Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834
While exposed to high temperatures caused by fire, the concrete undergoes a sequence of physical and chemical structure changes causing a mechanical degradation. This paper concerns an experimental strength determination of a temperature stressed concrete. The concrete was temperature loaded accordi...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
EDP Sciences
2017-01-01
|
Series: | MATEC Web of Conferences |
Online Access: | https://doi.org/10.1051/matecconf/201710700041 |
id |
doaj-ddcc20b12abc482d8b248774a4de626e |
---|---|
record_format |
Article |
spelling |
doaj-ddcc20b12abc482d8b248774a4de626e2021-02-02T00:08:36ZengEDP SciencesMATEC Web of Conferences2261-236X2017-01-011070004110.1051/matecconf/201710700041matecconf_dyn2017_00041Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834Rozsypalová Iva0Daněk Petr1Šimonová Hana2Keršner Zbyněk3Brno University of Technology, Faculty of Civil EngineeringBrno University of Technology, Faculty of Civil EngineeringBrno University of Technology, Faculty of Civil EngineeringBrno University of Technology, Faculty of Civil EngineeringWhile exposed to high temperatures caused by fire, the concrete undergoes a sequence of physical and chemical structure changes causing a mechanical degradation. This paper concerns an experimental strength determination of a temperature stressed concrete. The concrete was temperature loaded according to temperature-time curve ISO 834 and left on a top temperature level for 60 minutes afterwards. This temperature heating rise is in accordance with a common fire expansion in a structure. The concrete panels sized 150 × 1300 × 2300 mm were temperature loaded up to 550, 600, 800 a 1000 °C in a horizontal position in gas furnace for fire testing of structure elements in research Centre AdMaS. The temperatures of the gas in the furnace and the panel was measured during the whole experiment by using the thermocouples. After the fire test, the specimens were drilled out using a 100 mm diameter core drill. The compressive strength and splitting tensile strength tests were made and the results were compared to the reference specimen’s test results. The objective results of a commonly used strength class concrete loaded by elevated temperature corresponding to the real fire exposure differ common linear heat exposure test results and are considered being very valuable.https://doi.org/10.1051/matecconf/201710700041 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rozsypalová Iva Daněk Petr Šimonová Hana Keršner Zbyněk |
spellingShingle |
Rozsypalová Iva Daněk Petr Šimonová Hana Keršner Zbyněk Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834 MATEC Web of Conferences |
author_facet |
Rozsypalová Iva Daněk Petr Šimonová Hana Keršner Zbyněk |
author_sort |
Rozsypalová Iva |
title |
Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834 |
title_short |
Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834 |
title_full |
Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834 |
title_fullStr |
Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834 |
title_full_unstemmed |
Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834 |
title_sort |
strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve iso 834 |
publisher |
EDP Sciences |
series |
MATEC Web of Conferences |
issn |
2261-236X |
publishDate |
2017-01-01 |
description |
While exposed to high temperatures caused by fire, the concrete undergoes a sequence of physical and chemical structure changes causing a mechanical degradation. This paper concerns an experimental strength determination of a temperature stressed concrete. The concrete was temperature loaded according to temperature-time curve ISO 834 and left on a top temperature level for 60 minutes afterwards. This temperature heating rise is in accordance with a common fire expansion in a structure. The concrete panels sized 150 × 1300 × 2300 mm were temperature loaded up to 550, 600, 800 a 1000 °C in a horizontal position in gas furnace for fire testing of structure elements in research Centre AdMaS. The temperatures of the gas in the furnace and the panel was measured during the whole experiment by using the thermocouples. After the fire test, the specimens were drilled out using a 100 mm diameter core drill. The compressive strength and splitting tensile strength tests were made and the results were compared to the reference specimen’s test results. The objective results of a commonly used strength class concrete loaded by elevated temperature corresponding to the real fire exposure differ common linear heat exposure test results and are considered being very valuable. |
url |
https://doi.org/10.1051/matecconf/201710700041 |
work_keys_str_mv |
AT rozsypalovaiva strengthcharacteristicsofconcreteexposedtotheelevatedtemperaturesaccordingtothetemperaturetimecurveiso834 AT danekpetr strengthcharacteristicsofconcreteexposedtotheelevatedtemperaturesaccordingtothetemperaturetimecurveiso834 AT simonovahana strengthcharacteristicsofconcreteexposedtotheelevatedtemperaturesaccordingtothetemperaturetimecurveiso834 AT kersnerzbynek strengthcharacteristicsofconcreteexposedtotheelevatedtemperaturesaccordingtothetemperaturetimecurveiso834 |
_version_ |
1724314430460657664 |