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The effect of surface texture on the determination of the surface hardness of rock using the schmidt hammer
Author(s) -
Williams R. B. G.,
Robinson D. A.
Publication year - 1983
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290080311
Subject(s) - schmidt hammer , hammer , texture (cosmology) , hardness , weathering , surface (topology) , surface finish , geology , materials science , interpretation (philosophy) , mineralogy , geotechnical engineering , composite material , metallurgy , geometry , mathematics , artificial intelligence , computer science , geomorphology , compressive strength , image (mathematics) , programming language
The Schmidt hammer is employed by geomorphologists as a convenient field instrument for measuring the hardness of rock surfaces. Field trials indicate that the readings obtained are a function of not only the hardness of the surfaces but also their texture. Smooth planar surfaces give much higher readings than rough or irregular surfaces. This makes interpretation of the results particularly difficult when the hammer is used to measure the hardness of natural rock surfaces that have been roughened by weathering.