| Title |
Sustainable admixtures to enhance long-term strength and durability properties of eco-concrete: an innovative use of Saudi agro-industrial by-products |
| ID_Doc |
13900 |
| Authors |
Amran, M; Onaizi, A |
| Title |
Sustainable admixtures to enhance long-term strength and durability properties of eco-concrete: an innovative use of Saudi agro-industrial by-products |
| Year |
2024 |
| Published |
|
| DOI |
10.1108/IJBPA-03-2024-0069 |
| Abstract |
PurposeLow-carbon concrete represents a new direction in mitigating the global warming effects caused by clinker manufacturing. Utilizing Saudi agro-industrial by-products as an alternative to cement is a key support in reducing clinker production and promoting innovation in infrastructure and circular economy concepts, toward decarbonization in the construction industry. The use of fly ash (FA) as a cement alternative has been researched and proven effective in enhancing the durability of FA-based concrete, especially at lower replacement levels. However, at higher replacement levels, a noticeable impediment in mechanical strength indicators limits the use of this material.Design/methodology/approachIn this study, low-carbon concrete mixes were designed by replacing 50% of the cement with FA. Varying ratios of nano-sized glass powder (4 and 6% of cement weight) were used as nanomaterial additives to enhance the mechanical properties and durability of the designed concrete. In addition, a 10% of the mixing water was replaced with EMs dosage.FindingsThe results obtained showed a significant positive impact on resistance and durability properties when replacing 10% of the mixing water with effective microorganisms (EMs) broth and incorporating nanomaterial additives. The optimal mix ratios were those designed with 10% EMs and 4-6% nano-sized glass powder additives. However, it can be concluded that advancements in eco-friendly concrete additive technologies have made significant contributions to the development of sophisticated concrete varieties.Originality/valueThis study focused at developing nanomaterial additives from Saudi industrial wastes and at presenting a cost-effective and feasible solution for enhancing the properties of FA-based concrete. It has also been found that the inclusion of EMs contributes effectively to enhancing the concrete's resistance properties. |
| Author Keywords |
Eco-friendly concrete; Saudi agro-industrial by-products; Fly ash and nano-sized glass powder; Sustainability; Acid and sulfate attacks |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Emerging Sources Citation Index (ESCI) |
| EID |
WOS:001225581600001 |
| WoS Category |
Construction & Building Technology |
| Research Area |
Construction & Building Technology |
| PDF |
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