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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Ruas (Review of Urbanism and Architectural Studies) eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Sistem : Jurnal Ilmu-Ilmu Teknik JFMR (Journal of Fisheries and Marine Research) Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia JAST : Jurnal Aplikasi Sains dan Teknologi Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Jurnal Qua Teknika Jurnal Konstruksi Asian Journal Science and Engineering Indonesian Journal of Interdisciplinary Research in Science and Technology (MARCOPOLO)

Diana Ningrum, Diana

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Author-ID : 630915

Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

Published : 39 Documents Claim Missing Document

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Comparison Analysis of Equivalent Static Earthquake and Spectrum Response Dynamics on Steel Structure Diana Ningrum; Albertus Nahak; Nawir Rasidi
Asian Journal Science and Engineering Vol 1 No 2 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

The purpose of this study is to compare two methods of seismic load analysis, namely the static equivalent method and the dynamic response spectrum method. The case study is the integrated service building of Tribhuwana Tunggadewi University, Malang City which has 5 levels and is located in the 4 (medium) earthquake zone with moderate soil conditions. The research method used is descriptive quantitative. Collecting data of project drawings, as well as observations and interviews. Analysis method Equivalent static and dynamic response spectrum using software Staad Pro. The results compared are the base shear force (V), the floor lateral force (F), and the displacement or displacement. The result in the form of maximum internal force is analyzed to determine the capacity or ability of the profile to withstand combined loads. The comparison of base shear and displacement does not differ much from the two seismic analysis methods used. This insignificant difference is in accordance with the SNI that for structures with a height below 40m can be analyzed using equivalent statics, while in the case study it only has a height of 30m. So that the equivalent static analysis becomes more accurate to use because the analysis process is simpler than dynamic analysis, but for structures with a height above 5 floors it is recommended to use dynamic analysis. The results of the analysis of the ability of the steel profile on the cross section of the column and beam indicate a safe condition in carrying combined loads. Keywords: Volume Fraction, Cannabis Sativa Fibers, Fiber Composites

Effect of Treatment Age on Mechanical Properties of Geopolymer Concrete Diana Ningrum; Handika Setya Wijaya; Elisabeth Van
Asian Journal Science and Engineering Vol 1 No 2 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

There are the same compound content, fly ash does not have the ability to bind, so it requires an alkaline activator for the polymerization reaction or binding reaction to occur. The alkali activators commonly used are sodium hydroxide and sodium silicate. The use of these materials makes concrete with fly ash known as geopolymer concrete. Geopolymer concrete is an alternative to conventional concrete, so it must have optimal strength like conventional concrete, therefore researchers are interested in testing the value of compressive strength, split tensile strength and mode of elasticity of geopolymer concrete using 10 molar alkali activator with a ratio of 3:2. for variations in the age of concrete 7, 14, 21, and 28 days; and the conversion value of geopolymer concrete using 10 molar alkali activator with a ratio of 3:2 for variations in the age of concrete 7, 14, 21, and 28 days. This research is an experimental study using variations in the age of concrete 7, 14, 21, and 28 days for geopolymer concrete using 10 molar alkali activator with a ratio of 3:2. The results of this study indicate that there is an effect of variations in the age of concrete on the value of compressive strength, split tensile strength, and modulus of elasticity of geopolymer concrete. Where the compressive strength, split tensile strength, and modulus of elasticity of geopolymer concrete at the age of 7 days are 31.40%; 35.44%; and 23.32% which at the age variation of 28 days increased by 100%. In addition, in this study, it is known that the conversion value at the age of 28 days for variations in the age of 7 days, 14 days, 21 days, and 28 days, respectively, is 0.31; 0.73; 0.97; 1.00 Keywords: Geopolymer Concrete, Compressive Strength, Modulus of Elasticity

Experimental Testing Comparison between Wiremesh Reinforcement and Plain Reinforcement on Concrete Slabs Rasidi, Nawir; Dora, Margaritha P.I; Ningrum, Diana
Asian Journal Science and Engineering Vol. 1 No. 1 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v1i1.405

