Hansen, Ernst Jan De Place1; Hansen, Kurt Kielsgaard2; Persson, Bertil3
1 Department of Structural Engineering and Materials, Technical University of Denmark2 Department of Civil Engineering, Technical University of Denmark3 Lund Institute of Technology
The test method covers the determination of internal relative humidity (RH) in hardened concrete and cement mortar using RH instruments. The determination of RH is done on crushed samples of concrete or cement motar. This test method is only for measuring equipment which gives off or takes up humidity to a limited extent, so that a stable RH value can be obtained within 24 hours.