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All Journal Journal La Multiapp Innovative: Journal Of Social Science Research
Hamdani, Hafiz
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Studi Kuat Tekan Beton Pada Agregat Halus Dengan Kadar Lumpur Berlebih Menggunakan Penambahan Bahan Aditif Ridho, Syarifunnaji; Hamdani, Hafiz; Fitrayudha, Adryan; Haryadi, Haryadi
Innovative: Journal Of Social Science Research Vol. 5 No. 4 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i4.20999

Abstract

Beton merupakan material konstruksi yang sering digunakan karena kuat terhadap gaya tekan,namun mutunya sangat dipengaruhi oleh kualitas agregat halus, khususnya kadar lumpur. Penelitianini bertujuan membandingkan kuat tekan beton normal dengan kadar lumpur <5%, beton dengankadar lumpur >5%, serta beton berkadar lumpur >5% dengan penambahan aditif berjenisplasticizer. Pengujian kuat tekan dilakukan pada umur 3 hari dan 28 hari. Hasil menunjukkan betonnormal memiliki nilai 14,9 MPa pada 3 hari dan 27,6 MPa pada 28 hari, melampaui kuat tekanrencana 25 MPa. Beton dengan lumpur >5% turun menjadi 11,7 MPa pada 3 hari dan 15,4 MPa pada28 hari. Penambahan aditif meningkatkan mutu, pada dosis kecil menjadi 13,3 MPa dan 20,3 MPa,sedangkan dosis menengah mencapai 15,0 MPa dan 25,9 MPa. Aditif dosis menengah terbuktiefektif memulihkan mutu beton hingga mendekati beton normal dan memenuhi target.Kata Kunci: Agregat Halus, Bahan Aditif, Beton, Kadar Lumpur, Kuat Tekan
Material Volume Efficiency Study Using Tekla Structure and Revit Software Suta, Tipala Prama; Hamdani, Hafiz; Ilmi, Muhammad Khalis
Journal La Multiapp Vol. 6 No. 5 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i5.2445

Abstract

The development of technology in the construction industry drives the need for efficient and accurate planning methods, especially in material volume estimation which affects the budget and smooth running of the project. This study aims to compare the efficiency of material volume estimation between Two Building Information Modelling-Base software, namely Tekla Structure and Autodesk Revit. The study was conducted on the construction project of DPRD Building in North Lombok Regency. The method used includes modelling the main building structure such as foundations, sloofs, columns, beams, floor slabs, and roof structures in both software base on the same technical data. The estimated concrete volume and reinforcement weight data from each software were then analyzed quantitatively and compared with the conventional method. The results show that the concrete volume of the conventional method is about 7,8% larger than the results from Revit and Tekla. Meanwhile, the conventional method’s estimated reinforcement wight is up to 17,6% higher. Each software provides almost identical outputs, albeit with different approaches and interface. The efficiency is particularly noticeable in structural elements such as beams and floor slabs. These findings suggest that the use of BIM in the planning process can improve the accuracy of material estimation, minimize potential waste, and support more effective and accurate construction planning.
Comparative Study of the Compressive Strength of SCC with Sika ViscoCrete 3155N and Sika SIKACIM Concrete using Destructive Testing Azani, Ahmad Ali; Hariyadi, Hariyadi; Hamdani, Hafiz; Pascanawaty, Maya Saridewi
Journal La Multiapp Vol. 6 No. 5 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i5.2461

Abstract

Self-Compacting Concrete (SCC) is one of the key innovations in modern concrete technology, offering the ability to flow and fill formwork automatically without the need for mechanical compaction, made possible through the use of specialized chemical admixtures. This self-flowing property is derived from the high deformability of fresh concrete. To assess these characteristics, a slump flow test is conducted to evaluate the concrete’s ability to spread under its own weight. This study focuses on the uniformity of compressive strength in SCC incorporating two different types of admixtures. The concrete specimens were cylindrical, with a diameter of 15 cm and a height of 30 cm. Two types of superplasticizers SIKA ViscoCrete 3155N and SIKA Sikacim Concrete were used in the SCC mixtures for each sample group. Subsequently, the uniformity of the concrete was evaluated through destructive testing, specifically compressive strength testing, to determine the resulting compressive strength values. Based on the compressive strength tests conducted at 3 days of age, the following average values were obtained: the control (normal) concrete yielded an average compressive strength of 15.14 MPa; the SCC with 0.8% SIKA ViscoCrete 3155N achieved an average strength of 21.04 MPa; while the 2% dosage of the same admixture resulted in a lower average strength of 11.68 MPa. For SCC with 1% SIKA Sikacim Concrete, the average compressive strength was 12.78 MPa, and at 2% dosage, the average strength was 13.38 MPa.
Comparative Analysis of the Support Capacity and Settlement of Bored Pile Foundations Using Manual Methods and Allpile Software: Case Study Hidayatulloh, Syarif; Pascanawaty, Maya Saridewi; Hamdani, Hafiz; Fitrayudha, Adryan
Journal La Multiapp Vol. 6 No. 6 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i6.2530

Abstract

Foundations are structural elements that function to bear the load of a building and transfer it to the ground to a certain depth. Foundations must be designed so that the transferred load does not exceed the bearing capacity of the soil, as this can cause excessive settlement and lead to structural collapse. The purpose of this study is to determine the comparison of bearing capacity and settlement of bored pile foundations in the Poltekkes Kemenkes Mataram building using two approaches: the manual method and the Allpile software. The analysis was conducted based on secondary data obtained from the Detailed Engineering Design (DED), results of the Standard Penetration Test (SPT), and laboratory soil test results. The results of the manual Meyerhof method yielded an ultimate bearing capacity of 13,127.79 kN and a single pile settlement of 0.0455 m. The manual Reese and Wright method yielded an ultimate bearing capacity of 2,697.3453 kN and a single pile settlement of 0.0241 m. Meanwhile, the Allpile software calculation yielded an ultimate bearing capacity of 14,391.891 kN and a single pile settlement of 0.0027 m. All settlement values, both for single piles and groups, remain below the maximum permitted limit.
Co-Authors Adryan Fitrayudha Azani, Ahmad Ali Hariyadi, Hariyadi Haryadi - Ilmi, Muhammad Khalis Maya Saridewi Pascanawaty, Maya Saridewi Ridho, Syarifunnaji Suta, Tipala Prama Syarif Hidayatulloh