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All Journal SAINSTEK Structures, Infrastructure, Planning, Implementation, and Legislation
Erny
Institut teknologi dan bisnis Indragiri
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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Critical Performance Assessment of Precast Concrete Quality in High-Rise Buildings Compliance with National Standards Muhammad Hunsan; Erny; Erniati Bachtiar; Arman Setiawan; Rita Hardianti Aris
Structures, Infrastructure, Planning, Implementation, and Legislation Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/sipil.v1i2.315

Abstract

This study critically assesses Precast Concrete (PC) quality compliance in Indonesian high-rise buildings by comparing material strength, geometric tolerances, and seismic connection performance against SNI requirements. Using five years of official inspection data (2020–2025) from 120 certified lots (BSN/PUPR), the analysis identifies recurring non-compliance, including a 15.0% compressive strength defect rate, 8.5% AOQ, and 17.1% reinforcement cover deficiencies that may compromise structural durability. Wet joints exhibit better seismic resilience (μ = 4.5) than dry joints (μ = 3.8), though dry joints show pinching effects that reduce energy dissipation.Key root causes include moisture instability, admixture dosing errors, and precision gaps, revealing a persistent mismatch between documented procedures and actual statistical quality control. The study recommends implementing automated QC systems and strengthening SNI certification through more rigorous statistical approaches. Future work should integrate machine-learning predictive models using real-time factory data to enhance defect prevention.
Sustainable Utilization of Local Natural Aggregates for Eco-Friendly Concrete Production: Integrating Geospatial and Regional Economic Data in West Java, South Sumatra, and South Sulawesi Anugrah; Erny; Erniati Bachtiar; Arman Setiawan; Rita Hardianti Aris
Structures, Infrastructure, Planning, Implementation, and Legislation Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/sipil.v1i2.323

Abstract

This study tackles the persistent environmental and economic complexities associated with conventional concrete manufacturing by establishing a novel sustainable production framework. This framework strategically integrates geospatial data on local aggregate reserves with key regional economic variables, focusing specifically on West Java, South Sumatra, and South Sulawesi as representative study areas in Indonesia. Leveraging Geographic Information System (GIS) technology and official statistics from the Geospatial Information Agency (BIG), alongside regional economic indices from the Central Statistics Agency (BPS), the investigation meticulously analyzed the spatial arrangement of high-quality aggregates, material price fluctuations, and crucial logistics expenditures. A multiple linear regression model was employed for quantitative analysis, which decisively revealed that aggregate pricing (=0.62, p < 0.001) and logistics expenses (=0.31, p < 0.05) are the predominant cost drivers in sustainable concrete production, whereas aggregate technical quality contributes a smaller, measurable influence (=0.09, p > 0.05). The exceptional coefficient of determination (R2=0.89) substantiates the model's predictive power and its practical utility for cost management and optimization within eco-friendly concrete systems. Ultimately, this research emphasizes the critical necessity of converging environmental, technical, and economic data for effective resource stewardship. It also proposes future scholarly endeavors should focus on integrating real-time monitoring and advanced digital supply chain technologies to further bolster the sustainability credentials of the domestic construction industry.
Analisis Implikasi Perendaman Air Hujan Terhadap Kinerja Perkerasan Aspal Berdasarkan Parameter Marshall Sahriyal Sahriyal; Erny; Riza Pahlifi
SAINSTEK Vol. 14 No. 1 (2026)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v14i1.444

Abstract

Perkerasan jalan memiliki peranan penting dalam mendukung mobilitas dan pertumbuhan ekonomi, namun kinerjanya sangat dipengaruhi oleh faktor lingkungan, khususnya air hujan. Infiltrasi air hujan ke dalam lapisan perkerasan dapat menurunkan daya ikat antara aspal dan agregat sehingga mempercepat kerusakan jalan. Penelitian ini mempunyai tujuan guna menganalisis pengaruh perendaman air hujan kepada  nilai stabilitas, flow, serta parameter Marshall berupa Void in Mix (VIM), Void in Mineral Aggregate (VMA), dan Void Filled with Asphalt (VFA), serta mengevaluasi implikasinya terhadap kinerja perkerasan aspal. Penelitian menerapkan metode eksperimen laboratorium melalui pengujian Marshall pada benda uji campuran aspal yang direndam menggunakan air hujan melalui variasi waktu 24 jam, 48 jam, 72 jam, 120 jam, dan 168 jam. Campuran aspal dirancang menggunakan metode Marshall untuk memperoleh kadar aspal optimum sebelum dilakukan pengujian. Hasil penelitian menunjukkan bahwasanya lamanya waktu perendaman, menurun juga nilai stabilitas campuran aspal, sedangkan nilai flow mengalami peningkatan. Nilai VIM dan VMA cenderung meningkat masing-masing sebesar 4,25 % dan 15,55%, sementara nilai VFA mengalami penurunan sebesar 72,67 % akibat masuknya air ke dalam rongga campuran yang menyebabkan berkurangnya daya ikat aspal terhadap agregat.. Perendaman air hujan menyebabkan penurunan nilai stabilitas dan Marshall Quotient (MQ) masing-masing sebesar 29,07 % dan 235 kg/mm serta peningkatan nilai Void in Mix (VIM) sebesar 4,25%, yang mengindikasikan melemahnya ikatan aspal-agregat dan menurunnya kinerja perkerasan aspal terhadap beban lalu lintas. Kondisi tersebut menunjukkan bahwa perendaman air hujan memberikan dampak negatif kepada kinerja perkerasan aspal karena mempercepat terjadinya moisture damage yang dapat mengurangi umur layanan perkerasan jalan
Co-Authors Anugrah Arman Setiawan Erniati Bachtiar Muhammad Hunsan Rita Hardianti Aris Riza Pahlifi Sahriyal Sahriyal