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Journal : Journal of the Civil Engineering Forum

The Utilization of Soybean as a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack Healing Concrete Regina Aprilia Zulfikar; Heriansyah Putra; Hideaki Yasuhara
Journal of the Civil Engineering Forum Vol. 7 No. 1 (January 2021)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.57889

Abstract

The effect of using soybean as a catalyst in the Enzyme-Mediated Calcite Precipitation (EMCP) method of crack healing concrete is discussed in this research. The existence of cracks in concrete reduces its quality, therefore, there is the need for repair efforts and one of these is through injection using the EMCP method. This technique employs the plant-derived urease enzyme to catalyze the reaction between calcium chloride (CaCl2) and urea (CH4N2O) towards precipitating calcium carbonate (CaCO3). Its effectiveness was, however, evaluated using a test tube experiment, and the optimum combination of urease, urea, and calcium chloride was selected and used as the preliminary data for the soybean added as a catalyst. Meanwhile, the concrete samples were prepared in the form of 5 cm x 10 cm cylindrical concrete and the crack was made through Universal Testing Machine (UTM) with a controlled area observed to be in the range of ± 0.2-0.3 mm. The injection solution was added to the concrete using the percolation method up to the period the height of the solution was 5 mm above the concrete surface and this was conducted several times with the effect on the concrete cracks evaluated through permeability tests which were used as one of the concrete quality parameters. Moreover, the permeability coefficient value was found to be inversely proportional to the quality and this means a smaller value of the coefficient produced better concrete quality and vice versa. The results showed the total calcite formed in the sample after the 4th injection was 18.3% of the total surface area of the concrete crack and was able to reduce the concrete permeability value by 95.43%. This, therefore, means the use of soybean in the EMCP method is considered feasible to repair concrete cracks.
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 Ismail, Chandra 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 Rivansyah, Mohamad Daffa 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 Zafira, Aura Putri Zalfa Maulida Ihsani