A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Micro-pore analysis of cement-based materials by means of water vapour sorption isotherms data
Excess Surface Work (ESW) Model, one of the latest analysis theories of the water vapour sorption isotherms, is introduced and used to investigate the micro-pore structure of cement-based materials such as AAC (Autoclaved Aerated Concrete) and hardened cement paste. The specific surface area calculated from water vapour sorption isotherms by ESW model is good agreement with that by BET theory. From the integral plot of ESW model, disjoining pressure by adsorbed water film and the layered structure of tobermorite-1.1 nm were indicated in AAC. Also, it is investigated that C-S-H gel in hcp should have the layered structure like tobermorite-1.1 nm along with the disjoining pressure at higher relative humidity region.
Micro-pore analysis of cement-based materials by means of water vapour sorption isotherms data
Excess Surface Work (ESW) Model, one of the latest analysis theories of the water vapour sorption isotherms, is introduced and used to investigate the micro-pore structure of cement-based materials such as AAC (Autoclaved Aerated Concrete) and hardened cement paste. The specific surface area calculated from water vapour sorption isotherms by ESW model is good agreement with that by BET theory. From the integral plot of ESW model, disjoining pressure by adsorbed water film and the layered structure of tobermorite-1.1 nm were indicated in AAC. Also, it is investigated that C-S-H gel in hcp should have the layered structure like tobermorite-1.1 nm along with the disjoining pressure at higher relative humidity region.
Micro-pore analysis of cement-based materials by means of water vapour sorption isotherms data
Mikroporen-Analyse in Zement-basierten Werkstoffen mittels Wasserdampf-Sorptionsisothermdaten
Matsushita, F. (author) / Aono, Y. (author) / Shibata, S. (author)
2007
11 Seiten, 11 Bilder, 2 Tabellen, 4 Quellen
Conference paper
English
Pore Structure and Moisture Properties of Cement-Based Systems from Water Vapour Sorption Isotherms
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