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The Analysis of the Effect of Adding Glass Powder Waste as a Cement Substitution and the Use of Pumice Aggregate on the Compressive Strength of Light Concrete Buana, Galing Wira; Hudaya Taher, Nuni Khoirinnisa; Roesdiana, Tira
Scientechno: Journal of Science and Technology Vol. 4 No. 2 (2025)
Publisher : Yayasan Pendidikan Islam Daarut Thufulah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/scientechno.v4i2.2336

Along with the increasing need for building materials and high cement prices, innovation in the use of alternative materials that are environmentally friendly and economical is needed. Glass powder waste, which is difficult to decompose and has the potential to pollute the environment, has the potential as a cement substitute because of its supportive physical and chemical properties. Additionally, pumice, as a lightweight aggregate, can reduce the dead load of the structure and enhance the efficiency of construction execution. This study aims to analyze the effect of the addition of glass powder waste as a cement substitution and the use of pumice aggregate on the compressive strength of light concrete. Glass waste, which comes from industrial and household waste, is used as a cement substitute with variations of 0%, 5%, 10%, and 15%. In contrast, pumice is used as a partial substitute for coarse aggregate. The method used is experimental, with laboratory testing including compressive strength tests at 14 and 28 days of age. The results showed that the addition of glass powder at a percentage of 5% gave the highest compressive strength values of 10.98 MPa (14 days) and 12.40 MPa (28 days), compared to concrete without glass powder, which only reached 8.14 MPa (14 days) and 11.11 MPa (28 days). This suggests that the combination of glass powder and pumice stone can significantly increase the compressive strength of light concrete, although the efficiency of the mixture decreases at higher percentages. This research provides an alternative to the use of local waste and aggregates in the development of environmentally friendly and economically efficient concrete.

Structural Analysis of The BRI Branch Office in Kesambi Sub-District Cirebon City Rahmatulloh, Muhammad; Al-Aufa, Muhammad Fikri; Ray, Devana; Roesdiana, Tira
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 3 No. 11 (2024): JETBIS : Journal Of Economich, Technology and Business
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v3i11.160

Safe and standardized infrastructure development is an important factor in supporting economic growth, especially in disaster-prone areas such as Cirebon. This research aims to analyze the structural strength of the BRI branch office building in Kesambi, Cirebon, in accordance with SNI 2847:2019, SNI 1726:2019, and SNI 1727:2020 regulations. This research uses a quantitative approach with ETABS V18.1.1 software to conduct structural analysis. The data used includes primary data from field measurements and secondary data from literature and applicable design standards. The analysis process includes structural modeling, load calculation, and strength evaluation of structural elements such as columns, beams, and slabs. The analysis results show that most of the building's structural elements meet the established strength standards. However, columns K1C, K2, and KT3 did not meet the Strong Column Weak Beam (SCWB) criteria, indicating the need for improvement in the design and strengthening of these elements. These findings indicate the importance of applying comprehensive structural analysis in the planning of banking buildings. The research also provides recommendations for design improvements to enhance the safety and structural durability of the building, and emphasizes the need for compliance with applicable regulations in infrastructure development. This study concludes that the BRI branch office building in Kesambi, Cirebon, is generally safe for use, but there are some elements that require more attention to ensure structural safety.

Structural Analysis of The BRI Branch Office in Kesambi Sub-District Cirebon City Rahmatulloh, Muhammad; Al-Aufa, Muhammad Fikri; Ray, Devana; Roesdiana, Tira
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 3 No. 11 (2024): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/jetbis.v3i11.160

