PERBANDINGAN PENGARUH PENAMBAHAN SERAT BENDRAT LURUS (STRAIGHT) DENGAN SERAT BENDRAT BERKAIT (HOOKED) TERHADAP PERILAKU BETON DENGAN BEBAN TEKAN BERULANG
Abstract
In this research, the concrete mixture is added by the material of straight and hooked wire bendrat fibers. This addition aimed to study and compare the effect of adding bendrat fiber straight and hooked to the compressive strength, tensile strength and flexural strength in normal quality concrete with 0.75% fiber concentration and aspect ratio 60 with repeated press load. The test specimen compressive and tensile strength in the form of cylinders with a diameter of 15 cm and height 30 cm and the flexural strength test specimen in the form of beam with a length of 60 cm, width 15 cm and height 15 cm. Testing is done after 28 days. Concrete with additional hooked bendrat fiber is more able to withstand fatigue due to repeated load that generates more experienced loading intervals until concrete destroyed, the compressive strength at the 13th interval, 14th tensile and 6th flexural. The compressive strength, tensile and flexural maximum split value occurred in the concrete with the addition of hooked bendrat fiber. However, the value did not increase significantly between the variations of straight bendrat fiber with hooked bendrat fiber. The maximum compressive strength in the hooked bendrat fiber of 34.5189 MPa, tensile strength of 3.2067 MPa and flexural strength of 8.9380 MPa.
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Key words: bendrat fiber, repeated press load, compressive strength, tensile strength, flexural strength.
References
ACI Committee 544, 1984, Guide for Spesifing, Mixing, Placing, and Finishing Steel Fiber Reinforced Concrete, ACI Journal, Vol.81, No.2.
ACI Committee 544, 1993, Guide for Spesifing, Proportioning, Mixing, Placing and Finishing Steel Fiber Reinforced Concrete, Report : ACI 544.3R – 93.
ASTM C-39, 2003, Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, Annual Book of ASTM Standards, Vol. 04.02, United States.
ASTM C-78, 1994, Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading), Annual Book of ASTM Standards, Vol. 04.02, United States.
Hannant, D.J., 1978, Fibre Cements and Fibre Concretes, John Wiley & Sons, New York.
Henager, C.N., and Doherty, T.J., 1976, Analysis of Reinforced Fibrous Concrete Beams, Journal of the Structural Division, ASCE, V. 102, No. ST!, pp, 177-188.
Purwanto, E., 1999, Perilaku Fiber Lokal Pada Perilaku dan Kuat Torsi Ultimit Balok Beton Bertulang, Tesis Program Pasca Sarjana UGM, Yogyakarta.
Setiawan, W., 2013, Pengaruh Beban Fatik Terhadap Kapasitas Lentur Balok Beton Bertulang, Universitas Hasanuddin, Makassar.
SNI T-15, 1991, Tata Cara Perhitungan Struktur Beton Untuk Bangunan Gedung, Standar SNI T-15-1991-03, Yayasan LPMB Departemen Pekerjaan Umum, Bandung.
SNI 2847, 2013, Persyaratan Beton Struktural Untuk Bangunan Gedung, Badan Standarisasi Nasional, Bandung.
Sugiyanto, Sebayang, S., 2005, Teknologi Bahan, Universitas Lampung, Bandar Lampung.
Suhendro, B., 1991, Pengaruh Fiber Kawat Lokal Pada Sifat-sifat Beton, Laporan Penelitian, Lembaga Penelitian UGM, Yogyakarta.
Swamy, R.N., and Al-Ta'an, S.A., 1981, Deformation and Ultimate Strength in Flexure of Reinforced Concrete Beams Made with Steel Fiber Concrete, ACI Journal, Proceeding V. 78, No. 5, pp, 395-405.
Tjokrodimuljo, K., 2007, Teknologi Beton, Universitas Gajah Mada, Yogyakarta.
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Publisher
Department of Civil Engineering
Engineering Faculty
University of Lampung
Website: http://journal.eng.unila.ac.id/index.php/jrsdd