Review on Fire Performance of Cellular Lightweight Concrete

Upasiri, I. R., Konthesingha, K. M. C., Poologanathan, Keerthan, Nanayakkara, S. M. A. and Nagaratnam, Brabha (2020) Review on Fire Performance of Cellular Lightweight Concrete. In: ICSBE 2019 - 9th International Conference on Sustainable Built Environment, 13th - 16th December 2018, Kandy, Sri Lanka.

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Official URL: http://dx.doi.org/10.1007/978-981-13-9749-3_41

Abstract

Structural fire damage can be identified as a common accidental disaster throughout the world which cause thousands of deaths, injuries and millions in property damage each year. Fire represents one of the most severe conditions to which structures may be subjected. Generally, structural elements will be exposed to very high temperature (1200 ℃) during a fire propagation. Fire safety of a structure is measured in terms of fire resistance, which is the duration that a structural member can exhibit resistance with respect to structural integrity, stability and heat transmission. Concrete generally provides better fire resisting characteristics compared to the other construction materials due to its low thermal conductivity, high heat capacity and slower strength degradation with temperature. Cellular lightweight concrete (CLC) is one of the novel type of concrete which can be identified as a better construction material than conventional concrete due to its numerous advantages. However, limited research work has been carried out to determine the fire performance of CLC. Fire response of structural members depends on the thermal, mechanical and deformation properties of the structural material at elevated temperatures. Even though properties at elevated temperatures for normal weight concrete is available in literature, properties of CLC at elevated temperatures (ambient to 1200 ℃) is not thoroughly investigated. Further, CLC fire rating under natural/parametric fire situations and under hydrocarbon fire situations needs to be studied. EN 1992.1.2 provides minimum thickness requirements under standard fire situations for non-loadbearing and load bearing normal weight concrete walls, but for CLC, these values are not available, hence required to be included. Also, parameters and material property limitations related to spalling effect of CLC during fire exposure has not being investigated. Moreover, residual characteristics of CLC walls after fire situations and ability to withstand a second fire situation needs to be assessed.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Cellular lightweight concrete, Fire performance, Design guidelines, Insulation, Integrity
Subjects: K200 Building
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Paul Burns
Date Deposited: 18 Sep 2019 17:32
Last Modified: 11 Oct 2019 13:19
URI: http://nrl.northumbria.ac.uk/id/eprint/40741

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