Safe and standardized infrastructure development is an important factor in supporting economic growth, especially in disaster-prone areas such as Cirebon. This research aims to analyze the structural strength of the BRI branch office building in Kesambi, Cirebon, in accordance with SNI 2847:2019, SNI 1726:2019, and SNI 1727:2020 regulations. This research uses a quantitative approach with ETABS V18.1.1 software to conduct structural analysis. The data used includes primary data from field measurements and secondary data from literature and applicable design standards. The analysis process includes structural modeling, load calculation, and strength evaluation of structural elements such as columns, beams, and slabs. The analysis results show that most of the building's structural elements meet the established strength standards. However, columns K1C, K2, and KT3 did not meet the Strong Column Weak Beam (SCWB) criteria, indicating the need for improvement in the design and strengthening of these elements. These findings indicate the importance of applying comprehensive structural analysis in the planning of banking buildings. The research also provides recommendations for design improvements to enhance the safety and structural durability of the building, and emphasizes the need for compliance with applicable regulations in infrastructure development. This study concludes that the BRI branch office building in Kesambi, Cirebon, is generally safe for use, but there are some elements that require more attention to ensure structural safety.

Perencanaan Dan Analisis Struktur Baja Menara Pandang Pada Kawasan Wisata Sejuta Pohon Kelapa Di Kabupaten Kuningan Roesdiana, Tira; Fernando, Tedy
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 13 No 2 (2025): Jurnal Konstruksi dan Infrastruktur Vol 13 No.2 : Oktober 2025
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v13i2.11030

This research focuses on the structural design and performance analysis of a steel observation tower intended as a supporting facility at the Sejuta Pohon Kelapa tourism area in Kuningan, West Java. The objective is to develop a structurally safe, durable, and efficient observation tower that functions as an iconic landmark enhancing the site’s tourism potential. The study adopts the standards of SNI 1729:2020 (Structural Steel Design), SNI 1726:2019 (Seismic Resistance), and SNI 1727:2020 (Minimum Design Loads) to ensure compliance with national building codes.The research methodology integrates site investigation, data collection, and finite element-based structural analysis. The main structural components analyzed include the composite floor system (bondex slab), secondary and primary beams, columns, and bore pile foundations. The structural design employs WF 200×200×8×12 and WF 300×300×10×15 profiles for the beams and WF 400×400×13×21 for the columns, using BJ41 steel grade. The bore pile foundation system, consisting of four 30 cm diameter piles with a 1.5 × 1.5 × 0.5 m pile cap, is verified to safely resist axial, shear, and moment loads.The analysis results confirm that all structural members satisfy the strength, stiffness, and serviceability requirements according to the applied SNI standards. The overall system demonstrates adequate lateral stability under seismic loading and sufficient bearing capacity in the foundation. Consequently, the proposed steel tower design is structurally feasible, seismically resistant, and suitable for implementation as a sustainable tourism infrastructure that integrates engineering safety with environmental aesthetics.

Analysis of the Effect of Brick Waste on Concrete Compressive Strength Pramujya S, Bayu; Mirdiana, Fajar; Muhammad I, Regan; Roesdiana, Tira
Journal of World Science Vol. 4 No. 1 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i1.1272

The construction industry generates significant red brick waste, often left unused and posing environmental challenges. Utilizing this waste as a substitute for fine aggregate in concrete can reduce reliance on natural materials and enhance concrete performance. Both red bricks and sand share a common silica (SiO?) content, making bricks a viable alternative material. This study evaluates the compressive strength of concrete incorporating red brick waste and identifies the optimal substitution percentage for maximum strength. Concrete samples (15x15x15 cm³) of K250 quality were tested with red brick waste replacing 0%, 6%, 8%, 10%, 12%, and 14% fine aggregate by weight. Compressive strength tests were conducted after curing periods of 7, 14, 21, and 28 days. Results indicate that adding brick waste significantly influences concrete strength. Concrete with 12% brick waste substitution achieved the highest compressive strength of 274.09 kg/cm², surpassing the strength of 6% substitution at 260.61 kg/cm². The findings demonstrate that red brick waste is a sustainable and effective alternative aggregate, contributing to environmental conservation and improved concrete performance. However, substitution proportions must be optimized to maintain desired structural properties.

