3. Place one drop of distilled water by ihe cement (gypsum plaster).
4. Place the covcr slip (covcr glass) at a 43 degree ćingk (apprr>xiniui:c]y)_ with one edge louehing ihe waLcr drop, and !et go.
5. Wipe olTlhe excess o i' walor from inicroscopic slide with a paper towel or biot ling
paper.
Vuu will to £jł>$crvD 6 specimens with transmilted lighl mkroscope:
1. Cement iii irrmiersion oil (400x)
Gvpsum plaster in immersion oil (40(JxJ
3. Gypsum plaster in water after 3 minutÄ™ (400x)
4. Cement in wat ci after 30 minutÄ™ (4U0x)
5. Gypsum plasler in waler a li er 30 minule (4(K)x) d, Cement in water after scvcral days (400x)
Cement in waLcr after scvera] days (40Qx")
Ca(Ol I):
____porH;:indite
Part 2.
You will ob.$crvc some sptcimtns of different materia]* w ith reflectcd light microscope:
1 - Cel kil ar eonerete (20x)
2 - Cement mortar (20x)
3 Ordinary conureLe wiLh gravd aggregale or erushed słone a gg rogate (20x)
4 • CotintKU) briek (2Q\)
3 - Clinkor briek (2tko
d - Aeidproof briek f?.0x)
7 - Ughtweight concrete (20x)