Volume 6, No. 3, 2012
Received: 2012/06/20, Accepted:
Authors:
Majid Matouq Assas;
Abstract:
Measurement of concrete permeability is increasingly being used as an index for quality control in addition to
concrete compressive strength. In the present work, the behavior of three different types of concrete was
investigated to determine the transport properties and concrete compressive strength up to one year. The mix
variables investigated include: cement content (300, 350, 400 and 450 kg/m3), water/cement ratio (0.35, 0.40,
0.45 and 0.50) and mineral pozzolanic materials (10% silica fume and 20% fly ash as a partial replacement of
cement content). The experimental results were statistically analyzed to develop correlations between the
concrete constituents and the selected durability indices of concrete. The test results showed an improvement
in transport properties at higher levels of cement content and lower water/cement ratios. The permeability
was significantly influenced by the inclusion of silica fume and fly ash in concrete. Test results showed that
silica fume concrete (SFC) gives better performance when compared with normal and fly ash concrete (FAC)
in terms of concrete compressive strength, chloride ion permeability and water penetration depth.
Keywords:
Durability, Permeability, Silica fume, Fly ash, Compressive strength, Chloride ion permeability