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Carbide slag-based carbonized hardened body material as well as preparation method and application thereof
The invention provides a carbide slag-based carbonized hardened body material as well as a preparation method and application thereof, and belongs to the technical field of carbonized materials. According to the invention, the carbide slag is used as an alkali activator to excite a cementing material to generate a large amount of C-S (A)-H gel cementation phases to improve the strength of a matrix, and the carbide slag is also used as a carbonization reinforcing material to react with carbon dioxide to generate nano calcium carbonate; the nano calcium carbonate and a gelling phase generated by alkali excitation are cemented together to form a compact carbonized layer on the surface layer of the matrix, so that the strength of the block is improved, and the erosion resistance of the block is also improved; meanwhile, an in-situ carbon dioxide source is introduced into the matrix by utilizing an internal carbonization source to improve the internal carbonization degree, so that the internal carbonization degree of the matrix is improved, the carbonization homogeneity of the whole matrix is ensured, and the hardened material prepared by the preparation method has good mechanical properties and 28d compressive strength gt; and the surface quality is good, and the cracking problem is avoided.
本发明提供了一种电石渣基碳化硬化体材料及其制备方法和应用，属于碳化材料技术领域。本发明以电石渣作为碱激发剂激发胶凝材料产生大量C‑S(A)‑H凝胶胶结相来提高基体强度，同时电石渣又作为碳化增强材料与二氧化碳反应生成纳米碳酸钙，这些纳米碳酸钙与碱激发生成的胶凝相胶结在一起在基体表层形成较为致密的碳化层，既提高了块体强度，又提高了其抗侵蚀性；同时利用内部碳化源在基体内部中引入原位二氧化碳源，提高内部碳化程度，从而提高基体内部碳化程度，保证了整个基体的碳化均质性，本发明所制备的硬化体材料具有良好的力学性能，其28d抗压强度>40MPa、表面质量好且无开裂问题发生。
Carbide slag-based carbonized hardened body material as well as preparation method and application thereof
The invention provides a carbide slag-based carbonized hardened body material as well as a preparation method and application thereof, and belongs to the technical field of carbonized materials. According to the invention, the carbide slag is used as an alkali activator to excite a cementing material to generate a large amount of C-S (A)-H gel cementation phases to improve the strength of a matrix, and the carbide slag is also used as a carbonization reinforcing material to react with carbon dioxide to generate nano calcium carbonate; the nano calcium carbonate and a gelling phase generated by alkali excitation are cemented together to form a compact carbonized layer on the surface layer of the matrix, so that the strength of the block is improved, and the erosion resistance of the block is also improved; meanwhile, an in-situ carbon dioxide source is introduced into the matrix by utilizing an internal carbonization source to improve the internal carbonization degree, so that the internal carbonization degree of the matrix is improved, the carbonization homogeneity of the whole matrix is ensured, and the hardened material prepared by the preparation method has good mechanical properties and 28d compressive strength gt; and the surface quality is good, and the cracking problem is avoided.
本发明提供了一种电石渣基碳化硬化体材料及其制备方法和应用，属于碳化材料技术领域。本发明以电石渣作为碱激发剂激发胶凝材料产生大量C‑S(A)‑H凝胶胶结相来提高基体强度，同时电石渣又作为碳化增强材料与二氧化碳反应生成纳米碳酸钙，这些纳米碳酸钙与碱激发生成的胶凝相胶结在一起在基体表层形成较为致密的碳化层，既提高了块体强度，又提高了其抗侵蚀性；同时利用内部碳化源在基体内部中引入原位二氧化碳源，提高内部碳化程度，从而提高基体内部碳化程度，保证了整个基体的碳化均质性，本发明所制备的硬化体材料具有良好的力学性能，其28d抗压强度>40MPa、表面质量好且无开裂问题发生。
Carbide slag-based carbonized hardened body material as well as preparation method and application thereof
一种电石渣基碳化硬化体材料及其制备方法和应用
WANG FAZHOU (Autor:in) / ZHANG WENQIN (Autor:in) / LIU ZHICHAO (Autor:in) / HU SHUGUANG (Autor:in)
12.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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