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Pengaruh Subtitusi Serbuk Karet Ban Bekas Sebagai Pengganti Agregat Halus terhadap Kuat Tekan Beton Nugroho, Guntur; Pujianto, Asat; Kurniawati, Euis Kania
Bulletin of Civil Engineering Vol 3, No 2 (2023): Agustus
Publisher : Civil Engineering Department, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/bce.v3i2.19502

Abstract

Limbah ban karet adalah salah satu dampak yang dihasilkan dari perkembangan infrastruktur di bidang transportasi. Penumpukan limbah ban terjadi seiring dengan peningkatan jumlah kepemilikan kendaraan dalam suatu masyarakat. Upaya daur limbah diperlukan untuk mengurang pencemaran lingkungan. Salah satu pemanfaatan limbah ban bekas adalah untuk bahan pengganti sebagian agregat halus pada campuran beton, sehingga dihasilkan produk beton yang ramah lingkungan. Tujuan dari penelitian ini adalah untuk menganalisis pengaruh penambahan serbuk karet terhadap kuat tekan beton. Metode yang diterapkan adalah eksperimen pembuatan beton dengan substitusi agregat halus menggunakan persentase serbuk karet 0%, 5%, dan 15% terhadap subtitusi agregat halus. Benda uji yang digunakan berjumlah 9 buah silinder beton berdiameter 150 mm dan tinggi 300 mm, dengan masing-masing variasi desain campuran berjumlah 3 buah silinder beton. Beton tersebut diuji terhadap kuat tekan dengan hasil uji kuat tekan beton dengan persentase serbuk karet 0%, 5%, dan 15% berturut-turut sebesar 27,12 MPa, 19,37 MPa, dan 16,29 MPa. Rubber tire waste is one of the impacts resulting from the development of infrastructure in the transportation sector. The accumulation of tire waste occurs along with an increase in the number of vehicle owners in a society. Waste recycling efforts are needed to reduce environmental pollution. One of the uses of used tire waste is to replace some of the fine aggregate in the concrete mixture, so that an environmentally friendly concrete product is produced. The purpose of this study was to analyze the effect of the addition of rubber powder on the compressive strength of concrete. The method applied is an experiment in making concrete with fine aggregate substitution using rubber powder percentages of 0%, 5%, and 15% for fine aggregate substitution. The specimens used were 9 concrete cylinders with a diameter of 150 mm and a height of 300 mm, with 3 concrete cylinders for each mix design variation. The concrete was tested for compressive strength with the results of the concrete compressive strength test with the percentage of rubber powder of 0%, 5% and 15% respectively of 27.12 MPa, 19.37 MPa and 16.29 MPa.
Variabel-Variabel yang Memengaruhi Status Partisipasi Pendidikan Prasekolah di Pulau Sumatera Tahun 2021 Nugroho, Guntur; Setiadi, Yaya
Seminar Nasional Official Statistics Vol 2023 No 1 (2023): Seminar Nasional Official Statistics 2023
Publisher : Politeknik Statistika STIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34123/semnasoffstat.v2023i1.1612

Abstract

In 2021, all provinces in Sumatera had a lower early childhood education gross enrollment rate achievement compared to the national level, and the achievements varied among the districts/cities within them. This indicates that preschool participation in Sumatera is still low and uneven. However, the supporting infrastructure for preschool education in Sumatera is relatively adequate compared to other islands. The aim of this study is to determine the variables at individual and district/city level that significantly influence preschool education participation status in Sumatera, along with the magnitude of their influence. The analytical method used is multilevel binary probit regression. The results found that variables such as child's gender, child's age, classification of residence, household per capita expenditure quintile, household size, mother's internet usage status, mother's highest education level, and teacher-to-child ratio for children aged 3-6 years have a significant influence on the preschool education participation status in Sumatera Island in 2021.
Concentric Bracing Frame in Earthquake-Resistant High-Rise Buildings Alhussein, Mohammedalameen Ahmed Aldaw; Nugroho, Guntur; Wahiddin, Wahiddin; Nursetiawan, Nursetiawan
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.21864

