Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete
In the current study, the size effects of SiO2 nano-particles on compressive, flexural and tensile strength of binary blended concrete were investigated. SiO2 nano-particles with two different sizes of 15 and 80 nm have been used as a partial cement replacement by 0.5, 1.0, 1.5 and 2.0 wt.%. It was...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2010
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/22923/1/Experimental%20investigation%20of%20the%20size%20effects%20of%20SiO2%20nano-particles%20on%20the%20mechanical%20properties%20of%20binary%20blended%20concrete.pdf |
| _version_ | 1825925252258988032 |
|---|---|
| author | Najigivi, Alireza Abdul Rashid, Suraya Abd. Aziz, Farah Nora Aznieta Mohd Salleh, Mohamad Amran |
| author_facet | Najigivi, Alireza Abdul Rashid, Suraya Abd. Aziz, Farah Nora Aznieta Mohd Salleh, Mohamad Amran |
| author_sort | Najigivi, Alireza |
| collection | UPM |
| description | In the current study, the size effects of SiO2 nano-particles on compressive, flexural and tensile strength of binary blended concrete were investigated. SiO2 nano-particles with two different sizes of 15 and 80 nm have been used as a partial cement replacement by 0.5, 1.0, 1.5 and 2.0 wt.%. It was concluded that concrete specimens containing SiO2 particles with average diameter of 15 nm were harder than those containing 80 nm of SiO2 particles at the initial days of curing. But this condition was altered at 90 days of curing. Also from the viewpoint of free energy, it can be concluded that the C–S–H gel formation around the particles with average diameter of 15 nm was more at the primary days of curing. This can be as a result of more nucleation sites that causes acceleration in early age strength. On the other hand, the growth probability of C–S–H gel around the 80 nm particles was more at 90 days of moist curing. This is due to the fact that the nucleus of strengthening gel could simply reach to the critical volume of nucleation that causes increase in the strength. |
| first_indexed | 2024-03-06T07:55:23Z |
| format | Article |
| id | upm.eprints-22923 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:55:23Z |
| publishDate | 2010 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-229232020-04-15T16:17:34Z http://psasir.upm.edu.my/id/eprint/22923/ Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete Najigivi, Alireza Abdul Rashid, Suraya Abd. Aziz, Farah Nora Aznieta Mohd Salleh, Mohamad Amran In the current study, the size effects of SiO2 nano-particles on compressive, flexural and tensile strength of binary blended concrete were investigated. SiO2 nano-particles with two different sizes of 15 and 80 nm have been used as a partial cement replacement by 0.5, 1.0, 1.5 and 2.0 wt.%. It was concluded that concrete specimens containing SiO2 particles with average diameter of 15 nm were harder than those containing 80 nm of SiO2 particles at the initial days of curing. But this condition was altered at 90 days of curing. Also from the viewpoint of free energy, it can be concluded that the C–S–H gel formation around the particles with average diameter of 15 nm was more at the primary days of curing. This can be as a result of more nucleation sites that causes acceleration in early age strength. On the other hand, the growth probability of C–S–H gel around the 80 nm particles was more at 90 days of moist curing. This is due to the fact that the nucleus of strengthening gel could simply reach to the critical volume of nucleation that causes increase in the strength. Elsevier 2010 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/22923/1/Experimental%20investigation%20of%20the%20size%20effects%20of%20SiO2%20nano-particles%20on%20the%20mechanical%20properties%20of%20binary%20blended%20concrete.pdf Najigivi, Alireza and Abdul Rashid, Suraya and Abd. Aziz, Farah Nora Aznieta and Mohd Salleh, Mohamad Amran (2010) Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete. Composites Part B: Engineering, 41 (8). pp. 673-677. ISSN 1359-8368; ESSN: 1879-1069 https://www.sciencedirect.com/science/article/pii/S1359836810001137#! 10.1016/j.compositesb.2010.08.003 |
| spellingShingle | Najigivi, Alireza Abdul Rashid, Suraya Abd. Aziz, Farah Nora Aznieta Mohd Salleh, Mohamad Amran Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete |
| title | Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete |
| title_full | Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete |
| title_fullStr | Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete |
| title_full_unstemmed | Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete |
| title_short | Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete |
| title_sort | experimental investigation of the size effects of sio2 nano particles on the mechanical properties of binary blended concrete |
| url | http://psasir.upm.edu.my/id/eprint/22923/1/Experimental%20investigation%20of%20the%20size%20effects%20of%20SiO2%20nano-particles%20on%20the%20mechanical%20properties%20of%20binary%20blended%20concrete.pdf |
| work_keys_str_mv | AT najigivialireza experimentalinvestigationofthesizeeffectsofsio2nanoparticlesonthemechanicalpropertiesofbinaryblendedconcrete AT abdulrashidsuraya experimentalinvestigationofthesizeeffectsofsio2nanoparticlesonthemechanicalpropertiesofbinaryblendedconcrete AT abdazizfarahnoraaznieta experimentalinvestigationofthesizeeffectsofsio2nanoparticlesonthemechanicalpropertiesofbinaryblendedconcrete AT mohdsallehmohamadamran experimentalinvestigationofthesizeeffectsofsio2nanoparticlesonthemechanicalpropertiesofbinaryblendedconcrete |