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All Journal Rancang Bangun Clean Energy and Smart Technology
Dini Sofiana
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Mechanical Engineering Transportation

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FORMULATION OF CONCRETE COMPRESSIVE STRENGTH BASED ON BUILDING AGE, DENSITY, AND NON-DESTRUCTIVE TESTING WITH ULTRASONIC PULSE VELOCITY TESTS Khoeri, Heri; Wisnu Isvara; Roberto Pradana; Dini Sofiana
Clean Energy and Smart Technology Vol. 2 No. 2 (2024): April
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v2i2.85

Abstract

In the assessment of existing reinforced concrete buildings, the compressive strength of concrete, , is a key parameter for performance assessment. The most accurate way to identify it is by conducting compressive strength tests on core concrete samples from structural elements obtained through drilling. The more samples taken, the more accurate the determination of for structural modeling will be. However, sampling in buildings certainly disrupts activities within the building, compounded by drilling marks that leave traces even after repairs. Therefore, sample collection must be selective, yet the results must still provide confidence as input for structural analysis. A method for estimating using the ultrasonic pulse velocity test, UPVT, categorized as a Nondestructive Test, NDT, has long been used and continues to be developed. Various building regulations state that NDT for estimating should be paired with the results of compressive strength tests on core concrete samples to obtain correlation between them. The relationship equation between wave propagation velocity, , and varies between studies, indicating that besides , there are other influencing factors. In this study, samples were taken from 5 (five) buildings of different ages. In addition to , the effects of density, , and age, , were examined. The results of the study indicate that has no effect, while influences the relationship between V and according to the equation with .
Evaluasi Kekakuan dan Stabilitas Hauling Road Berdasarkan Modulus Deformasi Tanah Hasil Repetitive Static Plate Load Test: EVALUATION OF HAULING ROAD STIFFNESS AND STABILITY BASED ON SOIL DEFORMATION MODULUS FROM REPETITIVE STATIC PLATE LOAD TEST Khoeri, Heri; Dini Sofiana; Panji Nugroho
Jurnal Teknik Sipil : Rancang Bangun Vol. 12 No. 01 (2026): April 2026
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/rb.v12i01.5359

Abstract

Kinerja struktural hauling road ditentukan oleh kekakuan dan stabilitas tanah dasar akibat beban berat berulang. Evaluasi lapangan umumnya dilakukan menggunakan repetitive static plate load test dengan modulus deformasi siklus pembebanan lanjutan sebagai dasar pemenuhan kriteria desain, meskipun pendekatan satu parameter belum sepenuhnya menggambarkan kondisi awal dan evolusi kekakuan tanah dasar. Penelitian ini mengevaluasi kinerja subgrade hauling road menggunakan repetitive static plate load test pada beberapa titik uji yang mewakili berbagai jalur operasional. Analisis difokuskan pada respons pembebanan siklus awal dan lanjutan serta rasio peningkatan kekakuan sebagai indikator stabilisasi tanah. Hasil menunjukkan bahwa sebagian besar titik uji memenuhi modulus minimum desain, namun didominasi oleh rasio peningkatan kekakuan yang tinggi, yang mengindikasikan sensitivitas subgrade terhadap pembebanan awal. Titik yang tidak memenuhi kriteria desain berkorelasi dengan kekakuan awal yang rendah dan dominasi deformasi plastis. Temuan ini menegaskan bahwa evaluasi kinerja subgrade hauling road akan lebih komprehensif apabila pemenuhan kriteria desain dikombinasikan dengan analisis perilaku tanah akibat pembebanan berulang untuk mendukung pengendalian mutu dan strategi perbaikan yang lebih efektif dan berkelanjutan.
Co-Authors Heri Khoeri Panji Nugroho Roberto Pradana Wisnu Isvara