Publications
Proceedings pro002 : International RILEM Workshop on Chloride Penetration into Concrete Saint-Rémy-lès-Chevreuse, France (1995)
Title: International RILEM Workshop on Chloride Penetration into Concrete Saint-Rémy-lès-Chevreuse, France (1995) Edited by L.-O. Nilsson and J.-P. Ollivier ISBN: 2-912143-00-04 e-ISBN: 2912143454 Pages: 496 Publication date: 1995 |
Chloride penetration into concrete is one of the most decisive processes for durability and service-life of concrete structures. Design for durability of new structures, and maintenance and repair of existing structures, requires a correct understanding and quantification of the processes involved.
Throughout the world, much work has been done and is going on, but still we cannot predict the penetration process with any accuracy. On the contrary, recent findings show that a larger lack of knowledge exists than expected only a few years ago. At numerous international conferences and in papers published in journals, it seems that only more data is added but that very little new knowledge is gained. Improved discussion and cooperation, between researchers, as well as between researchers and engineers, may push development in a fruitful direction. This book is proposed to take a first step in this direction.
Contents
Foreword and Introduction |
Pages: XIII - XV |
Session 1: Chloride Binding
The determination of chloride binding relationships |
Pages: 3 - 9 |
Quick method to determine free and bound chlorides in concrete |
Pages: 10 - 16 |
Chloride penetration - non destructive determination of the free chloride content in mortar and concrete |
Pages: 17 - 26 |
Effect of type of aggregate, temperature and
drying/rewetting on chloride binding and pore solution composition |
Pages: 27 - 35 |
Chloride binding isotherms - An approach by applying the modified BET equation |
Pages: 36 - 42 |
An original method to determine the non linear chloride binding isotherm from bulk specimens of mortar |
Pages: 43 - 50 |
Session 2. Steady state chloride diffusion
Diffusion behaviour of chloride ions in concrete |
Pages: 53 - 63 |
On the non-applicability of unmodified Fick's laws to ion transport through cement based materials |
Pages: 64 - 73 |
Evidence of the concentration dependent ionic diffusivity through saturated porous media |
Pages: 74 - 76 |
Steady-state diffusion characteristics of cementitious materials |
Pages: 77 - 84 |
Multi-scale modelling of the diffusivity of mortar and concrete |
Pages: 85 - 94 |
Fundamentals of migration experiments |
Pages: 95 - 104 |
An electrochemical method for accelerated testing of chloride
diffusivity in concrete |
Pages: 105 - 114 |
Rapid determination of chloride diffusivity in concrete with blending
agents |
Pages: 115 - 125 |
On chloride diffusion coefficients obtained by using
the electrically accelerated methods |
Pages: 126 - 134 |
Comparison of AASHTO T-277 (electrical) and
AASHTO T-259 (90d ponding) results |
Pages: 135 - 149 |
Determination of chloride diffusion coefficient using
two different steady-state methods : influence of
concentration gradient |
Pages: 150 - 160 |
The effect of concentration on the accelerated
chloride ion migration test for modified concretes |
Pages: 161 - 168 |
Session 3: Non-steady state chloride transport
A non-parametric method for estimation of the
diffusion coefficient of chloride in concrete |
Pages: 171 - 181 |
Modelling of skin effects on diffusion processes in
concrete |
Pages: 182 - 194 |
A new approach to the analysis of time-dependent changes in chloride profiles to determine effective diffusion coefficients for use in modelling of chloride ingress |
Pages: 195 - 205 |
A Windows program for the prediction of chloride penetration into submerged concrete |
Pages: 206 - 215 |
Non-steady state chloride transport in modified concretes |
Pages: 216 - 224 |
Chloride diffusion and resistivity testing of five
concrete mixes for marine environment |
Pages: 225 - 233 |
The effect of some test variables on chloride profiles |
Pages: 234 - 242 |
Chloride penetration into cracked concrete |
Pages: 243 - 249 |
Influence of the loading on the penetration of chlorides in reinforced concrete |
Pages: 250 - 262 |
Session 4: Combined transport processes
Mixture theory applied to chemical reactions and diffusion of different mediums in mature concrete ;
A hypothetical model, part I |
Pages: 265 - 278 |
Mixture theory applied to chemical reactions and
diffusion of different mediums in mature concrete ;
A hypothetical model, part II |
Pages: 279 - 289 |
Experimental investigations on binding of chloride and combined effects of moisture and chloride in cementitious materials |
Pages: 290 - 301 |
Experimental results concerning combined transport of humidity and chloride in non steady state |
Pages: 302 - 314 |
Chloride transport due to wick action in concrete |
Pages: 315 - 324 |
Penetration of chlorides into concrete - Phenomena and consequences |
Pages: 325 - 333 |
Chloride penetration due to the hydratation suction
of the cement |
Pages: 334 - 344 |
Session 5: Chloride environments
Chloride profiles in concrete repair materials |
Pages: 347 - 355 |
Description of exposure to chloride of marine
concrete strutures |
Pages: 356 - 372 |
Session 6: Chloride profiles in concrete structures
Chloride penetration into concrete exposed to severe
marine environment |
Pages: 373 - 380 |
Chloride penetration results for several prestressed- concrete
motorway viaducts in Slovenia |
Pages: 381 - 387 |
Issues related to recent developments in service life
specifications for concrete structures |
Pages: 388 - 397 |
Practical non-steady state chloride transport as a
part of a model for predicting the initiation period |
Pages: 398 - 406 |
Design of rebar concrete covers in marine concrete
structures. Deterministic approach |
Pages: 407 - 416 |
Design of rebar concrete covers in marine concrete
structures Probabilistic approach |
Pages: 417 - 426 |
Session 7: Chloride threshold level
Chloride threshold levels for corrosion induced deterioration of steel
in concrete |
Pages: 429 - 440 |
Time to depassivation depending on concrete
composition and environmental conditions |
Pages: 441 - 452 |
Critical chloride concentrations for the onset of active reinforcement corrosion |
Pages: 453 - 459 |
A proposed technique for determining chloride thresholds |
Pages: 460 - 469 |
The importance of chloride diffusion |
Pages: 470 - 480 |