Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environments
The aim of this study is to investigate the influence of natural pozzolana (NP) and silica fume (SF) as a partial replacement for ordinary Portland cement (OPC) to enhance the performance of fiber-cement mortar subjected to harsh environments. The samples were immersed in seawater mixed with sodium...
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De Gruyter
2025-07-01
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| Series: | Reviews on Advanced Materials Science |
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| Online Access: | https://doi.org/10.1515/rams-2025-0123 |
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| author | Shubaili Mohammed Zeyad Abdullah M. |
| author_facet | Shubaili Mohammed Zeyad Abdullah M. |
| author_sort | Shubaili Mohammed |
| collection | DOAJ |
| description | The aim of this study is to investigate the influence of natural pozzolana (NP) and silica fume (SF) as a partial replacement for ordinary Portland cement (OPC) to enhance the performance of fiber-cement mortar subjected to harsh environments. The samples were immersed in seawater mixed with sodium sulfate (Na2SO4) at a rate of 5 kg per 100 L to represent the harsh environment of surface groundwater in offshore soil. Mortar mixes were made by substituting the mass of OPC with NP and SF for 0, 5, 10, and 20%. The mortar samples underwent 90 cycles of drying and wetting, with 48 h allocated for each phase, for a duration of 360 days. Compressive strength (CS) and flexural strength (FS) tests were conducted on samples aged 7, 28, 90, 180, and 360 days, while cement samples after 28, 90, 180, and 360 curing days were examined for absorption and initial surface absorption capacity. The study indicates that the curing of control samples with seawater resulted in a slight decrease in CS and FS, up to 2.4 and 7.4%, respectively. Despite the application of seawater curing, the mortar samples containing NP and SF exhibited enhanced CS (up to 10.8% for SF), FS (up to 27.3% for NP and 30.7% for SF), and water resistance (up to 18.5% for NP and 24.9% for SF) compared to the OPC. |
| format | Article |
| id | doaj-art-867bfcb9c4f44e3b9da82d918054b911 |
| institution | OA Journals |
| issn | 1605-8127 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Reviews on Advanced Materials Science |
| spelling | doaj-art-867bfcb9c4f44e3b9da82d918054b9112025-08-20T02:37:14ZengDe GruyterReviews on Advanced Materials Science1605-81272025-07-01641pp. 51552210.1515/rams-2025-0123Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environmentsShubaili Mohammed0Zeyad Abdullah M.1Civil and Architectural Engineering Department, College of Engineering and Computer Sciences, Jazan University, Jazan, Saudi ArabiaCivil and Architectural Engineering Department, College of Engineering and Computer Sciences, Jazan University, Jazan, Saudi ArabiaThe aim of this study is to investigate the influence of natural pozzolana (NP) and silica fume (SF) as a partial replacement for ordinary Portland cement (OPC) to enhance the performance of fiber-cement mortar subjected to harsh environments. The samples were immersed in seawater mixed with sodium sulfate (Na2SO4) at a rate of 5 kg per 100 L to represent the harsh environment of surface groundwater in offshore soil. Mortar mixes were made by substituting the mass of OPC with NP and SF for 0, 5, 10, and 20%. The mortar samples underwent 90 cycles of drying and wetting, with 48 h allocated for each phase, for a duration of 360 days. Compressive strength (CS) and flexural strength (FS) tests were conducted on samples aged 7, 28, 90, 180, and 360 days, while cement samples after 28, 90, 180, and 360 curing days were examined for absorption and initial surface absorption capacity. The study indicates that the curing of control samples with seawater resulted in a slight decrease in CS and FS, up to 2.4 and 7.4%, respectively. Despite the application of seawater curing, the mortar samples containing NP and SF exhibited enhanced CS (up to 10.8% for SF), FS (up to 27.3% for NP and 30.7% for SF), and water resistance (up to 18.5% for NP and 24.9% for SF) compared to the OPC.https://doi.org/10.1515/rams-2025-0123cement mortarscuring timeharsh environmentmicrostructurepozzolanic materialsseawatersilica fumewater absorption |
| spellingShingle | Shubaili Mohammed Zeyad Abdullah M. Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environments Reviews on Advanced Materials Science cement mortars curing time harsh environment microstructure pozzolanic materials seawater silica fume water absorption |
| title | Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environments |
| title_full | Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environments |
| title_fullStr | Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environments |
| title_full_unstemmed | Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environments |
| title_short | Effect of volcanic pumice powder on the properties of fiber-reinforced cement mortars in aggressive environments |
| title_sort | effect of volcanic pumice powder on the properties of fiber reinforced cement mortars in aggressive environments |
| topic | cement mortars curing time harsh environment microstructure pozzolanic materials seawater silica fume water absorption |
| url | https://doi.org/10.1515/rams-2025-0123 |
| work_keys_str_mv | AT shubailimohammed effectofvolcanicpumicepowderonthepropertiesoffiberreinforcedcementmortarsinaggressiveenvironments AT zeyadabdullahm effectofvolcanicpumicepowderonthepropertiesoffiberreinforcedcementmortarsinaggressiveenvironments |