Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Tomotaka Awamura"'
Publikováno v:
Construction and Building Materials. 95:820-831
A chemical model is presented here for investigation of the alkali–silica reaction (ASR) of reactive aggregates. The ASR formation was studied with experiments involving aggregates (Yoro- and Seto-chert) and Ca(OH) 2 with alkalinity under accelerat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2eedce5480e6448ef67a4d187d94740b
https://doi.org/10.1016/j.conbuildmat.2015.07.179
https://doi.org/10.1016/j.conbuildmat.2015.07.179
Publikováno v:
Cement Science and Concrete Technology. 68:22-29
Calcium silicate hydrate is a main product of the hydration of Portland cement and is responsible for the setting and hardening of concrete. To control cement hydration, it is important to understand the mechanism of cement hydration as well as devel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b63baa1fc1a17fcf4f8db5966ec94df
https://doi.org/10.14250/cement.68.22
https://doi.org/10.14250/cement.68.22
Autor:
Tomotaka Awamura, Toyoharu Nawa
Publikováno v:
Cement Science and Concrete Technology. 68:30-37
Long time grinding by planetary ball mill was carried out to get white Portland cement (WPC) samples including high weight fraction of amorphous phases. It was confirmed, from X-ray powder diffraction (XRD)/Rietveld analysis using an internal standar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da6abe1937001d553676b25f7c4d5464
https://doi.org/10.14250/cement.68.30
https://doi.org/10.14250/cement.68.30
Autor:
Toyoharu Nawa, Tomotaka Awamura
Publikováno v:
Cement Science and Concrete Technology. 67:71-78
Calcium silicate, which is main compound of cement takes place the reaction with water topochemically; that is, hydration of calcium silicate proceeds the hydration products such as amorphous calcium silicate hydrate gel (C-S-H gel) and Ca(OH)₂ to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc2628bdcbefce8c95595756ce5cab4e
https://doi.org/10.14250/cement.67.71
https://doi.org/10.14250/cement.67.71
Publikováno v:
Cement Science and Concrete Technology. 66:47-54
It is known from the data of the reaction of tricalcium silicate that it reacts with water in two steps; In the first step, it is dissolved by proton attacking from water and forms an intermediate phase which is converted in the second step into calc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b78740bb5293f037160470ca90d5ff0
https://doi.org/10.14250/cement.66.47
https://doi.org/10.14250/cement.66.47