Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate Concrete
The aim of this paper was to examine the feasibility of using nanoparticles of SiO2 (nanosilica) to improve the performance of recycled aggregate concrete (RAC) containing recycled aggregate (RA) derived from processing construction and demolition waste of concrete buildings. The examined properties...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/1512830 |
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| author | Khaleel H. Younis Shelan M. Mustafa |
| author_facet | Khaleel H. Younis Shelan M. Mustafa |
| author_sort | Khaleel H. Younis |
| collection | DOAJ |
| description | The aim of this paper was to examine the feasibility of using nanoparticles of SiO2 (nanosilica) to improve the performance of recycled aggregate concrete (RAC) containing recycled aggregate (RA) derived from processing construction and demolition waste of concrete buildings. The examined properties include compressive strength, splitting tensile strength, and water absorption. The study also includes examining the microstructure of RA and RAC with and without nanoparticles of SiO2. In total, nine mixes were investigated. Two mixes with RA contents of 50% and 100% were investigated and for each RA content; three mixes were prepared with three different nanoparticles dosages 0.4%, 0.8%, and 1.2% (by mass of cement). A control mix with natural aggregate (NA) was also prepared for comparison reasons. The results show that nanoparticles of silica can improve the compressive strength, tensile strength, reduce the water absorption, and modify the microstructure of RAC. |
| format | Article |
| id | doaj-art-a7211f1491de4f7fa0da4504da7a7b31 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a7211f1491de4f7fa0da4504da7a7b312025-02-03T01:10:27ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/15128301512830Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate ConcreteKhaleel H. Younis0Shelan M. Mustafa1Erbil Technology Institute, Erbil Polytechnic University Erbil, Kurdistan Region, IraqErbil Technology Institute, Erbil Polytechnic University Erbil, Kurdistan Region, IraqThe aim of this paper was to examine the feasibility of using nanoparticles of SiO2 (nanosilica) to improve the performance of recycled aggregate concrete (RAC) containing recycled aggregate (RA) derived from processing construction and demolition waste of concrete buildings. The examined properties include compressive strength, splitting tensile strength, and water absorption. The study also includes examining the microstructure of RA and RAC with and without nanoparticles of SiO2. In total, nine mixes were investigated. Two mixes with RA contents of 50% and 100% were investigated and for each RA content; three mixes were prepared with three different nanoparticles dosages 0.4%, 0.8%, and 1.2% (by mass of cement). A control mix with natural aggregate (NA) was also prepared for comparison reasons. The results show that nanoparticles of silica can improve the compressive strength, tensile strength, reduce the water absorption, and modify the microstructure of RAC.http://dx.doi.org/10.1155/2018/1512830 |
| spellingShingle | Khaleel H. Younis Shelan M. Mustafa Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate Concrete Advances in Materials Science and Engineering |
| title | Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate Concrete |
| title_full | Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate Concrete |
| title_fullStr | Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate Concrete |
| title_full_unstemmed | Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate Concrete |
| title_short | Feasibility of Using Nanoparticles of SiO2 to Improve the Performance of Recycled Aggregate Concrete |
| title_sort | feasibility of using nanoparticles of sio2 to improve the performance of recycled aggregate concrete |
| url | http://dx.doi.org/10.1155/2018/1512830 |
| work_keys_str_mv | AT khaleelhyounis feasibilityofusingnanoparticlesofsio2toimprovetheperformanceofrecycledaggregateconcrete AT shelanmmustafa feasibilityofusingnanoparticlesofsio2toimprovetheperformanceofrecycledaggregateconcrete |