Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Negative temperature environment concrete structure electrical excitation curing method and curing equipment thereof
The invention discloses a negative temperature environment concrete structure electrical excitation curing method and curing equipment thereof. In the curing process of a concrete structural member in a negative temperature environment, under the cross influence of a high-temperature curing environment in a concrete test piece and an external low-temperature environment, when temperature stress existing inside and outside the concrete structure exceeds the ultimate tensile strength of concrete, the concrete structure is inevitably cracked, and emergency measures for controlling or avoiding cracking are lacked. In the curing process in the negative temperature environment, when the concrete structure is not doped with the conductive filler, the mass transfer control point of the electrically-excited cured concrete test piece is determined according to the ratio of the resistance of the concrete structure to the initial resistance of the concrete structure in the curing process, and when the concrete structure reaches the mass transfer control point, the conductive filler is added to the concrete structure. And starting the adjustment operation of the power-on power of the concrete test piece so as to meet the crack-free electrical excitation curing process required by the curing temperature in the fresh mixing stage and the hardening stage of the concrete structure.
负温环境混凝土结构电激养护方法及其养护设备。在负温环境下混凝土结构件的养护过程中，因混凝土试件内高温养护环境与外界低温环境的交叉影响下，当混凝土结构内、外存在温度应力超过混凝土的极限抗拉强度时，混凝土结构必然开裂，缺少控制或避免开裂的应急措施。本发明在负温环境下的养护过程中，当混凝土结构为未掺加导电填料的混凝土结构时，通过养护过程中混凝土结构电阻与混凝土结构初始电阻的比值确定电激养护混凝土试件的质量转控点，当混凝土结构达到质量转控点时，开启对混凝土试件的通电功率的调节操作，以达到混凝土结构新拌阶段和硬化阶段养护温度要求的无裂缝电激养护过程。
Negative temperature environment concrete structure electrical excitation curing method and curing equipment thereof
The invention discloses a negative temperature environment concrete structure electrical excitation curing method and curing equipment thereof. In the curing process of a concrete structural member in a negative temperature environment, under the cross influence of a high-temperature curing environment in a concrete test piece and an external low-temperature environment, when temperature stress existing inside and outside the concrete structure exceeds the ultimate tensile strength of concrete, the concrete structure is inevitably cracked, and emergency measures for controlling or avoiding cracking are lacked. In the curing process in the negative temperature environment, when the concrete structure is not doped with the conductive filler, the mass transfer control point of the electrically-excited cured concrete test piece is determined according to the ratio of the resistance of the concrete structure to the initial resistance of the concrete structure in the curing process, and when the concrete structure reaches the mass transfer control point, the conductive filler is added to the concrete structure. And starting the adjustment operation of the power-on power of the concrete test piece so as to meet the crack-free electrical excitation curing process required by the curing temperature in the fresh mixing stage and the hardening stage of the concrete structure.
负温环境混凝土结构电激养护方法及其养护设备。在负温环境下混凝土结构件的养护过程中，因混凝土试件内高温养护环境与外界低温环境的交叉影响下，当混凝土结构内、外存在温度应力超过混凝土的极限抗拉强度时，混凝土结构必然开裂，缺少控制或避免开裂的应急措施。本发明在负温环境下的养护过程中，当混凝土结构为未掺加导电填料的混凝土结构时，通过养护过程中混凝土结构电阻与混凝土结构初始电阻的比值确定电激养护混凝土试件的质量转控点，当混凝土结构达到质量转控点时，开启对混凝土试件的通电功率的调节操作，以达到混凝土结构新拌阶段和硬化阶段养护温度要求的无裂缝电激养护过程。
Negative temperature environment concrete structure electrical excitation curing method and curing equipment thereof
负温环境混凝土结构电激养护方法及其养护设备
MA GUOWEI (Autor:in) / LIU YUSHI (Autor:in) / TIAN WEICHEN (Autor:in)
05.04.2022
Patent
Elektronische Ressource
Chinesisch
Concrete structure curing process and spray curing equipment thereof
| Europäisches Patentamt | 2023