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EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF STEEL FIBER REINFORCED CONCRETE MADE WITH FIBERS PREPARED FROM WASTE STEEL WIRE ROPE
Concrete is one of the world’s most widely used construction material. It is made from coarse aggregate, fine aggregate, Portland cement and water. Concrete has relatively high compressive strength, but significantly low tensile strength. As previous researches indicate addition of discrete fibers in the concrete matrix can reduce weaknesses of plain concrete. This study aims to investigate and examine the mechanical properties of Steel Fiber Reinforced Concrete (SFRC) using fibers prepared from waste steel wire ropes. First steel fibers are prepared by cutting waste steel wire rope in to a length of 30mm,45mm and 60mm pieces. Then experimental investigations have done to study the compressive strength, flexural strength and split tensile strength of concrete containing wire rope steel fibers with volume fraction of 0%, 0.5%, 1% and 1.5%. In this study steel fibers of 37.5, 56.25 and 75 aspect ratios were used. Experimental test results showed that all mechanical properties are observed to be on higher side for aspect ratio of 56.25 as compared to those for aspect ratio of 37.5 and 75. Results obtained from the tests also showed three major findings based on the specific objectives of the study. The first one was that compressive strength increased by 11.7% for 0.5% fiber volume and by 17.9% and 25.6% respectively for 1% and 1.5% fiber volume when compared with plain concrete. The second finding was that flexural strength increased by 23.4% for 0.5% fiber volume and by 46.8% and 64.4% respectively for 1% and 1.5% fiber volume when compared with plain concrete. The third finding was that splitting tensile strength increased by 22.7% for 0.5% fiber volume and by 48.4% and 66.8% respectively for 1% and 1.5% fiber volume when compared with plain concrete for optimum fiber aspect ratio of 56.25. Based on the results of this study I recommend to use these steel fibers prepared from waste steel wire rope as partial replacement to minimum reinforcement required in slab on ground for shrinkage or temperature cracking
EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF STEEL FIBER REINFORCED CONCRETE MADE WITH FIBERS PREPARED FROM WASTE STEEL WIRE ROPE
Concrete is one of the world’s most widely used construction material. It is made from coarse aggregate, fine aggregate, Portland cement and water. Concrete has relatively high compressive strength, but significantly low tensile strength. As previous researches indicate addition of discrete fibers in the concrete matrix can reduce weaknesses of plain concrete. This study aims to investigate and examine the mechanical properties of Steel Fiber Reinforced Concrete (SFRC) using fibers prepared from waste steel wire ropes. First steel fibers are prepared by cutting waste steel wire rope in to a length of 30mm,45mm and 60mm pieces. Then experimental investigations have done to study the compressive strength, flexural strength and split tensile strength of concrete containing wire rope steel fibers with volume fraction of 0%, 0.5%, 1% and 1.5%. In this study steel fibers of 37.5, 56.25 and 75 aspect ratios were used. Experimental test results showed that all mechanical properties are observed to be on higher side for aspect ratio of 56.25 as compared to those for aspect ratio of 37.5 and 75. Results obtained from the tests also showed three major findings based on the specific objectives of the study. The first one was that compressive strength increased by 11.7% for 0.5% fiber volume and by 17.9% and 25.6% respectively for 1% and 1.5% fiber volume when compared with plain concrete. The second finding was that flexural strength increased by 23.4% for 0.5% fiber volume and by 46.8% and 64.4% respectively for 1% and 1.5% fiber volume when compared with plain concrete. The third finding was that splitting tensile strength increased by 22.7% for 0.5% fiber volume and by 48.4% and 66.8% respectively for 1% and 1.5% fiber volume when compared with plain concrete for optimum fiber aspect ratio of 56.25. Based on the results of this study I recommend to use these steel fibers prepared from waste steel wire rope as partial replacement to minimum reinforcement required in slab on ground for shrinkage or temperature cracking
EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF STEEL FIBER REINFORCED CONCRETE MADE WITH FIBERS PREPARED FROM WASTE STEEL WIRE ROPE
MUBAREK MUDESIR (author)
2020-01-13
doi:10.20372/nadre/4662
Theses
Electronic Resource
English
DDC:
690
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