三峽工程混凝土的堿-骨料反應(yīng)試驗研究doc(存儲版)
【正文】 的增加而增長的趨勢，至13年齡期時達(dá)到最大值，之后，表3 巖石小棒快速法試驗結(jié)果巖樣編號巖石名稱試件膨脹率(%)評定結(jié)果965296619666966796689671967296739674967596809687黑云斜長片麻巖閃云斜長花崗巖斜閃煌斑巖碎裂化斜長花崗巖碎裂花崗巖斜長花崗巖綠泥石化輝綠巖石英砂巖綠泥石化輝綠巖斑狀二長花崗巖花崗閃長巖綠泥石化輝綠巖非活性非活性非活性非活性非活性非活性非活性非活性非活性非活性非活性非活性表4 砂漿棒快速法試驗結(jié)果巖樣編號巖石名稱試件膨脹率(%)3d7d14d9652966196669667967196729673黑云斜長片麻巖閃云斜長花崗巖斜閃煌斑巖碎裂化斜長花崗巖斜長花崗巖綠泥石化輝綠巖石英砂巖呈現(xiàn)出下降的趨勢，反應(yīng)似乎表現(xiàn)出撏Ｖ蛿?shù)默F(xiàn)象。 砂漿棒快速法 本試驗按美國ASTM C126094方法進(jìn)行。以試件一年齡期的膨脹率作為判斷骨料堿活性的依據(jù)，%時，則骨料判定為潛在有害活性?！?考 文 獻(xiàn)：[1] 劉崇熙，方梓蕓，汪在芹，[M].廣州：化南理工大學(xué)出版社，1999年8月.[2] Gonte B S. An Evaluation of Some Common Indian Rocks with Special Reference to AlkaliAggregate Reaction [J]. Engineering Geology, 1973, (7): 135153.[3] , et of Quartzite and Granite Aggregates Containing Strained Quartz [C]. Proiceeding of the 7th International Conferenceon AlkaliAggregate Reaction in Concrete. 1986, Ⅶ: 428433.[4] GrattanBellew, P. E. Is High Undulatory Extinction in Quartz Indiative of AlkaliExpansivity of Granitic Aggregates [C]. Proceeding of the 7th International Conference on AlkaliAggregate Reaction in Concrete, 1986.[5] Cavalcanti A. J. C. Reaction at Moxoto Dam, Brazil [C]. Proc 7th Int Conf. Ottawa,
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