Moisture profile of drying concrete
Relative humidity measurements were recordered over a drying period of 11 days. Two different levels of humidity were used for testing
Results and Conclusions
From the experiments carried out in Chapter 3, the following results relating to moisture profiles, permeability and sorptivity were assessed and discussed. This chapter represents the outcome from the experimental methods, supplying the relevant data used for discussion.


Varying Parameters:
w/b ratio, curing conditions,
Oxygen permeability index test
OPI tests were carried out using a number of different samples with varying parameters. Comparisons were made between samples with and without the 5 mm surface layer
Varying Parameters:
w/b ratio, binder type,curing conditions
Varying Parameters:
w/b ratio, binder type,
curing conditions
Water sorptivity index test
On completion of the OPI tests, the same samples were used to carry out water sorptivity index tests. These tests were carried out to measure the sorption transport properties of the concrete, as well as to analyse the porisity of the 5 mm surface layer

General conclusions were drawn up linking the various aspects of durability, deterioration, humidity and corrosion. Click on the following lonk to access the general conclusions