Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and Analyses
The shortage of sand resources and high-rise building fires are becoming increasingly prominent. Desert sand (DS) with smaller particles can effectively fill the concrete voids and further improve its working performance; it is used as a fine aggregate to produce concrete. This article studied the p...
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Series: | Advances in Civil Engineering |
Online Access: | http://dx.doi.org/10.1155/2021/8863136 |
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doaj-66e180228f804662aea82669f21607aa2021-03-08T02:01:17ZengHindawi LimitedAdvances in Civil Engineering1687-80942021-01-01202110.1155/2021/8863136Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and AnalysesQian Zhang0Haifeng Liu1Qiang Liu2Jialing Che3Weiwu Yang4Jurong Ma5Shu Ing Doh6Kar Sing Lim7College of Civil and Hydraulic EngineeringCollege of Civil and Hydraulic EngineeringCollege of Civil and Hydraulic EngineeringCollege of Civil and Hydraulic EngineeringCollege of Civil and Hydraulic EngineeringXinhuan CollegeCollege of EngineeringCollege of EngineeringThe shortage of sand resources and high-rise building fires are becoming increasingly prominent. Desert sand (DS) with smaller particles can effectively fill the concrete voids and further improve its working performance; it is used as a fine aggregate to produce concrete. This article studied the performance of desert sand concrete (DSC) against fire resistance by using mathematical modeling for simulation. The stress-strain curves of desert sand mortar (DSM) after elevated temperatures were tested, and the constitutive model was established. By comparing the experiment and simulation results, it was verified that the model is suitable to be adopted in this study. Data from experiment and past literature can serve as parameters for the subsequent simulation. The destruction process of DSC under uniaxial compression after elevated temperature was simulated by using ANSYS. The simulation results indicated that, after elevated temperature, compressive strength reduced with increase of interface thickness. The compressive strength of DSC had a substantially linear increase as the interface compressive strength increased. For two-grade coarse aggregate, the optimum volume content was 45%, and particle size of it showed a significant effect on the compressive strength of DSC. The DSM constitutive model and simulation results can provide a sound theoretical basis and technical support for DSC engineering applications.http://dx.doi.org/10.1155/2021/8863136 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Qian Zhang Haifeng Liu Qiang Liu Jialing Che Weiwu Yang Jurong Ma Shu Ing Doh Kar Sing Lim |
spellingShingle |
Qian Zhang Haifeng Liu Qiang Liu Jialing Che Weiwu Yang Jurong Ma Shu Ing Doh Kar Sing Lim Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and Analyses Advances in Civil Engineering |
author_facet |
Qian Zhang Haifeng Liu Qiang Liu Jialing Che Weiwu Yang Jurong Ma Shu Ing Doh Kar Sing Lim |
author_sort |
Qian Zhang |
title |
Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and Analyses |
title_short |
Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and Analyses |
title_full |
Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and Analyses |
title_fullStr |
Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and Analyses |
title_full_unstemmed |
Study the Fire Resistance of Desert Sand Concrete (DSC) with Interface Phase through Uniaxial Compression Tests and Analyses |
title_sort |
study the fire resistance of desert sand concrete (dsc) with interface phase through uniaxial compression tests and analyses |
publisher |
Hindawi Limited |
series |
Advances in Civil Engineering |
issn |
1687-8094 |
publishDate |
2021-01-01 |
description |
The shortage of sand resources and high-rise building fires are becoming increasingly prominent. Desert sand (DS) with smaller particles can effectively fill the concrete voids and further improve its working performance; it is used as a fine aggregate to produce concrete. This article studied the performance of desert sand concrete (DSC) against fire resistance by using mathematical modeling for simulation. The stress-strain curves of desert sand mortar (DSM) after elevated temperatures were tested, and the constitutive model was established. By comparing the experiment and simulation results, it was verified that the model is suitable to be adopted in this study. Data from experiment and past literature can serve as parameters for the subsequent simulation. The destruction process of DSC under uniaxial compression after elevated temperature was simulated by using ANSYS. The simulation results indicated that, after elevated temperature, compressive strength reduced with increase of interface thickness. The compressive strength of DSC had a substantially linear increase as the interface compressive strength increased. For two-grade coarse aggregate, the optimum volume content was 45%, and particle size of it showed a significant effect on the compressive strength of DSC. The DSM constitutive model and simulation results can provide a sound theoretical basis and technical support for DSC engineering applications. |
url |
http://dx.doi.org/10.1155/2021/8863136 |
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