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Porous Ceramics: The Role of Coffee Grounds and Rice Husk Ash in Physical and Mechanical Properties Fauzi; Evi Yufita; Afwandi Taga S; Rinaldi Romar; Musvira; Dini Rizqi Dwi Kunti Siregar; Endi Suhendi; Elin Yusibani
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 15 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v15n2.p47-67

Abstract

This research investigates the role of spent coffee grounds (SCGs) and rice husk ash (RHA) as additives in clay mixtures for the production of porous ceramics. Three sample variations were tested. The first involved mixing SCGs with clay in weight percentages of 0:100, 5:95, 10:90, 15:85 and 20:80 %wt, using particles sized between 80 and 100 mesh. In the second variation, SCGs were replaced with RHA in similar proportions. The third variation used a fixed 10%wt SCG content, combined with varying RHA percentages (0, 5, 10, 15 and 20)%wt. Physical properties (density, porosity, water absorption) and mechanical properties (compressive strength) were evaluated. The results show that increasing the proportion of organic filler significantly decreases both density and compressive strength—by up to 45% and 97%, respectively—due to the reduced clay content. Conversely, porosity and water content increase with higher filler content. Among all samples, the clay–RHA mixture exhibited the highest compressive strength. Meanwhile, the combination of SCGs with 10%RHA produced ceramics with the lowest density, indicating the most porous structure.
Co-Authors Abdi Hary Abdul Azis Abdul Muiz Achmad Ardiansyah Adila Yuansa Adilla Aditia Ramadhani Adliah Anwar6 Adriansyah, Agung Afwandi Taga S Agus Himawan Agustia Rahmi Agustinawati, Raja Amelia Ahmad Indra Harahap Ahmad Muhajir, Ahmad Aida Fitri Ainun Mardiah Alex Hidayat Alfi Syahrin, Alfi Amimah Qodari Amrullah Anang Andari, A Angeline, Epicilia Angelline Beauty Colin Annora Salsabilla Anshari, Muhammad Redha Anshori, M. A. Arifin, Muh. Luqman Asep Abdul Sofyan Aulia Dewi Gizta Axel , Christian Azzahra, Vira Bakhtiar Bernadeta M Wara Kushartanti Bonitasari Nurul Alfa Bukhari Usman Calista Charly Marlinda Christ Windreis Citrawati Jatiningrum Cut Fitri Rostina Cut Muliana Zahra Cut Taffazani Fithrian Nada Data Fitri Decyta Khairun Nisa Deni Hartanto Desi Andriyanti Br. Simamora Devi Eliana Damanik Dewi , Prastya Kusuma Diah Pertama Sari Dian Aditya Suryani Dina Handayani Dini Dini Rizqi Dwi Kunti Siregar Djamaludin Dyah Subositi Elin Yusibani Endi Suhendi Enita Dearni Purba Erick Efendi Erida Ermawati Evi Yufita Fadli Ihsan Fahruddin Faisal Abnisa Fakhrurrazi Farhan Fatchur Rohman Fatmawati Fatmawati Febriyaningrum , Dinda Nur Fendy Yulianto Gilbert Tionardy Grace Natalia Kenja Hakim Muttaqim Halvin Huang Harry Pratama Figna HARYANTO Hasnarika Helen Hendiyani, Dina Ilman Kadori intan Ismail Iye, Risman Jalil Joffin Fergio Joko Nurkamto Juliana Juliana Elisabeth Br. Sinurat Kerin Khafi Khairat, Nurul Khairi, Muhammad Dahlan Khairil Khairunnisa Khumaida , Siti Nur Kurnia, Sri Lailla Affianti Fauzi Latifa Anisa Latifah Annisa Linda Septarina, Linda M Furqon Hidayatullah M. Indra Saputra M. Nazaruddin Mahidin Mahmudin Maisarah Mardhiyah, Fadhilah Al Marhamah . Marhamah Hasibuan, Ainul Maulana Dwi Yantoro Mepa Kurniasih Michelle Lizzie Mishbah Habibillah, Gibran Mohammad 'Ulyan Mohammad Aviciena Taufiqurrahman Muchsin Muchsin Muh. Gitosaroso Muhamad Alfarizi Muhamad Basitur Rijal Muhammad Alimul Ahbar Muhammad Farhan Akmal Muhammad Ibrohim Muhammad Isa Alamsyahbana Muhammad Mahfud Muhammad Rizal Muhammad Usman Mursyidin Musvira Natasya Shofia Az-Zahra Nautika , Fara Nelud Daraajatul Aliyah Nia Komalasari Nitasari , Mayang Nora Dwi Putri, Besti Nora Fitria Novi Chandra Saputra Novita Intan Arovah Novysa Basri Nur hafidz Nur Hidayah Nuriman, Nuriman Nurlaela, Nunung Pangeran Putra Perkasa Alam Nasution Putri, Anggia Sekar Radianto, Aramiko Agus Rahma Wira Nita Rahmat Ranat Mulia Pardede Regina Maria Riky Dwihandaka Rinaldi Romar Rinanda, Dina Riska Nofianti, Farhati Riski Prastiya Rizkina, Azka Rofiq, Nur Rona Bernike Br Sinuhaji Rostina , Cut Fitri Rostina, Cut Fitri Ryan Dhika Priyatna Sahara, Masyitah As Samiun, Aspiati A. Samiun Satria, Hendy Sigit Candra Nuraziz Silvi Ariyanti SITI NURJANAH Siti Patimah sri mujiati SRI RAHAYU Suadi Zainal Sudirman Sulaiman Sundjoto Sutadi Sutadi Syahriyah, Eri Syakina Falshabilla Adisty Lubis Syalom Triyosefin Lumban Toruan Syasmita, Indah Taghfirul Azhima Yoga Siswa Tanaka , Felix Taufiqurrahman Tri Yuni Sari Sinisuka Ulydhatul Ismiyana Utami, Ranti Valencia Vanisa Meifari Victor Pattiasina Warisno, A Widayati, Neneng Widodo, Haryo Mukti Win, Sudirman Wulan Kurniawati Yahya, Wildan Albiruni Yanto, Janetty Su Yehezkiel Leonardo P Sitorus Yunata, Sintia Yunus, Syarifudin Yusrizal Yusrizal Zainal Abidin Zulaika, Nurfitri Zulfikar