BE-CERT: Who are we? BE-CERT npo since 2014 Our staff. Our location. Our mission. 13 members +

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2 BE-CERT: Who are we? BE-CERT npo since 2014 Our staff 13 members + Our location Whe moved! Near Viaduct Herrmann-Debroux (!) next to Metro Station Demey Our mission Quality@First

3 BE-CERT: Our assignment Sectoral Organism Organiser of several certification schemes for concrete, mortar and their constituants Organiser of Round Robin Tests Mrs. Ann Van Gucht

4 BE-CERT: Our assignment Certification Body Daily management of the own schemes, as well as certification body for other organisms (UBAtc, COPRO) Mr. Yves Dugauquier

5 BE-CERT: Our assignment Inspection Body Sampling, inspection and audit as subcontractor for own or other certification bodies Mrs. Caroline Ladang

6 BE-CERT: Our assignment Metrology Calibration, control and verification of laboratory equipment, mainly under BELAC accreditation Mr. Koen Derboven

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8 Representative data Audit testing on ready-mix concrete Results from ALL BENOR-certified production units 4 to 6 samples for each individual production unit Evenly spread over the year, climate conditions, application,... Samples mainly taken on the construction site Approximately 900 individual samples each year!

9 Representative data Full identification and testing of each sample Specification and application Theoretical concrete composition Recipe Real recorded weights of dosed constituants Measurement of watercontent, density and air content Determination of the consistency and the loss of consistency Determination of the compressive strength (Determination of the water absorption index)

10 Representative data T(1,50) T(1,00) T(0,65) T(0,60) T(0,55) T(0,50) T(0,45) T(0,55)A T(0,50)A T(0,45)A C8/10 C12/15 0,35% C16/20 0,81% 0,12% C20/25 0,46% 2,43% C25/30 0,12% 4,51% 15,84% 21,39% C30/37 1,16% 11,91% 22,31% 0,69% 2,54% C35/45 0,12% 0,81% 10,75% C40/50 0,58% 1,50% C45/55 0,23% C50/60 0,23% 1,04% > C50/60 0,12%

11 Representative data 100% 100% 90% 90% 80% 80% 70% 70% 60% 60% 50% 40% 41.85% 38.61% 43.41% 50% 40% 30% 30% 20% 10% 0% 0.35% 0.92% 2.89% 11.68% 2.08% 0.23% 1.27% 0.12% 0.12% 0.12% 5.02% 5.95% 14.24% 20.42% 10.74% 20% 10% 0%

12 What s in a recipe? Binder Content T-class NBN B Mean value StdDev Min Max T(0,45) T(0,45)A T(0,50) T(0,50)A T(0,55) T(0,60) T(0,65) T(1,00)

13 Samples [%] What s in a recipe? 45% Margin W/C-ratio recipe versus NBN B % 35% 30% 25% 20% 15% 10% No margin for W/C max % % % % % % % % % 5% 0% Max. W/C-ratio (specification) - W/C-ratio recipe

14 Samples [%] What s in a recipe? Margin W/C-ratio recipe versus NBN B Category D 60% 50% 40% 30% 20% % 0% Max. W/C-ratio (specification) - W/C-ratio recipe

15 Relative frequency What s in a recipe? Aimed value for Consistency Class S3 40% 35% S % 35.61% 37.69% 30% 25% 25.63% 26.13% 20% 16.67% 15% 10% 5% 0% 1.52% 0.50% 0.00% 0.00% 7.58% 7.54% 0.38% 1.51% 1.89% 0.50% 0.00% 0.00% 0.50% 0.00% 0.00% 0.00% Slump[mm]

16 Relative frequency What s in a recipe? Aimed value for Consistency Class S4 40% S % 35% 33.12% 31.80% 30% 25% 22.22% 24.74% 20% 18.45% 19.66% 15% 10% 10.92% 5% 0% 0.21% 0.49% 0.49% 1.05% 0.00% 0.21% 0.24% 0.00% Slump [mm]

17 What s in a recipe? Ic-value Value expressed in liter of water per m³ Takes into account the deviations from the theoretical value Correction for deviation on water Correction for deviation on admixture Ic = 0 is perfect For design and initial testing, Ic must be < 10l/m³

18 Relative frequency and what does the customer receive? 30% Frequency distribution Water by drying versus Water theoretical value 25% 20% 15% 10% 5% 0% [-40,-35[ [-35,-30[ [-30,-25[ [-25,-20[ [-20,-15[ [-15,-10[ [-10,-5[ [-5,0[ [0,5[ [5,10[ [10,15[ [15,20[ [20,25[ [25,30[ [30,35[ [35,40[ [40,45[ watercontent drying - watercontent theoretical [l/m³]

19 and what does the customer receive? : evolution Mean value and Standard Deviation Requirement TRA : Water content ± 14 l/m³ compared to the recipe

20 Samples [%] and what does the customer receive? Exceeding limit W/C-ratio 10% 9% 8% 7% 6% W/C dr > W/C max W/C dr > W/C max + 0,02 W/C dr > W/C max + 0, % 18 % 4% % 20 % 6 % % 16 % 3 % % 20 % 5 % % 16 % 2 % % 14 % 3 % 5% 4% 3% 2% 1% 0% W/C-ratio (drying) limit W/C-ratio

21 and what does the customer receive? Exceeding limit W/C-ratio Category S and D

22 Delivery to expectations 60% 50% 40% 30% 20% 10% 0%

23 Delivery to expectations 120% 100% 80% S1 S2 S3 S4 60% 40% 20% 0% Slipform Kubel/Cufa Pump Tube Direct Piling machine Diaphragm walls

24 Wth (l/m³) Delivery to expectations Wth versus slump value Category S - S4 Ic NOV (5,63%) Ic OV (94,37%) Measured slump (mm)

25 Wth (l/m³) Delivery to expectations Wth versus slump value Category D S Ic OV (95,61%) Ic NOV (4,39%) Measured slump (mm)

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27 What? Certification of concrete compositions for road applications in compliance with SB 250, CCT Qualiroutes, Typebestek van het Brussels Hoofdstedelijk Gewest Who? OSO = COPRO OCI = BE-CERT and COPRO How? Preliminary study of the concrete composition(s) Initial audit and factory production control on site Combined scheme for plants under BENOR-certification according to TRA 550

28 What? Certification for companies, transporting concrete under the BENOR-mark Who? OSO and OCI = BE-CERT How? Transport companies implement a quality system, with focus on Competence and training Equipment control Transparancy of the missions Follow-up of non-conformities and complaints Initial and follow-up audit, as well as random audit of the drivers on site

29 Publication of the TRA 550 PL, EL

30 What? Certification of concrete with high quality recycled aggregates under the BENORmark Who? OSO and OCI = BE-CERT, certification under TRA 550 How? With the publication of NBN B15-001, release of the TRA 550 vs 4.0, with extension to the R Category for Recycled concrete, focused on Origin and quality of recycled aggregates Process control (humidity control, slump behaviour,...) Concrete quality assurance

31 What? Green concrete Production of concrete with less environmental impact, but with full assurance of quality and performance for the customer Who and How? Developments on different levels: Standardization Methodology for alternative binders: NBN B Methodology for non-reactive materials: NBN B15-xxx under development Product quality and constancy of performance CE-marking and BENOR-mark for products Demonstration of specific suitability ATG or producer in the frame of specific projects Product certification and production control BENOR Developments under TRA 550