Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
All-solid-waste artificial lightweight aggregate based on CO2 mineralization utilization and preparation method of all-solid-waste artificial lightweight aggregate
The invention discloses an all-solid waste artificial lightweight aggregate based on CO2 mineralization utilization and a preparation method thereof.The preparation method comprises the steps that dry materials such as steel slag powder, carbide slag, fly ash, desulfurized gypsum and slag powder are fully mixed and then put into a ball forming mill to obtain an artificial aggregate blank, and then the artificial aggregate blank is sequentially subjected to pre-curing, carbonization treatment and subsequent wet curing; according to the method, industrial solid waste of factories around a steel plant is added into a formula, mineralized active substances are supplemented while the activity of the steel slag is fully excited, and a multi-element solid waste synergistic excitation system is formed. In the preparation process, industrial flue gas is directly used, required equipment is simple, calcination is not needed, and various costs are reduced. According to the prepared artificial aggregate, the apparent carbon sequestration amount is 8-12%, the compressive strength is 3-10 Mpa, the water absorption rate is 7-15%, the apparent carbon sequestration amount is increased, the compressive strength is improved, and the water absorption performance is improved. The artificial aggregate prepared by the method is applicable to but not limited to road engineering, mine filling, thermal insulation materials and the like, and provides technical support for realizing large-scale resource utilization of mineralized products.
本发明公开了一种基于CO2矿化利用的全固废人造轻质骨料及其制备方法，将钢渣粉，电石渣、粉煤灰、脱硫石膏、矿渣粉等干料充分混合后放入成球机得到人造骨料柸体，随后依次进行预养护、碳化处理、后续湿养护。本方法通过在配方中加入钢铁厂周边工厂的工业固废，在充分激发钢渣活性的同时补充矿化活性物质，形成多元固废协同激发体系。在制备过程中直接使用工业烟气，所需设备简单，无需煅烧，降低了各项成本。制得的人造骨料表观固碳量为8‑12％，抗压强度为3‑10Mpa，吸水率为7‑15％，提升了表观固碳量，提升了抗压强度，提升了吸水性能。此方法制备的人造骨料适用但不限于道路工程、矿井充填、保温材料等用途，为实现矿化产物大规模资源化利用提供了技术支撑。
All-solid-waste artificial lightweight aggregate based on CO2 mineralization utilization and preparation method of all-solid-waste artificial lightweight aggregate
The invention discloses an all-solid waste artificial lightweight aggregate based on CO2 mineralization utilization and a preparation method thereof.The preparation method comprises the steps that dry materials such as steel slag powder, carbide slag, fly ash, desulfurized gypsum and slag powder are fully mixed and then put into a ball forming mill to obtain an artificial aggregate blank, and then the artificial aggregate blank is sequentially subjected to pre-curing, carbonization treatment and subsequent wet curing; according to the method, industrial solid waste of factories around a steel plant is added into a formula, mineralized active substances are supplemented while the activity of the steel slag is fully excited, and a multi-element solid waste synergistic excitation system is formed. In the preparation process, industrial flue gas is directly used, required equipment is simple, calcination is not needed, and various costs are reduced. According to the prepared artificial aggregate, the apparent carbon sequestration amount is 8-12%, the compressive strength is 3-10 Mpa, the water absorption rate is 7-15%, the apparent carbon sequestration amount is increased, the compressive strength is improved, and the water absorption performance is improved. The artificial aggregate prepared by the method is applicable to but not limited to road engineering, mine filling, thermal insulation materials and the like, and provides technical support for realizing large-scale resource utilization of mineralized products.
本发明公开了一种基于CO2矿化利用的全固废人造轻质骨料及其制备方法，将钢渣粉，电石渣、粉煤灰、脱硫石膏、矿渣粉等干料充分混合后放入成球机得到人造骨料柸体，随后依次进行预养护、碳化处理、后续湿养护。本方法通过在配方中加入钢铁厂周边工厂的工业固废，在充分激发钢渣活性的同时补充矿化活性物质，形成多元固废协同激发体系。在制备过程中直接使用工业烟气，所需设备简单，无需煅烧，降低了各项成本。制得的人造骨料表观固碳量为8‑12％，抗压强度为3‑10Mpa，吸水率为7‑15％，提升了表观固碳量，提升了抗压强度，提升了吸水性能。此方法制备的人造骨料适用但不限于道路工程、矿井充填、保温材料等用途，为实现矿化产物大规模资源化利用提供了技术支撑。
All-solid-waste artificial lightweight aggregate based on CO2 mineralization utilization and preparation method of all-solid-waste artificial lightweight aggregate
一种基于CO2矿化利用的全固废人造轻质骨料及其制备方法
LIANG BIN (Autor:in) / YUE HAIRONG (Autor:in) / LYU JUNLIN (Autor:in) / MA KUI (Autor:in) / SONG LEI (Autor:in) / ZHOU CHANG'AN (Autor:in) / WANG CHAO (Autor:in)
06.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
CO2 mineralization into waste-valorized lightweight artificial aggregate
| Elsevier | 2023
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022
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| Europäisches Patentamt | 2024