Palm fruit bunch fiber impact on compressive strength of cement mortar with different fine aggregate types
Depletion of high-quality natural sand deposits and sustainability concerns are popularizingmanufactured sand use in cementitious composites. Meanwhile, palm fruit bunch fiber (PFBF)improves the properties of cementitious composites, but it is unclear how PFBF interacts withdifferent fine aggregates...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Yildiz Technical University
2025-03-01
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| Series: | Journal of Sustainable Construction Materials and Technologies |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/en/download/article-file/4733916 |
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| Summary: | Depletion of high-quality natural sand deposits and sustainability concerns are popularizingmanufactured sand use in cementitious composites. Meanwhile, palm fruit bunch fiber (PFBF)improves the properties of cementitious composites, but it is unclear how PFBF interacts withdifferent fine aggregates to affect mortar strength. This study investigated the impact of PFBFon the compressive strength of cement mortars containing manufactured sand (granite quar-ry dust) and natural sands (river and pit). The aggregates were used with Portland cement tofabricate mortar cubes, which were tested after 28 days. The control mortars (0% PFBF) ofquarry dust, river sand, and pit sand recorded strength of 24.2 MPa, 21.5 MPa, and 10.4 MPa,respectively. At the optimum fiber content, the strength of the quarry dust and pit sand mor-tars increased marginally to 24.7 MPa and 12.2 MPa, respectively. However, river sand mortarstrength considerably increased to 26.1 MPa. Interestingly, the quarry dust and pit sand mortarsgenerally experienced strength loss before reaching their peak at 2.0% and 2.5% fiber content,respectively. In comparison, river sand mortar consistently gained strength before peaking at2.5% PFBF. Hence, pre-optimum fiber contents could enhance river sand mortar strength buthinder quarry dust and pit sand mortar strengths. By standardizing the PFBF-reinforced mortarstrengths against the control strengths, PFBF enhanced pit sand mortar strength the most, fol-lowed by river sand mortar, but it mainly reduced quarry dust mortar strength. Mortar designmust, therefore, optimize PFBF dosage considering the unique characteristics of each sand type. |
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| ISSN: | 2458-973X |