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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) Indonesian Journal of Geography Inersia : Jurnal Teknik Sipil dan Arsitektur Jurnal Teknik Sipil Jurnal Teknik Sipil dan Perencanaan Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Teras Jurnal Journal of the Civil Engineering Forum Civil Engineering Dimension Civil Engineering Journal Jurnal Aplikasi Teknik Sipil Jurnal Teknik EPI International Journal of Engineering Action Research Literate (ARL) International Journal of Research in Vocational Studies (IJRVOCAS) Jurnal Pustaka Mitra : Pusat Akses Kajian Mengabdi Terhadap Masyarakat Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Jurnal Pusat Inovasi Masyarakat Journal Of Sustainability Perspectives Journal of Sustainability Perspectives Indonesian Geotechnical Journal Policy Brief Pertanian, Kelautan, dan Biosains Tropika Journal of Civil Engineering and Vocational Education Jurnal Greenation Ilmu Teknik (Journal of Environmental Sustainability Management) J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Putra, Heriansyah
Department Of Civil And Environmental Engineering, Bogor Agricultural University, Darmaga, Bogor, 16680, INDONESIA
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Journal : Civil Engineering Dimension

 1 
Improving Shear Strength Parameters of Sandy Soil using Enzyme-Mediated Calcite Precipitation Technique Heriansyah Putra; Hideaki Yasuhara; Naoki Kinoshita; Erizal .; Tri Sudibyo
Civil Engineering Dimension Vol. 20 No. 2 (2018): SEPTEMBER 2018
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.18 KB) | DOI: 10.9744/ced.20.2.91-95

Abstract

Several methods have been established for their various potential applications as soil improvement technique, and recently the application of grouting technique using biological process have been proposed. This study discussed the applicability of enzyme-mediated calcite precipitation (EMCP) in improving the shear strength parameters of sandy soil.  In this study, soil specimens were prepared and treated with the grouting solutions composed of urea, calcium chloride, magnesium sulfate and enzyme of urease. Evolutions in the cohesion and internal friction angle of the improved soil were examined through the direct shear tests. The presence of the precipitated materials, comprising 4.1 percent of the soil mass of the treated sand, generated a cohesion of 53 kPa. However, contrary to the improvement of cohesion, the friction angle is relatively constant. It indicated that the application of the EMCP technique has no significant impact on the friction angle
Promoting Precipitation Technique using Bio-Chemical Grouting for Soil Liquefaction Prevention Heriansyah Putra; Hideaki Yasuhara; Naoki Kinoshita; Muhammad Fauzan
Civil Engineering Dimension Vol. 22 No. 1 (2020): MARCH 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.047 KB) | DOI: 10.9744/ced.22.1.1-5

Abstract

The applicability of bio-chemical grouting as the environmentally friendly and economically method for liquefaction remediation was evaluated. Several combinations of organic and in-organic precipitations methods were conducted to obtain the optimum grouting solution. Organic precipitation method employs a bio-agent of urease enzyme to dissociate urea into ammonium and carbonate ions. The produced carbonate ions are precipitated as calcite crystals in the presence of calcium ions. Meanwhile, the in-organic methods were performed using chemical compounds only, without the bio-agent. Unconfined compressive strength (UCS) tests were performed to evaluate the applicability of the grouting solutions for improving the soil strength. Grouting solution is injected into the prepared sand samples. The sand samples with a relative density of 50% were treated with one and two PV for 3-day curing times. The experimental results showed that the organic precipitation method produced the high precipitated amount and resulted in the significant improvement in the strength of the treated sand. The presence of the precipitated materials within the grains of soil generated the strength of 272 kPa. The results of this study have elucidated that the organic precipitation method composed of calcium chloride, magnesium sulfate, urea and enzyme of urease may be an alternative soil-improvement technique to prevent the liquefaction susceptibility.
The Utilization of Milk as a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack-Healing in Concrete Zalfa Maulida Ihsani; Heriansyah Putra
Civil Engineering Dimension Vol. 23 No. 1 (2021): MARCH 2021
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (691.707 KB) | DOI: 10.9744/ced.23.1.54-61

Abstract

This study discussed the applicability of the calcite precipitation method to repair the concrete's crack. The grouting solution of Enzyme-Mediated Calcite Precipitation (EMCP) was modified by adding milk as a catalyst in calcite formation. Cracks in concrete samples were made when the concrete was 28 days with a width of 0.1-0.3 mm. The EMCP solution composed of urease, urea, CaCl2, and milk was injected into the cracked concrete sample, and its effect on permeability and compressive strength tests were evaluated. The result shows that the optimum composition of milk used in the formation of calcite had a concentration of 5 g/L with an initial preparation temperature of 70oC, which produced 26% higher than the initial EMCP solution. The mechanical test results show that the reduction of coefficient of permeability of 92.23% compared to the cracked sample and the improve strength up to 98.75% of the non-cracked sample were obtained by three circles injection. This study elucidated that milk utilization as a catalyst material in repairing cracks with the EMCP method is a potential method for crack-healing concrete.
Improvement of Shear Strength of Clay Shale Soil using Polymer-Calcite Precipitation (PCP) as Soil Stabilization Technique Ramadhan, Fathur; Fauzan, Muhammad; Putra, Heriansyah; Sudibyo, Tri
Civil Engineering Dimension Vol. 27 No. 2 (2025): SEPTEMBER 2025
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.27.2.214-222

