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BSI PD CEN/TR 16639:2014

BSI PD CEN/TR 16639:2014

$198.66

Use of k-value concept, equivalent concrete performance concept and equivalent performance of combinations concept

Published By Publication Date Number of Pages
BSI 2014 66
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This Technical Report provides more detailed information on the k-value concept principles of the equivalent concrete performance concept (ECPC) and the equivalent performance of combinations concept (EPCC) in accordance to EN 206:2013, 5.2.5.

PDF Catalog

PDF Pages PDF Title
4 Contents Page
5 Foreword
6 0 Introduction
0.1 General
0.2 Task Group 5
0.3 k-value concept
0.4 ECPC and EPCC
7 1 Scope
8 2 k-value concept
2.1 k-values in EN 206:2013
2.2 Use of k-values in the member states
9 2.3 Procedure for using the k-value concept
2.3.1 Principle of the k-value concept
10 2.3.2 Method of calculation
11 Figure 1 — Principle of k-value determination (shown for w / (c + a))
12 2.3.3 Example for determination of k
Figure 2 — Example for strength vs. water / (cement + fly ash) relationship
13 Figure 3 — k-value plotted as function of water/cement ratio ωo of reference concrete
14 2.3.4 Further recommendations for the application of the k-value
2.3.5 Example for establishing a general concept using the k-value concept
15 Figure 4 — Determination of a prescriptive k-value from concrete test results [12]
16 2.4 Application of k-value concept by the users
2.4.1 General
2.4.2 Example for concrete mix design applying the k-value concept
17 3 Equivalent concrete performance concept (ECPC)
3.1 General
3.2 Dutch Method
3.2.1 Definitions
19 3.2.2 Procedure and criteria for assessment of durability aspects
20 Table 1 — Reference cement types in relation to the exposure class
21 Table 2 — Durability aspects in relation to the exposure class
Figure 7 — RCM – value after 1 year versus water/cement ratio for Portland cement (PC), slag cement (HOC) and a combination of Portland cement and fly-ash (PC+pvla)
23 Figure 8 — Difference versus probability of acceptance
24 Table 3 — Limit values d (at the population level)
Table 4 — Limit values Tj
3.2.3 Test methods
25 Table 5 — Test methods for the different durability aspects
Table 6 — Fixed limit values for cube strength
3.2.4 Quality assurance
26 3.3 Recommendations for the application of ECPC
27 3.4 Additional information to the use of the Dutch method
Table 7 — Requirements for concrete composition NEN 8005
28 Table 8 — Flow chart calculation assessment paramenter [13]
4 Equivalent performance of combinations concept
4.1 General
29 4.2 UK method
30 4.3 Irish method
31 4.4 Portuguese method
32 4.5 Recommendation for application of EPCC
4.6 Additional information the UK method
4.6.1 Annexes from BS 8500-2 relating to conformity control of combinations
33 Table A.1 — Requirements for the compressive strength of combinations
35 Table C.1 — Mass fraction of addition a in combinations for strength testing
37 Figure C.1 — Determination of conformity limits for combinations
4.6.2 How this works when specifying concrete to BS 8500
39 Table A.3 — Cements and combinations from BS 8500–1
40 Table A.4 — The XC requirements in BS 8500–1
41 4.7 Additional information to the Irish method
42 Table A.6 (NE.1) — Requirements for the compressive strength of combinations
43 4.8 Additional information to the Portuguese method
Table A.7 — Limits for the composition and the compressive strength class of the concrete under the action of chlorides, for a design working life of 50 years
49 Annex A (informative) Replies to the k -value questionnaire of CEN/TC 104/SC 1/TG 5
A.1 General questionnaire
59 A.2 Addition to answer of Finland
61 Tableau NA.F.1 — Valeurs limites applicables en France pour la composition et les propriétés du béton en fonction de la classe d’exposition
62 Bibliography

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BSI PD CEN/TR 16639:2014
$198.66