Advancements in pumice-based concrete: A comprehensive review
This review critically examines the emerging role of pumice as both a lightweight aggregate and a supplementary cementitious material (SCM) in sustainable concrete technologies. Characterized by its high amorphous silica content and porous morphology, pumice exhibits intrinsic pozzolanic reactivity...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825001649 |
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| author | Karan Moolchandani |
| author_facet | Karan Moolchandani |
| author_sort | Karan Moolchandani |
| collection | DOAJ |
| description | This review critically examines the emerging role of pumice as both a lightweight aggregate and a supplementary cementitious material (SCM) in sustainable concrete technologies. Characterized by its high amorphous silica content and porous morphology, pumice exhibits intrinsic pozzolanic reactivity and internal curing potential—enabling enhanced long-term performance across structural and non-structural applications. Experimental findings indicate that cement replacement with pumice up to 25 % can improve late-age compressive strength by 6–11 %, while reducing chloride permeability by 22–35 % and improving sulfate resistance by up to 28 %. When used as an aggregate, pumice reduces autogenous shrinkage by as much as 75 %, and in thermal applications, pumice–PCM systems lower thermal conductivity by 30–56 % and reduce surface temperatures by up to 42 %. Despite these advantages, early-age strength limitations, workability loss, and freeze–thaw vulnerability remain key challenges. The review synthesizes insights from over 60 recent studies, benchmarking pumice performance against fly ash, slag, and alkali-activated systems. It further identifies gaps in calorimetric analysis, ITZ evolution, and application-specific design protocols. Overall, pumice presents a viable, low-carbon material solution for next-generation concrete aligned with circular economy and climate resilience objectives. |
| format | Article |
| id | doaj-art-b834fd2e5590486c86ec5143b4604f1d |
| institution | OA Journals |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-b834fd2e5590486c86ec5143b4604f1d2025-08-20T02:17:40ZengElsevierNext Materials2949-82282025-07-01810064610.1016/j.nxmate.2025.100646Advancements in pumice-based concrete: A comprehensive reviewKaran Moolchandani0Civil Engineering Department, Punjab Engineering College (Deemed to be University), Chandigarh 160012, IndiaThis review critically examines the emerging role of pumice as both a lightweight aggregate and a supplementary cementitious material (SCM) in sustainable concrete technologies. Characterized by its high amorphous silica content and porous morphology, pumice exhibits intrinsic pozzolanic reactivity and internal curing potential—enabling enhanced long-term performance across structural and non-structural applications. Experimental findings indicate that cement replacement with pumice up to 25 % can improve late-age compressive strength by 6–11 %, while reducing chloride permeability by 22–35 % and improving sulfate resistance by up to 28 %. When used as an aggregate, pumice reduces autogenous shrinkage by as much as 75 %, and in thermal applications, pumice–PCM systems lower thermal conductivity by 30–56 % and reduce surface temperatures by up to 42 %. Despite these advantages, early-age strength limitations, workability loss, and freeze–thaw vulnerability remain key challenges. The review synthesizes insights from over 60 recent studies, benchmarking pumice performance against fly ash, slag, and alkali-activated systems. It further identifies gaps in calorimetric analysis, ITZ evolution, and application-specific design protocols. Overall, pumice presents a viable, low-carbon material solution for next-generation concrete aligned with circular economy and climate resilience objectives.http://www.sciencedirect.com/science/article/pii/S2949822825001649PumiceLightweight concreteSupplementary cementitious materialsSustainable construction |
| spellingShingle | Karan Moolchandani Advancements in pumice-based concrete: A comprehensive review Next Materials Pumice Lightweight concrete Supplementary cementitious materials Sustainable construction |
| title | Advancements in pumice-based concrete: A comprehensive review |
| title_full | Advancements in pumice-based concrete: A comprehensive review |
| title_fullStr | Advancements in pumice-based concrete: A comprehensive review |
| title_full_unstemmed | Advancements in pumice-based concrete: A comprehensive review |
| title_short | Advancements in pumice-based concrete: A comprehensive review |
| title_sort | advancements in pumice based concrete a comprehensive review |
| topic | Pumice Lightweight concrete Supplementary cementitious materials Sustainable construction |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825001649 |
| work_keys_str_mv | AT karanmoolchandani advancementsinpumicebasedconcreteacomprehensivereview |