Abstract

Clay shale is an expansive soil owing to its shrinkage and expansion, leading to geotechnical issues, such as loss of strength. This study explored the effectiveness of the Polymer–Calcite Precipitation (PCP) method in improving clay shale's shear strength. This study evaluated the optimum Polyvinyl Alcohol (PVA) concentration for enhancing the shear strength and identifying the residual shear strength of the treated soil. Various tests were conducted to determine the soil properties and assess soil improvement using direct shear tests. The results indicate that adding PVA increases the cohesion value of saturated clay shale and maintains its residual strength close to its peak strength value, with the optimum concentration of 4% PVA boosting cohesion from 4.47 kPa to 32.83 kPa. In conclusion, the PCP method effectively enhances the shear strength of clay shale and offers a potential solution for soil stabilization.
Co-Authors Achmad Hafidz Agus Purwito Akbar Renaldi Loebis Alfian Helmi Alifah Fidela Amigunani, Zahra Wajdini Amperanoto, Agus Ananda, Fauzan Raflinur Andes Ismayana Andra Ardiana Angga Prayoga Angie Irmajulianna Annisa Daniswara Apriadi, Apriadi Apriadi, Apriadi Ari Setiawan Arief Nugroho, Danang Arief Sabdo Yuwono Arif Satria Aryanti, Windy D Aswin Lim Athourrohman, Muhammad Aulia Andi Mustika Bella Yuliani Bilqist, Fitri W Budi Purwanto Budijanto Widjaja Daniswara, Annisa Debendra Neupane Devya Meisnnehr Devyan Meisnnehr Dian Hestiyantari Dimas Kharizmi Albar Dodik Ridho Nurrochmat Dwi Utami , Anisa Eka Putra, Reza Erizal Erizal , Erizal . Erizal Erizal Fadla Salma Fitriyah Faiq, Muhammad F Fauzan Subeantoro Fazrina Andriani Sakinah Lubis Febrianto, Ari Febrita, Joana Fifi Gus Dwiyanti Fikha Raihani Filipus Gianus Sutanto Giri Rasyidpradana Ganda Hafidz, Achmad Handian Purwawangsa Hendra Prasetia Henky Muljana Herlan Darmawan Hidayat, Febrian R Hideaki Yasuhara Hideaki Yasuhara Hideaki Yasuhara Hideaki Yasuhara Hudaya, Aang Husin Alatas Hutapea, Jose T I Wayan Wirya Aristyana IBNUL QAYIM Imam Suyanto IPB, BPKB Irgie Yudhistira irwan meilano Irzaman, Irzaman ISKANDAR ZULKARNAEN SIREGAR Julianto, Baskoro Tri Khairunnisa, Zayyaan Nabiila Khayyira, Avrill Khoirunisa, Hana Khoirunnisa, Hana Kosasih, Akhmad Lamuse, Maulina Larasaty Layla Alifani Ekrep Loebis, Akbar Renaldi Lofianda, Luthfi Lukvy, Wisely Luthfi Lofianda Maria Evita Maulasih, Resti Meti Ekayani Mitra Djamal Moch Ridwan Widiansyah Mochammad Izzudin Ma’mun Mochammad Zhafran Ichsan Maharama Moh Yasin Mohammad Hamdun Muhamad Raffi Rahman Muhammad Adhiragil Kandyas Muhammad Fauzan Muhammad fauzan Munawar, Muhammad A I Murdiono, Jatmiko N Annisa, Chika Naoki Kinoshita Naoki Kinoshita Naoki Kinoshita Natasyarini, Nanda Purwita Nina Siti Aminah Nofriadi Nurul Chairunnisa Nyoto Santoso Oktafiani, Pradyta Galuh Oktafiani, Pradyta Galuh Oktaviani, Tetra Praditya, Meindika R Prawira, Gilang Indracakti Purwo Mahardi Putri Zafira, Aura Putri, Risky Sherly Putri, Wirdatun Nafiah Putri, Zenia Dwi Rahman, Muhamad Raffi Rahmawan, Rama Zaky Rai Sita Ramadhan, Fathur Ramadhanis, Zainab Ramadhanis, Zainab Dwi Regina Aprilia Zulfikar Retna Apsari Rhini Wulan Dary Rifnadhi, Bayu RIKA RAFFIUDIN Rina Mardiana Riska Aulia Putri Risky Sherly Putri Risky Sherly Putri Risma Amelia Rizki Amelia Rosyadah, Rani Rukmana, Adi Sari, Windi Mayang Satyanto Krido Saptomo Shahilla Larasaty Slamet, Alim S Slamet, Alim Setiawan Suryanto, Wiwit Sutoyo Sutoyo Sutoyo Sutoyo Syamsul Arifin Syifa Aulia Tri Sudibyo Triyogo Aleksandria Umam, Faqih Nadiya Utami, Anisa D Utami, Anisa Dwi Utami, Annisa Dwi Wahyu Srigutomo Wahyudi Wahyudi Wigo Ardhana WINDRA PRIAWANDIPUTRA, WINDRA Yasminna Dhiya Ulhaq Yasuhara, Hideaki Yudi Chadirin Yuli Suharnoto Zaenal Abidin Zalfa Maulida Ihsani