BS EN 12390-11:2015 – TC:2020 Edition
$217.84
Tracked Changes. Testing hardened concrete – Determination of the chloride resistance of concrete, unidirectional diffusion
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 82 |
This European Standard is a method for determining the unidirectional non-steady state chloride diffusion and surface concentration of conditioned specimens of hardened concrete. The test method enables the determination of the chloride penetration at a specified age, e.g. for ranking of concrete quality by comparative testing. Since resistance to chloride penetration depends on the ageing, including the effects of continual hydration, then the ranking may also change with age. The test procedure does not apply to concrete with surface treatments such as silanes and it may not apply to concrete containing fibres (see E.1).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 48 | Contents Page |
| 49 | European foreword |
| 51 | Introduction |
| 52 | 1 Scope 2 Normative references 3 Term, definitions symbols and abbreviated terms 3.1 Terms and definitions |
| 53 | 3.2 Symbols and abbreviated terms |
| 54 | 4 Principle 5 Reagents and apparatus 5.1 Reagents |
| 55 | 5.2 Apparatus |
| 56 | 6 Preparation of specimens 6.1 Preparing sub-specimens |
| 57 | Figure 1 — Specimen preparation 6.2 Conditioning and preparation of profile specimen for chloride testing 6.2.1 Vacuum saturation of the profile specimens 6.2.2 Sealing surfaces other than the surface to be exposed |
| 58 | 6.2.3 Profile specimen for immersion Figure 2 — Example of an immersed specimen and sealed surfaces 6.2.4 Profile specimen for ponding |
| 59 | Figure 3 — Example of a profile specimen and pond sealed to surface 6.2.5 Profile specimen for inversion Figure 4 — Example of an inversion specimen arrangement 7 Procedure 7.1 Exposure conditions 7.1.1 Chloride exposure solution |
| 60 | 7.1.2 Exposure temperature 7.2 Exposure method 7.2.1 General 7.2.2 Immersion 7.2.3 Ponding 7.2.4 Inversion 7.3 Exposure period 7.4 Determination of initial chloride content (Ci) |
| 61 | 7.5 Profile grinding |
| 62 | Table 1 — Recommended depth intervals (millimetres) of profile grinding for CEM I concrete Table 2 — Recommended depth intervals (millimetres) of profile grinding for concrete containing ggbs, fly ash or silica fume 7.6 Chloride analysis 8 Regression procedure and expression of results |
| 64 | Figure 5 — Illustration of regression analysis |
| 65 | 9 Test report 10 Precision |
| 66 | Table 3 — Precision data |
| 67 | Annex A (informative) Diffusion coefficients Figure A.1 — Unit section for defining chloride flow |
| 68 | Annex B (informative) Core test specimen Figure B.1 — Specimen and sub-specimens from a core specimen |
| 69 | Annex C (informative) Typical equipment and procedure for vacuum saturation C.1 Apparatus Figure C.1 — Typical arrangement of equipment used for vacuum saturating concrete specimens C.2 Procedure |
| 71 | Annex D (normative) Immersion method for large specimens Figure D.1 — Example of a large immersed specimen |
| 72 | Annex E (informative) Guidance on the test procedure E.1 Guidance on suitable concretes types E.2 Explanation of why water is used for saturation and curing E.3 Guidance on the selection of the exposure solution E.4 Curve-fitting to the error-function solution to Fick’s 2nd law |
| 74 | Annex F (informative) Examples for calibration of the calculation procedure for regression analysis F.1 Introduction |
| 75 | F.2 Chloride profile 1 Table F.1 — Input values for chloride profile 1 Figure F.1 — Diagraph to Table F.1 |
| 76 | Table F.2 — Results for chloride profile 1 F.3 Chloride profile 2 Table F.3 — Input data for chloride profile 2 Table F.4 — Results regression analysis for profile 2 |
| 77 | Figure F.2 — Diagraph to Table F.3 and F.4 F.4 Chloride profile 3 Table F.5 — Input data for chloride profile 3 |
| 78 | Figure F.3 — Diagraph to Table F.5 Table F.6 — Results regression analysis for profile 3 |
| 79 | Bibliography |
