| Identifier
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518 |
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ชื่อเรื่อง |
EFFECT OF THE QUENCHING IN WATER OF THE CEMENTITIOUS MATERIALS SUBJECTED TO FIRE
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ผู้สร้างผลงาน |
MESSAOUDENE, IBRAHIM
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ผู้สร้างผลงาน |
MOLEZ, LAURENT
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ผู้สร้างผลงาน |
JAUBERTHIE, RAOUL
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ผู้สร้างผลงาน |
KESSAL, OUSSAMA
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ผู้สร้างผลงาน |
SLAMA, LAHCENE
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Description |
Many studies have permitted the analysis of the mechanical behavior of concrete subjected to high temperatures. However, no one has done any work on the effect of re-humidification of cementitious materials exposed to a real fire. This is the first study. To better simulate the effects of a real fire, a test with wood fire is developed. Different cementitious materials (hardened cement pastes, and mortar) are subject to this heating for 1hour. The results of tests indicate that:The average resistance loss is in the order of 60% after exhibition in fire.The re-humidification (sudden quenching in water) allowed a recovery of mass about 10% and consequently a gain of compressive strength about 40%.Internal micro-structure analysis of cement pastes studied by XRD and the observation by a scanning electron microscope (SEM) shows that after the re-humidification, the cement rehydrates again (formation of Portlandite and CSH). Those observations explain the increase mechanical strength.
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Publisher |
Université de Biskra
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Contributor |
University of Biskra
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วันที่ |
2016-01-18
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ประเภท |
info:eu-repo/semantics/article
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ประเภท |
info:eu-repo/semantics/publishedVersion
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ประเภท |
Article évalué par les pairs
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รูปแบบ |
application/pdf
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Identifier |
http://revues.univ-biskra.dz/index.php/cds/article/view/1439
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แหล่งข้อมูล |
Courrier du Savoir; Vol. 20 (2015): COURRIER DU SAVOIR
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แหล่งข้อมูล |
Courrier du Savoir; Vol. 20 (2015): COURRIER DU SAVOIR
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แหล่งข้อมูล |
1112-3338
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แหล่งข้อมูล |
1112-3338
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ภาษา |
fra
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Relation |
http://revues.univ-biskra.dz/index.php/cds/article/view/1439/1363
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