Advances in Materials Science and Engineering / 2015 / Article / Tab 1

Research Article

Effects of Static Magnetic Fields on the Physical, Mechanical, and Microstructural Properties of Cement Pastes

Table 1

Chemical composition and physical and mechanical properties of the cement used.

Chemical analysisSpecificationResult
NMX-C-414-ONNCCE

SiO222.97
Al2O34.53
Fe2O32.72
CaOt61.38
CaOL0.47
MgO1.46
SO34.0% max.2.61
R.I.8.14
Na2O0.65
K2O1.10
Blaine (cm2/g)4327
% Fineness sieve size 325 (45 μm)1.60
Sanity
 Expansion0.80% max.
 Shrinkage0.20% max.−0.03
Time of setting by Vicat needle (min)
 Initial45 min.192
 Final375 max.313
 False set%79
Compressive strength (N/mm2)
 1 day16.9
 3 days20 min.28.8
 7 days34.9
 28 days30–5040.8

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