A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Super-stable CO2 foam concrete as well as preparation method and application thereof
The invention discloses ultra-stable CO2 foam concrete as well as a preparation method and application thereof, and belongs to the technical field of building materials. The preparation method of the CO2 foam concrete comprises the following steps: mixing a foaming agent with a nano foam stabilizer, and then dissolving the mixture in a calcium hydroxide solution to prepare a foaming solution; the preparation method comprises the following steps: uniformly mixing and stirring red mud, lime and deionized water, sequentially adding slag powder, cement and fly ash, and uniformly stirring to obtain a red mud mixture; preparing foams by using the foaming liquid, and then introducing the foams into the red mud mixture to obtain the CO2 foam concrete. In the invention, the reaction product of the calcium hydroxide solution and CO2 bubbles can significantly improve the stability of CO2 foam, and the red mud and lime can adjust the setting and hardening rate of a matrix, so that the stability reduction of the CO2 foam and the solidification enhancement of a cementing material matrix are finally dynamically balanced, and the stability, strength and thermal insulation performance of the CO2 foam concrete are significantly improved.
本发明公开了一种超稳定CO2泡沫混凝土、其制备方法及应用，属于建筑材料技术领域。所述CO2泡沫混凝土的制备方法如下：将发泡剂与纳米稳泡剂混合，然后将混合物溶解于氢氧化钙溶液中，制备发泡液；将赤泥、石灰与去离子水混合搅拌均匀，再依次加入矿渣粉、水泥、粉煤灰，搅拌均匀，获得赤泥混合物；利用发泡液制备泡沫，然后将泡沫引入赤泥混合物中，获得CO2泡沫混凝土。在本发明中，氢氧化钙溶液与CO2气泡的反应产物能显著提高CO2泡沫的稳定性，赤泥和石灰可以调节基体凝结硬化速率，从而最终使CO2泡沫稳定性消减与胶凝材料基体固化增强达到动态平衡，显著提高了CO2泡沫混凝土的稳定性、强度及保温隔热性能。
Super-stable CO2 foam concrete as well as preparation method and application thereof
The invention discloses ultra-stable CO2 foam concrete as well as a preparation method and application thereof, and belongs to the technical field of building materials. The preparation method of the CO2 foam concrete comprises the following steps: mixing a foaming agent with a nano foam stabilizer, and then dissolving the mixture in a calcium hydroxide solution to prepare a foaming solution; the preparation method comprises the following steps: uniformly mixing and stirring red mud, lime and deionized water, sequentially adding slag powder, cement and fly ash, and uniformly stirring to obtain a red mud mixture; preparing foams by using the foaming liquid, and then introducing the foams into the red mud mixture to obtain the CO2 foam concrete. In the invention, the reaction product of the calcium hydroxide solution and CO2 bubbles can significantly improve the stability of CO2 foam, and the red mud and lime can adjust the setting and hardening rate of a matrix, so that the stability reduction of the CO2 foam and the solidification enhancement of a cementing material matrix are finally dynamically balanced, and the stability, strength and thermal insulation performance of the CO2 foam concrete are significantly improved.
本发明公开了一种超稳定CO2泡沫混凝土、其制备方法及应用，属于建筑材料技术领域。所述CO2泡沫混凝土的制备方法如下：将发泡剂与纳米稳泡剂混合，然后将混合物溶解于氢氧化钙溶液中，制备发泡液；将赤泥、石灰与去离子水混合搅拌均匀，再依次加入矿渣粉、水泥、粉煤灰，搅拌均匀，获得赤泥混合物；利用发泡液制备泡沫，然后将泡沫引入赤泥混合物中，获得CO2泡沫混凝土。在本发明中，氢氧化钙溶液与CO2气泡的反应产物能显著提高CO2泡沫的稳定性，赤泥和石灰可以调节基体凝结硬化速率，从而最终使CO2泡沫稳定性消减与胶凝材料基体固化增强达到动态平衡，显著提高了CO2泡沫混凝土的稳定性、强度及保温隔热性能。
Super-stable CO2 foam concrete as well as preparation method and application thereof
一种超稳定CO2泡沫混凝土、其制备方法及应用
XIONG YUANLIANG (author) / YI YINGJIE (author)
2024-05-24
Patent
Electronic Resource
Chinese
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