Methods of Measuring Moisture in Building Materials and Structures

RILEM TC 248-MMB was established in 2012 with the main aim to improve and distribute knowledge related to moisture measurement in construction materials in various scientific and industrial applications.

Properties and performance of building materials and structures are influenced to a large extent by the moisture conditions in the materials. Obvious examples are heat conductivity, shrinkage and creep, transport properties, most types of deterioration, discoloration etc. For research and applications the moisture conditions must be quantified, by measurements in the laboratory or under field conditions. There is much variation in methods being used, even within the same topic, in different countries, both with regard to materials and to applications. No consensus whatsoever does exist. For the construction industry it is important to be able to quantify the moisture conditions in an accurate way in various applications.

This state-of-the-art report is divided into two parts, Principles and Applications, with altogether 28 chapters on various moisture measuring principles and a number of applications.

Contenu

Preface, by L.-O. Nilsson.- Members of RILEM TC-248 MMB.- 1 Introduction, by L.-O. Nilsson, E. Franzoni and H. Paroll.- 2 Definitions, by L.-O. Nilsson, E. Franzoni, O. Weichold.- PART A MOISTURE MEASURING PRINCIPLES.- 3 Drying methods, by K. Kielsgaard Hansen, S. Lindmark, L.-O. Nilsson and O. Weichold.- 4 Calibration techniques, by M.A. Climent, Sture Lindmark, L.-O. Nilsson.- 5 Gravimetry, by L.-O. Nilsson.- 6 Chemical reaction, by L.-O. Nilsson, M.A. Climent, O. Weichold.- 7 Infrared thermography, by J.-F. Lataste, L.-O. Nilsson.- 8 Electrical resistance, by J.-F. Lataste, C. Thiel, E. Franzoni.- 9 Gas permeability, by F. Agostini.- 10 Hygrometry, by L.-O. Nilsson, K. Kielsgaard Hansen, M. Azenha.- 11 Pore water pressure, by L.-O. Nilsson.- 12 Introduction to electromagnetic radiation, by O. Weichold.- 13 Nuclear magnetic resonance and Magnetic Resonance Imaging, by C. Thiel, C. Gehlen.- 14 Capacimetry, by J.-F. Lataste, W. Denzel, H. Paroll.- 15 Time Domain Reflectometry, by A. Michel, H. Sobczuk, K. Kielsgaard Hansen.- 16 Microwave reflection, by J.-F. Lataste, A. Göller.- 17 Neutron radiography, by P. Zhang, T. Zhao.- 18 X-ray and gamma-ray, by O. Lindgren, L.-O. Nilsson.- PART B APPLICATIONS.- 19 Spatial distributions, by J.-F. Lataste, K. Kielsgaard Hansen, L.-O. Nilsson, C. Thiel, A. Schießl-Pecka, A. Göller, C. Gehlen.- 20 Moisture distribution in a structure/specimen - general, by L.-O. Nilsson.- 21 ND-methods - from a surface, by K. Kielsgaard Hansen, J.-F. Lataste, C. Thiel.- 22 Coring, drilling and sampling techniques, by L.-O. Nilsson, E. Franzoni.- 23 Installation of probes, by L.-O. Nilsson, F. Agostini, C. Thiel.- 24 Specimen or core.- in the laboratory (sides available) , by K. Kielsgaard Hansen, J.-F. Lataste, L.-O. Nilsson, C. Thiel.- 25 Moisture in a substrate before surface covering, by L.-O. Nilsson.- 26 Monitoring, remote measurements, by F. Agostini, E. Franzoni, K. Kielsgaard Hansen, H. Paroll, L.-O. Nilsson.- 27 Heterogeneous materials, by L.-O. Nilsson, E. Franzoni.- 28 Conclusions.- 29 References.