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Table 1 Chemical composition of Portland cement (%).

From: Synergistic Effects of Polypropylene and Glass Fiber on Mechanical Properties and Durability of Recycled Aggregate Concrete

CaO

SiO2

Al2O3

Fe2O3

SO3

MgO

K2O

Na2O

63.9

20.6

4.8

3.7

2.4

1.4

0.58

0.38