| Requirements |
นวก. 80-2550 |
ตราราชสีห์เขียว |
| PHYSICAL REQUIREMENTS |
|
|
| FINENESS : SPECIFIC SURFACE BY AIR PERMEABILITY TEST |
|
|
| Average Value cm2 per g. Min |
3200 |
4400 |
| SOUNDNESS : AUTOCLAVE EXPANSION Percent Max. |
0.80 |
0.10 |
| TIME OF SETTING : VICAT TEST |
|
|
| Initial Set Minute, not Less than |
45 |
110 |
| Final Set Minute, not more Than |
- |
240 |
| AIR CONTENT OF MORTAR |
|
|
Volume Percent Max |
12.0 |
8 |
| COMPRESSIVE STRENGTH OF MORTAR MPa |
|
|
| 1 Day in Moist Air. 2 Days in Water Min. |
6.9 (70.0) |
10.8(110) |
| 1 Day in Moist Air. 6 Days in Water Min. |
11.8 (120.0) |
117.7(180) |
| FALSF SET |
|
|
| Final Penetration. Percent Min. |
50 |
85 |
