Filtern
Erscheinungsjahr
- 2014 (4) (entfernen)
Dokumenttyp
Sprache
- Englisch (4) (entfernen)
Referierte Publikation
- nein (4) (entfernen)
Schlagworte
- Alkali-activated binders (1)
- Betonstahl (1)
- Depassivation (1)
- Lochkorrosion (1)
- One-part geopolymers (1)
- Rheology (1)
- SHCC corrosion crack (1)
In Europe a multi-national research project was initiated entitled “Rational Production and
Improved Working Environment through Using Self-Compacting Concrete”, followed by
another project entitled “Testing SCC”, which helped spreading the benefits of SCC to a wide
range of appliers. This project was also the basis of a widely accepted European guideline
on Self compacted concrete published by the European industry association bibm,
CEMBUREAU, EFCA, EFNARC, ERMCO, which again builds the basis of the European
standards for the testing of SCC (EN 12350, Parts 8 to 12) as well as for the actual
modernisation of the European concrete standard EN 206-1.
This paper describes the fibre-reinforced strain hardening cement-based composite (SHCC) performance under various exposure conditions. Cracked and uncracked SHCC beam specimens were subjected to cyclic wetting and drying under chloride exposure to observe the time of depassivation and corrosion potential of the imbedded reinforcement. Two reference mortars, one of the same strength class as the SHCC (Mortar 1) and the other of high strength class (Mortar 2) were used under the same conditions. Finally, tests for determining the rapid chloride migration coefficient, electrical resistivity, capillary water absorption and freezethaw were also performed to observe the corrosion probability and diffusion rate in uncracked SHCC and mortars.