Cement is also known as a net slurry hardener.?It is a hardened cement paste, called cement, written cement in English, sometimes written caement, which is a non-nonhomogeneous body consisting of gelinite, a core of unhydrated cement particles, pores, etc.

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01? mounting

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Due to the porosity in the cement, use?TJ2562 for vacuum mounting, the resin is mixed proportionally in the Theta Vacuum cold mounting?machine and the specimen is placed in the ThetaMount pressure cold mounting?machine and cured under pressure for about 12h.；

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Equipment

Theta Vacuum cold?mounting?machine

ThetaMount pressure?cold?mounting?machine

Consumables

TJ2562

Parameter

0.2MPa，12h

02? Grinding

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?Grind the sample with Alpha-600 automatic grinder&polisher，abrasive?paper?P800→P2500；

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Equipment

Alpha-600 automatic?grinder&polisher

Consumables

Abrasive?paper：P800；P1200；P2000；P2500

Parameter

Pressure：20N，speed：130rpm，time：2min

（P2000&P2500?time：5min）

03?Polishing

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Polish?the?specimen?with?Alpha-600 automatic grinder&polisher, polish?it?with?SC polishing cloth and?2μm water-free based polycrystalline diamond suspension.

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Equipment

Alpha-600 automatic?grinder&polisher

Consumables

SC?polishing?cloth，2μm?water-free based polycrystalline diamond suspension

Parameter

Pressure：?20N，Speed：150rpm，Time: 5~10min

04? Observation

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Equipment

MN 60 Series metallographic?microscope

Parameter

50×→500×

09? Analysis

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Cement is porous, for this reason vacuum cold mounting?and?resin is applied to fill the pores. The fine grinding should be extended appropriately to remove the fractured layer produced during the rough?grinding. Cement is sensitive to water, so it must be polished with a non-water-based polishing suspension?when polishing.