Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Proceeding of World Conference
Agung Sumarno
LIPI
Economics, Econometrics & Finance Education Engineering Mathematics Medicine & Pharmacology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Experimental Study Of Ready Mix Wastewater Utilization For New Concrete Mixtures Agung Sumarno; Aditya Hendric Nur Prasetyo
Journal of World Conference (JWC) Vol. 3 No. 4 (2021): July 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The use of waste water that is still in accordance with the standards of SNI 06-6989 and APHA 3120B can be reused as a concrete mixture material in the concrete production process at the Batching Plant, especially for low- quality concrete. The purpose of this study was to determine the effect of the use of wastewater with variations of 0%, 25%, 50%, 75% and 100% on the quality or quality of concrete. Based on the results of the study, it was found that at the beginning of the concrete pavement period, the chemical content contained in wastewater from the concrete production process will interfere with the hydration process so that the compressive strength of concrete at the age of 7 days tends to decrease. However, after the age of 28 days, the dissolved solids in the wastewater from the concrete production process fill the pores in the concrete so that the compressive strength of the resulting concrete becomes higher. The value of the use of wastewater to the optimal composition of the concrete mix design is 75% of the total volume of water required. This is based on the results of the compressive strength test which reached 93.37% of normal concrete at the age of 7 days, 100.59% of normal concrete at the age of 14 days and 105.94% at the age of 28 days with the slump and flow table test results of 16cm and 38cm.
Effect of Using Roof Clay and Charcoal Ash as a Substitution of Coarse Aggregate and Cement in a Concrete Compressive Strength Agung Sumarno; Dyah Robbiana Zulfa; Syafwandi; Agyanata Tua Munthe
Journal of World Conference (JWC) Vol. 4 No. 4 (2022): July 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Infrastructure and technology development in the construction sector are rapidly evolving, particularly in Indonesia. Because practically every construction building is built of concrete, this supports the increased use of natural materials as raw materials for creating concrete to keep up with the world's rapid development. As a result, new technologies are required to limit the use of substitute elements in concrete mixtures while also minimizing environmental damage. The researchers used clay tile waste and charcoal ash as a substitute for coarse aggregate and cement in the concrete mix in this final project. This study uses an experimental approach with a total of 36 samples of cylindrical samples with a size of 10cm x 20cm, a substitution variation of 20%, 25% of total coarse aggregate, and charcoal ash 5% of total cement weight. On days 3, 7, 14, and 28, the test object will be slumped to see how workable it is and how strong it is. According to the findings, the higher the percentage in the concrete mixture, the lower the slump value, and the compressive strength test results. The highest is the 25% GTL substitution variation. At the age of 28, 5% AA equals 27.3 MPa. The results of testing the compressive strength of concrete with the substitution of tile waste reached the quality of K-225.
Co-Authors Aditya Hendric Nur Prasetyo Dyah Robbiana Zulfa Munthe, Agyanata Tua Syafwandi