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Study on the influence of attached mortar content on the properties of recycled concrete aggregate

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Bibliographic Details
Main Author: Nursyazwani, Zainudin
Other Authors: Roshazita Che Amat
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2015
Subjects:
Aggregates (Building materials)
Recycled concrete aggregate
Mortar
Aggregates > Analysis
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40388
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spelling my.unimap-403882015-07-29T03:45:22Z Study on the influence of attached mortar content on the properties of recycled concrete aggregate Nursyazwani, Zainudin Roshazita Che Amat Aggregates (Building materials) Recycled concrete aggregate Mortar Aggregates -- Analysis Access is limited to UniMAP community. Recycled concrete aggregates mainly differ from natural aggregates in that they are composed of two different materials: natural aggregate and cement mortar attached. There is no general study about the quantitative influence of mortar content on other properties of the recycled aggregate. The objective of this study has been to obtain experimental relationships between the attached mortar content and other recycled aggregate properties. The present research program, in which concrete has been produced with different ratios of admixtures (25%, 50% and 75%) of mortar with fine recycled concrete aggregates, has been divided in five parts: particle size analysis, slump, compressive strength, density and absorption carried out and also from literature review. From particle size distribution obtained a fraction suitable for FRC should be smaller than 4 mm and the percentage of particles smaller than 0.063 mm. Besides that, slump for substitution concrete mix shows decreases (75% attached mortar value slump 30 mm). The results obtained for the 28 days compressive strength of that substitution concrete mix possesses higher (38.5 MPa) compare than NC (36 MPa). All test cubes results are acceptable according concrete Grade 20 which means all specimens should have compressive strength higher than 20 MPa. This increase was due the greater water absorption of the substitution ratio (4.4% vs. 2.7%). Then, absorption and density results are related. The lower density 2069.52 kg/m³ for 75% mortar content compare Average value for density of normal aggregate, set on 2236.70 kg/m³ respectively. The higher amount of attached mortar, the lower the density is. 2015-07-29T03:45:22Z 2015-07-29T03:45:22Z 2013-06 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40388 en Universiti Malaysia Perlis (UniMAP) School of Environmental Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Aggregates (Building materials)
Recycled concrete aggregate
Mortar
Aggregates -- Analysis
spellingShingle Aggregates (Building materials)
Recycled concrete aggregate
Mortar
Aggregates -- Analysis
Nursyazwani, Zainudin
Study on the influence of attached mortar content on the properties of recycled concrete aggregate
description Access is limited to UniMAP community.
author2 Roshazita Che Amat
author_facet Roshazita Che Amat
Nursyazwani, Zainudin
format Learning Object
author Nursyazwani, Zainudin
author_sort Nursyazwani, Zainudin
title Study on the influence of attached mortar content on the properties of recycled concrete aggregate
title_short Study on the influence of attached mortar content on the properties of recycled concrete aggregate
title_full Study on the influence of attached mortar content on the properties of recycled concrete aggregate
title_fullStr Study on the influence of attached mortar content on the properties of recycled concrete aggregate
title_full_unstemmed Study on the influence of attached mortar content on the properties of recycled concrete aggregate
title_sort study on the influence of attached mortar content on the properties of recycled concrete aggregate
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2015
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/40388
_version_ 1643799356301639680
score 13.222552

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