Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and Microstructure
Sustainability of concrete could be enhanced by incorporating recycled aggregate in the production of concrete. The aim of this study is to assess the effect of using nano-silica (nanoparticles of SiO2) to improve the performance of recycled aggregate concrete (RAC) containing recycled aggregate (RA...
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| Format: | Article |
| Language: | English |
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Tishk International University
2018-06-01
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| Series: | Eurasian Journal of Science and Engineering |
| Subjects: | |
| Online Access: | http://eajse.org/wp-content/uploads/2015/12/Nano-Silica-Modified-Recycled-Aggregate-Concrete.pdf |
| _version_ | 1797709958837436416 |
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| author | Khaleel H. Younis |
| author_facet | Khaleel H. Younis |
| author_sort | Khaleel H. Younis |
| collection | DOAJ |
| description | Sustainability of concrete could be enhanced by incorporating recycled aggregate in the production of concrete. The aim of this study is to assess the effect of using nano-silica (nanoparticles of SiO2) to improve the performance of recycled aggregate concrete (RAC) containing recycled aggregate (RA) derived from processing construction and demolition waste of concrete buildings. In this study, compressive strength of concrete and the microstructure of RA and RAC with and without nanoparticles of SiO2 were examined. Nine mixes: one control mix with natural aggregate without nanoparticles, two mixes with RA at 50% and 100% contents (without nano-silica) and three mixes for each content of RA with nano-silica content of 0.4, 0.8 and 1.2% (by mass of cement) were investigated. The results showed that nanoparticles of silica can improve the compressive strength and modify the microstructure of RAC. |
| first_indexed | 2024-03-12T06:45:23Z |
| format | Article |
| id | doaj.art-94e748f65f264e56973b26e264bdf37b |
| institution | Directory Open Access Journal |
| issn | 2414-5629 2414-5602 |
| language | English |
| last_indexed | 2024-03-12T06:45:23Z |
| publishDate | 2018-06-01 |
| publisher | Tishk International University |
| record_format | Article |
| series | Eurasian Journal of Science and Engineering |
| spelling | doaj.art-94e748f65f264e56973b26e264bdf37b2023-09-03T00:39:57ZengTishk International UniversityEurasian Journal of Science and Engineering2414-56292414-56022018-06-013316717610.23918/eajse.v3i3p167Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and MicrostructureKhaleel H. YounisSustainability of concrete could be enhanced by incorporating recycled aggregate in the production of concrete. The aim of this study is to assess the effect of using nano-silica (nanoparticles of SiO2) to improve the performance of recycled aggregate concrete (RAC) containing recycled aggregate (RA) derived from processing construction and demolition waste of concrete buildings. In this study, compressive strength of concrete and the microstructure of RA and RAC with and without nanoparticles of SiO2 were examined. Nine mixes: one control mix with natural aggregate without nanoparticles, two mixes with RA at 50% and 100% contents (without nano-silica) and three mixes for each content of RA with nano-silica content of 0.4, 0.8 and 1.2% (by mass of cement) were investigated. The results showed that nanoparticles of silica can improve the compressive strength and modify the microstructure of RAC.http://eajse.org/wp-content/uploads/2015/12/Nano-Silica-Modified-Recycled-Aggregate-Concrete.pdfNanoparticles SiO2Compressive StrengthRecycled AggregateSEM |
| spellingShingle | Khaleel H. Younis Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and Microstructure Eurasian Journal of Science and Engineering Nanoparticles SiO2 Compressive Strength Recycled Aggregate SEM |
| title | Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and Microstructure |
| title_full | Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and Microstructure |
| title_fullStr | Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and Microstructure |
| title_full_unstemmed | Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and Microstructure |
| title_short | Nano-Silica Modified Recycled Aggregate Concrete: Mechanical Properties and Microstructure |
| title_sort | nano silica modified recycled aggregate concrete mechanical properties and microstructure |
| topic | Nanoparticles SiO2 Compressive Strength Recycled Aggregate SEM |
| url | http://eajse.org/wp-content/uploads/2015/12/Nano-Silica-Modified-Recycled-Aggregate-Concrete.pdf |
| work_keys_str_mv | AT khaleelhyounis nanosilicamodifiedrecycledaggregateconcretemechanicalpropertiesandmicrostructure |