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All Journal Teknik Sipil dan Arsitektur Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Transformatika Indonesian Journal of Community Services Jurnal Teknik Sipil dan Arsitektur Jurnal Program Kemitraan dan Pengabdian Kepada Masyarakat Media Komunikasi Dunia Ilmu Sipil (MoDuluS) Jurnal Teknik Sipil Giratory Upgris Teknika Jurnal Publika Pengabdian Masyarakat Tematik International Journal of Sustainable Building, Infrastructure and Environment Widya Teknik
Slamet Budirahardjo
UNIVERSITAS PGRI SEMARANG
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Social Sciences Transportation Other

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ANALISIS PENGARUH SERBUK CANGKANG KERANG HIJAU SEBAGAI FINE AGREGAT TERHADAPKUAT TEKAN DAN KUAT LENTUR CAMPURAN BETON Setiawan, Yudi Wahyu; Septyawan, Bayu Adhy; Husodo, Ibnu Toto; Budirahardjo, Slamet
Jurnal Teknik Sipil Giratory UPGRIS Vol 1, No 2: Desember 2020
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i2.28468

Abstract

Along with advances technology in the field of construction. Concrete was used in construction activities such as high-rise buildings, bridges and dams. Concrete was defined as a composite material with the main constituent of fine aggregates, coarse aggregates, cement, and water. So much green seashells waste that made us interested to observe the effect of replacing shellfish shell powder on concrete mixtures on compressive strength and flexural strength of concrete. The aim of this study was to analyze the compressive strength and optimum flexural strength of the concrete with variations in clamshell powder 5%, 10%, and 20% at the age of 14 and 28 days. The research was carried out by means of mix design, by making Standard 25 MPa concrete samples as controls, then making a variation of concrete samples with a mixture of fine aggregates of shell powder with a composition of 5%, 10%, and 20% of fine aggregate requirements. Cylinder samples are used (Ø = 15 cm, h = 30 cm) and beams  (15  x  15  x  60  cm).  The  samples  were  compressive  strength  and  flexural strength at 14 and 28 days. From the results of the study at the age of 14 days the average value of the compressive strength of standard concrete was 25.46 MPa, in the mixture of 5% the compressive  strength  was  25.55  MPa,  the mixture of 10% was  29.504  MPa,  the mixture of 20% was 27.1 Mpa. From these result was known that the greatest compressive strength is 10%. While testing the flexural strength of the specimens in the form of blocks with (15 x 15 x 60 cm). From the results of the 14 day age test the average value of the standard concrete flexural strength obtained was 33.55 kg / cm², mixture 5% flexural strength value 45.33 kg / cm², 10% mixture obtained 53.9 kg / cm², mixture 20% flexural strength value 60.759kg / cm².
PENGARUH PEMAKAIAN AGREGAT HALUS (MUNTILAN, KALI BODRI, SINGOROJO) TERHADAP KUAT TEKAN BETON PADA VARIASI GEOMETRI SILINDER Abidin, Ali Nur; Panolas, Yoga Bagus; Budirahardjo, Slamet; Kristiawan, Agung
Jurnal Teknik Sipil Giratory UPGRIS Vol 3, No 1: Juni 2022
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v3i1.12849

Abstract

The use of concrete is increasing along with the times. The use of concrete as an option is due to the fact that concrete has high compressive strength properties. Core drill is a method of taking concrete samples in a building structure. The sample taken (cylindrical shape) is then taken to the laboratory for testing such as compressive strength. This study aims to analyze the compressive strength of concrete with a ratio of 1PC:2PS:3KR on a cylinder size of 15 x 30 cm, and a ratio of 1PC:2PS:3KR on a cylinder size of 10 x 15 cm, 10 x 18 cm, 10 x 20 cm, with fine aggregate (muntilan, kali bodri, and singgorojo). This study uses a quantitative approach with experiments. The sample of this study used hard concrete by replacing the fine aggregate of muntilan sand, Kali Bodri, and Singgorojo. The test shows the value of the compressive strength of concrete with a ratio of 1PC:2PS:3KR with a cylinder size of 15 x 30cm with fine aggregate aged 14 days, the value of the compressive strength of concrete (muntilan: 10.19 Mpa, times bodri; 8.90 Mpa, singorojo: 8 ,90 Mpa) and 21 days old (muntilan : 11.22 Mpa, Kali Bodri : 9.73 Mpa, Singgorojo : 9.34 Mpa). Tests using cylindrical geometry variations (10 x 20cm, 10 x 18cm, 10 x 15cm) affect the value of concrete strength and the use of different fine aggregates (muntilan sand, Kali Bodri, and Singgorojo) also affects the value of the compressive strength of concrete. From the results of the comparison 1PC:2PS:3KR the use of muntilan sand is more recommended for concrete construction materials because the compressive strength of muntilan sand concrete is higher.
Co-Authors Abdul Ghofur Abidin, Ali Nur Agung Kristiawan Agustina Wardani Arianto, Lutfian Dikma Ariawan, Donny Arifuddin, Arfendi Astiyani, Heni Bagus Priyatno Donny Ariawan Fadillah, M. Sadam Fajar Budi Prasetyo, Reno Martin Hartanti, Lusia Permata Sari Hermana, Rifki Ibnu Toto Husodo, Ibnu Toto Ikhwanudin Ikhwanudin Ikhwanudin Irfan, Misbakhul Kamal, Sukron Kusuma, Fiki Rifan Mohammad Debby Rizani Ni'am, Muhammad Choirul Noora Qotrun Nada, Noora Qotrun Nugroho, Galang - Panolas, Yoga Bagus Praptiningrum, Retno Dwi Putra Havia, Rafeiza Rizki Putri Anggi Permata Suwandi Rahmasari, Maria Asysyifa Rusyadi, Imron Sadewo, Wasis Aziz sandra, Susandra Saputra, Vian Guntur Septyawan, Bayu Adhy Setiawan, Yudi Wahyu Setyoningsih Wibowo Suci Ariani Khumairo’ Syaqiba, Arba Maris Tegar, Ais Anantatama Trisno Trisno Viantoro, Trinugroho Ardin Waliyansyah, Rahmat Robi WISNU SAPUTRA Yasin Musthofa Zakariya, Rifan Zakariya, Rif’an Zulfa, Ivana Zuliyanto, Muhammad Dwi