A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction waste recycled aggregate rapid carbonization method based on organic amine
The invention relates to the technical field of recycled aggregate reinforcement, and discloses an organic amine-based construction waste recycled aggregate rapid carbonization method, which comprises the following steps: immersing a construction waste aggregate containing hardened cement paste into an organic amine solution at a certain temperature to realize organic amine grafting, and then placing the aggregate in an environment containing CO2, in the process that CO2 permeates into the aggregate through pores, due to the existence of organic amine in the pores of the aggregate, gas phase dissolution can be accelerated, especially the dissolution rate of CO2 in a pore solution is increased, and the concentration of CO2 in the pore solution is increased, so that the carbonization rate is increased, the aggregate can be rapidly carbonized, and the problem that organic amine is easy to remove and volatilize is solved through organic amine grafting; the long-term carbonization capability of the aggregate is enhanced, and the carbon sequestration efficiency of the construction waste aggregate is improved.
本发明涉及再生骨料强化技术领域，公开了基于有机胺的建筑垃圾再生骨料快速碳化方法，通过将含有硬化水泥浆的建筑垃圾骨料浸入一定温度的有机胺溶液后实现有机胺接枝，再将该骨料置于含有CO2环境时，CO2通过孔隙渗透到骨料内部的过程中，因骨料孔隙内部有机胺的存在，可加速气相溶解，尤其是提升CO2在孔溶液中溶解速率，增大孔溶液中CO2浓度，从而提升碳化速率，使得骨料能够快速碳化，而有机胺接枝解决了有机胺容易脱出挥发的问题，增强了骨料的长期碳化能力，提升建筑垃圾骨料的固碳效率。
Construction waste recycled aggregate rapid carbonization method based on organic amine
The invention relates to the technical field of recycled aggregate reinforcement, and discloses an organic amine-based construction waste recycled aggregate rapid carbonization method, which comprises the following steps: immersing a construction waste aggregate containing hardened cement paste into an organic amine solution at a certain temperature to realize organic amine grafting, and then placing the aggregate in an environment containing CO2, in the process that CO2 permeates into the aggregate through pores, due to the existence of organic amine in the pores of the aggregate, gas phase dissolution can be accelerated, especially the dissolution rate of CO2 in a pore solution is increased, and the concentration of CO2 in the pore solution is increased, so that the carbonization rate is increased, the aggregate can be rapidly carbonized, and the problem that organic amine is easy to remove and volatilize is solved through organic amine grafting; the long-term carbonization capability of the aggregate is enhanced, and the carbon sequestration efficiency of the construction waste aggregate is improved.
本发明涉及再生骨料强化技术领域，公开了基于有机胺的建筑垃圾再生骨料快速碳化方法，通过将含有硬化水泥浆的建筑垃圾骨料浸入一定温度的有机胺溶液后实现有机胺接枝，再将该骨料置于含有CO2环境时，CO2通过孔隙渗透到骨料内部的过程中，因骨料孔隙内部有机胺的存在，可加速气相溶解，尤其是提升CO2在孔溶液中溶解速率，增大孔溶液中CO2浓度，从而提升碳化速率，使得骨料能够快速碳化，而有机胺接枝解决了有机胺容易脱出挥发的问题，增强了骨料的长期碳化能力，提升建筑垃圾骨料的固碳效率。
Construction waste recycled aggregate rapid carbonization method based on organic amine
基于有机胺的建筑垃圾再生骨料快速碳化方法
LIU TIE (author) / JIANG JUN (author) / JIN CHAO (author) / LU ZHONGYUAN (author) / LI JUN (author) / ZHU QINYE (author) / CHEN JING (author) / WU YANPING (author) / HUANG JINQIAO (author)
2023-03-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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