The Chemical and Mineral Composition Effect on Rock Mass Strength in Kaliwadas Limestone Hills, Karangsambung, Kebumen, Central Java

Indonesia Malaysia Research Consortium Seminar 2018

Dahani, W.^1 ; Marwanza, I.^1 ; Susilo, A.^1 ; Pramesti, F.A.^2 ; Kurniawati, R.^2

Department of Mining Engineering, Trisakti University, Jakarta, Indonesia^1

Department of Chemistry, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia^2

关键词: Acid solutions;    Acid waters;    Adsorbed water;    Chemical compositions;    Mineral composition;    Rock composition;    Rock mass strength;    Rock strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/588/1/012036/pdf
DOI  :  10.1088/1757-899X/588/1/012036

来源: IOP

【 摘 要 】

The Kaliwadas Hills, Karangsambung, Kebumen, Central Java are composed of limestone lithology, which has been deformed in the form of cracks. The chemical and mineral rock composition is related to the adsorbed water content and rock strength. This paper will analyze the correlation between the chemical composition of rocks and adsorbed water content with rock strength of Kaliwadas Hills. Rock sample was soak in an acid solution that represent rainwater. It was known that if the crack exposed to rainwater (acid water) continually, it will change the chemical composition of rocks and water content adsorbed. It is resulting the decrease of rock mass strength that can lead to aftershocks landslide.