Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon dioxide mineralization maintenance method for precast concrete component
The invention provides a carbon dioxide mineralization maintenance method for a concrete prefabricated part. The carbon dioxide mineralization maintenance method comprises the following steps: forming holes in a concrete prefabricated part template; preparing pre-treated water-absorbent resin, and attaching the pre-treated water-absorbent resin to the water-permeable template cloth; the water permeable formwork cloth is tightly attached to the inner wall of the concrete prefabricated part formwork, the prepared saturated carbonated water or saturated calcium bicarbonate solution is sprayed to the water permeable formwork cloth, and the water content of the water permeable formwork cloth is controlled to be in an unsaturated state; the stirred concrete is poured on the inner side of the permeable formwork cloth, and vibration, surface finishing and forming are conducted; and introducing industrial waste carbon dioxide gas into the closed curing space. According to the invention, the surface of the concrete can be quickly carbonized, the early surface strength and hardness of the concrete are improved, the compactness of the surface layer of the concrete structure is enhanced, the curing time of the precast concrete component is shortened, and quick demolding of the precast concrete component is realized; and a large amount of industrial solid waste and carbon dioxide industrial waste gas are utilized.
本发明提出了一种混凝土预制构件的二氧化碳矿化养护方法，它包括如下步骤：在混凝土预制构件模板上开孔；制备预处理吸水树脂，将预处理吸水树脂附着在透水模板布上；将透水模板布紧密贴合于混凝土预制构件模板内壁，在透水模板布上喷洒制备好的饱和碳酸水、或饱和碳酸氢钙溶液，并将透水模板布的含水率控制在未饱和状态；在透水模板布内侧浇筑搅拌后的混凝土，振捣、收面成型；在密闭养护空间内通入工业废弃的二氧化碳气体。本发明不仅可以快速地将混凝土表面碳化，提高混凝土早期的表面强度和硬度，增强混凝土结构表层的致密性，缩短混凝土预制构件养护时间，实现混凝土预制构件快速脱模；而且利用了大量的工业固体废弃物和二氧化碳工业废气。
Carbon dioxide mineralization maintenance method for precast concrete component
The invention provides a carbon dioxide mineralization maintenance method for a concrete prefabricated part. The carbon dioxide mineralization maintenance method comprises the following steps: forming holes in a concrete prefabricated part template; preparing pre-treated water-absorbent resin, and attaching the pre-treated water-absorbent resin to the water-permeable template cloth; the water permeable formwork cloth is tightly attached to the inner wall of the concrete prefabricated part formwork, the prepared saturated carbonated water or saturated calcium bicarbonate solution is sprayed to the water permeable formwork cloth, and the water content of the water permeable formwork cloth is controlled to be in an unsaturated state; the stirred concrete is poured on the inner side of the permeable formwork cloth, and vibration, surface finishing and forming are conducted; and introducing industrial waste carbon dioxide gas into the closed curing space. According to the invention, the surface of the concrete can be quickly carbonized, the early surface strength and hardness of the concrete are improved, the compactness of the surface layer of the concrete structure is enhanced, the curing time of the precast concrete component is shortened, and quick demolding of the precast concrete component is realized; and a large amount of industrial solid waste and carbon dioxide industrial waste gas are utilized.
本发明提出了一种混凝土预制构件的二氧化碳矿化养护方法，它包括如下步骤：在混凝土预制构件模板上开孔；制备预处理吸水树脂，将预处理吸水树脂附着在透水模板布上；将透水模板布紧密贴合于混凝土预制构件模板内壁，在透水模板布上喷洒制备好的饱和碳酸水、或饱和碳酸氢钙溶液，并将透水模板布的含水率控制在未饱和状态；在透水模板布内侧浇筑搅拌后的混凝土，振捣、收面成型；在密闭养护空间内通入工业废弃的二氧化碳气体。本发明不仅可以快速地将混凝土表面碳化，提高混凝土早期的表面强度和硬度，增强混凝土结构表层的致密性，缩短混凝土预制构件养护时间，实现混凝土预制构件快速脱模；而且利用了大量的工业固体废弃物和二氧化碳工业废气。
Carbon dioxide mineralization maintenance method for precast concrete component
混凝土预制构件的二氧化碳矿化养护方法
CHEN FEIXIANG (Autor:in) / MING XIN (Autor:in) / ZHANG GUOZHI (Autor:in) / LIU KEXIN (Autor:in) / XIAO JI (Autor:in) / WANG WEIGUANG (Autor:in) / PENG CHENGMING (Autor:in) / ZHENG HEHUI (Autor:in) / TIAN FEI (Autor:in) / LI GANG (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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