Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Temperature-controlled shrinkage-compensating admixture for concrete and application of temperature-controlled shrinkage-compensating admixture
The invention discloses a temperature-controlled shrinkage-compensating admixture for concrete and application thereof, and belongs to the technical field of concrete admixtures. The admixture comprises the following components in percentage by mass: 52%-70% of an expansion component, 8%-13% of a modifier, 10%-15% of a temperature-sensitive controlled release component and 10%-20% of a water retention component; the modifier comprises aluminum phosphate and/or aluminum titanate; the temperature-sensitive controlled release component comprises a hydration heat inhibition component and a temperature-sensitive polymer wrapping the surface of the hydration heat inhibition component, and the temperature-sensitive polymer is formed by polymerizing N-isopropylacrylamide and N, N-dimethylacrylamide. According to the admixture disclosed by the invention, the expansion component compensates shrinkage, the modifier and the temperature-sensitive controlled-release component reduce temperature reduction shrinkage, and the water retention component promotes the closing effect of the temperature-sensitive controlled-release component, so that the concrete shrinkage is effectively reduced, and the generation of cracks is remarkably reduced.
本发明公开了一种混凝土用温控型补偿收缩外加剂及其应用，属于混凝土外加剂技术领域。所述外加剂包括以下质量百分比的各组分：膨胀组分52％～70％、改性剂8％～13％、温敏控释组分10％～15％、保水组分10％～20％；所述改性剂包括磷酸铝和/或钛酸铝；所述温敏控释组分包括水化热抑制组分和包裹在所述水化热抑制组分表面的温敏聚合物，所述温敏聚合物由N‑异丙基丙烯酰胺和N,N‑二甲基丙烯酰胺聚合而成。本发明的外加剂，通过膨胀组分补偿收缩、改性剂和温敏控释组分降低温降收缩、保水组分促进温敏控释组分的关闭效应，从以上方面有效降低混凝土收缩，显著降低裂缝的产生。
Temperature-controlled shrinkage-compensating admixture for concrete and application of temperature-controlled shrinkage-compensating admixture
The invention discloses a temperature-controlled shrinkage-compensating admixture for concrete and application thereof, and belongs to the technical field of concrete admixtures. The admixture comprises the following components in percentage by mass: 52%-70% of an expansion component, 8%-13% of a modifier, 10%-15% of a temperature-sensitive controlled release component and 10%-20% of a water retention component; the modifier comprises aluminum phosphate and/or aluminum titanate; the temperature-sensitive controlled release component comprises a hydration heat inhibition component and a temperature-sensitive polymer wrapping the surface of the hydration heat inhibition component, and the temperature-sensitive polymer is formed by polymerizing N-isopropylacrylamide and N, N-dimethylacrylamide. According to the admixture disclosed by the invention, the expansion component compensates shrinkage, the modifier and the temperature-sensitive controlled-release component reduce temperature reduction shrinkage, and the water retention component promotes the closing effect of the temperature-sensitive controlled-release component, so that the concrete shrinkage is effectively reduced, and the generation of cracks is remarkably reduced.
本发明公开了一种混凝土用温控型补偿收缩外加剂及其应用，属于混凝土外加剂技术领域。所述外加剂包括以下质量百分比的各组分：膨胀组分52％～70％、改性剂8％～13％、温敏控释组分10％～15％、保水组分10％～20％；所述改性剂包括磷酸铝和/或钛酸铝；所述温敏控释组分包括水化热抑制组分和包裹在所述水化热抑制组分表面的温敏聚合物，所述温敏聚合物由N‑异丙基丙烯酰胺和N,N‑二甲基丙烯酰胺聚合而成。本发明的外加剂，通过膨胀组分补偿收缩、改性剂和温敏控释组分降低温降收缩、保水组分促进温敏控释组分的关闭效应，从以上方面有效降低混凝土收缩，显著降低裂缝的产生。
Temperature-controlled shrinkage-compensating admixture for concrete and application of temperature-controlled shrinkage-compensating admixture
一种混凝土用温控型补偿收缩外加剂及其应用
YANG XUEQIANG (Autor:in) / WU CHUNYANG (Autor:in) / GAO JIAN (Autor:in) / YU DONGJIAN (Autor:in) / ZHANG HAOFEI (Autor:in) / GAO YING (Autor:in) / WU YUANJUN (Autor:in) / ZHANG XIAOYUN (Autor:in) / ZHOU YUEXIA (Autor:in) / ZHU GUOJUN (Autor:in)
05.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High performance shrinkage-compensating pc grout admixture
| British Library Conference Proceedings | 1996