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A platform for research: civil engineering, architecture and urbanism
Hydration heat regulation and control type calcium-magnesium composite expanding agent for concrete and preparation method of hydration heat regulation and control type calcium-magnesium composite expanding agent
The invention discloses a hydration heat regulation and control type calcium-magnesium composite expanding agent for concrete and a preparation method of the hydration heat regulation and control type calcium-magnesium composite expanding agent. The hydration heat regulation and control type calcium-magnesium composite expanding agent for concrete comprises the following components: a magnesium expansion component, a calcium expansion component, a hydration heat regulation and control component, a humidity control component and a plasticizing component. The hydration heat regulation and control type calcium-magnesium composite expanding agent is high in expansion energy, long in expansion period and good in temperature suppression effect, can well adapt to temperature and humidity changes in a concrete structure, reduces water loss in the structure, and is matched with temperature changes to compensate shrinkage, so that generation of concrete shrinkage cracks is effectively reduced, and the service life of the concrete is prolonged. Meanwhile, the hydration heat regulation and control component can reduce the internal temperature of the concrete structure, reduce temperature shrinkage and further promote the later shrinkage compensation effect of the low-activity magnesium oxide; meanwhile, the material has good adaptability to cement, has no negative influence on the workability and mechanical properties of concrete, and has good batch engineering application prospects.
本发明公开一种混凝土用水化热调控型钙镁复合膨胀剂及其制备方法。该混凝土用水化热调控型钙镁复合膨胀剂包括以下组分：镁质膨胀组分、钙质膨胀组分、水化热调控组分、控湿组分、增塑组分。本发明的水化热调控型钙镁复合膨胀剂不仅膨胀能高、膨胀周期长、抑温效果好，还能很好地适应混凝土结构内部温度和湿度变化，降低结构内部水分散失，并匹配温度的变化来补偿收缩，有效降低混凝土收缩裂缝的产生，同时该水化热调控组分可减小混凝土结构内部温度，降低温度收缩，并进一步促进低活性氧化镁后期补偿收缩的效果；同时，该材料与水泥适应性良好，对混凝土工作性和力学性能无负面影响，有较好的批量化工程应用前景。
Hydration heat regulation and control type calcium-magnesium composite expanding agent for concrete and preparation method of hydration heat regulation and control type calcium-magnesium composite expanding agent
The invention discloses a hydration heat regulation and control type calcium-magnesium composite expanding agent for concrete and a preparation method of the hydration heat regulation and control type calcium-magnesium composite expanding agent. The hydration heat regulation and control type calcium-magnesium composite expanding agent for concrete comprises the following components: a magnesium expansion component, a calcium expansion component, a hydration heat regulation and control component, a humidity control component and a plasticizing component. The hydration heat regulation and control type calcium-magnesium composite expanding agent is high in expansion energy, long in expansion period and good in temperature suppression effect, can well adapt to temperature and humidity changes in a concrete structure, reduces water loss in the structure, and is matched with temperature changes to compensate shrinkage, so that generation of concrete shrinkage cracks is effectively reduced, and the service life of the concrete is prolonged. Meanwhile, the hydration heat regulation and control component can reduce the internal temperature of the concrete structure, reduce temperature shrinkage and further promote the later shrinkage compensation effect of the low-activity magnesium oxide; meanwhile, the material has good adaptability to cement, has no negative influence on the workability and mechanical properties of concrete, and has good batch engineering application prospects.
本发明公开一种混凝土用水化热调控型钙镁复合膨胀剂及其制备方法。该混凝土用水化热调控型钙镁复合膨胀剂包括以下组分：镁质膨胀组分、钙质膨胀组分、水化热调控组分、控湿组分、增塑组分。本发明的水化热调控型钙镁复合膨胀剂不仅膨胀能高、膨胀周期长、抑温效果好，还能很好地适应混凝土结构内部温度和湿度变化，降低结构内部水分散失，并匹配温度的变化来补偿收缩，有效降低混凝土收缩裂缝的产生，同时该水化热调控组分可减小混凝土结构内部温度，降低温度收缩，并进一步促进低活性氧化镁后期补偿收缩的效果；同时，该材料与水泥适应性良好，对混凝土工作性和力学性能无负面影响，有较好的批量化工程应用前景。
Hydration heat regulation and control type calcium-magnesium composite expanding agent for concrete and preparation method of hydration heat regulation and control type calcium-magnesium composite expanding agent
一种混凝土用水化热调控型钙镁复合膨胀剂及其制备方法
CHENG FUXING (author) / GU ZHENRUI (author) / ZHU LINA (author) / ZHOU YUEXIA (author) / WANG HAI (author) / WANG HAILONG (author) / JI XIANKUN (author)
2023-09-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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