Behavior of high strength concrete containing nano-metakaolin exposure to fire flame
Joint Authors
al-Khafaji, Muhammad K.
al-Mashhadani, Shakir Ahmad Salih
Abbas, Walid Abd al-Razzaq
Source
Engineering and Technology Journal
Issue
Vol. 34, Issue 5A (31 May. 2016), pp.857-875, 19 p.
Publisher
Publication Date
2016-05-31
Country of Publication
Iraq
No. of Pages
19
Main Subjects
Topics
- Temperatures
- Fires
- Concrete
- Physical properties
- Mechanical properties
- Reinforced concrete
- Aggregates(Building materials)
Abstract EN
The aim of this experimental study was to evaluate the effect of fire flame exposure with different intensities of firing on the mechanical properties of a high strength concrete (HSC).
Many variables were encountered in this study.
Two mixes of 80 MPa target compressive strength (1 : 1.22 : 2) with 3 % Nano-Metakaolin and the other with 5 % were used.
Two types of coarse aggregate were used (natural crushed gravel and crushed dolomite rock with maximum size of 14mm).
The specimens were moist cured for 28 days, air-dried in the laboratory to firing at ages 90 days at three temperature levels (400, 600, 800)oC and for three exposure periods (1, 1.5 and 2 hours).
Different methods were used to cool specimens.
The reduction values of compressive strength for all mixes ranged between (2-69.5) % at 400oC, (8-72) % at 600oC and (10-85) % at 800oC , the reduction values of splitting tensile strength were (9-43.2) %, (17-50)% and (39-76) %, and the reduction values of flexural strength were (51.7-84.8) %, (52.8-87) %, (53.6-87.8) %, respectively
American Psychological Association (APA)
al-Khafaji, Muhammad K.& Abbas, Walid Abd al-Razzaq& al-Mashhadani, Shakir Ahmad Salih. 2016. Behavior of high strength concrete containing nano-metakaolin exposure to fire flame. Engineering and Technology Journal،Vol. 34, no. 5A, pp.857-875.
https://search.emarefa.net/detail/BIM-696539
Modern Language Association (MLA)
al-Khafaji, Muhammad K.…[et al.]. Behavior of high strength concrete containing nano-metakaolin exposure to fire flame. Engineering and Technology Journal Vol. 34, no. 5A (2016), pp.857-875.
https://search.emarefa.net/detail/BIM-696539
American Medical Association (AMA)
al-Khafaji, Muhammad K.& Abbas, Walid Abd al-Razzaq& al-Mashhadani, Shakir Ahmad Salih. Behavior of high strength concrete containing nano-metakaolin exposure to fire flame. Engineering and Technology Journal. 2016. Vol. 34, no. 5A, pp.857-875.
https://search.emarefa.net/detail/BIM-696539
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 875
Record ID
BIM-696539