Civil Engineering Reference
In-Depth Information
Table 6.4 Summary of the correlation of each concrete property with the density and water
absorption of the aggregates in the mix and the 7-day compressive strength of concrete
6.5 Conclusions
A graphical analysis method was developed and successfully used to analyse some
of the most important properties of concrete. This analysis proves the viability of a
methodology able to anticipate the behaviour of some fresh and hardened concrete
properties. The prior knowledge of properties such as density and water absorption
of the aggregates in the concrete mix will make it possible to estimate the values of
some hardened concrete properties.
The search for international experimental results for this study revealed great
differences in the test procedures and organisation of the published information.
Most of the campaigns accepted the variation of more than one parameter,
including the w/c ratio, making the analysis of the effect of the replacement ratio
impracticable. These obstacles meant that a great number of campaigns could not
be used in the graphical analysis method used in this study. However, this study
