- Type of paper
: Paper in journal
Title: Hydration of silica fume containing cement pastes of low
water to solid ratio
- Authors:
- Đureković, Andrija (77384)
Journal: Silicates Industriels
Number: 5
ISSN: 0037-5225
Volume: 57
Year: 1992
Pages: from 71 to 76
Number of references: 28
Language: engleski
Summary: Hydration was investigated at normal temperature in cement
pastesof water to solid ratio of 0.28 . Samples were prepared usingordinary
portland cement (OPC) in which 0-5-10-15 per cent ofweight was replaced by
condensed silica fume (CSF). Theobservation period was from 4 hours up to
50 days. Hydrationdegrees of mineral alite determined by QXDA, formation of
freecalcium hydroxide detect by applying of DTA/TGA, Si-anionpolymerization
parameters obtained by molybdate method supportthe conclusion that
hydration in cement composites was suppressedwhen low w/s ratio was used.
Keywords: ordinary portland cement, condensed silica fume (CSF), degree of hydration, alite, Si-anions polymerization, molybdate method, low w/s-ratio.
- Type of paper
: Paper in journal
Title: The porosity of CSF-containing cement pastes of low water
content
- Authors:
- Đureković, Andrija (77384)
- Popović, Kreimir (73141)
Journal: Građevinar
Number: 11
ISSN: 0350-2465
Volume: 45
Year: 1993
Pages: from 633 to 638
Number of references: 25
Language: hrvatski
Summary: Porosity characteristics of samples ranging from 1 to 28
days inage and having the water-binder ratio of 0.28 were investigatedusing
the mercury porosimeter and capillary water suctiontest.Samples with and
without superplasticizer for concrete wereprepared using an ordinary
portland cement (OPC) in which onepart was replaced by the condensed silica
fume (CSF).The particlesize distribution of anhydrous mixes was determined
using asensing zone method equipment of type "Coulter counter ZB".
Keywords: Ordinary portland cement,silica fume,superplasticizer,porosity,pore size distribution,mercury porosimeter,capillary water suction,method of electric sensing zone,low w/s-ratio.
- Type of paper
: Paper in journal
Title: Experience and current trends in the use of condensed
silica fume
- Authors:
- Đureković, Andrija (77384)
Journal: Građevinar
Number: 7
ISSN: 0350-2465
Volume: 46
Year: 1994
Pages: from 395 to 403
Number of references: 72
Language: hrvatski
Summary: Various uses of the condensed silica fume (CSF) are
presented. The set of application procedures enabling exceptional
improvement of individual cement composite properties has been developed.
In addition to using CSF in cement composites of improved durability and in
the concrete of high and very high strength (VHS), tha author also outlines
CSF use in concrete for increased temperatures, underwater concreting,
shotcreting, oil-well cement grouting, DSP- , MDF- , and CBC-composites,
and for some other special purposes.
Keywords: Condensed silica fume, application, improvement of properties, cement composite, concrete, concreting.
- Type of paper
: Paper in proceedings
Title: Hydration in very high strength cement composites
- Authors:
- Đureković, Andrija (77384)
- Editors
- Mullick, A.K.
Proceedings title: Proceedings of 9th International Congress on the Chemistry of Cement
Language: engleski
Place: New Delhi, India
Year: 1992
Pages: from 543 to 549
Meeting: 9th International Congress on the Chemistry of Cement
Held: from 11/23/92 to 11/28/92
Summary: Hydration characteristics were investigated at normal
temperaturein cement composites of water to solid ratio of 0.28 .The
sampleswere prepared using OPC in which 0-5-10-15 percent of weight
wasreplaced by condensed silica fume.Hydration degrees of alite
andtricalcium aluminate were determined using QXDA. Formation offree
calcium hydroxide were detected by applying DTA/TGA.
Keywords: ordinary portland cement,condensed silica fume, alite,tricalcium aluminate,QXDA,DTA/TGA,low w/s-ratio.
- Type of paper
: Paper in proceedings
Title: Hydration in the CSF-containing cement composites of low
water content
- Authors:
- Đureković, Andrija (77384)
- Editors
- Dhir Ravindra K, Jones M Roderick
Proceedings title: CONCRETE 2000
Language: engleski
Place: London, United Kingdom
Year: 1993
ISBN/ISSN: 0419181202
Pages: from 559 to 566
Meeting: International Conference CONCRETE 2000-Economic and durable construction through exellence
Held: from 09/07/93 to 09/09/93
Summary: The hydration of the very high strength cement composites
havingwater to solid ratio of 0.28 was investigated at
normaltemperature.Samples were prepared using OPC in which a part
of0-5-10-15 percent of weight was replaced by condensed silicafume.
Hydration degrees of alite and tricalcium aluminate wasdetermined by use of
QXDA. The setting behaviour of fresh mixesand the temperature increase of
hydrating pastes are alsopresented.
Keywords: Cement composites of VH strength,silica fume (CSF),portland cement (OPC),low w/s-ratio, C3A/alite hydration degrees,setting times, temperature increase.
Other: Konferencija je odrana u Dundee,Scotland , a Proceedings
jeizdao Chapman & Hall Publ.,London,UK .
