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Benny Kusuma

Universitas Kristen Indonesia Paulus

Author-ID : 5375072

Civil Engineering, Building, Construction & Architecture Transportation

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Studi Eksperimental Beton Mutu Tinggi Dengan Agregat Batok Kelapa Dan Terak Baja Anisa Tikupadang; Herman Parung; Benny Kusuma
Paulus Civil Engineering Journal Vol 3 No 3 (2021): PCEJ, Vol.3, No.3, 2021
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Steel slag is a waste from the steel smelting industry. Along with the increasing demand for steel, it can also cause steel waste to increase. Coconut shell is a solid waste from the rest of coconut processing. This study aims to obtain the compressive strength, split tensile strength, flexural strength, and modulus of elasticity with coarse aggregate substituted for steel slag and coconut shell, with a concrete quality of f'c 45 MPa. The results of this study that the compressive strength of concrete obtained, 100% crushed stone aggregate increased 5.213% and coconut shell substitution and steel slag increased 1.650%. The value of the split tensile strength of concrete, 100% crushed stone is 9.312% and the substitution of coconut shells and steel slag is 9.073 of the compressive strength. The value of flexural strength, 100% crushed stone is 0.827√(f'c) and the substitution of coconut shell and steel slag is 0.752 f'c from the compressive strength. The modulus of elasticity of concrete, 100% crushed stone is 24845,351 MPa and substitution of coconut shells and steel slag is 20674,005 MPa.

Perencanaan Struktur Cantilever Bentang Panjang Menggunakan Rangka Pratt Truss Putu Axel Benyamin; Jonie Tanijaya; Benny Kusuma
Paulus Civil Engineering Journal Vol 4 No 1 (2022): Volume 4 No.1, Maret 2022
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

In designing a truss cantilever structure with a predetermined long span, it will certainly look for a model of long-span structure with a profile that is able to withstand the given load. This can be done by planning a model of the pratt truss long-span structure. The main purpose of this final task is to produce a design of a long-span cantilever structure that is part of a unique building using a pratt truss model. The long-span pratt truss cantilever structure is analyzed using the MDSolids v.4.1.0 program to compute the inner forces working on each component of the designed frame structure, while the STAAD Pro Connect v.22 program analyzes the deformation of the design cantilever structure profile. The planning of this long-span cantilever structure is designed with reference to SNI 1727:2020 on minimum design load and related criteria for buildings and other structures, and SNI 1729:2020 on specifications for structural steel buildings. The result of the planning obtained is the dimensions of the beam bar profile needed. Pratt truss long-span structure is able for used as a cantilever long-span structure. This is seen from the results of calculations using computer programs where the pratt truss model has a deformation/deflection structure that occurs not exceeding the specified limit, and the results of the profile design used safely in receiving loads, although the results of calculation analysis there are the most critical rod elements in withstanding the load of the axial force of the press, namely the t1 and b2 rods. While the most critical rods in withstanding the load of axial force pull are the rods d1 and a1.English translation.

Utilization of Aralle River Aggregate, Buntu District, Malangka as a Concrete Mixture Material Faisal Ical Alnaldi; Herman Parung; Benny Kusuma
Paulus Civil Engineering Journal Vol 4 No 1 (2022): Volume 4 No.1, Maret 2022
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Development in Buntu Malangka District is increasingly rapid, especially in the field of development, so the use of concrete becomes the main choice as a building construction. Construction in the field of concrete construction used in the area uses more aggregates derived from rivers. The Aralle River, which is one of the major and closest rivers in the area, is the main location for people to take aggregates, and no previous research has been done on the level of aggregate resistance when used as a concrete mix. The purpose of this study was to find out the aggregate characteristics of the Aralle River and its strength in concrete work. Powerful press plan 20 MPa using the American Concrete Institute method. Cylindrical test object 15 cm diameter 30 cm high for strong testing press 12 pieces and strong pull 3 pieces and beams 60 × 15 cm, strong test bending 3 pieces. Based on the results of the study obtained on the average concrete press strength test at the age of 7, 14, 21, 28 days each amounted to 9,903 MPa, 15,468 MPa, 18,203 MPa, 21,126 MPa. At the age of 28 days obtained strong tensile 2,028 MPa, strong bending 2,756 MPa and Modulus elasticity 21252,778 MPa. Based on the results of the study it can be concluded that the characteristic value and strong testing press at the age of 28 days obtained the value of meeting and achieving the planned quality so that the aggregate is well used in concrete construction.

Penggunaan Agregat Kasar Sungai Dampala Kabupaten Morowali Sebagai Bahan Campuran Beton Berongga Putra Imanuel; Benny Kusuma; Luciana Buarlele
Paulus Civil Engineering Journal Vol 5 No 2 (2023): Paulus Civil Engineering Journal, Volume 5, No.2
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v5i2.647

The use of concrete in Indonesia is increasingly widespread due to the main reasons that underlie concrete as the main choice in construction work compared to wood. Hollow concrete is concrete without fine aggregate and only consists of coarse aggregate, cement and water. The specimen in the form of a cylinder measuring 15 x 30 cm is then tested with a predetermined concrete age of 28 days. From the test results obtained a compressive strength of 14.343 MPa. The results of the permeability test for hollow concrete at the age of 28 days were 2.040 cm/sec. The results of the pore volume test on hollow concrete with an age of 28 days were 25.157%. From the results of the test above, the characteristics of hollow concrete (compressive strength, permeability, and pore volume) obtained using coarse aggregate from the Dampala river, Morowali Regency in the compressive strength test obtained a compressive strength value of 14, 434 Mpa so it does not meet the compressive strength plan i.e. 20 MPa. Permeability testing and pore volume obtained from this test are satisfactory.

Pengaruh Pecahan Batu Alam Andesit Sebagai Subtitusi Agregat Kasar Pada Beton Berongga Bobby Adianto Rima; Benny Kusuma; Luciana Buarlele
Paulus Civil Engineering Journal Vol 5 No 3 (2023): Paulus Civil Engineering Journal Volume 5, No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v5i3.720

Andesite natural stone is a porphyritic rock formed by volcanic eruptions and is gray-black in color with fine grains. The purpose of this study was to find out how crushed natural andesite affects coarse aggregate substitution The test material used in this experiment was a cylinder with a diameter of 15 cm and a height of 30 cm, and a cylinder of 10 cm x 20 cm. During 28days, concrete with a design compressive strength of 20MPa was tested for permeability, pore volume, and compressive strength in this study. The results showed that the compressive strength was affected by differences in the proportions of andesite found in nature. The compressive strength value decreases with the variation of the proportion while the pore volume and permeability increase.

Co-Authors Anisa Tikupadang Bobby Adianto Rima Faisal Ical Alnaldi Jonie Tanijaya Luciana Buarlele Parung, Herman Putra Imanuel Putu Axel Benyamin

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