This is an ordinary portland cement produced in accordance with the Thai Industrial Standards Institute's specification for portland cement TIS 15 - 2555 Type I, and the ASTM C-150 Type I. TPI portland cement [ Red ] is suitable for construction work,concrete work requiring high compressive strength, for general concrete work such as in reinforced concrete buildings and for construction of bridges, highways, airports and for various types of prestressed concrete products.
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According to the American Standard Specification for |
Guarantee Specification |
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Silicon dioxide Aluminium oxide Ferric oxide Calcium oxide Magnesium oxide Sulfur trioxide Loss of ignition Insoluble residue Tricalcium silicate Tricalcium aluminate Total Alkalies (Na2O + 0.658 K2O) |
ASTM C114 (SiO2) (AI2O3) (Fe2O3) (CaO) (MgO) (SO3) (LOI) (IR) (C3S) (C3A) |
% % % % % % % % % % % |
- - - - max 6.0 max 3.5 max 3.0 max 0.75 - - max 0.6 |
Fineness ; Specific surface Air permeability test Soundness : Autoclave expansion Time of setting ; Vicat test; initial set final set Air content of mortar volume *False set Compressive Strength ; Mortar cubes; 1 day 3 days 7 days 28 days |
ASTM C 204 ASTM C 151 ASTM C 191 ASTM C 185 ASTM C 451 ASTM C 109 |
m2/kg % mins mins % % psi (MPa)[ksc] |
min 280 max 0.8 min 45 max 375 max 12 min 50 - min 1740 (12.0)[122] min 2760 (19.0)[194] min 4060 (28.0)[286] |
Remark : * Means Optional Requirements