,1Why assess the properties of near-surface concrete? A.E. Long, G.D. Henderson and F.R. Montgomery .1 Reliability of partially destructive tests to assess the strength of concrete on site J.H. Bungey and M.N. Soutsos..39 Assessment of the durability of concrete from its permeation properties: A review J. KroppandL. Basheer .. 65 Near-surface moisture gradients and in-situ permeation tests P.A.M. Basheer and E.Nolan . 91 Near-surface sensors for condition monitoring of cover-zone concrete W.J. McCarter 115 Test methods for on-site measurement of resistivity of concrete A RILEM TC-154 Technical recommendation R.B.139 Half-cell potential mapping to assess repair work on RC-structures B. Elsener.- .l55 On-site measurements of corrosion rate of reinforcements C. Andrade and C. Alonso. .171 Index 184