Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cementing microsphere as well as preparation method and application thereof
The invention provides a cementing microsphere as well as a preparation method and application thereof. The cementing microsphere provided by the invention comprises a shell layer and a repairing inner core, the shell layer is a compactly wrapped fiber membrane, and the repairing inner core layer comprises a carbonized cementing material and a carbon dioxide source. When the cemented microspheres are used for carbon dioxide curing and carbonization of a product, the system temperature rises, water evaporates, and the inner layer of the product generates stress; when the fiber membrane is damaged, the carbonized cementing material in the cementing microspheres reacts with carbon dioxide to generate calcium carbonate crystal nucleuses and C-S-H gel with a cementing effect, so that cracks are repaired, and the product is prevented from cracking; and redundant carbon dioxide can also react with a carbonized cementing material in the product, so that the carbonization degree of the product is improved.
本发明提供了一种胶结微球及其制备方法、应用。本发明提供的胶结微球，包括外壳层和修复内核，外壳层为包裹致密的纤维膜，修复内核层包括碳化胶凝材料和二氧化碳源。该胶结微球在二氧化碳养护碳化制品时，系统温度升高，水分蒸发，制品内层产生应力；纤维膜被破坏，胶结微球内部的碳化胶凝材料和二氧化碳反应生成碳酸钙晶核和具有胶结作用的C‑S‑H凝胶，进而修复裂缝，阻止制品开裂；多余的二氧化碳还可以与制品内部的碳化胶凝材料反应，提高制品的碳化程度。
Cementing microsphere as well as preparation method and application thereof
The invention provides a cementing microsphere as well as a preparation method and application thereof. The cementing microsphere provided by the invention comprises a shell layer and a repairing inner core, the shell layer is a compactly wrapped fiber membrane, and the repairing inner core layer comprises a carbonized cementing material and a carbon dioxide source. When the cemented microspheres are used for carbon dioxide curing and carbonization of a product, the system temperature rises, water evaporates, and the inner layer of the product generates stress; when the fiber membrane is damaged, the carbonized cementing material in the cementing microspheres reacts with carbon dioxide to generate calcium carbonate crystal nucleuses and C-S-H gel with a cementing effect, so that cracks are repaired, and the product is prevented from cracking; and redundant carbon dioxide can also react with a carbonized cementing material in the product, so that the carbonization degree of the product is improved.
本发明提供了一种胶结微球及其制备方法、应用。本发明提供的胶结微球，包括外壳层和修复内核，外壳层为包裹致密的纤维膜，修复内核层包括碳化胶凝材料和二氧化碳源。该胶结微球在二氧化碳养护碳化制品时，系统温度升高，水分蒸发，制品内层产生应力；纤维膜被破坏，胶结微球内部的碳化胶凝材料和二氧化碳反应生成碳酸钙晶核和具有胶结作用的C‑S‑H凝胶，进而修复裂缝，阻止制品开裂；多余的二氧化碳还可以与制品内部的碳化胶凝材料反应，提高制品的碳化程度。
Cementing microsphere as well as preparation method and application thereof
一种胶结微球及其制备方法、应用
SUN HAO (Autor:in) / CUI DONGBO (Autor:in) / ZHANG XUELEI (Autor:in) / WANG JIAN (Autor:in) / MU GUANGJIE (Autor:in) / LI ZHIKANG (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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