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Blended cement containing high volume ground dune sand and ground granulated blast furnace slag for autoclave concrete industry


Citation

Hassan, Omer Abdalla Alawad and Abdulrahman, Alhozaimy and Jaafar, Mohd Saleh and Noor Abdul Aziz, Farah and Al-Negheimish, Abdulaziz (2015) Blended cement containing high volume ground dune sand and ground granulated blast furnace slag for autoclave concrete industry. Applied Mechanics and Materials, 754-755. pp. 395-399. ISSN 1660-9336; ESSN: 1662-7482

Abstract

This paper presents the results of using ground dune sand (GDS) and ground granulated blast furnace slag (slag) as high volume cement replacement materials. In this study, plain and four blended mixtures were fabricated and cured under normal and autoclave conditions. For the blended mixtures, 40% GDS by weight of the total binder materials and different percentages of slag (15%, 30% and 45%) were incorporated as partial cement replacement materials. The effect of curing conditions (normal and autoclave) on the compressive strength of prepared mixtures was studied. The results showed that, for the autoclave cured mixture, up to 85% of cement can be replaced by GDS and slag without significant drop in the compressive strength. Microstructure analyses using scanning electron microscope (SEM) and X-ray diffraction analysis (XRD) were carried out to examine the microscale changes of the hydrated mixtures. The SEM revealed the formation of thin plate-like calcium silicate hydrate and compacted microstructure of autoclave cured mixture. XRD showed the elimination of calcium hydroxide and existence of residual crystalline silica of all blended mixtures.


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Official URL or Download Paper: https://www.scientific.net/AMM.754-755.395

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.4028/www.scientific.net/AMM.754-755.395
Publisher: Trans Tech Publications
Keywords: Ground Dune sand; Slag; Autoclave curing; Microstructure analysis; SEM; XRD
Depositing User: Ms. Ainur Aqidah Hamzah
Date Deposited: 01 Dec 2021 07:47
Last Modified: 01 Dec 2021 07:47
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=
URI: http://psasir.upm.edu.my/id/eprint/43956
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