Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass Concrete

In  this  research,  the  major  problem  of  mass  concrete  (Differences  in  Temperature)  was  studied. Expanded polystyrene and perlite were added in different percentages to investigate the effects on some mechanical properties and thermal conductivity of concrete. Two stages of work were perf...

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Main Authors: Hamid H. Hussein, Omar S. Saeed
Format: Article
Language:English
Published: Tikrit University 2016-07-01
Series:Tikrit Journal of Engineering Sciences
Subjects:
Online Access:http://www.tj-es.com/ojs/index.php/tjes/article/view/553
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author Hamid H. Hussein
Omar S. Saeed
author_facet Hamid H. Hussein
Omar S. Saeed
author_sort Hamid H. Hussein
collection DOAJ
description In  this  research,  the  major  problem  of  mass  concrete  (Differences  in  Temperature)  was  studied. Expanded polystyrene and perlite were added in different percentages to investigate the effects on some mechanical properties and thermal conductivity of concrete. Two stages of work were performed.In first stage, reference mix was designed at proportion (1cement: 1.41sand: 2.72gravel) with (0.4) water cement  ratio.  Four  tests  were  conducted,  these  tests  including  density,  compressive  strength,  flexural strength and thermal conductivity through exponential equation depending on dry density. In the second stage,  polystyrene  beads  and  perlite  were  added  as  volumetric  ratio  with  (10,  15,  20,  25,  and 30) percentages  to  the  original  size  of  reference mix  and  conducted  the  tests  and  study  their  effects. The results showed a significant improvement in thermal insulation and reduced thermal conductivity (40 , 22) % by using (30) % of polystyrene and perlite respectively. The decreasing in some mechanical properties can be seen and this decreasing did  not have serious effects on the design efficiency of the structure which conformed with the specifications.
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spelling doaj.art-72179d8d2cc148448ec5edfbc36242922023-08-02T01:11:35ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892016-07-01231788610.25130/tjes.v23i1.553302Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass ConcreteHamid H. Hussein0Omar S. Saeed1Technical College, MosulTechnical College, MosulIn  this  research,  the  major  problem  of  mass  concrete  (Differences  in  Temperature)  was  studied. Expanded polystyrene and perlite were added in different percentages to investigate the effects on some mechanical properties and thermal conductivity of concrete. Two stages of work were performed.In first stage, reference mix was designed at proportion (1cement: 1.41sand: 2.72gravel) with (0.4) water cement  ratio.  Four  tests  were  conducted,  these  tests  including  density,  compressive  strength,  flexural strength and thermal conductivity through exponential equation depending on dry density. In the second stage,  polystyrene  beads  and  perlite  were  added  as  volumetric  ratio  with  (10,  15,  20,  25,  and 30) percentages  to  the  original  size  of  reference mix  and  conducted  the  tests  and  study  their  effects. The results showed a significant improvement in thermal insulation and reduced thermal conductivity (40 , 22) % by using (30) % of polystyrene and perlite respectively. The decreasing in some mechanical properties can be seen and this decreasing did  not have serious effects on the design efficiency of the structure which conformed with the specifications.http://www.tj-es.com/ojs/index.php/tjes/article/view/553Mass Concrete, Mechanical Properties, Thermal Conductivity, Expanded polystyrene, Perlite.
spellingShingle Hamid H. Hussein
Omar S. Saeed
Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass Concrete
Tikrit Journal of Engineering Sciences
Mass Concrete, Mechanical Properties, Thermal Conductivity, Expanded polystyrene, Perlite.
title Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass Concrete
title_full Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass Concrete
title_fullStr Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass Concrete
title_full_unstemmed Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass Concrete
title_short Effect of Additive of Expanded Polystyrene and Perlite on Some Mechanical Properties and Thermal Conductivity for Mass Concrete
title_sort effect of additive of expanded polystyrene and perlite on some mechanical properties and thermal conductivity for mass concrete
topic Mass Concrete, Mechanical Properties, Thermal Conductivity, Expanded polystyrene, Perlite.
url http://www.tj-es.com/ojs/index.php/tjes/article/view/553
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