Abstract

Indonesia has regular earthquakes; thus, constructions must be designed to SNI 1726:2019. Building height based on SNI 1726:2012 table 9 and article 7.2.5.4 maximums. The survey says response-based damage models can assess ground vibrations. The earthquake damage was assessed and compared to the moment-resisting frame after the structure was rehabilitated with concentric bracing. 1) This study analyzes lateral forces on each level for moment-resisting and concentric-braced frames. CBF, 2) assessing displacements at each level for moment-resisting and concentric braced frames, and 3) counting narratives. The ETABS Structural Analysis Professional 2020 program measures structural element internal forces. Internal forces include shear, axial, bending, and twisting. Next, calculate level displacement, or vertical distance between levels. The pushover analysis on medium and high-rise structures shows 0.91% CBF lateral shear force. CBF stiffens elastically. CBF supports enhance CBF displacement by 70%, minimize floor structure displacement, and stiffen the steel frame laterally more than MRF. Maximum CBF deviation between floors is 85%; CBF and MRF weight differential is 1.530%. Thus, the CBF exceeds the frame weight. The designed structure is important, but seismic performance in static and dynamic nonlinear circumstances differs.
Experimental Test of Compressive Strength of Eco-Friendly Concrete Using 0%, 10%, 20% Aren Tree Powder Waste as a Substitute for Fine Aggregate Nugroho, Guntur
Jurnal Perspektif Vol 9 No 1 (2025): Jurnal Perspektif
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jp.v9i1.357

Abstract

Construction development in Indonesia is experiencing rapid progress, leading to various innovations in concrete mixtures using organic waste. Aren Tree Powder (ATP) waste is a solid waste from the tapioca industry obtained from the extraction process. One way to utilize this waste is by incorporating it into concrete mixtures as a substitute for fine aggregate, thereby reducing waste that pollutes the environment. The purpose of the research is to determine the compressive strength of concrete with a mixture of Aren Tree Powder (ATP) as a substitute for fine aggregate at 0%, 10%, and 20%. The research method used is experimental testing with concrete cylinder test specimens measuring 15cm in diameter and 30cm in height. The number of samples for each mix variation is 3 test specimens. The compressive strength test was conducted on concrete cylinder specimens that had cured for 28 days. The test results show average compressive strength values of 24.01MPa, 23.97MPa, 22.91MPa, at variations of 0%, 10%, 20%. The compressive strength of the concrete decreased by 0.16%, 4.52% for the 10%, 20% variations compared to normal concrete. The conclusion of the research shows that concrete with 10% and 20% variations falls into the medium-strength category, which can be used for reinforced concrete structures
Uji Eksperimen Kuat Tekan Beton Ramah Lingkungan Dengan Limbah Serbuk Karet Ban Bekas Sebagai Subtitusi Agregate Halus Nugroho, Guntur
Jurnal Ilmiah Ecosystem Vol. 25 No. 1 (2025): Ecosystem Vol. 25 No 1, Januari - April Tahun 2025
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35965/eco.v25i1.5800

Abstract

Beton merupakan salah satu material yang paling banyak digunakan dalam bidang konstruksi. Beton dengan penambahan campuran serbuk karet pada substitusi agregat halus merupakan beton inovasi dengan bertujuan untuk mengurangi dan memanfaatkan kembali limbah yang tidak terurai. Penelitian ini bertujuan untuk memeriksa pengaruh penambahan serbuk karet berbagai merek pada kuat tekan beton. Metode penelitian yang digunakan merupakan eksperimental di laboratorium. Benda uji yang digunakan berupa 12 buah beton silinder dengan tiga benda ui per variasi berdiameter 15 cm dan tinggi 30 cm. Campuran serbuk karet yang digunakan yaitu variasi 0%, 5%,10%, 15%, 20%. Parameter pengujian beton yang diuji adalah kuat tekan beton. Hasil pengujian pada kuat tekan variasi 0%, 5%,10%, 15%, 20% berturut-turut 8,7 MPa, 4,4 MPa, 4,05 MPa dan 2,5 MPa. Hasil yang diperoleh mengalami penurunan yang signifikan, hal tersebut dikarenakan fas yang digunakan kecil 0,35 dan pemadatan yang tidak sempurna sehingga terjadi keropos pada benda uji silinder beton. Concrete is a material that is widely used in the construction sector. Concrete with the addition of a mixture of rubber powder as a substitute for fine aggregate is an innovative concrete with the aim of reducing and reusing non-decomposing waste. This research aims to examine the effect of adding rubber powder of various brands on the compressive strength of concrete. The research method used is experimental in the laboratory. The test objects used were 12 cylindrical concrete pieces with three UI objects per variation with a diameter of 15 cm and a height of 30 cm. The rubber powder mixture used varies between 0%, 5%, 10%, 15%, 20%. The concrete test parameter tested is the compressive strength of the concrete. Test results on compressive strength variations of 0%, 5%, 10%, 15%, 20%. respectively 8.7 MPa, 4.4 MPa, 4.05 MPa and 2.5 MPa. The results obtained experienced a significant decrease, this was because the phase used was small at 0.35 and the compaction was not perfect so that porousness occurred in the cylindrical concrete specimens.
Kuat Lentur Beton Ramah Lingkungan dengan Penggunaan Limbah Serbuk Aren Sebagai Subtitusi Agregat Halus Nugroho, Guntur
TEKNIKA SAINS Vol 10, No 1 (2025): TEKNIKA SAINS
Publisher : Universitas Sang Bumi Ruwa Jurai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24967/teksis.v10i1.3953

