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Zhang, Tian-Hang
- Mechanical Properties of Fly Ash Concrete Composite Reinforced with Nano-SiO2 and Steel Fibre
Abstract Views :222 |
PDF Views:91
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1 School of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou 450001, CN
1 School of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou 450001, CN
Source
Current Science, Vol 106, No 11 (2014), Pagination: 1529-1537Abstract
A parametric experimental study has been conducted to study the effect of nano-SiO2 particles and steel fibres on the mechanical properties of the concrete composite containing fly ash. Five different nano-SiO2 contents (1%, 3%, 5%, 7% and 9%) and five different steel fibre contents (0.5%, 1%, 1.5%, 2% and 2.5%) were used. The results indicate that addition of nano- SiO2 and steel fibres decreases the slump and slump flow of the fresh concrete composite containing fly ash, and both the slump and slump flow decrease gradually with the increase in nano-SiO2 and steel fibre content. The addition of nano-SiO2 improves the mechanical properties of concrete composites containing fly ash. There is an increase in the compressive strength and compressive modulus of elasticity with increase of nano-SiO2 content when it is below 5%, while they begin to decrease after the nano-SiO2 content is beyond 5%. Steel fibres help improve the mechanical properties of concrete composite containing fly ash and nano-particles. With the appropriate fibre content, the reinforcement of steel fibres on the compressive strength and compressive modulus of elasticity of the concrete composite becomes more obvious as the fibre content increases.Keywords
Fly Ash, Concrete Composite, Mechanical Property, Nano-SiO2, Steel Fibre.- Fracture Properties of Steel Fibre Reinforced High-Performance Concrete Containing Nano-SiO2 and Fly Ash
Abstract Views :281 |
PDF Views:90
Authors
Affiliations
1 School of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou 450001, CN
1 School of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou 450001, CN