An Experimental Study on Strength Properties of Hybrid fibre Reinforced Concrete |
Author(s): |
| M Hari Prasad , Siddartha Educational Academy Group of Institutions Integrated Campus; Dr. K. Rajasekhar, Siddartha Educational Academy Group of Institutions Integrated Campus; C Sreenivasulu, Annamacharya Institute of Technology and sciences |
Keywords: |
| Hybrid fiber reinforced concrete, crimped steel fiber, chopped mat glass fiber, compressive strength, splitting tensile strength, impact strength, sorptivity |
Abstract |
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The present investigation is mainly focused on finding the short term mechanical properties of M20 grade hybrid fiber reinforced concrete (HFRC) mixes with different fibers blending. Crimped steel and chopped mat glass fibers are blended in different proportions (0:0, 0.25:0.25, 0.5:0.5, 0.75:0.75 and 1:1) by percentage of volume of concrete and weight of cement. Coarse aggregates of size 20 mm and 10 mm are blended in 60:40 proportions by percentage of weight of total coarse aggregate. Ordinary Portland cement of grade 53(OPC) was used as a binding material. Compressive strength and splitting tensile strength (STS) were studied after 7, 28 and 90 days of curing period. Impact strength and sorptivity were also studied after 28 and 45 days of curing. From the results, it is revealed that the mechanical properties were increased till fibers blending of 0.75:0.75 and decreasing trend has been observed at 1:1 fibers blending. Impact strength and sorptivity results have shown improvement till the fibers blending of 1:1. It is concluded that optimum fiber blending was 0.75:0.75 by percentage of volume of concrete and weight of cement. |
Other Details |
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Paper ID: IJSRDV4I90388 Published in: Volume : 4, Issue : 9 Publication Date: 01/12/2016 Page(s): 577-581 |
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