A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Liquid carbonization preparation method of high-strength magnesium slag building product
The invention discloses a liquid carbonization preparation method of a high-strength magnesium slag building product. The method comprises the following steps: 1, grinding magnesium slag generated by smelting magnesium through a silicothermic method, chitosan and standard sand in a grinding machine, sieving, and collecting to obtain a screen underflow; 2, mixing and stirring the screen underflow and water for hydration reaction to obtain a mixture; 3, placing the mixture in a mold, vibrating uniformly, placing in a standard curing box for curing, and demolding to obtain a test piece; and 4, placing the test piece in a carbonization box, carrying out medium-high temperature carbonization maintenance under the condition that the volume content of CO2 is 20% or above, then taking out the test piece, and putting the test piece at room temperature until the surface is dry to obtain the magnesium slag building product. Chitosan is adopted as a carbonizer to act with water for medium-high-temperature carbonization maintenance, and the speed and depth of carbonization reaction are promoted and the carbonization efficiency and the carbonization uniformity are improved while liquid carbonization is realized by utilizing the capacity of chitosan for rapidly capturing CO2, so that the compressive strength and the breaking strength of the magnesium slag building product are improved.
本发明公开了一种高强度镁渣建筑制品的液态碳化制备方法，该方法包括：一、将硅热法炼镁镁渣与壳聚糖、标准砂放置于磨机中进行粉磨，过筛后收集得到筛下物；二、将筛下物与水混合搅拌进行水化反应，得到拌合物；三、将拌合物放置于模具中振捣均匀后放置于标养箱中养护，脱模后得到试件；四、将试件放置于碳化箱中，在CO2体积含量20％以上的条件下进行中高温碳化养护，然后取出在室温下放至表干得到镁渣建筑制品。本发明采用壳聚糖作为碳化剂与水作用进行中高温碳化养护，利用壳聚糖对CO2迅速捕集能力，在实现液态碳化的同时，促进了碳化反应的速度和深度，提高了碳化效率以及碳化均匀性，从而提高了镁渣建筑制品的抗压强度和抗折强度。
Liquid carbonization preparation method of high-strength magnesium slag building product
The invention discloses a liquid carbonization preparation method of a high-strength magnesium slag building product. The method comprises the following steps: 1, grinding magnesium slag generated by smelting magnesium through a silicothermic method, chitosan and standard sand in a grinding machine, sieving, and collecting to obtain a screen underflow; 2, mixing and stirring the screen underflow and water for hydration reaction to obtain a mixture; 3, placing the mixture in a mold, vibrating uniformly, placing in a standard curing box for curing, and demolding to obtain a test piece; and 4, placing the test piece in a carbonization box, carrying out medium-high temperature carbonization maintenance under the condition that the volume content of CO2 is 20% or above, then taking out the test piece, and putting the test piece at room temperature until the surface is dry to obtain the magnesium slag building product. Chitosan is adopted as a carbonizer to act with water for medium-high-temperature carbonization maintenance, and the speed and depth of carbonization reaction are promoted and the carbonization efficiency and the carbonization uniformity are improved while liquid carbonization is realized by utilizing the capacity of chitosan for rapidly capturing CO2, so that the compressive strength and the breaking strength of the magnesium slag building product are improved.
本发明公开了一种高强度镁渣建筑制品的液态碳化制备方法，该方法包括：一、将硅热法炼镁镁渣与壳聚糖、标准砂放置于磨机中进行粉磨，过筛后收集得到筛下物；二、将筛下物与水混合搅拌进行水化反应，得到拌合物；三、将拌合物放置于模具中振捣均匀后放置于标养箱中养护，脱模后得到试件；四、将试件放置于碳化箱中，在CO2体积含量20％以上的条件下进行中高温碳化养护，然后取出在室温下放至表干得到镁渣建筑制品。本发明采用壳聚糖作为碳化剂与水作用进行中高温碳化养护，利用壳聚糖对CO2迅速捕集能力，在实现液态碳化的同时，促进了碳化反应的速度和深度，提高了碳化效率以及碳化均匀性，从而提高了镁渣建筑制品的抗压强度和抗折强度。
Liquid carbonization preparation method of high-strength magnesium slag building product
一种高强度镁渣建筑制品的液态碳化制备方法
ZHU MIAOMIAO (author) / CAO JING (author) / SUN YONGMIN (author) / REN PULIANG (author) / LI YAN (author)
2022-01-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
Method for preparing building brick through direct slag carbonization
| European Patent Office | 2015
Light magnesium slag building material and preparation method thereof
| European Patent Office | 2020
Carbonization-resistant alkali slag concrete and preparation method thereof
| European Patent Office | 2024
Carbonization reinforced steel slag concrete and preparation method thereof
| European Patent Office | 2025