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A platform for research: civil engineering, architecture and urbanism
Studies on Hydration of Tricalcium Silicate Incorporating Silica Nano-particles
The role of nano-silica during early stage hydration of tricalcium silicate (C3S) has been investigated using w/b ratio 0.4 for the paste and 5.0 for aqueous phase studies. Results of ICP and XRD showed that the stage of supersaturation of Ca2+ is delayed by 30 min and formation of secondary/additional C-S-H starts at the early stages of C3S hydration in the presence of nano silica. At later age of hydration (4–24 h), XRD results show the predominant nucleation effect of nano-silica upto 10 h. The crystalline peak of CH in nano-silica incorporated samples is more intense than the CH peak of pure C3S samples, showing the acceleration in growth of hydrated products. While, at later age i.e. from 15 to 24 h, the intensity of CH peak decreases, due to the pozzolanic effect of nano-silica because in pure C3S samples the intensity of CH peak regularly increase up to 24 h. XRD and FTIR results further reveal that, nano-silica accelerates the formation of crystalline calcium silicate hydrate (C-S-H).
Studies on Hydration of Tricalcium Silicate Incorporating Silica Nano-particles
The role of nano-silica during early stage hydration of tricalcium silicate (C3S) has been investigated using w/b ratio 0.4 for the paste and 5.0 for aqueous phase studies. Results of ICP and XRD showed that the stage of supersaturation of Ca2+ is delayed by 30 min and formation of secondary/additional C-S-H starts at the early stages of C3S hydration in the presence of nano silica. At later age of hydration (4–24 h), XRD results show the predominant nucleation effect of nano-silica upto 10 h. The crystalline peak of CH in nano-silica incorporated samples is more intense than the CH peak of pure C3S samples, showing the acceleration in growth of hydrated products. While, at later age i.e. from 15 to 24 h, the intensity of CH peak decreases, due to the pozzolanic effect of nano-silica because in pure C3S samples the intensity of CH peak regularly increase up to 24 h. XRD and FTIR results further reveal that, nano-silica accelerates the formation of crystalline calcium silicate hydrate (C-S-H).
Studies on Hydration of Tricalcium Silicate Incorporating Silica Nano-particles
Sobolev, Konstantin (editor) / Shah, Surendra P. (editor) / Singh, L. P. (author) / Bhattacharyya, S. K. (author) / Shah, S. P. (author) / Sharma, U. (author)
Nanotechnology in Construction ; Chapter: 18 ; 151-159
2015-01-01
9 pages
Article/Chapter (Book)
Electronic Resource
English
Studies on early stage hydration of tricalcium silicate incorporating silica nanoparticles: Part II
| Online Contents | 2016
Studies on early stage hydration of tricalcium silicate incorporating silica nanoparticles: Part II
| British Library Online Contents | 2016