| Autor: |
L. Berntsson, Y. Anderberg, Satish Chandra |
| Rok vydání: |
1980 |
| Předmět: |
|
| Zdroj: |
Cement and Concrete Research. 10:367-375 |
| ISSN: |
0008-8846 |
| DOI: |
10.1016/0008-8846(80)90112-x |
| Popis: |
Some trials have been made under this work to see the influence of small amount (1–1.5%) polymer addition on the fire resistance of concrete. Normal concrete plates with and without polymer addition are compared. Lightweight aggregate concrete plates, slabs and reinforced beams are also tested for fire exposure. Plates of normal and lightweight aggregate concrete have not shown any spalling effect when exposed to fire from one side. Normal concrete without polymer addition resulted in explosive spalling when exposed to fire from two sides whereas no spalling is noticed in all types of concrete tested with polymer addition. A more open structure created in cement paste by polymer addition seems to facilitate the steam transport from the specimens during heating and thus prevents creation of high vapor pressure in the concrete, responsible for explosive spalling. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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