[HTML][HTML] Suitability of sustainable sand for concrete manufacturing-A complete review of recycled and desert sand substitution

MN Akhtar, KA Bani-Hani, DAH Malkawi… - Results in …, 2024 - Elsevier
Workable, environmentally friendly, sustainable sand concrete was reviewed to replace river
sand for concrete production. The river ecology and the biological balance will be preserved …

[HTML][HTML] Effect of bacteria on uncracked concrete mechanical properties correlated with damage self-healing efficiency–A critical review

MO Osta, F Mukhtar - Developments in the Built Environment, 2024 - Elsevier
Self-healing concrete has established its effectiveness in repairing cracks, ultimately leading
to improved durability. Additionally, there is a need to ensure that other crucial mechanical …

[HTML][HTML] Development of sustainable modified sand concrete: An experimental study

MN Akhtar, M Jameel, Z Ibrahim, NM Bunnori… - Ain Shams Engineering …, 2024 - Elsevier
The present study aims to develop 4 types of sustainable modified sand using various
proportions of desert sand, natural crushed sand, and recycled crushed sand. The …

Study on MICP dust suppression technology in open pit coal mine: Preparation and mechanism of microbial dust suppression material

G Zhou, Y Xu, Y Wang, L Zheng, Y Zhang, L Li… - Journal of …, 2023 - Elsevier
With the recent increases in energy demands, the dust hazards of coal mining caused by
transportation, loading and unloading and other processes are becoming increasingly …

Efficient delignification of wheat straw for microbial lipid production enabled by a novel ternary deep eutectic solvent containing ethylene glycol

J Tan, D Yu, J Yuan, H Wu, H Luo, H Zhang, X Li, H Li… - Fuel, 2023 - Elsevier
Lignocellulose pretreatment often faces the problem of lignin condensation with less
attention to biofuel production from total sugars, which significantly hinders biomass …

Efficient valorization of feather waste by Bacillus cereus IIPK35 for concomitant production of antioxidant keratin hydrolysate and milk-clotting metallo-serine …

A Jana, N Kakkar, SK Halder, AJ Das, T Bhaskar… - Journal of …, 2022 - Elsevier
Keratinase production by Bacillus cereus IIPK35 was investigated under solid-state
fermentation (SSF) and the maximum titer of 648.28 U/gds was revealed. Feather …

[PDF][PDF] Durability assessment of sustainable mortar by incorporating the combination of solid wastes: an experimental study

MN Akhtar, DAH Malkawi, KA Bani-Hani… - Civil Engineering …, 2023 - researchgate.net
The excessive mining of high-quality river sand for cement sand mortar resulted in
environmental impacts and ecological imbalances. The present study aims to produce …

Self-healing by biocomposite containing metakaolin immobilized bacterial spores in concrete using low-cost corn steep liquor media

N Sidhu, S Goyal, MS Reddy - Journal of Sustainable Cement …, 2023 - Taylor & Francis
The present study aimed to develop a biocomposite constituting metakaolin as a suitable
carrier material for immobilizing bacterial spores. The biocomposite was stored at 4° C and …

A comparative study of strength and durability characteristics of concrete and mortar admixture by bacterial calcite precipitation: A review

JN Akhtar, RA Khan, RA Khan, MN Akhtar… - Materials Today …, 2023 - Elsevier
Frequently used concrete is the second most used material after water worldwide, but it is
vulnerable to cracks, leading to decreased durability and service life. Self-healing …

Experimental investigation on strength and durability characteristics of bacteria-based self-compacted concrete with mineral admixtures

JN Akhtar, RA Khan, RA Khan, BS Thomas - Materials Today: Proceedings, 2023 - Elsevier
This study focuses on self-healing microcrack repair in self-compacting concrete (SCC) by
precipitating CaCO3. Five different types of mixes with two distinct cementitious materials …