Abstract

Pembangunan pada bidang konstruksi telah banyak mengalami perkembangan serta inovasi dalam segala aspek termasuk dalam pembuatan beton dengan menggunakan material limbah. Tujuan penelitian ini adalah untuk memanfaatkan penggunaan Limbah Serbuk Aren (LSA) untuk bahan campuran beton agar dapat mengurangi dan membatasi pencemaran lingkungan dari limbah padat sisa hasil industri. Pemanfaatan Limbah Serbuk Aren (LSA) dilakukan dengan cara mensubstitusikan limbah terhadap agregat halus untuk mendapatkan hasil kuat lentur beton dengan variasi 0 persen, 10 persen, 20 persen, 30 persen, dan 40 persen. Metode yang digunakan adalah pengujian eksperimen di laboratorium dengan benda uji berukuran 15x15x60cm dengan jumlah 3 benda uji pada setiap variasi campuran. Hasil penelitian menunjukan bahwa nilai kuat lentur 0 persen, 10 persen, 20 persen, 30 persen, dan 40 persen sebesar 4,12 MPa, 4,09 MPa, 3,60 MPa, 3,44 MPa dan 3,11 MPa. Berdasarkan analisis kuat lentur beton pada penelitian ini dapat simpulkan bahwa kadar campuran Limbah Serbuk Aren (LSA) sebesar 10 persen, 20 persen, 30 persen, dan 40 persen dapat menurunkan nilai kuat lentur 0,73 persen, 12,63 persen, 16,5 persen, 24,52 persen.
Review of Fly Ash-Based Zero-Cement Concrete Performance Fuqaha, Sameh; Zaki , Ahmad; Nugroho, Guntur
JURNAL SAINTIS Vol. 25 No. 02 (2025)
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/saintis.2025.vol25(02).21840

Abstract

The urgent need to reduce the environmental impact of construction materials has led to increasing interest in sustainable alternatives to Ordinary Portland Cement (OPC). Among emerging solutions, Zero-Cement Concrete (ZCC) utilizing fly ash (FA) as a primary binder offers a viable pathway for lowering CO₂ emissions and reusing industrial by-products. This review investigates the key components, mixing mechanisms, curing conditions, and mechanical performance of FA-based ZCC. FA, particularly Class F and Class C, in combination with alkaline activators such as sodium hydroxide (NaOH) and sodium silicate (Na₂SiO₃), plays a crucial role in the geopolymerization process that forms the cementitious matrix. The compressive strength, modulus of elasticity, and flexural strength of ZCC are influenced by multiple factors, including activator molarity, SS/SH ratio, binder-aggregate proportions, and curing regime. Experimental studies indicate that with optimized mixing and curing parameters, FA–ZCC can achieve mechanical performance comparable to or exceeding OPC concrete. However, the absence of standardized mix design procedures and field-curing strategies remains a challenge. This study highlights the need for further research on durability, life-cycle assessment, and in-situ applications to fully realize the potential of ZCC as a mainstream, eco-efficient construction material.
Experimental Test of Flexural Strength of Green Concrete Using 0%, 10%, 30% Waste Tire Rubber Powder as a Substitute for Fine Aggregate Nugroho, Guntur
Acceleration: Multidisciplinary Research Journal Vol. 3 No. 3 (2025): Acceleration: Multidisciplinary Research Journal
Publisher : PT Akselerasi Karya Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70210/amrj.v3i3.155

Abstract

The increasing demand for sustainable construction has driven the development of green concrete incorporating recycled waste materials. This study investigates the flexural strength of concrete partially substituting fine aggregate with waste tire rubber powder at 0%, 10%, and 30% replacement levels. Concrete beams measuring 150 mm × 150 mm × 600 mm were cast and tested at 28 days using third-point loading in accordance with ASTM C78. The experimental results show that the 10% rubber powder mix achieved the highest flexural strength, with a 52.5% increase compared to the control. In contrast, the 30% mix exhibited a moderate reduction in strength. Despite the slight decline at higher replacement levels, all mixes retained acceptable structural performance and workability without chemical admixtures. The findings suggest that partial substitution of fine aggregate with rubber powder up to 10% can enhance flexural behavior while promoting environmentally friendly concrete solutions.