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Optimizing of the cementitious composite matrix by addition of steel wool fibers (Chopped) based on physical and mechanical analysis

2021 , Akrm A Rmdan Amer , Mohd. Mustafa Al Bakri Abdullah , Liew Yun Ming , Jerzy J. Wysłocki , Wojciech Sochacki , Ikmal Hakem A Aziz , Muhammad Faheem Mohd. Tahir , Sebastian Garus , Joanna Gondro , Hetham A. R. Amer

The demand for durable, resistant, and high-strength structural material has led to the use of fibers as reinforcing elements. This paper presents an investigation into the inclusion of chopped steel wool fibers (CSWFs) in cement to form a high-flexural strength cementitious composite matrix (CCM). CSWFs were used as the primary reinforcement in CCM at increments of 0.5 wt%, from 0.5–6 wt%, with ratios of cement to sand of 1:1.5 and water to cement of 0.45. The inclusion of CSWFs resulted in an excellent optimization of the physicomechanical properties of the CCM, such as its density (2.302 g/cm3), compressive strength (61.452 MPa), and maximum flexural strength (10.64 MPa), all of which exceeded the performances of other reinforcement elements reported in the literature.

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Optimizing of the cementitious composite matrix by addition of steel wool fibers (chopped) based on physical and mechanical analysis

2021 , Akrm A Rmdan Amer , Mohd. Mustafa Al Bakri Abdullah , Liew Yun Ming , Ikmal Hakem A Aziz , Jerzy J. Wysłocki , Muhammad Faheem Mohd. Tahir , Wojciech Sochacki , Sebastian Garus , Joanna Gondro , Hetham A. R. Amer

The demand for durable, resistant, and high-strength structural material has led to the use of fibers as reinforcing elements. This paper presents an investigation into the inclusion of chopped steel wool fibers (CSWFs) in cement to form a high-flexural strength cementitious composite matrix (CCM). CSWFs were used as the primary reinforcement in CCM at increments of 0.5 wt%, from 0.5–6 wt%, with ratios of cement to sand of 1:1.5 and water to cement of 0.45. The inclusion of CSWFs resulted in an excellent optimization of the physicomechanical properties of the CCM, such as its density (2.302 g/cm3), compressive strength (61.452 MPa), and maximum flexural strength (10.64 MPa), all of which exceeded the performances of other reinforcement elements reported in the literature.

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Experimental investigation of chopped steel wool fiber at various ratio reinforced cementitious composite panels

2021 , Akrm A. Rmdan Amer , Mohd. Mustafa Al Bakri Abdullah , Liew Yun Ming , Ikmal Hakem A Aziz , Muhammad Faheem Mohd. Tahir , Shayfull Zamree Abd. Rahim , Hetham A.R. Amer

The flexural toughness of chopped steel wool fiber reinforced cementitious composite panels was investigated. Reinforced cementitious composite panels were produced by mixing of chopped steel wool fiber with a ratio range between 0.5% to 6.0% and 0.5% as a step increment of the total mixture weight, where the cement to sand ratio was 1:1.5 with water to cement ratio of 0.45. The generated reinforced cementitious panels were tested at 28 days in terms of load-carrying capacity, deflection capacities, post-yielding effects, and flexural toughness. The inclusion of chopped steel wool fiber until 4.5% resulted in gradually increasing load-carrying capacity and deflection capacities while, provides various ductility, which would simultaneously the varying of deflection capability in the post-yielding stage. Meanwhile, additional fiber beyond 4.5% resulted in decreased maximum load-carrying capacity and increase stiffness at the expense of ductility. Lastly, the inclusion of curves gradually.