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IBRACON Structures and Materials Journal • 2012 • vol. 5 • nº 5
Influence of the type of measuring device in determininging the static modulus of elasticity of concrete
average of the modulus for specimens 100 mm x 200 mm and 150
mm x 300 mm were 24.4 GPa e 26.2 GPa, respectively. That is,
the specimens 150mm x 300mm had an average 7% higher than
the average obtained for specimens 100mm x 200 mm.
The Duncan method also demonstrated that the strain gages pre-
sented results similar to the dial indicators, since their averages for
Figure 4 – Histogram of the compressive strength results obtained from concrete class C30 specimens
18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Compressive Strength (MPa)
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Nº. Observations
Figure 5 – Histogram of the compressive strength results obtained from concrete class C60 specimens
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Compressive Strength (MPa)
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Nº . Observations