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A platform for research: civil engineering, architecture and urbanism
Activated modified regenerated micro powder as well as preparation method and application thereof
The invention discloses activated modified regenerated micro powder as well as a preparation method and application thereof. The preparation method of the activated and modified regenerated micro-powder comprises the following steps: dispersing regenerated micro-powder and an active catalyst into water to obtain a suspension; and continuously introducing gas containing carbon dioxide into the suspension to induce the regenerated micro-powder to be subjected to carbonization reaction, and after the reaction is completed, carrying out suction filtration and drying to obtain the activated modified regenerated micro-powder. The hydration activity of the regenerated micro-powder is improved by means of calcium carbonate and silica gel generated by carbonization reaction, and meanwhile, the active catalyst is introduced to promote the carbonization reaction, so that the regenerated micro-powder replaces cement to be applied to a cement concrete system and has higher strength, and the purpose of replacing cementing materials such as cement in a large mixing amount is achieved.
本发明公开一种活化改性再生微粉及其制备方法和应用。该活化改性再生微粉的制备方法，包括以下步骤：将再生微粉和活性催化剂分散至水中，获得悬浮液；向悬浮液中持续通入含二氧化碳气体诱导再生微粉发生碳化反应，待反应完成后，经抽滤、烘干得到活化改性再生微粉。本发明借助碳化反应生成的碳酸钙和硅胶，提高再生微粉的水化活性，同时引入活性催化剂促进碳化反应，使得再生微粉替代水泥应用于水泥混凝土体系中具有更高的强度，实现大掺量取代水泥等胶凝材料的目的。
Activated modified regenerated micro powder as well as preparation method and application thereof
The invention discloses activated modified regenerated micro powder as well as a preparation method and application thereof. The preparation method of the activated and modified regenerated micro-powder comprises the following steps: dispersing regenerated micro-powder and an active catalyst into water to obtain a suspension; and continuously introducing gas containing carbon dioxide into the suspension to induce the regenerated micro-powder to be subjected to carbonization reaction, and after the reaction is completed, carrying out suction filtration and drying to obtain the activated modified regenerated micro-powder. The hydration activity of the regenerated micro-powder is improved by means of calcium carbonate and silica gel generated by carbonization reaction, and meanwhile, the active catalyst is introduced to promote the carbonization reaction, so that the regenerated micro-powder replaces cement to be applied to a cement concrete system and has higher strength, and the purpose of replacing cementing materials such as cement in a large mixing amount is achieved.
本发明公开一种活化改性再生微粉及其制备方法和应用。该活化改性再生微粉的制备方法，包括以下步骤：将再生微粉和活性催化剂分散至水中，获得悬浮液；向悬浮液中持续通入含二氧化碳气体诱导再生微粉发生碳化反应，待反应完成后，经抽滤、烘干得到活化改性再生微粉。本发明借助碳化反应生成的碳酸钙和硅胶，提高再生微粉的水化活性，同时引入活性催化剂促进碳化反应，使得再生微粉替代水泥应用于水泥混凝土体系中具有更高的强度，实现大掺量取代水泥等胶凝材料的目的。
Activated modified regenerated micro powder as well as preparation method and application thereof
一种活化改性再生微粉及其制备方法和应用
LIU ZHICHAO (author) / XIE DAMING (author) / REN XU (author) / WANG FAZHOU (author) / HU SHUGUANG (author)
2024-02-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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