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4. Formula qualification
As explained above, the quality of a structure concreted with BAP depends very strongly (but not exclusively) on the quality of the concrete, with the parameters of the placing being much less influential than for ordinary vibrated concretes.
The formulation qualification test is therefore particularly important: it involves defining an Abrams Cone spread range (and the corresponding water content range) within which the expected BAP performance is obtained.
For fresh properties in particular, the principle is as follows:
the high-derivative formula (with maximum spread) must be satisfactorily stable;
the low-derivative formula (with minimum spread) must lead to a correct filling rate and must not lead to a deterioration in density due to insufficient gravity...
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Formula qualification
Bibliography
Standards
- Béton Spécification, performance, production et conformité - NF EN 206/CN - décembre 2014
- Self-compacting concrete – Abrams cone spread test - NF EN 12350-8 - novembre 2010
- Self-compacting concrete – Funnel flow test - NF EN 12350-9 - novembre 2010
- Self-compacting concrete – L-box flow test - NF EN 12350-10 - novembre 2010
- Self-compacting concrete – Sieve stability test - NF EN 12350-11 - novembre...
Directory
Organizations – Federations – Associations (non-exhaustive list)
AFGC – French Civil Engineering Association http://www.afgc.asso.fr
BIBM – Bureau international du béton manufacturé – European Federation for Precast Concrete Industry ...
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