Los Angeles Test and Polished Stone Value of ophite in Cantabria: a petrophysical interpretation
Keywords:aggregate, Polished Stone Value, Los Angeles abrasion Test, petrography, physical properties
Crushed aggregate obtained from certain ophite outcrops in Cantabria was tested with the Los Angeles and polished stone value (PSV) procedures. Linear regression analysis was used to identify the pétrographie parameters that account for aggregate performance in these two tests. The most abundant and common minerals in the ophite were observed to condition such performance in the Los Angeles method. In PSV behaviour was determined by the existence or otherwise of a rough micro texture -the result of the existence of minerals with different hardness values-, which increases aggregate resistance to polishing action.
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