Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Andrew C. Jupe"'
Publikováno v:
Cement and Concrete Research. 42:1083-1087
The hydration of tricalcium silicate (C{sub 3}S) is accelerated by pressure. However, the extent to which temperature and/or cement additives modify this effect is largely unknown. Time-resolved synchrotron powder diffraction has been used to study c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6111e813fba7b5229f24ce9e7620048c
https://doi.org/10.1016/j.cemconres.2012.04.008
https://doi.org/10.1016/j.cemconres.2012.04.008
Publikováno v:
Cement and Concrete Research. 42:1166-1173
A sample cell for the simultaneous measurement of synchrotron X-ray powder diffraction and ultrasound shear-wave reflection data from cement slurries is described. White cement slurries at 25 and 50 C with 0-3% bwoc CaCl{sub 2} were studied to illust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::752f8721c6964f93619be1e04c53f890
https://doi.org/10.1016/j.cemconres.2012.05.013
https://doi.org/10.1016/j.cemconres.2012.05.013
Autor:
Peter J. Chupas, Benjamin K. Greve, Karena W. Chapman, Andrew C. Jupe, Angus P. Wilkinson, C. Kurtz, Cody R. Morelock
Publikováno v:
Journal of Applied Crystallography. 44:1047-1053
A collimator and beam-stop assembly that can be inserted inside a temperature-controlled pressure vessel, to reduce dramatically the parasitic Bragg scattering from the vessel, has been designed and evaluated. High-energy X-ray powder diffraction dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de030a96abd346556ef84fdb0517df76
https://doi.org/10.1107/s0021889811028925
https://doi.org/10.1107/s0021889811028925
Publikováno v:
Journal of the American Ceramic Society. 94:1591-1597
The hydration kinetics of a white cement and batches of both Class G and H oil-well cements were examined between 0 and 60 MPa, at ≤80°C, using in situ synchrotron X-ray diffraction. This gives a continuous measure of the C3S (Ca3SiO5), CH (Ca(OH)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42537d60129371e7e163ea51720fa4cd
https://doi.org/10.1111/j.1551-2916.2010.04284.x
https://doi.org/10.1111/j.1551-2916.2010.04284.x
Autor:
William A. Bassett, Angus P. Wilkinson, Andrew C. Jupe, Karena W. Chapman, Peter L. Lee, E. A. Payzant, C.-S. Zha, K. M. White, Peter J. Chupas
Publikováno v:
Chemistry of Materials. 20:3728-3734
CeP2O7, a close structural relative of ZrP2O7, and many other MIVX2O7 (X – P, V, As) phases, forms on heating Ce(HPO4)2·xH2O between ∼300 and 600 °C and decomposes by oxygen loss at higher temperatures. In-situ X-ray diffraction measurements sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a493a9a3de5aa7d32af26459193a80bd
https://doi.org/10.1021/cm702338h
https://doi.org/10.1021/cm702338h
Publikováno v:
Cement and Concrete Research. 38:660-666
Under deep oil-well conditions of elevated temperature and pressure, crystalline calcium silicate hydrates are formed during Portland cement hydration. The use of silica rich mineral additives leads to the formation of crystalline hydrates with bette
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbca56343a656836f6809c08cd35f05a
https://doi.org/10.1016/j.cemconres.2007.12.004
https://doi.org/10.1016/j.cemconres.2007.12.004
Publikováno v:
Journal of the American Ceramic Society. 90:2595-2602
Class A and H oil well cements are compared at 25 and 50 C with 0%, 1%, 2%, and 4% CaCl{sub 2}. Up to 4% CaCl{sub 2} accelerated Class A thickening, but 4% led to slower thickening than 2% for Class H. C{sub 3}S hydration in the two cements responded
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e055346a0d0d71f5ee5bb82fea98000
https://doi.org/10.1111/j.1551-2916.2007.01806.x
https://doi.org/10.1111/j.1551-2916.2007.01806.x
Autor:
Andrew C. Jupe, Kimberly E. Kurtis, Stuart R. Stock, Angus P. Wilkinson, N. N. Naik, Peter L. Lee
Publikováno v:
Cement and Concrete Research. 36:144-159
X-ray microtomography (microCT) and spatially resolved energy dispersive X-ray diffraction (EDXRD) were used in combination to non-destructively monitor the physical and chemical manifestations of damage in Portland cement paste samples subjected to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cfebfa57c5467ce5ee3e84cc55677bf
https://doi.org/10.1016/j.cemconres.2005.06.004
https://doi.org/10.1016/j.cemconres.2005.06.004
Autor:
Andrew C. Jupe, Christopher Hall, Nicola Meller, S. L. Colston, John Dransfield, Paul Livesey, Simon D. M. Jacques, Paul Barnes, Geoffrey C. Maitland
Publikováno v:
Cement and Concrete Research. 35:2223-2232
The technique of synchrotron energy dispersive diffraction (EDD) has been developed for in situ studies of cement hydration under autoclave conditions. This has been applied to oilwell cements hydrating at typical oilwell temperatures up to 130 deg C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98ba0797993cae14b0db3f50e5c4658f
https://doi.org/10.1016/j.cemconres.2004.09.005
https://doi.org/10.1016/j.cemconres.2004.09.005
Publikováno v:
Industrial & Engineering Chemistry Research. 44:5579-5584
In situ powder X-ray diffraction was used to examine the hydration of API Class H cement slurries, with a water-to-cement ratio of 0.394, at 66, 93, 121, and 177 C under autogenous pressure in the presence of varying amounts of the additives tartaric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da527121628220984a7e728fc88e41a7
https://doi.org/10.1021/ie049085t
https://doi.org/10.1021/ie049085t