Interpretation of SAP2000 Analysis Results Using the Design Response Spectrum Method in Earthquake Resistance in the Structural Performance of High-Story Buildings According to SNI 1726:2019 Andika, Reja; Roesdiana, Tira
Journal of World Science Vol. 4 No. 2 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i2.1294

This research investigates earthquake dynamics and their impact on structural responses, focusing on building flexibility and rigidity’s influence on seismic performance. Using SAP2000 version 24 software as per 1726:2019 guidelines, the KC BTN Bank office building in Cirebon was evaluated. Seismic load data from RSA PuSGeN Cipta Karya (Desain Spektra Indonesia 2021) assessed the structure's safety against Indonesian seismic standards. The analysis confirms compliance, achieving safety limits and a 90% modal participation mass ratio per Article 7.9.1 of SNI 1726:2019. The building's fundamental periods (T) are 0.562 seconds (Tc) and 0.546 seconds (Ta Min) for each direction. Base reactions reached a 100% scale factor, meeting Article 7.9.1.4.1 requirements. Story displacements in the X and Y directions due to lateral sway are safe, with drifts below the allowable values in Table 20 of SNI 1726:2019. The findings show that the structural design meets earthquake-resistance requirements, ensuring safety and compliance. This research underscores the need for thorough design reviews, confirming that main structural elements align with criteria for multi-story buildings, and provides insights for optimizing designs to enhance resilience and safety in seismically active regions.

Analysis of the effect of the combination of fly ash, plastic waste, and natural stone waste as a substitute additive for making environmentally friendly concrete on the compressive strength of concrete Maulana, Muhammad Agung; Septian, Fadhlan Ghifari; Ramadon, Deni; Roesdiana, Tira
Indonesian Journal of Multidisciplinary Science Vol. 4 No. 6 (2025): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v4i6.1121

The ongoing development of infrastructure technology, particularly in constructing buildings, plays a vital role in national progress. Concrete, a widely used construction material, is crucial for civil works and overall development.In this study using an innovation in concrete mixes by utilizing waste that can damage the environment, such as fly ash as a cement additive, plastic waste as a coarse aggregate additive, natural stone waste as a fine aggregate additive. The primary objectives of this study are to assess the impact of waste addition on concrete production, establish optimal and minimal waste variations affecting concrete compressive strength, and evaluate the performance of waste mixtures in comparison to normal concrete. Various waste percentages were integrated into the concrete mix: fly ash (5%, 10%, 15%, 20%, 25%, 30%), plastic waste (2%), and natural stone waste (40%). Test specimens were cube-shaped, measuring 15x15x15 cm. Concrete curing took place over 7, 14, 21, and 28 days, with subsequent compressive strength testing. . From the analysis results show a significant correlation between the proportion of added ingredients in the concrete mixture tends to increase the compressive strength of concrete at a certain limit, obtained the optimum value at 20% variation with a compressive strength of 328.0036 kg/cm2 and the minimum value at 30% variation with a compressive strength of 276.3318 kg/cm2 at the age of 28 days, the use of waste in concrete mixes is very good and can be an alternative in making concrete with environmentally friendly properties.

ANALYSIS AND DESIGN REINFORCED CONCRETE CONSTRUCTION STRUCTURE OF 4 FLOOR HOTEL IN KUNINGAN Roesdiana, Tira; Perdana, Renaldi Indra
Journal of Green Science and Technology Vol 7 No 1 (2023): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY VOL.7 NO.1 MARET 2023
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v7i1.15