The demand for building quality in the construction of structures is a major requirement. One part of the structure is the floor slab work. The main obstacle is when the floor slab is loaded there will be deflection and bending moment. Meanwhile, there are demands for shorter work times at lower costs. This study aims to analyze the concrete slab against the flexural strength test, compressive strength test and tensile strength test of plate reinforcement. In this study, plate reinforcement used plain steel with a diameter of 6 mm and 8 mm. Then the plain iron reinforcement plate was compared with the M6 ??and M8 wiremesh reinforcement plates. The results showed that the flexural strength test for plain iron reinforcing plates with a diameter of 6 mm was 45000 Kg.cm, while for a concrete slab with wiremesh M6 reinforcement it was 42500 Kg.cm then for reinforcement with a diameter of 8 mm it was 32500 Kg.cm while wiremesh M8 was 57500 Kg. .cm. This shows that the concrete slab with wiremesh reinforcement is better able to accept the load, as well as better moment capacity in bending, compressive and tensile tests compared to conventional slabs. Keywords: Concrete Slabs, Wiremesh Reinforcement, Plain Reinforcement

Review of Mechanical Characteristics and Flexural Strength of Concrete Beam Material Original Bundubela, East Sumba Ningrum, Diana; Rasidi, Nawir; Frank Rijkaard Mouwlaka, Enroe
Asian Journal Science and Engineering Vol. 4 No. 1 (2025): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v4i1.1892

The utilization of local aggregates is pivotal for promoting sustainable and cost-effective construction, yet their mechanical viability requires rigorous assessment. This study aims to evaluate the mechanical characteristics and flexural strength of concrete beams formulated with aggregates from Bundubela, East Sumba, to determine their suitability under Indonesian National Standards (SNI). The research employed a laboratory-based experimental method following SNI procedures. Two concrete mixtures were tested: a standard mix designed for a compressive strength (fc') of 21.7 MPa and a second mix enhanced with additives, targeting an fc' of 45 MPa. Results indicated that both mixtures failed to achieve their designed strengths. The standard mix only reached an average compressive strength of 18.15 MPa, while the additive-enhanced mix achieved 28.79 MPa. Furthermore, in flexural strength tests on concrete beams, both configurations exhibited excessive deflection, surpassing the maximum limits allowed by SNI. The beam without additives deflected 4.635 mm under a 1500 Kg maximum load, and the additive-enhanced beam deflected 6.145 mm under a 2100 Kg maximum load. These findings conclude that despite enhancement with additives, the Bundubela aggregate is unsuitable for structural concrete applications that must comply with current SNI requirements. This highlights a critical challenge in reconciling the use of local materials with stringent national construction codes, pointing to the need for material modification or specific-standard development

Co-Authors Lolo , Wilfridus Muri Adjib Karjanto Albertus Nahak Armin Naibaho Atsuhiko Isobe Benu, Ari Bianco , Ricardo Justino Damar Pandulu, Galih Danu Setia Wardana De Deus, Jeronimo Defri Yona Deri, Eusabius Ignasius Dora, Margaritha P.I Dyah Ajeng Pitaloka Elisabeth Van Evitantri, Mangesti Reza Fifi Damayanti Frank Rijkaard Mouwlaka, Enroe Fuad, M.Arif Zainul Galih Damar Pandulu Galih Damar Pandulu, Galih Damar Gungto, Benediktus Gusman S.W, Lalu Hamdisuryaman Siritoitet Isti Widodo, Isti Ledhyane Ika Harlyan LOSA, FLORIANUS IGNASIUS M Sa’dillah Mangesti Reza Evitantri Mochamad Arif Zainul Fuas Muhammad Ridwan Mukhlis Pribadi Nawir Rasidi Nawir Rasidi Nawir Rasidi PAPA, EDISTENIKSON ADI Pereira, Augusto Manuel Rasidi , Nawir Rosario, Domingos Seda, Victoria Setya Wijaya, Handika Setya, Handika Sugeng Utomo Takim Takim Umbu Lele, Ardinand Antonius Valiant, Raymond Virginia Soares Wijaya, Handika Setya Yerian Hamba Banju Yuniar Ponco Prananto Yurnalisdel Yurnalisdel, Yurnalisdel

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