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All Journal Jurnal Teknik Sipil BERNAS: Jurnal Pengabdian Kepada Masyarakat Journal of Science and Education (JSE) Paulus Civil Engineering Journal Journal of Training and Community Service Adpertisi
Luciana Buarlele
Universitas Kristen Indonesia Paulus
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Pemanfaatan Limbah Kulit Singkong Sebagai Bahan Tambah Semen Pada Campuran Beton Pakilaran, Eleazar P. P.; Buarlele, Luciana; Sanggaria, Olan Jujun
Paulus Civil Engineering Journal Vol. 7 No. 3 (2025): Paulus Civil Engineering Journal V7N3 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/j6k3cm08

Abstract

This study uses cassava peel ash as a cement additive in concrete mixtures. As an important crop in many tropical countries, cassava produces a lot of waste during its processing, mostly in the form of cassava peels. One interesting material is cassava peel ash from cassava processing which is added to concrete. The purpose of this study was to determine the effect of cassava peel ash (AKS) addition in varying amounts to cement, namely 0%, 2%, 4%, and 6% on the compressive strength, split tensile strength, and flexural strength values of concrete mixtures. The mix design method uses SNI 7565:2012, fresh concrete testing uses SNI 1973:2008, compressive strength SNI 1974:2011, split tensile strength SNI 2491:2014, and flexural strength of concrete using SNI 4431:201. This research was conducted in the Concrete Laboratory of Civil Engineering of Universitas Kristen Indonesia Paulus. Based on the weight of cement, the amount of cassava peel ash used varied from 0%, 2%, 4%, and 6%. The compressive strength that meets the plan quality is found in variations of 0, and 2%, for split tensile strength and flexural strength, the variation in the addition of AKS values decreases. Concrete quality decreased with increasing AKS variation.
Penggunaan Agregat dari Sungai Sarambu Ratte Balla Kecamatan Bittuang Kabupaten Tana Toraja Sebagai Campuran Beton Luciana Buarlele; Erni Rante Bungin; Alias Belopa
Paulus Civil Engineering Journal Vol. 7 No. 1 (2025): PCEJ Vol.7, No.1, Maret 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/hkdt7g90

Abstract

The Sarambu Ratte Balla River has a fairly clean aggregate, which can be seen visually with a clear river flow, making the Sarambu Ratte Balla river one of the sources of aggregate that can be utilised by the local community. The purpose of this study was to assess the compressive strength, split tensile strength, and flexural strength.This research was conducted at the Structure and Materials Laboratory, Siipiil Engineering Study Programme, Faculty of Engineering, University of Indonesia Paulus University. Method used in the mix design is SNI 7656:2012. The actual compressive strength test results for the design mix of 25 MPa concrete at 28 days reached 25.832 MPa, with a splitting tensile strength of 2.475 MPa and a flexural strength of 2.441 MPa, all meeting the design strength criteria for concrete. The actual compressive strength test results for the design mix of 30 MPa concrete at 28 days reached 30.451 MPa, with a splitting tensile strength of 2.875 MPa and a flexural strength of 3.146 MPa. Conclusion in this study has good results as a concrete mixture. This can be observed from the results of concrete testing that meets the quality of the plan, namely 25 MPa and 30 MPa.
Pemanfaatan Limbah Kulit Singkong Sebagai Bahan Tambah Semen Pada Campuran Beton Eleazar P. P. Pakilaran; Luciana Buarlele; Olan Jujun Sanggaria
Paulus Civil Engineering Journal Vol. 7 No. 3 (2025): Paulus Civil Engineering Journal V7N3 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/j6k3cm08

Abstract

This study uses cassava peel ash as a cement additive in concrete mixtures. As an important crop in many tropical countries, cassava produces a lot of waste during its processing, mostly in the form of cassava peels. One interesting material is cassava peel ash from cassava processing which is added to concrete. The purpose of this study was to determine the effect of cassava peel ash (AKS) addition in varying amounts to cement, namely 0%, 2%, 4%, and 6% on the compressive strength, split tensile strength, and flexural strength values of concrete mixtures. The mix design method uses SNI 7565:2012, fresh concrete testing uses SNI 1973:2008, compressive strength SNI 1974:2011, split tensile strength SNI 2491:2014, and flexural strength of concrete using SNI 4431:201. This research was conducted in the Concrete Laboratory of Civil Engineering of Universitas Kristen Indonesia Paulus. Based on the weight of cement, the amount of cassava peel ash used varied from 0%, 2%, 4%, and 6%. The compressive strength that meets the plan quality is found in variations of 0, and 2%, for split tensile strength and flexural strength, the variation in the addition of AKS values decreases. Concrete quality decreased with increasing AKS variation.
Co-Authors A. Muh. Arif Bijaksana A. Muhammad Arif Bijaksana A. St. Fatmawaty Ade Sugiarti Ade Sugiarti Kumalasari Alias Belopa Alias Belopa Benny Kusuma Benny Kusuma Benny Kusuma Bijaksana, A. Muh. Arif Bijaksana Bobby Adianto Rima Bungin, Erni Rante Eleazar P. P. Pakilaran Erni Rante Bungin Fatmawaty, A. St. Fatmawaty Febriani, Lisa Frans Phengkarsa Helen A.I. Sopacua Hendrayana Immanuel, Putra Jonie Tanijaya Jonie Tanijaya Khaeriyah Khaeriyah, Khaeriyah Lulus Ananto Mangiwa Mara, Junus Michael Fernando Poli Muhammad Nasrun Olan Jujun Sanggaria Pakilaran, Eleazar P. P. Palian, Tria Mahyuni Phengkarsa, Frans Putra Imanuel Radjawane, Louise Elizabeth Rafilus Sampe Rapan, Abdianta Rima, Bobby Adianto Singgih, Hanna Sriutami Saputri Agi Tanijaya, Jonie Tria Mahyuni Palian Wong, Irwan Lie Keng Yertas, Ariel Pither