Planning for a 4-storey hotel in Kuningan is projected to support supporting facilities for the tourism sector in Kuningan Regency, supporting facilities like this are really needed by Kuningan Regency which has great potential in the tourism sector and is proven by the continuing increase in the number of tourists every year, with the development of Kuningan Regency and the increasingly widespread the construction of multi-storey buildings is needed planning in order to make efficient use of land. To support the availability of tourism support facilities, this research will examine the planning of hotel building structures based on SNI 2847-2019, SNI 1727-2020 and SNI 1726-2019 and calculate the budget plan for the structural work. Referring to these rules, the dimensions of the structural elements and the need for structural reinforcement can be produced that meet the rules and can also support the work force and loads received on a building including earthquake loads, wind loads and rain loads. The cost of building a 4-storey hotel building in this study is Rp. 26,712,400,000.00 (Twenty Six Billion Seven Hundred Twelve Million Four Hundred Thousand Rupiah), and the cost of building a one square meter building is Rp. 4,345,716.00 (Four million three hundred forty-five million seven hundred and sixteen thousand rupiah).

Planning Modification of Steel Arch Bridge on Cimanuk Bridge Tomo District Sumedang Regency Cirebon-Bandung Highway Roesdiana, Tira; Kholiah, Mif’fetin
Journal of Green Science and Technology Vol 9 No 1 (2025): Journal of Green Science and Technology Vol. 9 No. 1 March 2025
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i1.9923

One of the businesses that supports transportation is the construction of Bridge infrastructure. In improving and supporting transportation facilities, the condition of the bridge must be in good condition. The Cimanuk Bridge which originally used the Steel Box Girder & Steel I Girder structure with a pillar in the middle of the span, the structure will be modified into An Arch Steel Bridge without pillars. Cimanuk Bridge is ± 100 m long, including a long-span bridge so that it can use An Arch Steel Bridge Structure. [1] SNI 1726:2019 about Seismic analysis for design It uses the equivalent static. Analysis method based on SNI 1729: 2020 about Specification for structural steel building. And SNI 1725:2016 about Loading for bridges. The methode of structural analysis performed using SAP2000 version 22 software. The structural calculation process includes the determination of the structural system, load analysis, structural modeling, internal force analysis, reinforcement calculation, and examination of structural element requirements. The result show main structure profile using Double WF 700x550x40x45, Longitudinal Girder WF 500x200x10x16, Transverse Girder WF 1200x500x20x28, Tie Beam BOX 1000x1000x50, Wind Bracing using Square/Box. Keyword: Arch Steel Bridge; Cimanuk Bridge; Steel Structure; SNI 1729:2019; SNI 1725:2016

PEMBUATAN PAVING BLOCK DENGAN SERBUK BATU KARANG SEBAGAI SUBSTITUSI SEMEN MENGGUNAKAN METODE DRYMIX Rochmanto, Decky; Pratama, Andrie Mandala Yudha; Saputro, Yayan Adi; Qomaruddin, Mochammad; Roesdiana, Tira
(JITEK)Jurnal Ilmiah Teknosains Vol 9, No 2/Nov (2023): JiTek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v9i2/Nov.16918

Utilizing dead rock as a cement additive in the manufacture of paving blocks, and the rock contains CaCO3 which includes limestone as in the content of cement which has lime content (CaO), the aim is to determine the effect of rock on the compressive strength value of paving blocks. Utilization of stone in the manufacture of paving blocks using a mixture of design 0%, 5%, 10%, and 15% of the weight of cement to be used. Manufacture of paving blocks using a ratio of 1: 3 sand cement, cement water factor 0.4 with molds 20 x 10 x 6 cm, compaction weight of 1 paving 3.52 kg and testing compressive strength at 7, 14 and 28 days, using the method (SNI 03- 0691-1996) paving block. From the analysis of compressive strength testing, it was found that the compressive strength of paving blocks increased towards normal paving blocks to produce the highest compressive strength with added rock in the 15% variation at the age of 28 days, which amounted to 45.1 MPa and included the quality of class A paving blocks with SNI 03-0691 (1996) standards. The compressive strength of the 5% variation at 28 days of age is 38.7 MPa and the compressive strength of the 10% variation at 28 days of age is 43.5 MPa. It can be seen that coral stone as a cement additive is able to improve the quality of compressive strength of paving blocks.

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