Keywords: Granite, Salty Solution, Slake Durability, Slaking Fluid, Weathering
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Date
2022-10-06
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Abstract
The slake durability (SD) of a rock is a
vital engineering property relevant to its evaluation
and estimation of its degradability due to mechanical and chemical breakdown. This study assesses the
infuence of pH of slaking fuid and diferent acidic
solutions on slake durability of granitic rocks (fnegrained and porphyritic granite) by carrying out slake
durability test (SDT) in acidic and basic conditions or
environment. Petrographic analysis and basic laboratory tests such as porosity, water absorption capacity,
density, and point load test, Schmidt rebound hammer
were performed on the granitic rocks. The SDT was
carried out in accordance with the standard procedure
in distilled water and in diferent slaking fuids prepared by adding suitable amount of H2SO4 and HNO3
(representing acidic solutions) and NaOH (representing alkaline solutions) to distilled water. The SD of
the granitic rocks was evaluated up to 8 cycles in
acidic and basic solutions with pH ranging from 2 to
12. The slake durability index (SDI) of the granitic
rocks range from very high to extremely high under
the diferent pH and two acidic solutions