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| Avtorstvo: |
Jana ŠELIH // 1.02 Pregledni znanstveni članek
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| Leto: |
1997 |
| Citat: |
ŠELIH, Jana. Visokovredni betoni na osnovi domačih materialov = High
performance concrete based on local raw materials. Kovine zlit.
tehnol., 1997, let. 31, št. 1-2, str. 159-161. |
| Povzetek: |
Trajnost in
trdnost betona sta ključna parametra, ki vplivata na obnašanje betonskega
elementa oziroma zgradbe med celotno dobo uporabe. Če želimo določiti raven
trajnosti za posamezen primer, moramo poznati okolje, ki mu bo beton
izpostavljen med uporabo. Prav tako je pomembno, da identificiramo tiste
lastnosti konvencionalnega betona, ki negativno vplivajo na nivo trajnosti
materiala. Da te nezaželene pojave odstranimo, moramo uporabiti visokovredne
(specialne) betone, ki se od konvencionalnih razlikujejo po tem, da pri
njihovi pripravi dodajamo razliečne dodatke in uvajamo posebne postopke ter
tako dosežemo izboljšanje trajnosti. V članku so na kratko opisane lastnosti
betona z ekspanzivnim dodatkom, s polimerami ter mikroarmiranega in
visokotrdnega betona.
Durability and strength are the key
parameters influencing the development of the concrete element behaviour
over its entire service life. If the durability level for a particular case
of the concrete application is to be known, the environment to which
concrete has to be subjected has to be defined. It is also important to
identify the conventional concrete properties that have an adverse effect
upon the material durability. To improve these properties, high performance
concrete (HPC) has to be employed. In the production of HPC concrete,
special procedures are introduced in the technology of concrete, and certain
additives are added in order to improve concrete durability. In this paper,
expansive concrete, polymer concrete, fibre-reinforced concrete and high
strength concrete are discussed. |
| Tipologija: |
1.02 Pregledni znanstveni članek |
| COBISS ID |
102759 Polni zapis iz sistema COBISS |
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Vpisal 2001/08/08 19:56
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