Partial Substitution of Cement Using Fly Ash and Carbite Waste in Normal Concrete Making

DOI

10.2991/ahe.k.210205.061How to use a DOI?

Keywords

Fly Ash, Carbide Waste, Concrete Age, Concrete Compressive Strength

Abstract

Concrete is a mixture consisting of crushed stone or coral, sand, cement, water, and additives if needed. While the concrete to be designed is concrete made from a mixture of cement plus (fly ash + carbide waste), crushed stone, sand, and water. Therefore, it is necessary to make a mixture between cement with fly ash and carbide waste, the percentage of fly ash use is 75% and carbide waste is 25%. In this study, we will use a variation (fly ash + carbide waste) and cement is 0% FA + LK: 100% PC; 20% FA + LK: 80% PC; 40% FA + LK: 60% PC; 60% FA + LK: 40% PC; 80% FA + LK: 20% PC. The testing results for concrete compressive strength without fly ash and carbide waste obtained at the age of 3, 7, 14 and 28 days, the value of concrete compressive strength are 132.88 kg / cm2, 243.56 kg / cm2, 259.93 kg / cm2, 285, 19 kg / cm2, and fulfills the concrete compressive strength 275 kg / cm2 at the age of 28 days. The concrete compressive strength with 20% (FA + LK) and 80% PC material at the ages of 3, 7, 14 and 28 days, the compressive strength at 3 days is 127.29 kg / cm2, 7 days old is 190, 37 kg / cm2, 14 days old was 246.22 kg / cm2 and 28 days old was 279.26 kg / cm2. The testing results of concrete compressive strength above have met the planned concrete compressive strength, which is 275 kg / cm2 at the age of 28 days. Meanwhile 40% FA + LK: 60% PC; 60% FA + LK: 40% PC; 80% FA + LK: 20% PC, does not meet the quality requirements of K-275 concrete. Concrete mixture using 20% (FA + LK) and 80% PC is the best concrete mixture, and the compressive strength of concrete is 279.26 kg / cm2. The more the percentage use of fly ash and carbide waste into the concrete mixture, the compressive strength of the concrete will decrease.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Darma Prabudi
AU  - Kosim
AU  - Zainuddin
AU  - Raja Marpaung
PY  - 2021
DA  - 2021/02/09
TI  - Partial Substitution of Cement Using Fly Ash and Carbite Waste in Normal Concrete Making
BT  - Proceedings of the 4th Forum in Research, Science, and Technology (FIRST-T1-T2-2020)
PB  - Atlantis Press
SP  - 361
EP  - 367
SN  - 2589-4943
UR  - https://doi.org/10.2991/ahe.k.210205.061
DO  - 10.2991/ahe.k.210205.061
ID  - Prabudi2021
ER  -