Assessment of weathering processes effect on engineering properties of Alvand granitic rocks (west of Iran), based on weathering indices

Durability Assessment of Clay-Bearing Soft Rocks By Using New Decay Index

“…These observations are consistent with the results of Irfan and Dearman [25]. Water absorption index has both direct and indirect effects on most of the physical properties of clay bearing rocks and is, therefore, considered the most important clay bearing rock parameter [26][27][28]. The calculated values of water absorption of the studied rocks are reported in Table 2.…”

New weathering indices for evaluating durability and weathering characterization of crystalline rock material: A case study from NE Turkey

“…Recently, weathering indices have been used as a 88 palaeo-climatic indicators and for palaeo-environmental implications (e.g., Yang et al 2004;89 Gallagher and Sheldon 2013) and for characterising alterations associated with neotectonic 90 delineations and the subsequent implications for provenance studies (Young 2002; Osae et al 91 2006). In addition, chemical weathering indices provide input for prediction models to assess 92 the engineering behaviors of rocks (e.g., Onodera et al 1974; Irfan 1996; Tugrul and Gurpinar 93 1997; Ceryan 2008, Khanlari et al 2012) and predicting the durability and the weathering 94 state of building stones (e.g., Esaki and Jiang 1999; Korkmaz and Ceryan 2011;Yavuz 2012). 95 With the consideration of the chemical weathering processes, leaching and forming 96 weathering products, and their effects on durability of crystalline rocks, it can be said that 97 new petro-chemical indices are required to take into account petro-chemical 98 characteristics including mineralogical composition, mineral chemistry and durability 99 indicator such as the slake durability index.…”

Geotechnical comparison of weathering degree and shear wave velocity in the decomposed granite layer in Hongseong, South Korea

“…Weathering refers to the crushing and alteration of coarse minerals in the ground surface, eventually creating stable minerals under new physical and chemical environments (Antonie et al 1995;Park and Lee 1999;Khanlari et al 2012). Depending on the developmental processes and causes, weathering can be divided into physical, chemical, and biological weathering (Sun et al 2006;Jiang and Esaki 2002).…”

“…In the third stage, Al 2 O 3 , Fe 2 O 3 , and TiO 2 accumulate and at the same time, loss on ignition (LOI) rapidly increases. Chemical weathering indices evaluated in this study, which use the changes in these oxides (chemical elements), are summarized in Table 1; of these indices, VR, CIA, CWI, and LOI increase, but RR, WIP, and MWPI decrease as weathering becomes severe (Sun et al 2006;Khanlari et al 2012).…”