Zobrazeno 1 - 10
of 14
pro vyhledávání: '"P. E. Grattan-Bellew"'
Concrete paving slabs were tested to achieve the following three objectives: (1) assess the degree of freeze-thaw durability required in the various climatic regions of Canada, (2) assess the merit of standard testing methods, and (3) evaluate the ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ae0bbdf744fdf0abe122a146c8f13a8
https://doi.org/10.1520/stp36089s
https://doi.org/10.1520/stp36089s
Publikováno v:
ACI Materials Journal. 99
The presence of significant concrete damage due to alkali-silica reaction (ASR) expansions in numerous reinforced concrete structures thoughout the world has prompted the need to predict the residual strength and structural behavior of such structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae85cb159069fbde39559b80d535773b
https://doi.org/10.14359/11315
https://doi.org/10.14359/11315
In Ontario, two types of alkali-aggregate reaction exist. Each type is evaluated using different tests. Over the past few years, new tests have been introduced to replace some existing test methods. The new tests are faster and more reliable. Prevent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::911c3c418550efb17e3ede5d33a84e52
https://nrc-publications.canada.ca/eng/view/object/?id=26ca1493-3ff0-4a9b-be59-b961d1d9f76a
https://nrc-publications.canada.ca/eng/view/object/?id=26ca1493-3ff0-4a9b-be59-b961d1d9f76a
Autor:
P. E. Grattan-Bellew
Concrete cracking, characteristic of alkali-aggregate reaction, was observed in Saunders Generating Station. This investigation was designed to confirm that alkali-aggregate reaction was the primary cause of the observed concrete deterioration, evalu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fa9db13cae92e7aaaa5da263cbb55c9
https://nrc-publications.canada.ca/eng/view/object/?id=c9986ce9-f0d9-482d-acb4-b2e8eb7a0278
https://nrc-publications.canada.ca/eng/view/object/?id=c9986ce9-f0d9-482d-acb4-b2e8eb7a0278
Autor:
P. E. Grattan-Bellew
Publikováno v:
ACI Materials Journal. 91
Laboratory tests showed that the alkali contents of the pore solutions in concrete cores taken from the Saunders Generating Station, Cornwall, Ontario, Canada, were higher than the estimated original value. The structure was built 30 years ago, using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4a9d8fd3252fbac6309f90fad09cf02
https://doi.org/10.14359/4570
https://doi.org/10.14359/4570
Autor:
P. E. Grattan-Bellew
The first case of alkali-silica reaction (ASR) in Canada was discovered in the mid 1950s, by which time most of the investigative techniques currently used had already been developed. Three types of reactive aggregates are recognised in the current C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c1783c86171aace59cc1a0d26c7292f
https://doi.org/10.4324/9780203036631-10
https://doi.org/10.4324/9780203036631-10
Publikováno v:
Energy & Fuels. 2:589-593
Separation de la matiere organique insoluble dans le toluene a l'aide d'une solution de Na 4 P 2 O 7 et analyse par differentes techniques. Consequences sur la recuperation du bitume dans les procedes bases sur l'eau
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a690e75b74e5660d954ae445d88ff1fb
https://doi.org/10.1021/ef00010a030
https://doi.org/10.1021/ef00010a030
Autor:
P. E. Grattan-Bellew, G. C. McRostie
Publikováno v:
Canadian Geotechnical Journal. 19:108-111
Heaving of floors founded on black shale in the Ottawa region is due to the oxidation of pyrite in it and the subsequent formation of jarosite and gypsum which crystallize between the layers of the thinly laminated fissile shale causing it to expand.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aed8aa3fba63aba86a3082a65ba726f6
https://doi.org/10.1139/t82-010
https://doi.org/10.1139/t82-010
Autor:
P. E. Grattan-Bellew
Publikováno v:
Matériaux et Constructions. 16:243-250
The effectiveness of the mortar bar ASTM C227 and concrete prism CSA A23.2-14A tests for evaluating the potential alkali-aggregate reactivity of classical alkali-silica, late expansive siliceous and alkali-carbonate aggregates is discussed. It is emp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a6c4f477915f5e9c1d1def9f6f5a708
https://doi.org/10.1007/bf02473689
https://doi.org/10.1007/bf02473689
Publikováno v:
Applied Clay Science. 2:253-271
Bitumen-free solids from different grades of Athabasca oil sand were fractionated according to particle size before and after treatment with sodium pyrophosphate (Na4P2O7) solution. All solids showed decreasing amounts of organic matter from coarse t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5e0314e537bea0d46aca65061b40dd1
https://doi.org/10.1016/0169-1317(87)90035-4
https://doi.org/10.1016/0169-1317(87)90035-4