Claim Missing Document
Check
Articles

Found 2 Documents
Search

Pengaruh Penambahan Limbah Tempurung Kelapa Sebagai Bahan Tambah Pada Kuat Tekan Batako M Aridya Dwiki Cahya; Henggar Risa Destania; Marguan Fauzi
Jurnal Tekno Global Vol. 11 No. 2
Publisher : UNIVERSITAS INDO GLOBAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/jtg.v11i2.3050

Abstract

ABSTRACT At this time the use of bricks as a wall building material has begun to be widely used, this is because the manufacturing process is more efficient compared to making red bricks. Therefore, in this study, coconut shell waste will be used as additional material to test the compressive strength of bricks and determine the best percentage of coconut shell waste added in the brick mixture. The purpose of this study was to determine the effect of adding coconut shell waste on the strength of brick determination and to determine the best percentage of brick mixture with added shell waste. The research method used is an experimental method. The test results show that bricks with 3% and 4% coconut shell added materials are very influential on the compressive strength of bricks can provide a change of 6%. However, the addition of too many added materials causes a decrease in the compressive strength value of the bricks, because the added materials do not react with the brick mixture. The best percentage occurs in the addition of coconut shell fragments by 3% by producing an average brick compressive strength value of 11.63 Mpa. Keywords: Brick, Compressive Strength, Coconut Shell ABSTRAK Pada saat ini penggunaan batako sebagai bahan penyusun dinding sudah mulai banyak digunakan, hal ini karena proses pembuatannya yang lebih efisien dibandingkan dengan dengan pembuatan batu bata merah. Oleh karena itu, pada penelitian ini akan dipakai limbah tempurung kelapa yang akan digunakan sebagai bahan tambah pengujian kuat tekan batako dan menentukan persentase terbaik dari limbah tempurung kelapa yang ditambahkan dalam campuran batako. Tujuan dilakukannya penelitian ini adalah untuk mengetahui pengaruh penambahan limbah tempurung kelapa terhadap kuat tekab batako dan untuk mengetahui persentase terbaik campuran batako dengan bahan tambah limbah tempurung. Metode penelitian yang digunakan adalah metode eksperimental. Hasil pengujian menunjukan batako dengan bahan tambah tempurung kelapa 3% dan 4% sangat berpengaruh terhadap kuat tekan batako mampu memberikan perubahan sebesar 6%. Akan tetapi dengan penambahan bahan tambah terlalu banyak menyebabkan penurunan terhadap nilai kuat tekan batako, dikarenakan bahan tambah tidak bereaksi dengan campuran batako. Untuk persentase terbaik terjadi pada penambahan pecahan tempurung kelapa sebesar 3% dengan menghasilkan nilai kuat tekan batako rata-rata sebesar 11,63 Mpa. Kata kunci: Batako, Kuat Tekan Batako, Tempurung Kelapa.
Compressive Strength and Damage Simulation of Type V Cement-Based Concrete with GGBFS Addition Audiyati Ishmata Hani'a; Norma Puspita; Marguan Fauzi
Jurnal Teknik Sipil dan Perencanaan Vol. 27 No. 2 (2025): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v27i2.30023

Abstract

The durability of concrete structures in marine environments is often compromised by exposure to aggressive chemical agents. Although Type V cement is designed for high sulphate resistance, it remains susceptible to chloride penetration and magnesium-induced softening. This study investigates the mechanical performance of Type V cement-based concrete modified with GGBFS under simulated marine conditions. Specimens with 0%, 2%, 4%, and 6% GGBFS replacement were cast and cured in synthetic seawater for 7, 14, and 28 days before a compressive strength test. Experimental results showed that 2% GGBFS addition yielded the highest compressive strength of 48.12 MPa, which outperformed the regular concrete (42.32 MPa) at 28 days. Numerical simulations using the Mazars damage model in Cast3M were conducted to complement experimental findings, with mesh densities between 16 and 32 sides. Both experimental and modeling results were compared to BS EN 12390-3:2009 standards to categorize damage patterns. The analysis demonstrated that concrete with 2% dan 4% GGBFS exhibited satisfactory damage behaviour, while 0% and 6% GGBFS mixtures were classified as unsatisfactory. Further, the 16-sided mesh configuration generated damage patterns comparable to 2% and 4% GGBFS specimens, whereas the 32-sided mesh closely aligned with damage characteristics of 0% and 6% GGBFS concrete. This study highlights a novel experimental-numerical framework for optimizing GGBFS levels in marine conditions, demonstrating that integrated approaches effectively enhance performance evaluation and durability assessment.