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Results of Cerchar, LCPC, and equivalent quartz content from rolling indentation abrasion testing in plutonic rock
https://orcid.org/0000-0002-0024-6161
Abstract The rolling indentation abrasion test (RIAT) is a recently developed method for measuring rock abrasivity. In this study, RIAT tests were performed on 17 plutonic rock samples and the weight lost by the mini-disc cutter (mg) after testing (RIATa), the mean value of 10 evenly distributed measurements of the cutter penetration depth into the rock in 1/100 mm (RIATi), abrasion-penetration rate (APR), and penetration-time rate (PTR) values were determined for the samples. The Cerchar abrasivity index (CAI), LCPC abrasivity index (LAC), and equivalent quartz content (EQC%) values were determined for the samples. The relationship of APR and PTR to CAI, LAC, and EQC% was investigated using regression analysis, and the Fisher test and empirical equations between APR-EQC%, PTR-EQC%, APR-PTR, PTR-CAI, APR-LAC, and PTR-LAC are proposed. The proposed equations were validated on three control samples and were found to be valid for plutonic rock. The RIAT test was used at different rotations speeds to determine their effect on the samples, and an optimal rotation speed has been proposed for each sample using the APR parameter. Comparison of the current results and those of previous research on sandstone showed that the trends of PTR-EQC%, APR-PTR, and PTR-CAI were similar. An experimental relationship has been proposed for these types of rock for APR-EQC%. For hard and highly abrasive samples, the trends for PTR-EQC%, APR-PTR, and PTR-CAI were similar for plutonic rock and sandstone, but for medium-to-high abrasivity samples, the penetration rate of plutonic rock was less than for sandstone in terms of abrasivity.
Results of Cerchar, LCPC, and equivalent quartz content from rolling indentation abrasion testing in plutonic rock
https://orcid.org/0000-0002-0024-6161
Abstract The rolling indentation abrasion test (RIAT) is a recently developed method for measuring rock abrasivity. In this study, RIAT tests were performed on 17 plutonic rock samples and the weight lost by the mini-disc cutter (mg) after testing (RIATa), the mean value of 10 evenly distributed measurements of the cutter penetration depth into the rock in 1/100 mm (RIATi), abrasion-penetration rate (APR), and penetration-time rate (PTR) values were determined for the samples. The Cerchar abrasivity index (CAI), LCPC abrasivity index (LAC), and equivalent quartz content (EQC%) values were determined for the samples. The relationship of APR and PTR to CAI, LAC, and EQC% was investigated using regression analysis, and the Fisher test and empirical equations between APR-EQC%, PTR-EQC%, APR-PTR, PTR-CAI, APR-LAC, and PTR-LAC are proposed. The proposed equations were validated on three control samples and were found to be valid for plutonic rock. The RIAT test was used at different rotations speeds to determine their effect on the samples, and an optimal rotation speed has been proposed for each sample using the APR parameter. Comparison of the current results and those of previous research on sandstone showed that the trends of PTR-EQC%, APR-PTR, and PTR-CAI were similar. An experimental relationship has been proposed for these types of rock for APR-EQC%. For hard and highly abrasive samples, the trends for PTR-EQC%, APR-PTR, and PTR-CAI were similar for plutonic rock and sandstone, but for medium-to-high abrasivity samples, the penetration rate of plutonic rock was less than for sandstone in terms of abrasivity.
Results of Cerchar, LCPC, and equivalent quartz content from rolling indentation abrasion testing in plutonic rock
https://orcid.org/0000-0002-0024-6161
Abstract The rolling indentation abrasion test (RIAT) is a recently developed method for measuring rock abrasivity. In this study, RIAT tests were performed on 17 plutonic rock samples and the weight lost by the mini-disc cutter (mg) after testing (RIATa), the mean value of 10 evenly distributed measurements of the cutter penetration depth into the rock in 1/100 mm (RIATi), abrasion-penetration rate (APR), and penetration-time rate (PTR) values were determined for the samples. The Cerchar abrasivity index (CAI), LCPC abrasivity index (LAC), and equivalent quartz content (EQC%) values were determined for the samples. The relationship of APR and PTR to CAI, LAC, and EQC% was investigated using regression analysis, and the Fisher test and empirical equations between APR-EQC%, PTR-EQC%, APR-PTR, PTR-CAI, APR-LAC, and PTR-LAC are proposed. The proposed equations were validated on three control samples and were found to be valid for plutonic rock. The RIAT test was used at different rotations speeds to determine their effect on the samples, and an optimal rotation speed has been proposed for each sample using the APR parameter. Comparison of the current results and those of previous research on sandstone showed that the trends of PTR-EQC%, APR-PTR, and PTR-CAI were similar. An experimental relationship has been proposed for these types of rock for APR-EQC%. For hard and highly abrasive samples, the trends for PTR-EQC%, APR-PTR, and PTR-CAI were similar for plutonic rock and sandstone, but for medium-to-high abrasivity samples, the penetration rate of plutonic rock was less than for sandstone in terms of abrasivity.
Results of Cerchar, LCPC, and equivalent quartz content from rolling indentation abrasion testing in plutonic rock
Moradizadeh, Masih (author) / Cheshomi, Akbar (author)
2021
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
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