Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-crack-resistance hydraulic concrete
The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a preparation method of high-crack-resistance hydraulic concrete. The preparation method comprises the following steps: determining the type and dosage of a cementing material based on target hydration heat release characteristics of concrete; based on the target crack resistance of the concrete, determining the activity index and the doping amount of the externally doped magnesium oxide; and preparing the concrete based on the type of the cementing material, the dosage of the cementing material, the activity index of the externally-doped magnesium oxide and the doping amount of the externally-doped magnesium oxide. According to the method, the temperature rise process is adjustable and controllable, the expansion process is adjustable and controllable, the crack resistance of the concrete can be effectively improved, the temperature rise-deformation double-process regulation and control of the concrete are realized by adopting a directional regulation and control technology of a heat release source and a quantitative regulation and control technology of an expansion source, and then the concrete with high crack resistance, high durability and high strength is prepared.
本发明涉及水利水电工程技术领域，具体涉及一种高抗裂水工混凝土的制备方法。该制备方法包括如下步骤：基于混凝土的目标水化放热特征，确定胶凝材料种类及胶凝材料用量；基于混凝土的目标抗裂性能，确定外掺氧化镁活性指数及外掺氧化镁掺量；基于胶凝材料种类、胶凝材料用量、外掺氧化镁活性指数以及外掺氧化镁掺量，配制混凝土。该方法实现了“温升过程可调可控”、“膨胀历程可调可控”，能够有效提升混凝土抗裂性能，通过采用“放热源”的定向调控和“膨胀源”的定量调控技术，实现混凝土温升‑变形的双过程调控，进而制备得到高抗裂、高耐久、高强度的混凝土。
Preparation method of high-crack-resistance hydraulic concrete
The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a preparation method of high-crack-resistance hydraulic concrete. The preparation method comprises the following steps: determining the type and dosage of a cementing material based on target hydration heat release characteristics of concrete; based on the target crack resistance of the concrete, determining the activity index and the doping amount of the externally doped magnesium oxide; and preparing the concrete based on the type of the cementing material, the dosage of the cementing material, the activity index of the externally-doped magnesium oxide and the doping amount of the externally-doped magnesium oxide. According to the method, the temperature rise process is adjustable and controllable, the expansion process is adjustable and controllable, the crack resistance of the concrete can be effectively improved, the temperature rise-deformation double-process regulation and control of the concrete are realized by adopting a directional regulation and control technology of a heat release source and a quantitative regulation and control technology of an expansion source, and then the concrete with high crack resistance, high durability and high strength is prepared.
本发明涉及水利水电工程技术领域，具体涉及一种高抗裂水工混凝土的制备方法。该制备方法包括如下步骤：基于混凝土的目标水化放热特征，确定胶凝材料种类及胶凝材料用量；基于混凝土的目标抗裂性能，确定外掺氧化镁活性指数及外掺氧化镁掺量；基于胶凝材料种类、胶凝材料用量、外掺氧化镁活性指数以及外掺氧化镁掺量，配制混凝土。该方法实现了“温升过程可调可控”、“膨胀历程可调可控”，能够有效提升混凝土抗裂性能，通过采用“放热源”的定向调控和“膨胀源”的定量调控技术，实现混凝土温升‑变形的双过程调控，进而制备得到高抗裂、高耐久、高强度的混凝土。
Preparation method of high-crack-resistance hydraulic concrete
高抗裂水工混凝土的制备方法
LI WENWEI (Autor:in) / LI XINYU (Autor:in) / YANG HUAMEI (Autor:in) / LI SHUGUANG (Autor:in) / ZHANG SIJIA (Autor:in) / LU CHAO (Autor:in)
04.07.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024
High-crack-resistance concrete and preparation method thereof
| Europäisches Patentamt | 2023
High-crack-resistance concrete and preparation method thereof
| Europäisches Patentamt | 2024
High-ultimate-tensile hydraulic anti-crack concrete and preparation method thereof
| Europäisches Patentamt | 2023