Civil Engineering and Architecture Vol. 12(2), pp. 1180 - 1189
DOI: 10.13189/cea.2024.120236
Reprint (PDF) (716Kb)

Lava Stone Waste Extract as a Substitute for Cement in the Mixture Concrete to Maintain Environmental Sustainability

I Made Sastra Wibawa ^1,*, Shinta Enggar Maharani ^2
1 Civil Engineering Study Program, Faculty of Engineering, Universitas Mahasaraswati Denpasar, Indonesia
² Environmental Engineering Study Program, Faculty of Engineering, Universitas Mahasaraswati Denpasar, Indonesia

ABSTRACT

Concrete is used as a construction material causing the excavation of concrete mixture materials available in nature so that its existence becomes depleted. It takes effort to find substitute materials but still maintain the quality of concrete. Lava stone waste that disturbs environmental sustainability, can be used to replace cement in concrete. The purpose of this study is to determine the percentage of lava stone waste as a substitute for cement so that compressive strength is obtained in accordance with the plan and to determine its effect on environmental sustainability after lava stone waste is used as a concrete mixture. The study was conducted at the Laboratory of the Faculty of Engineering Universitas Mahasaraswati Denpasar, by making cylindrical test objects measuring 15 cm in diameter and 30 cm high. The replacement of lava waste is made in 6 categories P0, P1, P2, P3, P4, P5 with each category of 8 test objects, where compressive strength tests are carried out at the age of 28 Days and 90 Days with category P0 as a control without being replaced with lava waste. The results showed an increase in the compressive strength of concrete in the P1 and P2 categories, a decrease that still ranged from the compressive strength of the plan in the P3 category, and a decrease below the compressive strength of the plan in the P4 and P5 categories. The conclusion of this study is that lava stone waste extract can be used as a substitute for some cement.

KEYWORDS
Lava Stone Waste, Cement, Concrete Compressive Strength, Environmental Sustainability

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] I Made Sastra Wibawa , Shinta Enggar Maharani , "Lava Stone Waste Extract as a Substitute for Cement in the Mixture Concrete to Maintain Environmental Sustainability," Civil Engineering and Architecture, Vol. 12, No. 2, pp. 1180 - 1189, 2024. DOI: 10.13189/cea.2024.120236.

(b). APA Format:
I Made Sastra Wibawa , Shinta Enggar Maharani (2024). Lava Stone Waste Extract as a Substitute for Cement in the Mixture Concrete to Maintain Environmental Sustainability. Civil Engineering and Architecture, 12(2), 1180 - 1189. DOI: 10.13189/cea.2024.120236.