Performance evaluation of lightweight insulating plaster for enhancing the fire endurance of high strength structural concrete

Kiran, Tattukolla; Yadav, Siva Kumar; Anand, N.; Mathews, Mervin Ealiyas; Andrushia, A. Diana; Lublóy, Éva; Kodur, Venkatesh

doi:10.1016/j.jobe.2022.104902

Cited by 14 publications

(9 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Literature Review and Expert Consultation: Information about the composition and properties of the fire-resistant materials (Materials A, B, C) was likely gathered through a comprehensive review of existing literature on fire-resistant construction materials. This has been supplemented with consultations with industry experts and material scientists to understand the thermal properties (like thermal conductivity and maximum temperature resistance) and physical characteristics (like thickness) of these materials Kiran T, 2022 [4] .…”

Section: Methodology and Proceduresmentioning

confidence: 99%

Performance of composite concrete columns encased in fire-resistant materials during fire exposure

Mahmoud,

Moustafa

2023

Int. J. Civ. Eng. Archit. Eng.

View full text Add to dashboard Cite

show abstract

Section: Methodology and Proceduresmentioning

confidence: 99%

Performance of composite concrete columns encased in fire-resistant materials during fire exposure

Mahmoud,

Moustafa

2023

Int. J. Civ. Eng. Archit. Eng.

View full text Add to dashboard Cite

show abstract

“…With sensitive mixing, and when the correct consistency of the mixture was found that avoided crushing the expanded perlite, a bulk density of 587 kg/m 3 was achieved in the wet state. This wet bulk density was similar to that of industrial fire plaster (Gravit et al ., 2022; Kiran et al ., 2022).…”

Section: Sample Preparationmentioning

confidence: 99%

Application of hybrid cement in passive fire protection of steel structures

Šejna,

Šulc,

Šmilauer

et al. 2023

JSFE

View full text Add to dashboard Cite

PurposeThe aim of this paper is to determine the thermal conductivity of a protective layer of alkali-activated cement and the possibility of performing fire protection with fireclay sand and Lightweight mortar. Unprotected steel structures have generally low fire resistance and require surface protection. The design of passive protection of a steel element must consider the service life of the structure and the possible need to replace the fire protection layer. Currently, conventional passive protection options include intumescent coatings, which are subject to frequent inspection and renewal, gypsum and cement-based fire coatings and gypsum and cement board fire protection.Design/methodology/approachAlkali-activated cements provide an alternative to traditional Portland clinker-based materials for specific areas. This paper presents the properties of hybrid cement, its manufacturability for conventional mortars and the development of passive fire protection. Fire experiments were conducted with mortar with alkali-activated and fireclay sand and lightweight mortar with alkali-activated cement and expanded perlite. Fire experiment FE modelling.FindingsThe temperatures of the protected steel and the formation of cracks in the protective layer were investigated. Based on the experiments, the thermal conductivities of the two protective layers were determined. Conclusions are presented on the applicability of alkaline-activated cement mortars and the possibilities of applicability for the protection of steel structures. The functionality of the passive fire layer was confirmed and the strengths of the mortar used were determined. The use of alkali-activated cements was shown to be a suitable option for sustainable passive fire protection of steel structures.Originality/valueEco-friendly fire protection based on hybrid alkali-activated cement of steel members.

show abstract

“…The deterioration of the dense structure and the decline in strength in SCC become significant when exposed to temperatures above 500 • C, primarily due to the decomposition of calcium hydroxide. During this phase, the strength reduction occurs due to the complete dehydration of the CSH gel, resulting in the loss of its inherent binding ability [33].…”

Section: Residual Compressive Strengthmentioning

confidence: 99%

“…The efficiency of the CPP coating in combination with the EPA content in withstanding high temperatures is evident from the comparison. EPA's enhanced thermal compatibility nature gives it a unique property [32,33].…”

Section: Failure Impact Energy Of Scc Specimensmentioning

confidence: 99%

Efficacy of Fire Protection Techniques on Impact Resistance of Self-Compacting Concrete

et al. 2023

Self Cite

View full text Add to dashboard Cite

The present research investigates the behaviour of sustainable Self-Compacting Concrete (SCC) when subjected to high temperatures, focusing on workability, post-fire impact resistance, and the effects of fire protection coatings. To develop environmentally friendly SCC mixes, Supplementary Cementitious Materials (SCM) such as Fly Ash (FA), Ground Granulated Blast Furnace Slag (GGBFS), and Expanded Perlite Aggregate (EPA) were used. Fifty-six cubes and ninety-six impact SCC specimens were cast and cured for testing. Fire-resistant Cement Perlite Plaster (CPP) coatings were applied to the protected specimens, a passive protection coating rarely studied. SCC (unprotected and protected) specimens, i.e., protected and unprotected samples, were heated following the ISO standard fire curve. An extensive comparative study has been conducted on utilising different SCMs for developing SCC. Workability behaviour, post-fire impact resistance, and the influence of fire protection coatings on sustainable SCC subjected to high temperatures are the significant parameters examined in the present research, including physical observations and failure patterns. The test results noted that after 30 min of exposure, the unprotected specimen exhibited a significant decrease in failure impact energy, ranging from 80% to 90%. Furthermore, as the heating duration increased, there was a gradual rise in the loss of failure impact energy. However, when considering the protected CPP specimens, it was observed that they effectively mitigated the loss of strength when subjected to elevated temperature. Therefore, the findings of this research may have practical implications for the construction industry and contribute to the development of sustainable and fire-resistant SCC materials.

show abstract

Performance evaluation of lightweight insulating plaster for enhancing the fire endurance of high strength structural concrete

Cited by 14 publications

References 34 publications

Performance of composite concrete columns encased in fire-resistant materials during fire exposure

Performance of composite concrete columns encased in fire-resistant materials during fire exposure

Application of hybrid cement in passive fire protection of steel structures

Efficacy of Fire Protection Techniques on Impact Resistance of Self-Compacting Concrete

Contact Info

Product

Resources

About