Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Packaging method of inorganic phase change material particles for large-volume high-strength concrete
The invention belongs to the technical field of phase-change material packaging, and particularly provides an inorganic phase-change material particle packaging method for mass high-strength concrete, which comprises the following steps: acidifying and alkalizing diatomite particles; the preparation method comprises the following steps: absorbing a phase-change material into treated diatomite to form a phase-change material/diatomite composite, placing the phase-change material/diatomite composite on qualitative filter paper, and coating the phase-change material/diatomite composite with a film by using graphene oxide to obtain the inorganic phase-change material packaging body coated with the film. The problems that in the application process of existing large-volume high-strength concrete, thermal cracks are prone to occurring, and the usability, the safe bearing capacity, the durability and the service life of components are reduced are solved, hydration heat generated by hydration in the early stage of the prepared packaging body is mostly absorbed by the inorganic shape-stabilized phase-change material, the overall concrete temperature is reduced, the compressive strength is high, and the service life of the components is prolonged. And no obvious crack is generated, and the bonding with a cement stone interface is good.
本发明属于相变材料封装技术领域，具体提供了一种大体积高强混凝土用无机相变材料颗粒封装方法，包括如下步骤：对硅藻土颗粒进行酸化及碱化处理；在处理完成后的硅藻土中吸入相变材料，形成相变材料/硅藻土复合体，将相变材料/硅藻土复合体置于定性滤纸上后，再采用氧化石墨烯进行薄膜包覆，即得带薄膜包覆的无机相变材料封装体；解决了现有大体积高强混凝土在应用过程中，易出现热裂缝，降低构件的使用性能、安全承载能力、耐久性和服役寿命的问题，本发明制得的封装体早期因水化产生的水化热大部分被无机定形相变材料吸收，混凝土温度整体降低，抗压强度高，且无明显裂缝产生，与水泥石界面结合良好。
Packaging method of inorganic phase change material particles for large-volume high-strength concrete
The invention belongs to the technical field of phase-change material packaging, and particularly provides an inorganic phase-change material particle packaging method for mass high-strength concrete, which comprises the following steps: acidifying and alkalizing diatomite particles; the preparation method comprises the following steps: absorbing a phase-change material into treated diatomite to form a phase-change material/diatomite composite, placing the phase-change material/diatomite composite on qualitative filter paper, and coating the phase-change material/diatomite composite with a film by using graphene oxide to obtain the inorganic phase-change material packaging body coated with the film. The problems that in the application process of existing large-volume high-strength concrete, thermal cracks are prone to occurring, and the usability, the safe bearing capacity, the durability and the service life of components are reduced are solved, hydration heat generated by hydration in the early stage of the prepared packaging body is mostly absorbed by the inorganic shape-stabilized phase-change material, the overall concrete temperature is reduced, the compressive strength is high, and the service life of the components is prolonged. And no obvious crack is generated, and the bonding with a cement stone interface is good.
本发明属于相变材料封装技术领域，具体提供了一种大体积高强混凝土用无机相变材料颗粒封装方法，包括如下步骤：对硅藻土颗粒进行酸化及碱化处理；在处理完成后的硅藻土中吸入相变材料，形成相变材料/硅藻土复合体，将相变材料/硅藻土复合体置于定性滤纸上后，再采用氧化石墨烯进行薄膜包覆，即得带薄膜包覆的无机相变材料封装体；解决了现有大体积高强混凝土在应用过程中，易出现热裂缝，降低构件的使用性能、安全承载能力、耐久性和服役寿命的问题，本发明制得的封装体早期因水化产生的水化热大部分被无机定形相变材料吸收，混凝土温度整体降低，抗压强度高，且无明显裂缝产生，与水泥石界面结合良好。
Packaging method of inorganic phase change material particles for large-volume high-strength concrete
一种大体积高强混凝土用无机相变材料颗粒封装方法
LU XI (Autor:in) / WANG WEI (Autor:in) / LI YUETAO (Autor:in) / GAO XIAOJIAN (Autor:in) / REN MIAO (Autor:in) / SU ANSHUANG (Autor:in) / WANG MIAO (Autor:in) / ZHENG JIAN (Autor:in)
30.08.2022
Patent
Elektronische Ressource
Chinesisch
Inorganic composite phase change energy storage concrete material and preparation method thereof
| Europäisches Patentamt | 2024
Volume change of high-strength concrete in moist conditions
| Tema Archiv | 1996
Volume Change of High-Strength Concrete in Moist Conditions
| Online Contents | 1996