Lab Services: Rock testing

Lab Services: Rock testing

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Test Method Title

Total Hardness

Reference Number

ISRM & Tarkoy

Material

Rock

Test Property

Hardness

Description of Test

The Total Hardness test was developed to make reliable predictions of TBM performance. The Total Hardness is a composite index incorporating both a measure of rock hardnes and rock abrasivity. Total Hardness is calculated from the resulds of a Schmidt Hammer Hardness and a Modified Taber Abrasion Hardness.

Preferred Test Sample Size

Rock core specimens

Number of Test Specimens

1

Test Specimen Size

A minimum of 6 in of core,; 8 in of core preferred

Keywords

total, hardness

For more information, contact GeoTesting Express:



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770.645.6575


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224.676.1371


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212.566.6630



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