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Edwin K Sijabat
Teknologi Pengolahan Pulp Dan Kertas - Institut Teknologi Sains Bandung
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Mechanical and Physical Properties of Cement Mortar with Recausticizing Solid Byproduct Sijabat, Edwin Kristianto; Harmaji, Andrie; Hendriansyah, Hendriansyah
Semesta Teknika Vol. 27 No. 2 (2024): NOVEMBER
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i2.15429

Abstract

The Kraft process is a method used to make paper pulp. This method produces cooking residue that can be recycled again. The recausticizing process produces large amounts of by-products.This research utilizes solid waste from causticizing from the pulp industry as a partial substitute for Portland cement for mortar raw material to obtain a material with good mechanical properties. The solid waste was pulverized, then characterization of Loss on Ignition (LOI), Inductively Coupled Plasma (ICP), Titration, and Total Titrable Alkali was carried out. The percentage of solid waste resulting from recausticizing as a substitute for cement is 0-100%, with a water-cement ratio (w/c) of 0.3. The mixed material is then printed into a 50x50x50mm mold followed by drying using the moist curing method. The hardened samples were tested for Density, Porosity, Water Absorption, and Compressive Strength. Mortar with partial cement replacement with 20-100% solid waste recousticizing produces a compressive strength of 1.3-22.6 MPa. The resulting water absorption ranges from 14.59-31.35%.
Co-Authors Ajeng Nimatul Hidayah Andrie Harmaji Basuki Tri Prijadi Harmaji, Andrie Hendriansyah, Hendriansyah Iqbal Novanka Ristiawan Marjanu Priambodo Muhammad Ridho Rafida Khoirani Sriwedari, Daisy A Surya Adelia Sakti Tetania Ade Putri Tri Prijadi Basuki