PORTLAND CEMENT - Materials for Civil and Construction Engineers - page 215

T ABLE 6.4 Standard Properties of Portland Cement (ASTM C150) (Copyright ASTM, reprinted with permission)

Cement Type I IA II IIA III IIIA IV V

Air content of mortar A , volume %
max.

12 22 12 22 12 22 12 12

min. — 16 — 16 — 16 — —

Fineness B , specific surface, m 2 /kg
(alternative methods)
Turbidimeter test, min. 160 160 160 160 — — 160 160

Air permeability test, min. 280 280 280 280 — — 280 280

Autoclave expansion, max., % 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80

Minimum compressive strength, psi (MPa) C
1 day — — — — 1800 1450 — —

— — — — (12.4) (10.0) — —

3 days 1800 1450 1500 1200 3500 2800 — 1200

(12.4) (15.5) (10.3) (8.3) (24.1) (19.3) — (8.3)

1000 D 800 D

(6.9) D (5.5) D

7 days 2800 2250 2500 2000 — — 1000 2200

(19.3) (15.5) (17.2) (13.8) — — (6.9) (15.2)

1700 D 1350 D

(11.7) D (9.3) D

28 days — — — — — — 2500 3000

— — — — — — (17.2) (20.7)

Time of setting (alternative methods): E
Gillmore test:
Initial set, minutes, not less than

60 60 60 60 60 60 60 60

Final set, minutes, not more than 600 600 600 600 600 600 600 600

Vicat test:
Initial set, minutes, not less than 45 45 45 45 45 45 45 45

Initial set, minutes, not more than 375 375 375 375 375 375 375 375

A Compliance with the requirements of this specification does not necessarily ensure that the desired air content will be obtained in concrete.
B Either of the two alternative fineness methods may be used at the option of the testing laboratory. However, when the sample fails to meet the requirements of the air-
permeability test, the turbidimeter test shall be used and the requirements in this table for the turbidimetric method shall govern.
C The strength at any specified test age shall be not less than that attained at any previous specified test age.
D When the optional heat of hydration or the chemical limit on the sum of the tricalcium silicate and tricalcium aluminate is specified.