Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber Powder
Using waste rubber tires for concrete production will reduce the demand for natural aggregate and help to reduce environmental pollution. The main challenge of using waste rubber tires in concrete is the deterioration of mechanical properties, due to poor bonding between rubber and cement matrix. Th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/22/4858 |
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| author | Muhammad Tahir Lakhiar Sih Ying Kong Yu Bai Susilawati Susilawati Izni Zahidi Suvash Chandra Paul Mavinakere Eshwaraiah Raghunandan |
| author_facet | Muhammad Tahir Lakhiar Sih Ying Kong Yu Bai Susilawati Susilawati Izni Zahidi Suvash Chandra Paul Mavinakere Eshwaraiah Raghunandan |
| author_sort | Muhammad Tahir Lakhiar |
| collection | DOAJ |
| description | Using waste rubber tires for concrete production will reduce the demand for natural aggregate and help to reduce environmental pollution. The main challenge of using waste rubber tires in concrete is the deterioration of mechanical properties, due to poor bonding between rubber and cement matrix. This research aims to evaluate the mechanical and thermal properties of rubberised concrete produced by using different proportions of rubber powder and silica fume. Ordinary Portland cement was partially replaced with silica fume by amounts of 5%, 10%, 15% and 20%, while sand was replaced by 10%, 20% and 30% with waste rubber powder. Tests were carried out in order to determine workability, density, compressive strength, splitting tensile strength, elastic modulus, thermal properties, water absorption and shrinkage of rubberised concrete. The compressive strength and splitting tensile strength of concrete produced using waste rubber powder were reduced by 10–52% and 9–57%, respectively. However, the reduction in modulus of elasticity was 2–36%, less severe than compressive and splitting tensile strengths. An optimum silica fume content of 15% was observed based on the results of mechanical properties. The average shrinkage of concrete containing 15% silica fume increased from −0.051% to −0.085% at 28 days, as the content of waste rubber powder increased from 10% to 30%. While the thermal conductivity of rubberised concrete was reduced by 9–35% compared to the control sample. Linear equations were found to correlate the density, splitting tensile strength, modulus of elasticity and thermal conductivity of concrete with silica fume and waste rubber powder. |
| first_indexed | 2024-03-09T18:03:21Z |
| format | Article |
| id | doaj.art-c78175b6136c4bea9f63ed7075767c4c |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T18:03:21Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-c78175b6136c4bea9f63ed7075767c4c2023-11-24T09:42:07ZengMDPI AGPolymers2073-43602022-11-011422485810.3390/polym14224858Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber PowderMuhammad Tahir Lakhiar0Sih Ying Kong1Yu Bai2Susilawati Susilawati3Izni Zahidi4Suvash Chandra Paul5Mavinakere Eshwaraiah Raghunandan6Discipline of Civil Engineering, School of Engineering, Monash University Malaysia, Bandar Sunway 47500, Selangor, MalaysiaDiscipline of Civil Engineering, School of Engineering, Monash University Malaysia, Bandar Sunway 47500, Selangor, MalaysiaDepartment of Civil Engineering, Monash University, Clayton, VIC 3800, AustraliaDiscipline of Civil Engineering, School of Engineering, Monash University Malaysia, Bandar Sunway 47500, Selangor, MalaysiaDiscipline of Civil Engineering, School of Engineering, Monash University Malaysia, Bandar Sunway 47500, Selangor, MalaysiaDepartment of Civil Engineering, International University of Business Agriculture and Technology, Dhaka 1230, BangladeshDiscipline of Civil Engineering, School of Engineering, Monash University Malaysia, Bandar Sunway 47500, Selangor, MalaysiaUsing waste rubber tires for concrete production will reduce the demand for natural aggregate and help to reduce environmental pollution. The main challenge of using waste rubber tires in concrete is the deterioration of mechanical properties, due to poor bonding between rubber and cement matrix. This research aims to evaluate the mechanical and thermal properties of rubberised concrete produced by using different proportions of rubber powder and silica fume. Ordinary Portland cement was partially replaced with silica fume by amounts of 5%, 10%, 15% and 20%, while sand was replaced by 10%, 20% and 30% with waste rubber powder. Tests were carried out in order to determine workability, density, compressive strength, splitting tensile strength, elastic modulus, thermal properties, water absorption and shrinkage of rubberised concrete. The compressive strength and splitting tensile strength of concrete produced using waste rubber powder were reduced by 10–52% and 9–57%, respectively. However, the reduction in modulus of elasticity was 2–36%, less severe than compressive and splitting tensile strengths. An optimum silica fume content of 15% was observed based on the results of mechanical properties. The average shrinkage of concrete containing 15% silica fume increased from −0.051% to −0.085% at 28 days, as the content of waste rubber powder increased from 10% to 30%. While the thermal conductivity of rubberised concrete was reduced by 9–35% compared to the control sample. Linear equations were found to correlate the density, splitting tensile strength, modulus of elasticity and thermal conductivity of concrete with silica fume and waste rubber powder.https://www.mdpi.com/2073-4360/14/22/4858silica fumewaste rubber powdermechanical propertiesthermal properties |
| spellingShingle | Muhammad Tahir Lakhiar Sih Ying Kong Yu Bai Susilawati Susilawati Izni Zahidi Suvash Chandra Paul Mavinakere Eshwaraiah Raghunandan Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber Powder Polymers silica fume waste rubber powder mechanical properties thermal properties |
| title | Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber Powder |
| title_full | Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber Powder |
| title_fullStr | Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber Powder |
| title_full_unstemmed | Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber Powder |
| title_short | Thermal and Mechanical Properties of Concrete Incorporating Silica Fume and Waste Rubber Powder |
| title_sort | thermal and mechanical properties of concrete incorporating silica fume and waste rubber powder |
| topic | silica fume waste rubber powder mechanical properties thermal properties |
| url | https://www.mdpi.com/2073-4360/14/22/4858 |
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