chemia mikroskopoweºdania spoiw0004

chemia mikroskopoweºdania spoiw0004



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 sÅ‚one a gg rogate (20x)

4    â€¢ CotintKU) briek (2Q\)

3 - Clinkor briek (2tko

d - Aeidproof briek f?.0x)

7 - Ughtweight concrete (20x)


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