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Sari, Endah Murtiana
Universitas Sains Indonesia
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Journal : engineering science letter

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Analysis of the Effect of Damdex Addition to Concrete Mixture on Compressive Strength Endah Murtiana Sari; Probokusumo; Alfiya Rokhmah; Muhamad Dzaky Ashidqi; Rahmat; Thomas Junaedi
Engineering Science Letter Vol. 4 No. 03 (2025): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.001420

Abstract

This study aims to determine the compressive strength and modulus of elasticity of concrete with the addition of Damdex variables to obtain the best composition. This research method is classified as quantitative research conducted at PT. Fresh Beton Indonesia Batching Plan BSD. In this study, research was conducted using two different concrete mixtures, namely 1 Pc: 2 S: 3 Gr and 1 Pc: 3 S: 2 Gr, each of which was supplemented with Damdex at concentrations of 0.0%, 0.2%, 0.4%, and 0.6%. According to the study's results, the highest compressive strength and modulus of elasticity were achieved in a concrete mixture of 1 Pc: 2 S: 3 Gr, with a variable addition of Damdex at 0.2%, resulting in a compressive strength of Fc 15.11 MPa and a modulus of elasticity of 18975.061 MPa. Meanwhile, the lowest compressive strength and modulus of elasticity results were obtained in the concrete mixture of 1 Pc: 2 S: 3 Gr with the variable addition of Damdex 0.6%, with a compressive strength of Fc 12.90 MPa and a modulus of elasticity of 17049.89 MPa. In the concrete mixture of 1 Pc: 3 S: 2 Gr, the compressive strength and modulus of elasticity were smaller compared to the concrete mixture of 1 Pc: 2 S: 3 Gr, with the highest results in the variable addition of Damdex 0.2%, with a compressive strength of Fc 9.89 MPa and a modulus of elasticity of 13846.477 MPa. Compressive strength and elastic modulus were measured at 28 days in accordance with SNI 1974:1990/2847 procedures. Among the tested mixtures, the 0.20% Damdex addition achieved the highest average compressive strength and elastic modulus. Within the tested conditions, 0.20% Damdex provided the best average performance; however, further work with larger samples and additional durability metrics is needed to confirm this trend.
Co-Authors Achmad Sutowo Agus Gendroyono Agus Taufik Mulyono Agus Taufik Mulyono Agustinus Purna Irawan Al Fath, Ade Achmad Al Ichlas Imran Alfiya Rokhmah Alfiya Rokhmah Ali Muhammad Alya Khansa, Khadeeja Angge Firizkiansah Anggi Herdian Asep Saepullah Dian Setiawan Dian Setiawan Dinda Nur Annisa Dohim, Mas’ud Dwi Wahyu Prasetyo Dyah Erny Herwindiati Dyah Erny Herwindiati Dyah Erny Herwindiati Etanto Heiliano Wijayanto Fardiansyah Maula Fitriyana, Deni Fajar Handayani, Sri Henny Pratiwi Adi Herwindiaty, Dyah Erny Ince Suil Febryan Maula Januar Parlaungan Siregar Khadijah, Raisa La Ode Mbunai Leksmono S. Putranto Leksmono S. Putranto Leksmono Suryo Putranto Lina Lina Lina Lina Lina Lina Mas’ud Dohim Maulida, Nelis Mochamad Agung Wibowo Mohamad, Dadang Mohamed Reza Zalani Muhamad Dzaky Ashidqi Muhamad Dzaky Ashidqi Muhammad Ikhsanudin Mustafa Nahdi Najid Najid Najid, Najid Najla Manggala, Kalyca Naniek Widayati Naylendra Ken Andary, Daiva Novi Hidayat Oei Fuk Jin Oei Fuk Jin Oie Fuk jin Prayudi Prayudi Probokusumo Probokusumo Probokusumo Probokusumo Probokusumo Probokusumo Purwanto Purwanto Purwanto Purwanto S.K Purwanto S.K Rahmat Rahmat Rifki Wida Sarandi Rifo Nur Laksana Ririn Mulyani Rismawati Rismawati Rismawati Rismawati Rismawati Rizal Zainuddin Tamin S.K, Purwanto Setiawan, Dian Silviana Windasari Situ Hamidah Nurhikmah Slamet Imam Wahyudi Sutikno Sutikno Sutikno Sutikno Tezara Cionita Tezara Cionita Thohirin, Antho Thomas Junaedi Thomas Junaedi Tiara Sarasevika Ujang Dudi Januar Wibowo, Mochamad Agung Wibowo, Mohamad Agung Yamani Yasmin