Advanced SearchSearch Tips
Exposure to elevated temperatures and cooled under different regimes-a study on polypropylene concrete
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Exposure to elevated temperatures and cooled under different regimes-a study on polypropylene concrete
Yaragal, Subhash C.; Ramanjaneyulu, S.;
Fire is one of the most destructive powers to which a building structure can be subjected, often exposing concrete elements to elevated temperatures. The relative properties of concrete after such an exposure are of significant importance in terms of the serviceability of buildings. Unraveling the heating history of concrete and different cooling regimes is important for forensic research or to determine whether a fire-exposed concrete structure and its components are still structurally sound or not. Assessment of fire-damaged concrete structures usually starts with visual observation of colour change, cracking and spalling. Thus, it is important to know the effect of elevated temperatures on strength retention properties of concrete. This study reports the effect of elevated temperature on the mechanical properties of the concrete specimen with polypropylene fibres and cooled differently under various regimes. In the heating cycle, the specimen were subjected to elevated temperatures ranging from to , in steps of with a retention period of 1 hour. Then they were cooled to room temperature differently. The cooling regimes studied include, furnace cooling, air cooling and sudden cooling. After exposure to elevated temperatures and cooled differently, the weight loss, residual compressive and split tensile strengths retention characteristics were studied. Test results indicated that weight and both compressive and tensile strengths significantly reduce, with an increase in temperature and are strongly dependent on cooling regimes adopted.
concrete;performance;heating;cooling regimes;polypropylene;strength loss;
 Cited by
Investigation on the behaviour of ternary blended concrete with scba and sf, IOP Conference Series: Materials Science and Engineering, 2017, 263, 032012  crossref(new windwow)
Abdelalim, A.M.K., Abdel-Aziz, G.E., El-Mohr, M.A.K. and Salama, G.A. (2009), "Effect of elevated fire temperature and cooling regime on the fire resistance of normal and self-compacting concretes", Eng. Res. J., 122, 63-81.

Al Qadi, A.N. and Al-Zaidyeen, S.M. (2014), "Effect of fibre content and specimen shape on residual strength of polypropylene fibre self-compacting concrete exposed to elevated temperatures", J. King Saud Univ.-Eng. Sci., 26(1), 33-39.

Arioz, O. (2007), "Effects of elevated temperatures on properties of concrete", Fire Safety J., 42(8), 516-522. crossref(new window)

Balazs, L.G., Lubloy, E. and Mezei, S. (2010), "Potentials in concrete mix design to improve fire resistance", Concrete Struct. Annl. Tech. J.: J. Hungarian Group of FIB, 11, 67-72.

Bingol, A.F. and Gul, R. (2009), "Effect of elevated temperatures and cooling regimes on normal strength concrete", Fire Mater., 33(2), 79-88. crossref(new window)

Hertz, K.D. (2003), "Limits of spalling of fire-exposed concrete", Fire Safety J., 38(2), 103-116. crossref(new window)

Janotka, I. and Nurnbergerova, T. (2005), "Effect of temperature on structural quality of the cement paste and high-strength concrete with silica fume", Nucl. Eng. Des., 235(17), 2019-2032. crossref(new window)

Mendes, A., Sanjayan, J.G. and Collins, F. (2011), "Effects of slag and cooling method on the progressive deterioration of concrete after exposure to elevated temperatures as in a fire event", Mater. Struct., 44(3), 709-718. crossref(new window)

Rao, M.S., Yaragal, S.C., Chacko, K.S., Nivedita, G. and Narayan, K.S.B. (2012), "Studies on elevated temperatures and quenching effects on blended concretes", Int. J. Appl. Eng. Tech., 2, 31-38.

Raamugee, K. (2013), "Strength properties of polypropylene fibre reinforced concrete", Int. J. Inno. Res. Sci. Eng. Tech., 2.

Rodrigues, J.P., Lain, L. and Correia, A. (2010), "Behaviour of fiber reinforced columns in fire", Compos. Struct., 92, 1263-1268. crossref(new window)

Schneider, U. (1988), "Concrete at high temperature-A general review", Fire Safety J., 13, 55-68. crossref(new window)

Shihada, S. (2011), "Effect of polypropylene fibers on concrete fire resistance", J. Civil Eng. Manage., 17(2), 259-264. crossref(new window)

Tanacan, L., Ersoy, H.Y. and Arpacioglu, U. (2009), "Effect of high temperature and cooling conditions on aerated concrete properties", Constr. Build. Mater., 23(3), 1240-1248. crossref(new window)

Xiao, J. and Falkner, H. (2006), "On residual strength of high-performance concrete with and without polypropylene fibres at elevated temperatures", Fire Safety J., 41(2), 115-121. crossref(new window)

Yaragal, S., Narayan, K.B., Venkataramana, K., Kulkarni, K., Gowda, H.C., Reddy, G.R. and Sharma, A. (2010), "Studies on normal strength concrete cubes subjected to elevated temperatures", J. Struct. Fire Eng., 1(4), 249-262. crossref(new window)

Yaragal, S. and Narayan, K. (2012), "Strength characteristics of concrete exposed to elevated temperatures and cooled under different regimes", J. Struct. Fire Eng., 3(4), 301-310. crossref(new window)