Thermal behaviour of novel lightweight concrete at ambient and elevated temperatures: Experimental, modelling and parametric studies

Al-Sibahy, Adnan; Edwards, Rodger

doi:10.1016/j.conbuildmat.2011.12.096

Cited by 60 publications

(29 citation statements)

References 26 publications

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“…The density declined monotonically between 400 and 600 ºC, but less than that of during 25-200 ºC, and the density decreased slowly in the range of 800-1000 ºC. The density evolution of sacrificial concrete without and with GSNSs is highly related with the weight loss of them (see Fig.7a), the result of which is similar to that of lightweight concrete subjected to high temperatures [48], although its volume variation due to high temperature has not been taken into account in that study. In addition, the density of sacrificial concrete without and with GSNSs was important input data for the calculation of the thermal diffusivity.…”

Section: Densitymentioning

confidence: 65%

Effects of graphene sulfonate nanosheets on mechanical and thermal properties of sacrificial concrete during high temperature exposure

Chu

Jiang

Sun

et al. 2017

Cement and Concrete Composites

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Using nanomaterials is a new method to improve concrete material, and graphene or its derivatives are currently the most attractive nanomaterials. This paper aims to experimentally evaluate the effects of graphene sulfonate nanosheets (GSNSs) on physical, mechanical, and thermal properties of sacrificial concrete. The microstructure, porosity, compressive strength, thermal analysis, coefficient of thermal expansion, thermal diffusivity and ablation behaviour of sacrificial concrete with different contents of GSNSs before and during exposure to various temperatures up to 1000 ºC were comprehensively investigated. A new experimental apparatus was proposed and used to measure the compressive strength of sacrificial concrete during elevated temperature exposure. It was found that, (1) the compressive strength, thermal diffusivity, and decomposition enthalpy of sacrificial concrete increased by 10.14-23.11%, 6.51-27.66%, and 7.48%, respectively, when adding 0.1 wt% GSNSs; (2) the porosity and ablation velocity of sacrificial concrete reduced by 2.00-6.00% and 7.48%, respectively, due to the incorporation of GSNSs.

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Section: Densitymentioning

confidence: 65%

Effects of graphene sulfonate nanosheets on mechanical and thermal properties of sacrificial concrete during high temperature exposure

Chu

Jiang

Sun

et al. 2017

Cement and Concrete Composites

View full text Add to dashboard Cite

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“…So the residual mass of prisms reduces with the increase of elevated temperature. The mass loss is mainly due to the loss of chemically bound water at elevated temperatures [30].…”

Section: Thermal Response and Observation During Elevated Temperaturementioning

confidence: 99%

Effect of strain rate on compressive behaviour of high-strength concrete after exposure to elevated temperatures

Xiao

Xie

et al. 2016

Fire Safety Journal

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“…The construction industry is a potential sector for utilization of waste glass. In this regard, use of solid wastes for manufacturing the building materials with high thermal insulation properties is an effective approach toward sustainable development and decreasing the energy consumption in buildings [4][5][6]. It has been reported that the incorporation of insolation materials in the building can reduce the indoor temperature fluctuation up to 4 • C that would save 10-30% of energy usage [1,2].…”

Section: Introductionmentioning

confidence: 99%

Thermal and Mechanical Properties of Cement Mortar Composite Containing Recycled Expanded Glass Aggregate and Nano Titanium Dioxide

et al. 2020

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One of the growing concerns in the construction industry is energy consumption and energy efficiency in residential buildings. Moreover, management of non-degradable solid glass wastes is becoming a critical issue worldwide. Accordingly, incorporation of recycled expanded glass aggregates (EGA) as a substitution for natural fine aggregate in cement composites would be a sustainable solution in terms of energy consumption in the buildings and waste management. This experimental research aims to investigate the effects of EGA on fresh and hardened properties and thermal insulating performance of cement mortar. To enhance the mechanical properties and water resistance of the EGA-mortar, nano titanium dioxide (nTiO2) was used as nanofillers. The results showed an increase in workability and water absorption of the EGA-mortar. In addition, a significant decrease in bulk density and compressive strength observed by incorporating EGA into the cement mortar. The EGA-mortar exhibited a low heat transfer rate and excellent thermal insulation property. Furthermore, inclusion of nTiO2 increased compressive strength and water resistance of EGA-mortar, however, their heat transfer rate was increased. The results demonstrated that EGA-mortar can be integrated into the building envelop or non-load bearing elements such as wall partition as a thermal resistance to reduce the energy consumption in residential buildings.

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Thermal behaviour of novel lightweight concrete at ambient and elevated temperatures: Experimental, modelling and parametric studies

Cited by 60 publications

References 26 publications

Effects of graphene sulfonate nanosheets on mechanical and thermal properties of sacrificial concrete during high temperature exposure

Effects of graphene sulfonate nanosheets on mechanical and thermal properties of sacrificial concrete during high temperature exposure

Effect of strain rate on compressive behaviour of high-strength concrete after exposure to elevated temperatures

Thermal and Mechanical Properties of Cement Mortar Composite Containing Recycled Expanded Glass Aggregate and Nano Titanium Dioxide

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