Calculator

Nominal maximum size of aggregate(mm):
(Note: Enter one of these numbers: 9.5, 12.5, 19, 25, 37.5, 50, 75, 150)

Slump(mm):
(Note: For 25 mm - 50 mm, enter 1 | For 75 mm - 100 mm, enter 2 | For 150 mm - 175 mm, enter 3)

Compressive strength of concrete at 28 days(MPa):
(Note: Enter one of these numbers: 15, 20, 25, 30, 35, 40)

Dry-rodded mass of coarse aggregate(kg/m^3):

Fineness modulus of fine aggregate:
(Note 1: Enter one of these numbers: 2.4, 2.6, 2.8, 3)
(Note 2: If no have information is available for fineness modulus of fine aggregate, enter 2.8)

Percentage of natural moisture of coarse aggregate:

Percentage of natural moisture of fine aggregate:

Percentage of saturated surface dry moisture of coarse aggregate:
(Note: If no have information is available for percentage of saturated surface dry moisture of coarse aggregate, enter 0.5)

Percentage of saturated surface dry moisture of fine aggregate:
(Note: If no have information is available for percentage of saturated surface dry moisture of fine aggregate, enter 0.7)

Bulk specific gravity of coarse aggregate:
(Note: If no have information is available for bulk specific gravity of coarse aggregate, enter 2.68)

Bulk specific gravity of fine aggregate:
(Note: If no have information is available for bulk specific gravity of fine aggregate, enter 2.64)

Specific gravity of cement:
(Note: If no have information is available for specific gravity of cement, enter 3.15)

Level of exposure:
(Note: For mild exposure, enter 1 | For moderate exposure, enter 2 | For severe exposure, enter 3)

Type of structure:
(Note: For thin sections(railings, curbs, sills, ledges, ornamental work) and sections with less than 25 mm cover over steel wet continuously or frequently and exposed to freezing and thawing, enter 1 | For thin sections(railings, curbs, sills, ledges, ornamental work) and sections with less than 25 mm cover over steel exposed to sea water or sulfates, enter 2 | For all other structures wet continuously or frequently and exposed to freezing and thawing, enter 3 | For all other structures exposed to sea water or sulfates, enter 4 | For none these type of structures, enter 5)

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