%0 Journal Article
%T Simulation of sandstone degradation using large-scale slake durability index testing device
%A Chaowarin Walsri
%A Tanaphol Sriapai
%A Decho Phueakphum
%A Kittitep Fuenkajorn
%J Songklanakarin Journal of Science and Technology
%D 2012
%I Songkla University
%X Large-scale slake durability index tests have been performed on Khok Kruat (KK), Phu Kradung (PK) and Phra Wihan(PW) sandstone. A rotating drum with a diameter of 64 cm and length of 40 cm was fabricated to accommodate ten rockfragments with a nominal size of 10 cm. Both large-scale and standard-testing were performed under dry and wet conditions.The large-scale test yields rock deterioration twice greater than the small-scale test, primarily due to the greater energyimposed on the rock fragments. The weight losses under wet condition are 12%, 8%, and 3% greater than under dry condition for KK, PK, and PW sandstones, respectively. After 10 test cycles the water absorption values for PW, KK and PKsandstones are 12%, 3%, and 2%, respectively. Rock degradation under the rapid cooling-heating cycles in the laboratory isabout 18 times faster than under the field condition in the northeast of Thailand.
%K slake durability
%K weathering
%K sandstone
%K water absorption
%K degradation
%U http://rdo.psu.ac.th/sjstweb/journal/34-5/0475-3395-34-5-587-596.pdf