混凝土軸心抗壓強度試驗................................................42 6.14混凝土靜力受壓彈性模量.............................