Wyniki wyszukiwania - BazTech

1

Udział Katedry Inżynierii Materiałów Budowlanych w powstaniu polskiej wersji programu COBET

Lipowski G.

Zeszyty Naukowe. Budownictwo / Politechnika Opolska

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2005

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z. 48

157-159

2

The influence of mineral fillers on rheological properities of cement pastes

Grzeszczyk S., Lipowski G.

International Journal of Applied Mechanics and Engineering

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2003

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Vol. 8, no spec.

39-42

EN

The effect of two of mineral fillers on rheology of fresh cement pastes was investigated. Laboratory prepared cement was replaced with 40% of fly ash and finely grinded limestone. Rheological experiments were carried out for constant water/solid ratio 0.35 and performed according to the same measurement procedure. Mineral fillers grain size distribution was measured by laser diffraction granulometer. An increase both in yield value and plastic viscosity of cement pastes with fly ash and grinded limestone content was found.

3

Rheological properties of cement pastes containing fly ash

Grzeszczyk S., Lipowski G.

Applied Mechanics and Engineering

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1999

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Vol. 4, no spec.

215-220

EN

In this paper the analysis of fly ash influence on rheological properties of cement pastes have been carried out. It was pointed that rheological properties of cement pastes containing fly ash from bituminous coal depend mostly on content fly ash in cement and on the quantity of fine fraction in fly ash as well as on the shape of fly ash particle.

4

Wpływ zawartości fazy C3A w cemencie na właściwości reologiczne zaczynów cementowo-popiołowych

Lipowski G.

Zeszyty Naukowe. Budownictwo / Politechnika Opolska

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1998

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z. 43

15-25

PL

Na podstwie danych literaturowych omówiono czynniki wpływające na właściwości reologiczne zaczynów cementowych. W oparciu o przeprowadzone badania zaczynów cementowo-popiołowych wykonanych z cementów o różnej zawartości fazy C3A, określono wpływ tej fazy na właściwości reologiczne zaczynów zawierających popioły lotne nisko- i wysokowapniowe.

5

Effects of low-calcium fly ash on the rheology of fresh cement pastes

Grzeszczyk S., Lipowski G.

Applied Mechanics and Engineering

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1998

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Vol. 3, no 4

589-600

EN

Results of the effect of fly ash upon rheological properties of cement pastes have been presented. Bituminous fly ash when added to cement have been found to produce a decrease both in the yield shear stress value and plastic viscosity of cement pastes the greater the higher the fly ash content. A relation between the fine fraction share in the fly ash and the flowability degree of cement pastes was found. The fine fraction content of the fly ash has been proved to be a better parameter to evaluate the influence of the fineness upon the rheology of cement pastes than Blain's specific surface area is.