Talk:Moisture Measurement

Author: Hans-Jürgen Schwarz

back to Moisture

Overview

• Gravimetric methods
• Chemical methods
• Thermometric methods
• Infrared methods
• Hygrometric methods
• Electrical methods
  • Electrical conductivity
  • Capacity
• Microwave
• Gamma rays (Gamma probe)
• Neutron radiation (Neutron probe)
• TDR-probe
• NMR method
• Acoustic impedance
• Comparison of methods and their practical relevance

Introduction

The three most important questions considering salt or moisture damage are:

• Where does the moisture in the wall come from? Localization of moisture source
• How much moisture does the wall contain? Condition of moisture penetration Durchfeuchtungszustand
• How much salt is present in the wall? Degree of salinization

It is the objective of the moisture measurement is to detect the humidity that can actually be removed from a building material, i.e. not the chemically bound water or the semi free water. The chemically bound water (e.g. in gypsum&nbsp CaSO_{4 *} 2H₂O) should not be detected because it is a component of the building material.

Literature

--SLeithaeuser 23:06, 27 January 2013 (CET)