Geoscience Reference
In-Depth Information
328
329
328
Proprietary mortar for setting fastenings,
exhibiting abundant unhydrated Portland cement
grains enclosed by epoxy resin. Fine aggregate
particles are shown white; PPT, ×150.
329
Same view as
328
in cross-polarized light. The
epoxy resin in the matrix is isotropic (black), the
unhydrated cement grains appear bright, and quartz fine
aggregate particles are shown white/grey; XPT, ×150.
330
331
330
Proprietary grey-coloured cementitious tile
adhesive, showing uncarbonated Portland cement
binder (brown) with particles of calcite dust filler (light
brown). An unhydrated cement grain is seen centre
right; XPT, ×300.
331
Brown-coloured Portland cement and calcium
aluminate cement tile adhesive. Unhydrated/partially
hydrated calcium aluminate cement particles are
frequently seen (black/red) and an unhydrated
Portland cement grain is seen in the centre of view.
Quartz fine aggregate is shown white; PPT, ×300.
332
332
Same view as
331
in cross-polarized light.
Uncarbonated cement matrix appears dark brown and
particles of calcite dust filler appear light brown.
Quartz fine aggregate particles are shown white; XPT,
×300.
