Design Experiment for Leveraging Material Value Coal Ash as Material Mixture of Paving Block

Harris Setyo Fernanto, Djoko Sihono Gabriel

Research output: Contribution to journalConference articlepeer-review

Abstract

The coal-fired thermal power plant is the main source of coal ash production. Coal ash collected at the bottom of the furnace (boiler) is called coal bottom ash (CBA) and fly ash remaining combustion called coal fly ash (CFA). In Indonesia, the utilization of bottom ash and fly ash generally is still limited to landfill material due to the value of the material too low. The objective of this research is to leverage the value of the utilization of bottom ash and fly ash materials as a mixer of construction industry products. Design of Experiment (DoE) was conducted on paving block product using various experimental factors such as composition of sand, cement, bottom ash, fly ash, and curing period of product. This Design of Experiment (DoE) applied orthogonal array to finding the best mixed compositions that affect the quality of the end result. After it, the proof was performed with a compressive strength test and water absorption test to meet the standard requirements. Testing compressive strength of paving block was done at 7 days, 14 days and 28 days to get the best result.

Original languageEnglish
Article number02013
JournalMATEC Web of Conferences
Volume206
DOIs
Publication statusPublished - 19 Sep 2018
Event3rd International Conference on Civil Engineering and Materials Science, ICCEMS 2018 - Chengdu, China
Duration: 13 Apr 201815 Apr 2018

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