A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Workability and Crack Recovery Performance Investigation of IPDI Microcapsules–Based Self-Healing Cement Paste
Isophorone diisocyanate (IPDI) was encapsulated successfully within double-layered shells, and final microcapsules showed outstanding self-healing functions in cement paste. The well-dispersed microcapsules had a diameter of , shell thickness of , and core fraction around by weight. The diameters of microcapsules were adjustable by varying agitation rates. The beginning weight-loss temperature of microcapsules was 200°C, implying good thermal stability. The final microcapsules affected slightly the workability and setting time of fresh self-healing cement paste. Although the mechanical strength of hardened self-healing cement paste was decreased with the increase of microcapsule concentrations, the open porosity was improved obviously from 33.5% (control samples) to 31.8% when 5.0% by weight of microcapsules was introduced. The interfaces of microcapsules were compatible enough with cement paste without obvious delamination. Especially, the self-healing cement paste showed outstanding self-healing functions in open air when 10.0% by weight of microcapsules was introduced.
Workability and Crack Recovery Performance Investigation of IPDI Microcapsules–Based Self-Healing Cement Paste
Isophorone diisocyanate (IPDI) was encapsulated successfully within double-layered shells, and final microcapsules showed outstanding self-healing functions in cement paste. The well-dispersed microcapsules had a diameter of , shell thickness of , and core fraction around by weight. The diameters of microcapsules were adjustable by varying agitation rates. The beginning weight-loss temperature of microcapsules was 200°C, implying good thermal stability. The final microcapsules affected slightly the workability and setting time of fresh self-healing cement paste. Although the mechanical strength of hardened self-healing cement paste was decreased with the increase of microcapsule concentrations, the open porosity was improved obviously from 33.5% (control samples) to 31.8% when 5.0% by weight of microcapsules was introduced. The interfaces of microcapsules were compatible enough with cement paste without obvious delamination. Especially, the self-healing cement paste showed outstanding self-healing functions in open air when 10.0% by weight of microcapsules was introduced.
Workability and Crack Recovery Performance Investigation of IPDI Microcapsules–Based Self-Healing Cement Paste
Dawei, Sun (author) / Wenxu, Ma (author) / Jikun, Ma (author) / Qianjin, Mao (author) / Mingzhang, Lan (author) / Ziming, Wang (author) / Shibing, Sun (author) / Yingliang, Tian (author) / Hongxia, Guo (author) / Suping, Cui (author)
2021-04-27
Article (Journal)
Electronic Resource
Unknown
| European Patent Office | 2021
| European Patent Office | 2019
Stimuli responsive workability retention of cement paste containing polycarboxylate superplasticiser
| Online Contents | 2015
| British Library Online Contents | 2014
| British Library Online Contents | 2014