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ปูนซีเมนต์ ปอร์ตแลนด์
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*
* adhesion cohesion
*
* 5 1. (CaO)2. (SiO2)3. (Al2O3)4 (FeO2 , Fe2O3)5. (CaSO4)
* (CaO) (limestone) (chalk) (marl) (SiO2) (Al2O3) (shale) (slate) (clay) (FeO2 , Fe2O3) (laterite) (CaSO4) (CaSO4)
*
3 1. (Preparing of Raw Materials)2. (Calcining)3. (Cement Mill)
* 2 1. (Wet Process)2. (Dry Process)
* (Wet Process) (Marl) (Clay)
() (Wet Process) (WashMill) (Slurry Mill) (Slurry) (Silo) (Slurry Basin) (Rotary Kiln)
*() (WetProcess) (Gypsum) (Cement Mill) (Cement Silo)
*
(Dry Process)
(Limestone) (Crusher) (Storage Yard) (Raw Mill)
(Raw Mill) (Raw Meal)
() (Dry Process)
*
() (Dry Process)
(Raw Meal Homogenizing Silo) (Rotary Kiln) (Preheater) 1200-1400 (Clinker)
*
() (DryProcess)
(Raw Meal Homogenizing Silo) (Rotary Kiln) (Preheater) 1200 -1400 (Clinker)
() (DryProcess)
(Crusher) (Raw Meal Homogenizing Silo)
(Rotary Kiln)
* (Major Compounds of Portland Cement)
(Tricalcium Silicate)3Ca.SiO2C3S (Dicalcium Silicate)2Ca.SiO2C2S
(Tricalcium Aluminate)3CaO.Al2O3C3A
4CaO. Al2O3.Fe2O3C4AF
*1. 2. 3. 4.
*
C3SC2SC3AC4AF
1. 2. 3. 4.
*
CaO-< 3.0%MgO0.1 - 5.5
* (Hydration of Cement)
* (Hydration of Cement) (C3S,C2S) Calcium Silicate Hydrate (CSH) Ca(OH)2 2(3CaO.SiO2) + 6H2O 3CaO.2SiO2.2H2O + 3Ca(OH)2 + Heat 2C3S + 6H2O C3S2H + 3 Ca(OH)2 (CSH) (gel)
* (Hydration of Cement) 3 Ca(OH)2 pH 12.5 (C3A) 3CaO.Al2O2 + 6H2O 3CaO.Al2O2.H2O C3A + 6H2O 3C3AH6
* (Hydration of Cement) (CAH) (C4AF) C3S C2S 4CaO.Al2O2.Fe2O2 + CaSO2.2H2O + Ca(OH)2 3CaO(Al2O3Fe2).3CaSO2
5 1 2 3
() 5 4
5
(Ordinary Portland Cement)
(High Early Strength Portland Cement)
(Sulphate Resistance Portland Cement)
1.4 (Oil Well Cement) : API Specification 10 A (API = American Petroleum Institute) :
(Oil Well Cement)
: .80:
1.5 (Mixed Cement)
(Mixed Cement)
2. (WhiteCement)
2.1 (White Portland Cement) : .133-2518 :
3. (Dry Mortar)
3.1 (Masonry Mortar): . 598-2528:
3.1 (Masonry Mortar)
3.2 (Plastering Mortar): .1776-2542
3.2.1 (General Plaster Mortar)
3.2.4 (Skim Coat) ( . )
3.3 (Floor Screed Mortar):
3.4 (Repair Mortar):
4. (Tile Adhesive)
4.1 (Tile Adhesive for Ceramic Tiles) : :
:: (Efflorescence)
4.2 (Tile Adhesive for Marble, Granite and Large Ceramic Tiles)
4.3 (Tile Adhesive for Application Over Existing Tiles) : 2 :
4.4 (Tile Grout) :
5110110210
*