Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Crack control method for mass concrete
The invention discloses a crack control method for mass concrete, and relates to the technical field of building construction, and the method comprises the following steps: step 1, material preparation: preparing a concrete raw material, a chemical shrinkage reducing material, an internal curing agent, a shrinkage compensating material and a water evaporation inhibiting material; step 2, stirring: mixing and stirring the concrete raw material, the chemical shrinkage reducing material, the internal curing agent and the shrinkage compensating material to obtain concrete slurry; step 3, laying: pouring and flatly laying the concrete slurry, then spraying a water evaporation inhibition material and carrying out surface plastering treatment to obtain pre-set concrete; and 4, curing: covering the surface of the pre-set concrete with a plastic film, and carrying out standing curing treatment. A chain segment of the chemical reduction material prepared from polyether contains groups such as benzene rings, the rigidity of the chemical reduction material is higher than that of a traditional polycarboxylic acid copolymer, the shrinkage of the chemical reduction material in a cement-based material pore solution is small, the temperature shrinkage and self-shrinkage of concrete are reduced, and the temperature crack risk is reduced.
本申请公开了一种大体积混凝土的裂缝控制方法，涉及建设施工技术领域，包括如下步骤：步骤1、备料：准备混凝土原料、化学减缩材料、内养护剂、补偿收缩材料与水分蒸发抑制材料；步骤2、搅拌：将混凝土原料、化学减缩材料、内养护剂和补偿收缩材料混合搅拌，获得混凝土浆料；步骤3、铺设：将混凝土浆料浇筑铺平整，再喷洒水分蒸发抑制材料以及进行表面抹面处理，获得预凝混凝土；步骤4、养护：将塑料薄膜覆盖在预凝混凝土表面，静置养护处理。本申请通过采用聚醚制备的化学减缩材料链段含有苯环等基团，刚性高于传统的聚羧酸共聚物，在水泥基材料孔溶液中收缩性小，降低混凝土温度收缩和自收缩，降低温度裂缝风险的效果。
Crack control method for mass concrete
The invention discloses a crack control method for mass concrete, and relates to the technical field of building construction, and the method comprises the following steps: step 1, material preparation: preparing a concrete raw material, a chemical shrinkage reducing material, an internal curing agent, a shrinkage compensating material and a water evaporation inhibiting material; step 2, stirring: mixing and stirring the concrete raw material, the chemical shrinkage reducing material, the internal curing agent and the shrinkage compensating material to obtain concrete slurry; step 3, laying: pouring and flatly laying the concrete slurry, then spraying a water evaporation inhibition material and carrying out surface plastering treatment to obtain pre-set concrete; and 4, curing: covering the surface of the pre-set concrete with a plastic film, and carrying out standing curing treatment. A chain segment of the chemical reduction material prepared from polyether contains groups such as benzene rings, the rigidity of the chemical reduction material is higher than that of a traditional polycarboxylic acid copolymer, the shrinkage of the chemical reduction material in a cement-based material pore solution is small, the temperature shrinkage and self-shrinkage of concrete are reduced, and the temperature crack risk is reduced.
本申请公开了一种大体积混凝土的裂缝控制方法，涉及建设施工技术领域，包括如下步骤：步骤1、备料：准备混凝土原料、化学减缩材料、内养护剂、补偿收缩材料与水分蒸发抑制材料；步骤2、搅拌：将混凝土原料、化学减缩材料、内养护剂和补偿收缩材料混合搅拌，获得混凝土浆料；步骤3、铺设：将混凝土浆料浇筑铺平整，再喷洒水分蒸发抑制材料以及进行表面抹面处理，获得预凝混凝土；步骤4、养护：将塑料薄膜覆盖在预凝混凝土表面，静置养护处理。本申请通过采用聚醚制备的化学减缩材料链段含有苯环等基团，刚性高于传统的聚羧酸共聚物，在水泥基材料孔溶液中收缩性小，降低混凝土温度收缩和自收缩，降低温度裂缝风险的效果。
Crack control method for mass concrete
一种大体积混凝土的裂缝控制方法
GONG MINGZI (Autor:in) / LIN YANMEI (Autor:in) / WANG TAO (Autor:in) / RAO XIANPENG (Autor:in) / CHEN CHEN (Autor:in) / SU YIFAN (Autor:in) / SHEN QIANG (Autor:in) / CHEN ZHANHUA (Autor:in) / FANG YUNHUI (Autor:in)
30.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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