Читать книгу Monument Future - Siegfried Siegesmund - Страница 371

Two thin sections of M1, M2 and M3 were observed under a polarisation microscope Leica DM 4500 P, equipped with a digital FireWire Camera Leica DFC 290 HD that worked with the Leica application suite software LAS 4.

Linear microcrack density (LMD) was calculated as the number of microcracks per millimetre. It was found for the first 5 mm from the surface to the inside of another thin section (M4) by counting the number of microcracks intersecting a line of 5 mm.