Interface Influence on Moisture Transport in Building Components: The Wetting Process

ISBN-13: 9783030308025 / Angielski / Miękka / 2019 / 62 str.

Joao M. P. Q. Delgado; Antonio C. Azevedo; Ana S. Guimaraes

Spis treści

Preface

1. Introduction                                                          

1.1 Motivation                                                                                   

1.2 Objectives and methodology                                            

1.3 References                                                            

2. State-of-the-Art                                                                 

2.1 Introduction                                                                    

2.2 Moisture and interface is building components                

2.2.1 Moisture transport in buildings                                     

2.2.2 Numerical methods                                                       

2.2.3 Interface influence on moisture transport                                  

2.3 References                                                                       

3. Moisture Content Determination                                                  

3.1 Introduction                                                                                

3.2 Gravimetric method                                                         

3.3 Nuclear Magnetic Resonance (NMR) method                              

3.4 X-Ray analysis                                                                  

3.5 Gamma ray attenuation method                                                   

3.5.1 Measurement principles                                                 

3.5.2 Setup                                                                             

3.5.2.1 Radioactive source collimator                         

3.5.2.2 Detector                                                                     

3.5.2.3 Measuring electronics                                     

3.5.2.4 Metal support structure                                              

3.5.2.5 Stabilizer                                                                    

3.5.2.6 Calculation of the attenuation coefficient                    

3.5.2.7 Preparation of test specimens                          

3.5.3 Difficulty and limitations                                   

3.5.4 Example of moisture content profiles                            

3.6 References                                                                       

4. Interface Influence during the Wetting Process                              

4.1 Introduction                                                                                

4.2 Preparation of the specimens                                                       

4.3 Results and discussion                                                                 

4.3.1 Hydric resistance                                               

4.3.1.1 Gravimetric Method                                       

4.3.1.2 Gamma Ray                                                    

4.3.2 Synthesis                                                           

4.4 References                                                                       

5. Conclusions