Transport Properties of Concrete

Peter A. Claisse is Professor Emeritus at Coventry University and the author of more than 100 publications on construction and materials, including the Woodhead title Transport Properties of Concrete: Measurements and Applications. He graduated with a degree in Physics from Oxford University and then spent the next 9 years working as a Civil Engineer on major UK construction sites including 4 years on the Torness nuclear power station.?After obtaining a PhD in Civil Engineering at Leeds University, studying Silica Fume in concrete, he then went to the AEA Technology Harwell laboratory for 3 years to work on Nuclear waste containment.?He was at Coventry University for 20 years, teaching Civil Engineering Materials and researching transport processes in concrete and the use of secondary materials in cement.

Author contact details
Woodhead Publishing Series in Civil and Structural Engineering
Introduction

The fundamental equations
Computer codes
Structure of this book
Experimental data
Summary of contents
References


Acknowledgements
1. The transport properties of concrete and the equations that describe them

Abstract:
1.1 Introduction
1.2 The transport processes
1.3 Processes which increase or reduce the transport
1.4 Conclusions
1.5 References


2. Computer models to predict the transport processes in concrete

Abstract:
2.1 Introduction
2.2 Expressing the basic equations as computer code
2.3 Other elements of the code
2.4 Example: calculations for a waste containment barrier
2.5 Conclusions
2.6 Reference


3. Surface tests to determine transport properties of concrete – I: the tests

Abstract:
3.1 Introduction
3.2 The initial surface absorption test (ISAT)
3.3 The Figg air permeation index
3.4 Other tests
3.5 Vacuum preconditioning: a development of the ISAT test
3.6 Vacuum preconditioning for other tests
3.7 Conclusions
3.7 References


4. Surface tests to determine transport properties of concrete – II: analytical models to calculate permeability

Abstract:
4.1 Introduction
4.2 Additional tests
4.3 Modelling of the absorption tests
4.4 Experimental testing for absorption
4.5 Tests using a vacuum to measure air flow
4.6 The choice of test for practical applications
4.7 Conclusions
4.8 References


5. Surface tests to determine transport properties of concrete – III: measuring gas permeability

Abstract:
5.1 Introduction
5.2 Theoretical analysis
5.3 Investigation of methods for sealing the drilled holes
5.4 Determination of pressure decay profile
5.5 Comparison of in situ test methods
5.6 Conclusions
5.7 References


6. Measurements of gas migration in concrete

Abstract:
6.1 Introduction
6.2 Experimental method
6.3 Analysis of experimental data
6.4 Results for gas permeability of concrete
6.5 Comparison with gas permeability of grouts
6.6 The effect of interfaces on gas permeability
6.7 Discussion
6.8 Conclusions
6.9 Reference


7. Water vapour and liquid permeability measurements in concrete

Abstract
7.1 Introduction
7.2 Experimental methods
7.3 Methods of analysis of results
7.4 Results and discussion
7.5 Conclusions
7.6 References


8. Measurement of porosity as a predictor of the transport properties of concrete

Abstract:
8.1 Introduction
8.2 Sample preparation and testing programme
8.3 Tests for porosity
8.4 Tests for properties controlled by transport
8.5 Oxygen transport
8.6 Vapour transport
8.7 Results and discussion
8.8 Conclusions
8.9 References


9. Factors affecting the measurement of the permeability of concrete

Abstract:
9.1 Introduction
9.2 Experimental programme
9.3 Results
9.4 Discussion
9.5 Conclusions
9.6 References


10. Electrical tests to analyse the transport properties of concrete – I: modelling diffusion and electromigration

Abstract
10.1 Introduction
10.2 The ASTM C1202 test and the salt bridge
10.3 The physical processes
10.4 Analytical solutions
10.5 The computer model
10.6 Initial experimental validation
10.7 Full model validation
10.8 Conclusions
10.9 References


11. Electrical tests to analyse the transport properties of concrete – II: using a neural network model to derive diffusion coefficients

Abstract:
11.1 Introduction
11.2 Experimental method
11.3 Neural network optimisation model
11.4 Results and discussion
11.5 Conclusions
11.6 References


12. Electrical tests to analyse the fundamental transport properties of concrete – III: modelling tests without applied voltages

Abstract:
12.1 Introduction
12.2 Test methods
12.3 The analytical solution
12.4 Computer modelling – theoretical background
12.5 Experimental programme
12.6 Results and discussion
12.7 Conclusions
12.8 References


13. Applications using measured values of the transport properties of concrete I: predicting the durability of reinforced concrete

Abstract
13.1 Introduction
13.2 Controlling parameters for concrete durability
13.3 Measuring corrosion of reinforcement
13.4 Correlating transport measurements with corrosion
13.5 Predictive models for corrosion
13.6 Conclusions
13.7 References


14. Applications using measured values of the transport properties of concrete II: modelling the effect of gas pressure

Abstract:
14.1 Introduction
14.2 Background: mechanisms of gas migration
14.3 The effects of stress generation in cementitious materials
14.4 Sensitivity to material properties and conditions
14.5 Behaviour in a repository
14.6 Conclusions
14.7 References


15. Applications using measured values of the transport properties of concrete – III: predicting the transport of liquids through concrete barriers for waste containment

Abstract:
15.1 Introduction
15.2 The computer model
15.3 Laboratory testing
15.4 Site trials
15.5 Reducing transport in cracked concrete
15.6 Conclusions
15.7 References


Conclusions, recommendations and guidance for measuring transport properties of concrete

The state of the art
Recommendations and guidance


Appendix 1: List of papers for the experimental data and derivations
Appendix 2: Notation and abbreviations

Notation
Abbreviations


Index