The Sieved Slake Durability Test

Richardson, D.; Long, J.

doi:10.2113/gseegeosci.xxiv.2.247

Cited by 7 publications

(10 citation statements)

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“…The main problem with the slake durability index test according to various researchers (Czerewko and Cripps, 2001;Erguler and Shakoor, 2009and Richardson and Long, 1987, Moon and Beattie, 1995 is that the test is not efficient in differentiating durable from non-durable mudrocks ( Figure 2). This is mainly because of the 2 mm mesh size which may retain a large portion of slaked material even for non-durable rocks…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…To address this, ASTM 4644 -08 suggests a qualitative description of the retained material as Type I-virtually unchanged large fragments, Type II -large and small fragments, and Type III -exclusively small fragments. Other problems include the formation of mud balls (larger than 2 mm) during testing rocks with plastic clays (Richardson and Long, 1987).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Deo (1972) investigated various duration of testing from 100 to 1000 revolutions, recommending a 500 revolutions test. Richardson and Long (1987) experimented with various cycles of slaking (1 -5 cycles) for 10 minutes each with a drum rotation at 20 rpm, and showed that little degradation takes place after the second cycle and therefore more than two cycles of the slake durability index test is redundant (Hopkins and Deen,1984). Santi (1998) using Hopkins and Deen's (1984) data, however shows that the first cycle, I d1 and second cycle, I d2 have high correlation suggesting that one cycle of slake durability index is adequate to characterize durability of mudrocks.…”

Section: Previous Workmentioning

confidence: 99%

“…Andrews et al, (1980), and Erguler and Shakoor (2009) suggest sieving the slaked material retained in the drum to better characterize the degradation of a sample during the slake durability index test. Richardson and Long (1987) uses an aggregate gradation calculation method that gives a quantitative value reflecting grain size distribution. Erguler and Shakoor (2009) and Gautam and Shakoor (2013) propose the use the disintegration ratio (D R ) to describe the degree of disintegration of the material retained in the drum.…”

Section: Previous Workmentioning

confidence: 99%

“…A second parameter that is used to describe the degree of disintegration of the retained material is the sieved slake durability index, I sd2 (Richardson and Long, 1987) calculated based on "gradation modulus" after Hudson and Waller (1969). The gradation modulus (D) is a single value that describes grain size distribution.…”

Section: Dependent Variablesmentioning

confidence: 99%

See 4 more Smart Citations

Multivariate statistical approach to re-evaluate the slake durability index test (ASTM 4644–08)

Admassu

Hamdan

Gautam

2016

Engineering Geology

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Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Previous Workmentioning

confidence: 99%

Section: Previous Workmentioning

confidence: 99%

Section: Dependent Variablesmentioning

confidence: 99%

See 3 more Smart Citations

Multivariate statistical approach to re-evaluate the slake durability index test (ASTM 4644–08)

Admassu

Hamdan

Gautam

2016

Engineering Geology

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Proposal of a New Parameter for the Weathering Characterization of Carbonate Flysch-Like Rock Masses: The Potential Degradation Index (PDI)

Cano

Tomás

2016

Rock Mech Rock Eng

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The susceptibility of clay bearing rocks to weathering (erosion and/or differential degradation) is known to influence the stability of heterogeneous slopes. However, not all of these rocks show the same behaviour, as there are considerable differences in the speed and type of weathering observed. As such, it is very important to establish relationships between behaviour quantified in a laboratory environment with that observed in the field. The slake durability test is the laboratory test most commonly used to evaluate the relationship between slaking behaviour and rock durability. However, it has a number of disadvantages; it does not account for changes in shape and size in fragments retained in the 2 mm sieve, nor does its most commonly used index (Id 2) accurately reflect weathering behaviour observed in the field. The main aim of this paper is to propose a simple methodology for characterizing the weathering behaviour of carbonate lithologies that outcrop in heterogeneous rock masses (such as Flysch slopes), for use by practitioners. To this end, the Potential Degradation Index (PDI) is proposed. This is calculated using the fragment size distribution curves taken from material retained in the drum after each cycle of the slake durability test. The number of slaking cycles has also been increased to five. Through laboratory testing of 117 samples of carbonate rocks, extracted from strata in selected slopes, 6 different rock types were established based on their slaking behaviour, and corresponding to the different weathering behaviours observed in the field.

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Classification and modification of slake durability test for different types of rocks

Ersöz,

Topal

2024

Bull Eng Geol Environ

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The Sieved Slake Durability Test

Cited by 7 publications

References 0 publications

Multivariate statistical approach to re-evaluate the slake durability index test (ASTM 4644–08)

Multivariate statistical approach to re-evaluate the slake durability index test (ASTM 4644–08)

Proposal of a New Parameter for the Weathering Characterization of Carbonate Flysch-Like Rock Masses: The Potential Degradation Index (PDI)

Classification and modification of slake durability test for different types of rocks

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