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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Teras Jurnal Journal of Engineering and Scientific Research (JESR)
Vera Agustriana Noorhidana
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Other

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Pengaruh Styrofoam sebagai Pengganti Sebagian Agregat Kasar terhadap Sifat Mekanik Self-compacting Concrete (SCC) Agustin, Cahyani Putri; Helmi, Masdar; Noorhidana, Vera Agustriana; Isneini, Mohd
Teras Jurnal : Jurnal Teknik Sipil Vol. 15 No. 2 (2025): Teras Jurnal (September)
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v15i2.1284

Abstract

Abstrak   Styrofoam merupakan salah satu solusi untuk mengurangi beban mati pada struktur. Styrofoam dalam beton dapat berperan sebagai pengisi udara yang menciptakan void, sehingga styrofoam dapat menghasilkan beton yang lebih ringan. Penelitian ini dilakukan dengan mengganti sebagian agregat kasar dengan 10%, 20%, dan 30% butiran styrofoam pada SCC (Self-compacting Concrete). Hasil uji menunjukkan bahwa semakin tinggi kadar styrofoam, maka akan semakin rendah berat volume, kuat tekan, kuat tarik, kuat lentur, dan akan semakin tinggi daya serap air beton tersebut. Hasil optimum yang diperoleh berdasarkan pengujian kuat tekan, kuat tarik belah, dan kuat lentur ada pada beton dengan kadar styrofoam 10%, dengan hasil pengujian berturut-turut yaitu, 20,6227 MPa, 2,348 MPa, dan 4,3148 MPa, sedangkan untuk Penyerapan air tertinggi terjadi pada BS3 (styrofoam 30%), yang menghasilkan 12,4450% peningkatan daya serap.    Kata kunci: Styrofoam, berat volume, sifat mekanik, self compacting concrete (SCC)   Abstract   Styrofoam is one of the solutions to reduce dead loads on structures. Styrofoam in concrete can act as an air filler that creates voids, so styrofoam can produce lighter concrete. This research was carried out by replacing part of the coarse aggregate with 10%, 20%, and 30% styrofoam granules in SCC (Self-compacting Concrete). The test results show that the higher the styrofoam content, the lower the volume weight, compressive strength, tensile strength, bending strength, and the higher the water absorption of the concrete. The optimum results obtained based on the testing of compressive strength, tensile strength, and flexural strength were on concrete with a styrofoam content of 10%, with consecutive test results of 20.6227 MPa, 2.348 MPa, and 4.3148 MPa, while for the highest water absorption occurred in BS3 (30% styrofoam), which resulted in a 12.4450% increase in absorbency.    Kata kunci: Styrofoam, weight volume, mechanical properties, self-compacting concrete (SCC)
Analisis Faktor-faktor Yang Mempengaruhi Mutu Beton Ready Mix Suri, Yola Andara Pratami; Noorhidana, Vera Agustriana; Helmi, Masdar; Isneini, Muhammad; Wahono, Endro Prasetyo
Teras Jurnal : Jurnal Teknik Sipil Vol. 14 No. 1 (2024): Volume 14 Nomor 1, Maret 2024
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v14i1.1049

Abstract

Abstrak Batching Plant sebagai pengolah beton ready mix untuk pembangunan jalan. Dahulu terjadi penurunan mutu beton laboratorium dan lapangan. Akhirnya melatar belakangi penelitian dengan tujuan menganalisis faktor penyebab penurunan mutu seperti; standarisasi SNI material, waktu tempuh beton ke lapangan, perlakuan sampel, komposisi beton. Langkah yang digunakan ialah pengujian material, uji slump dan suhu campuran di laboratorium dan lapangan, mencatat waktu perjalanan dan tuang beton, pembuatan sampel lapangan dan laboratorium, pembuatan sampel khusus, pengujian kuat tekan beton mutu fc10 MPa dan kuat tarik lentur beton mutu Fs4,5 MPa usia 7 dan 28 hari, menggunakan Statistical Quality Control (SQC). Hasil kuat tekan dan kuat tarik lentur sampel laboratorium dan lapangan tidak konstan bahkan berada dibawah nilai (LCL). Penyebabnya pasir dengan kadar lumpur diatas 5%. Mengatasinya dengan penambahan Admixture, admixture Naptha E-121 0,9% menjadi 1,2%, Naptha RD-31 0,2% sampel balok dan Naptha E-121 0,3% menjadi 0,6%, Naptha RD-31 0,2% silinder. Kata kunci: Beton, Statistical Quality Control, Admixture  Abstract Batching Plant as a readymix concrete processor for road construction. In the past, there was a decline in the quality of laboratory and field concrete. Finally, the background for research with the aim of analyzing the factors causing quality decline such as; SNI standardization of materials, concrete travel time to the field, sample treatment, concrete composition. The steps used are material testing, slump testing and mixture temperature in the laboratory and field, recording travel and pouring times for concrete, making field and laboratory samples, making special samples, testing the compressive strength of FC'10 MPa quality concrete and the flexural tensile strength of Fs quality concrete. '4.5 MPa aged 7 and 28 days, using Statistical Quality Control (SQC). The results of the compressive strength and flexural tensile strength of laboratory and field samples are not constant and are even below the (LCL) value. The cause is sand with a mud content above 5%. Overcome this by adding admixture, admixture Naptha E-121 0.9% to 1.2%, Naptha RD-31 0.2% for beam samples and Naptha E-121 0.3% to 0.6%, Naptha RD-31 0 .2% cylinder. Keywords: Concrete, Statistical Quality Control, Admixture
Co-Authors Agustin, Cahyani Putri Andhini, Vania Meutia Andi Setiawan Anggraeni, Sylvia Dewi Calosa, Evanthe DWSBU, Chatarina Niken Eddy Purwanto Endro Prasetyo Wahono Fikri Alami Gusti, Melinda Halawa, Vince Nukrisman Hasti Riakara Husni Hussein, Imam Isneini, Mohd Isneini, Muhammad karami, muhammad Laksmi Irianti Laksmi Irianti Irianti Masdar Helmi Mohd. Isneini Putra, Asyrofi Miranda Putra, Mayka Purnama Putri, Nur Mila Putri, Yoleta Tri Rahmanisa, Laila Indah Ratna Widyawati Riana, Netta Ristama, M Alvany Veschonanda Sahast, Corry Jayaputri Sasana Putra, Sasana Suma, Damas Novalda Suri, Yola Andara Pratami Surya Sebayang Tas'an Junaedi Junaedi Ulini'am, Adipati Syahidullah Utami, Tri Ratna Yonanda, Prima Sandy