Open AccessThe Utilization of Lapindo Powder as a Material for High Strength Concrete
Author(s) -
As’at Pujianto,
Hakas Prayuda,
Fanny Monika,
Martyana Dwi Cahyati,
Fernanda Zulviandika
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1144/1/012011
Subject(s) - materials science , compressive strength , ultimate tensile strength , pozzolan , absorption of water , porosity , cement , water content , composite material , volume (thermodynamics) , moisture , geotechnical engineering , geology , portland cement , physics , quantum mechanics
This study discusses the utilization of Lapindo powder for pozzolan material in the manufacture of high-quality concrete. The existence of Lapindo mud is one of the disasters that destroy many residential areas. This mud is still increasing in volume without being able to be utilized by the community. In terms of its chemical properties of Lapindo mud, processed into a powder, it has no hydration properties when mixed with water, but it can harden naturally. This research has investigated the characteristics of high-quality concrete by utilizing the mud of Lapindo as additional material. The examinations are workability, compressive strength, tensile strength, moisture content, water absorption, and porosity. The specimens were made in a cylindrical shape with a 75 mm diameter with a height of 150 mm. The test results show that Lapoindo powder can be used as additional material to manufacture high-quality concrete. The composition suggested through this study is 10% of the weight of cement. The compressive strength for 10% Lapindo content is 45 MPa at 28 days.