A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Solid-waste-based high-activity carbon-sequestration low-calcium cementing material and preparation method thereof
The invention discloses a solid-waste-based high-activity carbon-sequestration low-calcium cementing material and a preparation method thereof.The cementing material is prepared from 69-85 parts of calcium waste residues, 7-26 parts of siliceous waste residues and 5-10 parts of iron ore, the cementing material mainly comprises, by weight, 30-55% of gamma-C2S, 30-50% of beta-C2S, 20-10% of C3S and 5-10% of f-CaO, the cementing material is formed by firing at the temperature rise rate of 5-20 DEG C/min at the temperature of 1100-1250 DEG C, then cooling, crushing and ball milling are conducted, and the cementing material is obtained. The solid-waste-based high-activity carbon-sequestration low-calcium cementing material is obtained. The prepared low-calcium cementing material has the excellent characteristics of high activity, easy grinding, early strength, high strength and the like, meanwhile, the material production cost, calcination energy consumption and grinding power consumption are greatly reduced, recycling of various industrial solid wastes is achieved, the problem that the later strength development is too slow due to the fact that the early carbonization rate of the cementing material is too high is solved, and the low-calcium cementing material is suitable for industrial production. And the method has important significance on industrial production of the carbonized and hardened cementing material.
本发明公开一种固废基高活性固碳低钙胶凝材料及其制备方法，该胶凝材料以69～85份钙质废渣、7～26份硅质废渣和5～10份铁矿石为原料，其主要矿物相占比为：γ‑C2S 30～55％、β‑C2S 30～50％、C3S20～10％和f‑CaO 5～10％，以5～20℃/min的升温速率在1100～1250℃内烧制而成，后经冷却、破碎、球磨，得到固废基高活性固碳低钙胶凝材料。本发明制备的低钙胶凝材料，具有活性高、易粉磨、早强高强等优异特性，同时大大降低了材料生产成本、煅烧能耗和粉磨电耗，实现了多种工业固废的再生利用，并解决了胶凝材料因早期碳化速率过快而导致后期强度发展过慢等问题，对碳化硬化胶凝材料的工业化生产具有重要意义。
Solid-waste-based high-activity carbon-sequestration low-calcium cementing material and preparation method thereof
The invention discloses a solid-waste-based high-activity carbon-sequestration low-calcium cementing material and a preparation method thereof.The cementing material is prepared from 69-85 parts of calcium waste residues, 7-26 parts of siliceous waste residues and 5-10 parts of iron ore, the cementing material mainly comprises, by weight, 30-55% of gamma-C2S, 30-50% of beta-C2S, 20-10% of C3S and 5-10% of f-CaO, the cementing material is formed by firing at the temperature rise rate of 5-20 DEG C/min at the temperature of 1100-1250 DEG C, then cooling, crushing and ball milling are conducted, and the cementing material is obtained. The solid-waste-based high-activity carbon-sequestration low-calcium cementing material is obtained. The prepared low-calcium cementing material has the excellent characteristics of high activity, easy grinding, early strength, high strength and the like, meanwhile, the material production cost, calcination energy consumption and grinding power consumption are greatly reduced, recycling of various industrial solid wastes is achieved, the problem that the later strength development is too slow due to the fact that the early carbonization rate of the cementing material is too high is solved, and the low-calcium cementing material is suitable for industrial production. And the method has important significance on industrial production of the carbonized and hardened cementing material.
本发明公开一种固废基高活性固碳低钙胶凝材料及其制备方法，该胶凝材料以69～85份钙质废渣、7～26份硅质废渣和5～10份铁矿石为原料，其主要矿物相占比为：γ‑C2S 30～55％、β‑C2S 30～50％、C3S20～10％和f‑CaO 5～10％，以5～20℃/min的升温速率在1100～1250℃内烧制而成，后经冷却、破碎、球磨，得到固废基高活性固碳低钙胶凝材料。本发明制备的低钙胶凝材料，具有活性高、易粉磨、早强高强等优异特性，同时大大降低了材料生产成本、煅烧能耗和粉磨电耗，实现了多种工业固废的再生利用，并解决了胶凝材料因早期碳化速率过快而导致后期强度发展过慢等问题，对碳化硬化胶凝材料的工业化生产具有重要意义。
Solid-waste-based high-activity carbon-sequestration low-calcium cementing material and preparation method thereof
一种固废基高活性固碳低钙胶凝材料及其制备方法
LIN ZHONGCAI (author) / WANG XIAOLI (author)
2022-05-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
Novel carbon-sequestration low-calcium cementing material and preparation method thereof
| European Patent Office | 2024
Colored low-calcium carbon sequestration cementing material and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2023