A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-strength aluminate cement produced by cold isostatic pressing
High strength cement was obtained by a simple process technique. Powders of Secar 71 were cold isostatically pressed (CIP) into green bodies with a relative density of 66 vol%. The green bodies were then immersed in water or kept in humid air for curing at various temperatures for different periods of time. Hydrated cements with high density and low porosity were obtained. The water uptake was more than 20% (by weight) after one day. Over the course of a few days the open porosity decreased to a few per cent. The three-point bending strength of the hydrated cement bodies was 50-80 MPa, and the compressive strength exeeded 200 MPa. The hardness measurement revealed a twofold increase, compared with the control specimens which were prepared by the conventional mixing method. The microstructure of the CIP-processed cements showed a macropore-free composite structure. It was concluded that, by applying CIP, high-strength cement could be produced using commercially available cement without any auxiliary additives.
High-strength aluminate cement produced by cold isostatic pressing
High strength cement was obtained by a simple process technique. Powders of Secar 71 were cold isostatically pressed (CIP) into green bodies with a relative density of 66 vol%. The green bodies were then immersed in water or kept in humid air for curing at various temperatures for different periods of time. Hydrated cements with high density and low porosity were obtained. The water uptake was more than 20% (by weight) after one day. Over the course of a few days the open porosity decreased to a few per cent. The three-point bending strength of the hydrated cement bodies was 50-80 MPa, and the compressive strength exeeded 200 MPa. The hardness measurement revealed a twofold increase, compared with the control specimens which were prepared by the conventional mixing method. The microstructure of the CIP-processed cements showed a macropore-free composite structure. It was concluded that, by applying CIP, high-strength cement could be produced using commercially available cement without any auxiliary additives.
High-strength aluminate cement produced by cold isostatic pressing
Hochfester Aluminatzement, erzeugt durch kaltisostatisches Pressen
Li, J. (author) / Hermansson, L. (author)
Journal of Materials Science ; 35 ; 5879-5883
2000
5 Seiten, 4 Bilder, 5 Tabellen, 11 Quellen
Article (Journal)
English
High-strength aluminate cement produced by cold isostatic pressing
| British Library Online Contents | 2000
Rubber isostatic pressing and cold isostatic pressing of metal powder
| British Library Online Contents | 2004
Cold isostatic pressing of cement pastes to produce pore reduced cement (PRC)
| Tema Archive | 1998
Development of high strength calcium aluminate-phosphate cement by hydrothermal hot-pressing
| British Library Online Contents | 1997