Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis
Abstract The use of alternative and locally available materials is encouraged in the construction industry to improve its sustainability. Desert regions with shortages in freshwater and river sand as fine aggregates in concrete have to search for alternative materials such as seawater, dune sand, an...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-09-01
|
| Series: | International Journal of Concrete Structures and Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40069-023-00613-4 |
| _version_ | 1797699537852170240 |
|---|---|
| author | Pawel Sikora Levent Afsar Sundar Rathnarajan Morteza Nikravan Sang-Yeop Chung Dietmar Stephan Mohamed Abd Elrahman |
| author_facet | Pawel Sikora Levent Afsar Sundar Rathnarajan Morteza Nikravan Sang-Yeop Chung Dietmar Stephan Mohamed Abd Elrahman |
| author_sort | Pawel Sikora |
| collection | DOAJ |
| description | Abstract The use of alternative and locally available materials is encouraged in the construction industry to improve its sustainability. Desert regions with shortages in freshwater and river sand as fine aggregates in concrete have to search for alternative materials such as seawater, dune sand, and waste glass powder to produce lightweight concretes. The potential negative effects of adding these alternative materials can be reduced by adding nanosilica to the cementitious system at very low quantities. This study evaluates the feasibility of using these alternative materials and nanosilica (NS) in producing lightweight aggregate concretes (LWACs). A systematic study was carried out to understand the synergistic effect of nanosilica and seawater in improving the hydration characteristics of the developed cementitious systems. Also, the effect of these alternative materials on the fresh properties of the cementitious system was assessed by slump flow tests. The evolution of compressive strength at early ages was investigated after 2, 7, and 28 days of moist curing and an improvement in the strength development in concretes with seawater was observed. Furthermore, the integrity of the developed LWACs was analyzed using oven-dry density, thermal conductivity, water porosity and shrinkage measurements. Moreover, the capillary porosity and sorptivity measurements revealed the denser microstructure in the nano-modified seawater lightweight concretes. In the end, the life-cycle assessment study calculated the benefit of alternative materials in terms of carbon footprint and water consumption. As an outcome, a sustainable solution for producing LWACs containing seawater, dune sand or glass powder was proposed. |
| first_indexed | 2024-03-12T04:09:15Z |
| format | Article |
| id | doaj.art-c4a35237fdaf4ba2b30b9b9c2b368dfe |
| institution | Directory Open Access Journal |
| issn | 2234-1315 |
| language | English |
| last_indexed | 2024-03-12T04:09:15Z |
| publishDate | 2023-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Concrete Structures and Materials |
| spelling | doaj.art-c4a35237fdaf4ba2b30b9b9c2b368dfe2023-09-03T11:09:18ZengSpringerOpenInternational Journal of Concrete Structures and Materials2234-13152023-09-0117111910.1186/s40069-023-00613-4Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle AnalysisPawel Sikora0Levent Afsar1Sundar Rathnarajan2Morteza Nikravan3Sang-Yeop Chung4Dietmar Stephan5Mohamed Abd Elrahman6Building Materials and Construction Chemistry, Technische Universität BerlinBuilding Materials and Construction Chemistry, Technische Universität BerlinFaculty of Civil and Environmental Engineering, West Pomeranian University of Technology in SzczecinBuilding Materials and Construction Chemistry, Technische Universität BerlinDepartment of Civil and Environmental Engineering, Yonsei UniversityBuilding Materials and Construction Chemistry, Technische Universität BerlinStructural Engineering Department, Faculty of Engineering, Mansoura UniversityAbstract The use of alternative and locally available materials is encouraged in the construction industry to improve its sustainability. Desert regions with shortages in freshwater and river sand as fine aggregates in concrete have to search for alternative materials such as seawater, dune sand, and waste glass powder to produce lightweight concretes. The potential negative effects of adding these alternative materials can be reduced by adding nanosilica to the cementitious system at very low quantities. This study evaluates the feasibility of using these alternative materials and nanosilica (NS) in producing lightweight aggregate concretes (LWACs). A systematic study was carried out to understand the synergistic effect of nanosilica and seawater in improving the hydration characteristics of the developed cementitious systems. Also, the effect of these alternative materials on the fresh properties of the cementitious system was assessed by slump flow tests. The evolution of compressive strength at early ages was investigated after 2, 7, and 28 days of moist curing and an improvement in the strength development in concretes with seawater was observed. Furthermore, the integrity of the developed LWACs was analyzed using oven-dry density, thermal conductivity, water porosity and shrinkage measurements. Moreover, the capillary porosity and sorptivity measurements revealed the denser microstructure in the nano-modified seawater lightweight concretes. In the end, the life-cycle assessment study calculated the benefit of alternative materials in terms of carbon footprint and water consumption. As an outcome, a sustainable solution for producing LWACs containing seawater, dune sand or glass powder was proposed.https://doi.org/10.1186/s40069-023-00613-4Lightweight concreteDune sandWaste glassSeawaterShrinkageLife cycle assessment |
| spellingShingle | Pawel Sikora Levent Afsar Sundar Rathnarajan Morteza Nikravan Sang-Yeop Chung Dietmar Stephan Mohamed Abd Elrahman Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis International Journal of Concrete Structures and Materials Lightweight concrete Dune sand Waste glass Seawater Shrinkage Life cycle assessment |
| title | Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis |
| title_full | Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis |
| title_fullStr | Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis |
| title_full_unstemmed | Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis |
| title_short | Seawater-Mixed Lightweight Aggregate Concretes with Dune Sand, Waste Glass and Nanosilica: Experimental and Life Cycle Analysis |
| title_sort | seawater mixed lightweight aggregate concretes with dune sand waste glass and nanosilica experimental and life cycle analysis |
| topic | Lightweight concrete Dune sand Waste glass Seawater Shrinkage Life cycle assessment |
| url | https://doi.org/10.1186/s40069-023-00613-4 |
| work_keys_str_mv | AT pawelsikora seawatermixedlightweightaggregateconcreteswithdunesandwasteglassandnanosilicaexperimentalandlifecycleanalysis AT leventafsar seawatermixedlightweightaggregateconcreteswithdunesandwasteglassandnanosilicaexperimentalandlifecycleanalysis AT sundarrathnarajan seawatermixedlightweightaggregateconcreteswithdunesandwasteglassandnanosilicaexperimentalandlifecycleanalysis AT mortezanikravan seawatermixedlightweightaggregateconcreteswithdunesandwasteglassandnanosilicaexperimentalandlifecycleanalysis AT sangyeopchung seawatermixedlightweightaggregateconcreteswithdunesandwasteglassandnanosilicaexperimentalandlifecycleanalysis AT dietmarstephan seawatermixedlightweightaggregateconcreteswithdunesandwasteglassandnanosilicaexperimentalandlifecycleanalysis AT mohamedabdelrahman seawatermixedlightweightaggregateconcreteswithdunesandwasteglassandnanosilicaexperimentalandlifecycleanalysis |