A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a high-rise building foundation mass concrete temperature crack prevention and control method. The high-rise building foundation mass concrete temperature crack prevention and control method comprises the following steps that S1, raw materials are selected; and S2, the concrete raw materials are prepared according to a concrete proportioning principle. According to the high-rise building foundation mass concrete temperature crack prevention and control method, based on the concrete material mixing ratio, as long as an admixture, a retarding water reducing agent and the like are properly selected, the use amount of cement per cubic meter of concrete can be greatly reduced through trial preparation, the highest adiabatic temperature rise of the concrete is reduced, andcracks in the heating stage are fundamentally avoided. The temperature and shrinkage stress are effectively reduced, the cracks are prevented from occurring and extending, the engineering quality isguaranteed, a reasonable temperature measurement means is adopted for providing an adjustment basis for maintenance, a good effect is achieved after foundation concrete pouring is completed, cracks penetrating through concrete do not occur, and even surface cracks are extremely few.
本发明提供一种高层建筑基础大体积混凝土温度裂缝防控方法。所述高层建筑基础大体积混凝土温度裂缝防控方法包括以下步骤：S1.原料的选择；S2.混凝土原料根据混凝土配比原则进行配比。本发明提供的高层建筑基础大体积混凝土温度裂缝防控方法具有从选定混凝土配合比入手，只要对掺合料、缓凝减水剂等选择合适，通过试配完全可以大大降低每立方米混凝土的水泥用量，降低混凝土的最高绝热温升，从根本上解决升温阶段的裂缝产生，有效降低温度和收缩应力，防止裂缝的出现与开展，保证工程质量，采取合理的测温手段为养护提供调整依据，在基础混凝土浇筑完毕后，收到了良好的效果，不但未出现贯穿的混凝、土裂缝，甚至表面裂缝都极少。
The invention provides a high-rise building foundation mass concrete temperature crack prevention and control method. The high-rise building foundation mass concrete temperature crack prevention and control method comprises the following steps that S1, raw materials are selected; and S2, the concrete raw materials are prepared according to a concrete proportioning principle. According to the high-rise building foundation mass concrete temperature crack prevention and control method, based on the concrete material mixing ratio, as long as an admixture, a retarding water reducing agent and the like are properly selected, the use amount of cement per cubic meter of concrete can be greatly reduced through trial preparation, the highest adiabatic temperature rise of the concrete is reduced, andcracks in the heating stage are fundamentally avoided. The temperature and shrinkage stress are effectively reduced, the cracks are prevented from occurring and extending, the engineering quality isguaranteed, a reasonable temperature measurement means is adopted for providing an adjustment basis for maintenance, a good effect is achieved after foundation concrete pouring is completed, cracks penetrating through concrete do not occur, and even surface cracks are extremely few.
本发明提供一种高层建筑基础大体积混凝土温度裂缝防控方法。所述高层建筑基础大体积混凝土温度裂缝防控方法包括以下步骤：S1.原料的选择；S2.混凝土原料根据混凝土配比原则进行配比。本发明提供的高层建筑基础大体积混凝土温度裂缝防控方法具有从选定混凝土配合比入手，只要对掺合料、缓凝减水剂等选择合适，通过试配完全可以大大降低每立方米混凝土的水泥用量，降低混凝土的最高绝热温升，从根本上解决升温阶段的裂缝产生，有效降低温度和收缩应力，防止裂缝的出现与开展，保证工程质量，采取合理的测温手段为养护提供调整依据，在基础混凝土浇筑完毕后，收到了良好的效果，不但未出现贯穿的混凝、土裂缝，甚至表面裂缝都极少。
High-rise building foundation mass concrete temperature crack prevention and control method
一种高层建筑基础大体积混凝土温度裂缝防控方法
LIU DEHUI (author)
2020-10-13
Patent
Electronic Resource
Chinese
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