200,-

Coefficient of permeability in the laboratory K

The measurement method enables calculating the

coefficient of permeability [k.

This study determined the level of coefficient of permeability and transmmissivity including aquifer thickness as well as storativity of the aquifer in the rock of Rivers State.

Since the coefficient of permeability are similar to the transmmissivity.

Therefore from this determined coefficient of permeability from the previous studies carried out, the levels of transmmissivity are determined.

Totally, 144 cylindrical PFC specimens that constituted 12 replicate specimens for the 12 experimental mixes (Table 2) were prepared to evaluate the volumetric properties, coefficient of permeability (K), aged abrasion loss (AAL) and moisture susceptibility.

The hydraulic conductivity of compacted specimens tested is expressed in terms of the coefficient of permeability (K) determined using the falling-head method.

Densification by RGP causes increase in deformation moduli and decrease in the coefficient of permeability and coefficient of volume change.

The general expression for the variation of the coefficient of permeability at a distance 'r' from the centre of the granular pile considering linear variation can be expressed as

hi], initial in-situ value of coefficient of permeability

where h is the GWL, k is the coefficient of permeability of the permeable soil layer, [z.

The coefficient of permeability was calculated using a linearly weighted combination of all soil layers up to the impermeable soil surface in each location.