Approximate Composition of Portland Cement, Table

Approximate Composition of Portland Cement, Table

Table
Table 2: Approximate Composition of Portland Cement (ASTM Types IV)
 
ASTM type and name composition (%)* characteristics applications
C3S  C2S  C3A  C4AF 
I (Ordinary) 4265 1030  017  618 no special requirements general construction

    (e.g., sidewalks)
II (Modified) 3560 1535 08 618 moderate sulfate resistance,

   moderate heat of hydration drainage systems, sea walls,

    floor slabs, foundations
III (High-early-strength) 4570 1030 015 618 higher strength soon after

    pouring cold-weather construction
IV (Low-heat) 2030 5055 36 815 low heat of hydration massive structures

    (e.g., dams)
V (Sulfate-resistant) 4060 1540 05 1018 high sulfate resistance foundations in high-sulfate

    soils
See as table:
*Source: American Concrete Institute, Guide to the Selection and Use of Hydraulic Cements (1985).

* * *


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