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A platform for research: civil engineering, architecture and urbanism
New concrete pouring construction method suitable for pouring shaped concrete
The invention discloses a new concrete pouring construction method suitable for pouring shaped concrete, which comprises the following steps: S1, sampling old concrete and carrying out a wetting expansion test to obtain an old expansion and shrinkage data set, the old concrete starting to shrink at a first moment; performing a secondary vibration early-stage shrinkage test on the new concrete to obtain a new shrinkage data set; s2, constructing a first relational expression according to the old expansion and shrinkage data set and the new shrinkage data set, wherein the first relational expression can reflect the relationship between the new and old concrete shrinkage difference value and the new concrete pouring moment and time change; s3, according to the first relational expression, obtaining a second pouring moment of the new concrete when the shrinkage difference value of the new concrete and the old concrete is minimum; s4, the old concrete is kept infiltrated, and new concrete is poured at the second moment; drainage of the old concrete begins to shrink at the first moment; and new concrete pouring suitable for old concrete is completed. The method has good applicability.
本发明公开了一种适应浇筑定型混凝土的新混凝土浇筑施工方法，包括以下步骤：S1、对旧混凝土采样进行润湿膨胀试验，得到旧涨缩数据集，其中旧混凝土于第一时刻开始收缩；对新混凝土进行二次振捣早期收缩试验，得到新收缩数据集；S2、根据旧涨缩数据集和新收缩数据集构建第一关系式，第一关系式能够体现新旧混凝土收缩差异值与新混凝土浇筑时刻以及时间变化之间的关系；S3、根据第一关系式得到新旧混凝土收缩差异值取最小值时新混凝土的浇筑时刻第二时刻；S4、使旧混凝土保持浸润，并于第二时刻浇筑新混凝土；于第一时刻使旧混凝土排水开始收缩；完成适应旧混凝土的新混凝土浇筑。本方法具有较好的适用性。
New concrete pouring construction method suitable for pouring shaped concrete
The invention discloses a new concrete pouring construction method suitable for pouring shaped concrete, which comprises the following steps: S1, sampling old concrete and carrying out a wetting expansion test to obtain an old expansion and shrinkage data set, the old concrete starting to shrink at a first moment; performing a secondary vibration early-stage shrinkage test on the new concrete to obtain a new shrinkage data set; s2, constructing a first relational expression according to the old expansion and shrinkage data set and the new shrinkage data set, wherein the first relational expression can reflect the relationship between the new and old concrete shrinkage difference value and the new concrete pouring moment and time change; s3, according to the first relational expression, obtaining a second pouring moment of the new concrete when the shrinkage difference value of the new concrete and the old concrete is minimum; s4, the old concrete is kept infiltrated, and new concrete is poured at the second moment; drainage of the old concrete begins to shrink at the first moment; and new concrete pouring suitable for old concrete is completed. The method has good applicability.
本发明公开了一种适应浇筑定型混凝土的新混凝土浇筑施工方法，包括以下步骤：S1、对旧混凝土采样进行润湿膨胀试验，得到旧涨缩数据集，其中旧混凝土于第一时刻开始收缩；对新混凝土进行二次振捣早期收缩试验，得到新收缩数据集；S2、根据旧涨缩数据集和新收缩数据集构建第一关系式，第一关系式能够体现新旧混凝土收缩差异值与新混凝土浇筑时刻以及时间变化之间的关系；S3、根据第一关系式得到新旧混凝土收缩差异值取最小值时新混凝土的浇筑时刻第二时刻；S4、使旧混凝土保持浸润，并于第二时刻浇筑新混凝土；于第一时刻使旧混凝土排水开始收缩；完成适应旧混凝土的新混凝土浇筑。本方法具有较好的适用性。
New concrete pouring construction method suitable for pouring shaped concrete
一种适应浇筑定型混凝土的新混凝土浇筑施工方法
PENG PENG (author) / ZHOU WEI (author) / XIE YIPING (author) / DENG SHUAI (author) / ZHANG NIJIN (author) / ZENG HUIPING (author) / LUO JIANPING (author) / LIU JUN (author) / OU LIN (author) / CHEN ZHI (author)
2024-07-16
Patent
Electronic Resource
Chinese
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