Characteristics of Concrete With Red Sand Mixture 80 Mesh Grain Size After Combustion

Harahap, Mukti Hamjah and Ritonga, Winsyahputra and Adelia, Nova (2018) Characteristics of Concrete With Red Sand Mixture 80 Mesh Grain Size After Combustion. INPAFI (Inovasi Pembelajaran Fisika), 6 (2). pp. 1-5. ISSN 2337-4624 (Cetak); 2549-8258 (Online)

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Abstract

Research has been done on the Characteristics of Concrete with a Mix of Red Sand Grain Size 80 Mesh Post-burning. This study aims to determine the characteristics of concrete with a mixture of red sand grain size 80 Mesh Post-burning on the compressive strength, porosity and structure of the concrete. The test object is a cube of 15 cm x 15 cm x 15 cm with concrete quality K-225. In this study, variations in the composition of 80 mesh size red sand were made of 0%, 2%, 3% and 4%. After the concrete is 24 hours old, the mold is opened and given a sample code and treated in an immersion water bath. After going through an immersion period of 28 days, the concrete was burned in an oven with temperature variations of 400℃, 550℃, 700℃ and 850℃ and tested. The test methods used are compressive strength, porosity and Scanning Electron Microscope Energy Dispersive X-Ray (SEM-EDX). From the test results obtained the maximum average compressive strength obtained in concrete with a mixture of red sand of 4% with a temperature of 550℃. From the results of the porosity test, there was a decrease in the concrete with the addition of red sand by 4%. From the results of the SEM test, the concrete structure with a mixture of red sand has fewer and smaller cavities. From the results of the EDX test on concrete with a mixture of red sand, Calcium (Ca) and Stibium (Sb) elements have increased intensity when compared to normal concrete. From the XRD test results obtained elements - elements SiO2 (Silicon Oxide), Ca(OH)2 (Calcium Hydroxide) and CaO3 (Calcite) with the highest intensity is SiO2.

Item Type: Article
Keywords: Red Sand; Post Burn; Porosity; Compressive Strength; SEM- EDX
Subjects: Q Science > QC Physics
Q Science > QC Physics > QC251 Heat
Q Science > QC Physics > QC811 Geomagnetism
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam
Depositing User: Mrs Catur Dedek Khadijah
Date Deposited: 09 Jun 2023 06:13
Last Modified: 14 Jun 2023 08:07
URI: https://digilib.unimed.ac.id/id/eprint/52578

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