MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE

It has been a long time since humans started using waste materials in engineering applications. This approach not only reduces the yield of waste, while minimizing the costs of disposal but also limit the cost of new materials. In the field of construction, the reuse of waste concretes has been a s...

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Main Authors: YILENG DU, HONGJUAN ZUO
Format: Article
Language:English
Published: Alma Mater Publishing House "Vasile Alecsandri" University of Bacau 2017-12-01
Series:Journal of Engineering Studies and Research
Subjects:
Online Access:https://jesr.ub.ro/index.php/1/article/view/68
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author YILENG DU
HONGJUAN ZUO
author_facet YILENG DU
HONGJUAN ZUO
author_sort YILENG DU
collection DOAJ
description It has been a long time since humans started using waste materials in engineering applications. This approach not only reduces the yield of waste, while minimizing the costs of disposal but also limit the cost of new materials. In the field of construction, the reuse of waste concretes has been a strong research in recent years. However the processing of the wastes normally involves complicated processing and lab equipment. In this report we crush and dehydrate waste concretes with normal lab facilities and re-make the cement composites. The waste concretes were crushed and dehydrated at two temperatures, 1280 and 1400 ˚C. To balance the concentration of silica and lime, extra lime at 28.5 % and 16 % were added to the waste concretes. The resultant materials were evaluated with respect to the chemical composition, mechanical properties, and microstructures. It is concluded that the material dehydrated at 1400 ˚C and containing 28.5 % lime presents the best mechanical performance. This report presents a simple and inexpensive method to reuse the waste concretes in applications such as pavements.
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institution Kabale University
issn 2068-7559
2344-4932
language English
publishDate 2017-12-01
publisher Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
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spelling doaj-art-239d8d2fcd80485d9e8771506fd09a772025-02-09T11:38:01ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauJournal of Engineering Studies and Research2068-75592344-49322017-12-01234MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETEYILENG DU0HONGJUAN ZUO1University Technical College Portsmouth, 468 London Rd, Portsmouth PO2 9RN, UKUniversity Technical College Portsmouth, 468 London Rd, Portsmouth PO2 9RN, UK It has been a long time since humans started using waste materials in engineering applications. This approach not only reduces the yield of waste, while minimizing the costs of disposal but also limit the cost of new materials. In the field of construction, the reuse of waste concretes has been a strong research in recent years. However the processing of the wastes normally involves complicated processing and lab equipment. In this report we crush and dehydrate waste concretes with normal lab facilities and re-make the cement composites. The waste concretes were crushed and dehydrated at two temperatures, 1280 and 1400 ˚C. To balance the concentration of silica and lime, extra lime at 28.5 % and 16 % were added to the waste concretes. The resultant materials were evaluated with respect to the chemical composition, mechanical properties, and microstructures. It is concluded that the material dehydrated at 1400 ˚C and containing 28.5 % lime presents the best mechanical performance. This report presents a simple and inexpensive method to reuse the waste concretes in applications such as pavements. https://jesr.ub.ro/index.php/1/article/view/68waste concreteregenerated cementmechanical propertiesmicrostructures
spellingShingle YILENG DU
HONGJUAN ZUO
MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE
Journal of Engineering Studies and Research
waste concrete
regenerated cement
mechanical properties
microstructures
title MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE
title_full MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE
title_fullStr MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE
title_full_unstemmed MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE
title_short MECHANICAL PROPERTIES AND MICROSTRUCTURES OF REGENERATED CEMENT FROM WASTE CONCRETE
title_sort mechanical properties and microstructures of regenerated cement from waste concrete
topic waste concrete
regenerated cement
mechanical properties
microstructures
url https://jesr.ub.ro/index.php/1/article/view/68
work_keys_str_mv AT yilengdu mechanicalpropertiesandmicrostructuresofregeneratedcementfromwasteconcrete
AT hongjuanzuo mechanicalpropertiesandmicrostructuresofregeneratedcementfromwasteconcrete