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    蘇州混凝土水泥制品研究院有限公司

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    發布時間:2020-01-06 00:00:00
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    再生混凝土配合比設計初探
    2002年第2期
    廢混凝土骨料;再生混凝土;配合比;工作性;強度
    Waste concrete aggregate;Recycled aggregate concrete;Proportion;Workability;Strength
    2002年第2期
    1000-4637(2002)01-07-03
    張亞梅,秦鴻根,孫 偉,郝東明,寧 鐘
    東南大學材料科學與工程系 ,南京 210096

    張亞梅,秦鴻根,孫 偉,郝東明,寧 鐘

    摘 要:通過實驗研究探索了再生混凝土配合比設計的方法, 提出了在普通混凝土配合比設計的基礎上進行廢混凝土骨料的預吸水, 并通過摻加優質粉煤灰、減水劑或二者復合, 可成功地配制同時滿足工作性和強度要求的再生混凝土。 根據這種方法 , 配制的全部使用廢混凝土骨料為粗骨料的再生混凝土28天的抗壓強度高達54.6MPa。

    Abstract: The approach for the proportion design of recycled aggregate concrete is investigated according to the experimental study.It is suggested that the proportion of cement, sand and aggregate can be calculated based on the current proportion design code for ordinary concrete.As regard to the water content, the water adsorption of waste concrete aggregate within certain time period should also be considered and added to the water content calculated according to the code for ordinary concrete .In addition, the using of good quality fly ash and superplasticizer can improve the strength of recycled aggregate concrete.The highest compressive strength of the concrete, in which all aggregate is insteaded by waste concrete aggregate, is up to 54.6MPa at 28days.

    瀏覽量:
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    摘 要:通過實驗研究探索了再生混凝土配合比設計的方法, 提出了在普通混凝土配合比設計的基礎上進行廢混凝土骨料的預吸水, 并通過摻加優質粉煤灰、減水劑或二者復合, 可成功地配制同時滿足工作性和強度要求的再生混凝土。 根據這種方法 , 配制的全部使用廢混凝土骨料為粗骨料的再生混凝土28天的抗壓強度高達54.6MPa。 Abstract: The approach for the proportion design of recycled aggregate concrete is investigated according to the experimental study.It is suggested that the proportion of cement, sand and aggregate can be calculated based on the current proportion design code for ordinary concrete.As regard to the water content, the water adsorption of waste concrete aggregate within certain time period should also be considered and added to the water content calculated according to the code for ordinary concrete .In addition, the using of good quality fly ash and superplasticizer can improve the strength of recycled aggregate concrete.The highest compressive strength of the concrete, in which all aggregate is insteaded by waste concrete aggregate, is up to 54.6MPa at 28days.
    英文名 :
    刊期 : 2002年第2期
    關鍵詞 : 廢混凝土骨料;再生混凝土;配合比;工作性;強度
    Key words : Waste concrete aggregate;Recycled aggregate concrete;Proportion;Workability;Strength
    刊期 : 2002年第2期
    DOI :
    文章編號 : 1000-4637(2002)01-07-03
    基金項目 :
    作者 : 張亞梅,秦鴻根,孫 偉,郝東明,寧 鐘
    單位 : 東南大學材料科學與工程系 ,南京 210096

    張亞梅,秦鴻根,孫 偉,郝東明,寧 鐘

    摘 要:通過實驗研究探索了再生混凝土配合比設計的方法, 提出了在普通混凝土配合比設計的基礎上進行廢混凝土骨料的預吸水, 并通過摻加優質粉煤灰、減水劑或二者復合, 可成功地配制同時滿足工作性和強度要求的再生混凝土。 根據這種方法 , 配制的全部使用廢混凝土骨料為粗骨料的再生混凝土28天的抗壓強度高達54.6MPa。

    Abstract: The approach for the proportion design of recycled aggregate concrete is investigated according to the experimental study.It is suggested that the proportion of cement, sand and aggregate can be calculated based on the current proportion design code for ordinary concrete.As regard to the water content, the water adsorption of waste concrete aggregate within certain time period should also be considered and added to the water content calculated according to the code for ordinary concrete .In addition, the using of good quality fly ash and superplasticizer can improve the strength of recycled aggregate concrete.The highest compressive strength of the concrete, in which all aggregate is insteaded by waste concrete aggregate, is up to 54.6MPa at 28days.

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    引用本文

    摘 要通過實驗研究探索了再生混凝土配合比設計的方法, 提出了在普通混凝土配合比設計的基礎上進行廢混凝土骨料的預吸水, 并通過摻加優質粉煤灰、減水劑或二者復合, 可成功地配制同時滿足工作性和強度要求的再生混凝土。 根據這種方法 , 配制的全部使用廢混凝土骨料為粗骨料的再生混凝土28天的抗壓強度高達54.6MPa。

    Abstract: The approach for the proportion design of recycled aggregate concrete is investigated according to the experimental study.It is suggested that the proportion of cement, sand and aggregate can be calculated based on the current proportion design code for ordinary concrete.As regard to the water content, the water adsorption of waste concrete aggregate within certain time period should also be considered and added to the water content calculated according to the code for ordinary concrete .In addition, the using of good quality fly ash and superplasticizer can improve the strength of recycled aggregate concrete.The highest compressive strength of the concrete, in which all aggregate is insteaded by waste concrete aggregate, is up to 54.6MPa at 28days.

     

    關鍵詞:
    廢混凝土骨料;再生混凝土;配合比;工作性;強度
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