Zobrazeno 1 - 10
of 41
pro vyhledávání: '"A. A. Jeknavorian"'
Publikováno v:
In Cement and Concrete Research April 2022 154
Publikováno v:
In Cement and Concrete Research 2011 41(12):1289-1309
Publikováno v:
Cement and Concrete Research. 41:1289-1309
Most concrete produced today includes either chemical additions to the cement, chemical admixtures in the concrete, or both. These chemicals alter a number of properties of cementitious systems, including hydration behavior, and it has been long unde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa23ff9f2dd8698271f445257c118aea
https://doi.org/10.1016/j.cemconres.2011.03.005
https://doi.org/10.1016/j.cemconres.2011.03.005
Autor:
Benita Dair, Patrick J. Macuch, Byong-Wa Chun, Charlotte B. Porteneuve, Ara A. Jeknavorian, Debbie Wiebe
Publikováno v:
Applied Biochemistry and Biotechnology. 131:645-658
The present work attempted to utilize xylose by converting it to an aldonic acid. In the present study, xylose was converted to xylonic acid by using commercial glucose oxidase enzyme, palladium catalysis, and microbial bioconversion. The enzyme conv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd3734152143009e0434fe75f46eac51
https://doi.org/10.1385/abab:131:1:645
https://doi.org/10.1385/abab:131:1:645
Autor:
Eugene F. Barry, A.A. Jeknavorian
Publikováno v:
Cement and Concrete Research. 29:899-907
Two methods involving thermal desorption and pyrolysis gas chromatography-mass spectrometry are described for the determination of two durability-enhancing admixtures, a corrosion inhibitor and a shrinkage reducing agent (SRA) in hardened portland ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35c8acbb8d623cb576dabdbe37e94672
https://doi.org/10.1016/s0008-8846(99)00062-9
https://doi.org/10.1016/s0008-8846(99)00062-9
Publikováno v:
Cement and Concrete Research. 28:1335-1345
The pyrolysis of Portland cement followed by gas chromatography/mass spectrometry is described for the determination of chemical additives interground with cement clinkers known as grinding aids. This technique, coupled with in situ derivitization us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49c76f712c858fb39c1d3c087f2bce52
https://doi.org/10.1016/s0008-8846(98)00109-4
https://doi.org/10.1016/s0008-8846(98)00109-4
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 46:85-100
The application of pyrolysis gas chromatography mass spectrometry (py-GC/MS) has been improved for the determination of chemical additives that are either interground with cement clinker during the manufacture of Portland cement or admixed with a mix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7d2368f305c22e40c4236c5664c36b9
https://doi.org/10.1016/s0165-2370(98)00073-4
https://doi.org/10.1016/s0165-2370(98)00073-4
Autor:
Eric Koehler, Ara A. Jeknavorian
Publikováno v:
Journal of Civil Engineering and Architecture. 6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3fb784830beaeb5efc5de2dba74879f
https://doi.org/10.17265/1934-7359/2012.10.001
https://doi.org/10.17265/1934-7359/2012.10.001
Autor:
A. Jeknavorian, E. F. Barry
Publikováno v:
SP-288: Tenth International Conference on Superplasticizers and other Chemical Admixtures.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e672f7681757347ae36561d3390803b
https://doi.org/10.14359/51684227
https://doi.org/10.14359/51684227
Autor:
Philip J. Press, Ara A. Jeknavorian
Publikováno v:
SP-288: Tenth International Conference on Superplasticizers and other Chemical Admixtures.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a69c1cb7c8c207701fb0b29b642bbce
https://doi.org/10.14359/51684228
https://doi.org/10.14359/51684228