Fahmy, W., Heneidy, E., Ali, E., Agwa, I. (2011). MECHANICAL PROPERTIES OF CONCRETE CONTAINING RECYCLED CONCRETE AGGREGATES SUBJECTED TO DIFFERENT FIRE DURATIONS. test, 39(No 5), 1005-1019. doi: 10.21608/jesaun.2011.129380
Walid Safwat Fahmy; Erfan Abdel-Latif Heneidy; Esraa Emam Ali; Ibrahim Saad Mohammed Agwa. "MECHANICAL PROPERTIES OF CONCRETE CONTAINING RECYCLED CONCRETE AGGREGATES SUBJECTED TO DIFFERENT FIRE DURATIONS". test, 39, No 5, 2011, 1005-1019. doi: 10.21608/jesaun.2011.129380
Fahmy, W., Heneidy, E., Ali, E., Agwa, I. (2011). 'MECHANICAL PROPERTIES OF CONCRETE CONTAINING RECYCLED CONCRETE AGGREGATES SUBJECTED TO DIFFERENT FIRE DURATIONS', test, 39(No 5), pp. 1005-1019. doi: 10.21608/jesaun.2011.129380
Fahmy, W., Heneidy, E., Ali, E., Agwa, I. MECHANICAL PROPERTIES OF CONCRETE CONTAINING RECYCLED CONCRETE AGGREGATES SUBJECTED TO DIFFERENT FIRE DURATIONS. test, 2011; 39(No 5): 1005-1019. doi: 10.21608/jesaun.2011.129380

MECHANICAL PROPERTIES OF CONCRETE CONTAINING RECYCLED CONCRETE AGGREGATES SUBJECTED TO DIFFERENT FIRE DURATIONS

JES. Journal of Engineering Sciences
Article 5, Volume 39, No 5, September and October 2011, Pages 1005-1019    PDF (202.04 K)
Document Type: Research Paper
DOI: 10.21608/jesaun.2011.129380
Authors
Walid Safwat Fahmy1; Erfan Abdel-Latif Heneidy2; Esraa Emam Ali3; Ibrahim Saad Mohammed Agwa4
1Faculty of petroleum Engineering and Mining, Suez Canal University, Suez, EGYPT.
2Civil Engineering Dept., Faculty of Engineering, Suez Canal University, Ismailia, EGYPT
3Material Dept., Housing and Building National Research Center-Dokki- Cairo, EGYPT
4Civil Structures Dept., Faculty of Industrial Education, Suez Canal Univ., Suez, EGYPT.
Abstract
The amount of construction and demolition waste has increased
considerably over the last few years. Crushing concrete to produce
coarse aggregate for the production of new concrete is one common
means for achieving a more environment-friendly concrete. This
experimental study demonstrates the mechanical properties of concrete
containing recycled concrete aggregate (RCA) subjected to different fire
durations. In the experimental work, the fresh concrete properties (slump < br />test) and the hardened concrete properties, (compressive strength,
splitting tensile strength, flexural strength and modulus of elasticity)
were carried out. A total of thirty concrete mixes with different cement
contents (300, 350, and 400 Kg/m3) at w/c ratio (0.5) were made and the
percentage of substitution of natural concrete coarse aggregate by the
recycled concrete coarse aggregate subjected to fire durations (1,2 and 3
hours) at fire temperature (600ºC) was (0%, 25%, 50% and 100%). In
the process of mixing, equal consistence among all concrete mixes was
achieved. The obtained results indicate that the recycled coarse
aggregate subjected to fire can successfully be used for making
structural concrete.
Keywords
Recycled concrete aggregate; fire duration; Compressive strength. Tensile strength; Flexural strength and Modulus of elasticity
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