Cover Image

Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement

In this study, the effect of bentonite (BT) and dolomite (DT) on the mechanical and microstructural properties of concrete was evaluated on nine mixes. Cement was replaced with bentonite and dolomite by weight with varying mix ratios. The mixes are divided as M1 (Control mix), M2 (2.5% BT), M3 (2.5%...

Full description

Saved in:
Bibliographic Details
Main Authors: Israr Ahmad Awan,, Syed Saqib Mehboob,, Raja Wajaht Zahoor Khan,
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2023
Online Access:http://journalarticle.ukm.my/22874/1/02%20%282%29.pdf
http://journalarticle.ukm.my/22874/
https://www.ukm.my/jkukm/volume-3506-2023/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my-ukm.journal.22874
record_format eprints
spelling my-ukm.journal.228742024-01-24T02:49:41Z http://journalarticle.ukm.my/22874/ Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement Israr Ahmad Awan, Syed Saqib Mehboob, Raja Wajaht Zahoor Khan, In this study, the effect of bentonite (BT) and dolomite (DT) on the mechanical and microstructural properties of concrete was evaluated on nine mixes. Cement was replaced with bentonite and dolomite by weight with varying mix ratios. The mixes are divided as M1 (Control mix), M2 (2.5% BT), M3 (2.5% DT), M4 (5% BT), M5 (5% DT), M6 (10% BT), M7 (10% DT), M8 (2.5% BT and 2.5% DT), and M9 (5% BT and 5% DT). Concrete specimens were subjected to mechanical and microstructural analysis tests. Mechanical test results show that the addition of bentonite (2.5%, 5%, and 10% ) leads to an increase in compressive strength (6.31%, 8.94%, and 13.15%) respectively. Similarly, the addition of 2.5% and 5% dolomite enhanced compressive strength by 10.52%, and 8.94% respectively, however, the addition of 10% dolomite reduced compressive strength by 6.8%. Replacement of cement with dolomite and bentonite individually also showed a small contribution to flexural and split tensile strength. Microstructural analysis shows that the addition of bentonite and dolomite filled the microstructure and refined the internal pores contributing to compressive strength. In addition, the replacement of cement with bentonite and dolomite enhanced the formation of CSH gel.Keywords: Bentonite; dolomite; mechanical properties; microstructural analysis Penerbit Universiti Kebangsaan Malaysia 2023 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/22874/1/02%20%282%29.pdf Israr Ahmad Awan, and Syed Saqib Mehboob, and Raja Wajaht Zahoor Khan, (2023) Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement. Jurnal Kejuruteraan, 35 (6). pp. 1279-1287. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-3506-2023/
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description In this study, the effect of bentonite (BT) and dolomite (DT) on the mechanical and microstructural properties of concrete was evaluated on nine mixes. Cement was replaced with bentonite and dolomite by weight with varying mix ratios. The mixes are divided as M1 (Control mix), M2 (2.5% BT), M3 (2.5% DT), M4 (5% BT), M5 (5% DT), M6 (10% BT), M7 (10% DT), M8 (2.5% BT and 2.5% DT), and M9 (5% BT and 5% DT). Concrete specimens were subjected to mechanical and microstructural analysis tests. Mechanical test results show that the addition of bentonite (2.5%, 5%, and 10% ) leads to an increase in compressive strength (6.31%, 8.94%, and 13.15%) respectively. Similarly, the addition of 2.5% and 5% dolomite enhanced compressive strength by 10.52%, and 8.94% respectively, however, the addition of 10% dolomite reduced compressive strength by 6.8%. Replacement of cement with dolomite and bentonite individually also showed a small contribution to flexural and split tensile strength. Microstructural analysis shows that the addition of bentonite and dolomite filled the microstructure and refined the internal pores contributing to compressive strength. In addition, the replacement of cement with bentonite and dolomite enhanced the formation of CSH gel.Keywords: Bentonite; dolomite; mechanical properties; microstructural analysis
format Article
author Israr Ahmad Awan,
Syed Saqib Mehboob,
Raja Wajaht Zahoor Khan,
spellingShingle Israr Ahmad Awan,
Syed Saqib Mehboob,
Raja Wajaht Zahoor Khan,
Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement
author_facet Israr Ahmad Awan,
Syed Saqib Mehboob,
Raja Wajaht Zahoor Khan,
author_sort Israr Ahmad Awan,
title Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement
title_short Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement
title_full Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement
title_fullStr Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement
title_full_unstemmed Experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement
title_sort experimental investigation of mechanical and microstructural properties of concrete containing bentonite and dolomite as a partial replacement of cement
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2023
url http://journalarticle.ukm.my/22874/1/02%20%282%29.pdf
http://journalarticle.ukm.my/22874/
https://www.ukm.my/jkukm/volume-3506-2023/
_version_ 1789425771150835712
score 13.235796

Similar Items