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High Early Strength Portland Cement

A Portland cement containing a high content of alite C3S to give rapid hardening and setting properties.

Properties

High Early Strength Portland Cement only requires 3 days to show the strength that Ordinary Portland Cement shows in 7 days.

Applications

High Early Strength Portland Cement is particularly suitable for works where rapid setting and rapid hardening properties are beneficial, for example, for urgent works being carried out in cold weather to keep schedules.

Testing result (example)

Item High Early Strength Portland Cement JIS * Standards
(JIS R 5210)
Density (g/cm3) 3.14 -
Specific Surface Area (cm2/g) 4650 More than 3300
Setting Initial Set h-min
Final Setting h-min
1-40
2-40
More than 45min
Less than 10h
Soundness (Pat Test) Qualified Qualified
Compressive Strength (N/mm2) 1d
3d
7d
28d
30.2
47.6
57.5
67.4
More than 10.0
More than 20.0
More than 32.5
More than 47.5
Chemical Composition (%) Magnesium oxide
Sulfur trioxide
Ignition loss
Total alkali
Chloride ion
1.55
3.12
1.16
0.42
0.006
Less than 5.0
Less than 3.5
Less than 5.0
Less than 0.75
Less than 0.02

* : JIS: Japanese Industrial Standards
Note : If High Early Strength Portland Cement is used for soil improvement, elution tests should be conducted with soil to be used in advance.

Nanchiku bridge
Bridge beam

Availability

Bulk
Flexible container
25Kg bag

Our High Early Strength Portland Cement is available in bulk, flexible containers and 25 kg bags.
Note : Availability of products and packing types varies from region to region. Please contact your nearest branch office for further information.

Safe Application Guide for Flexible Containers

When using flexible containers, please refer to the diagram and warnings shown in this Safe Application Guide and use them with full care.


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