By A. H. Cardon, C. C. Hiel (auth.), H. R. Sasse (eds.)
Preface Adhesion is a phenomenon architects and civil engineers usually are not very conversant in. In different disciplines wisdom approximately floor homes and the heritage of bonding energies is additionally faraway from passable; however there are lots of vital· purposes in concrete engineering, the place adhesion is important for fulfillment and sturdiness. those contain: - coating and portray - fix of concrete surfaces - bonding of unpolluted to outdated concrete - crack injection - glueing of precast parts - glueing of metal to concrete, and so forth. In 1981 RILEM verified the technical committee 52-RAC 'Resin Adherence to Concrete'. the most goals of the committee's paintings have been - to assemble study effects and useful reviews - to begin and coordinate learn courses - to increase, on a systematic base, attempt equipment for box and for laboratory reasons. one of many result of the committee's paintings is a state of the art record, so that it will be offered orally as a normal document on the foreign Symposium ISAP '86, and may be published both within the RILEM magazine fabrics and constructions or individually. a number of attempt strategies were elaborated and should be ready as drafts for the members ofISAP '86. those are: - direct tensile attempt - pull-off try out - direct shear attempt - slant shear attempt - four-point bending try out - dynamic loading try - thermal compatibility try (two models) - injectibility test.
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Additional resources for Adhesion between polymers and concrete / Adhésion entre polymères et béton: Bonding · Protection · Repair / Revêtement · Protection · Réparation
L3rnndt for his scientific support. 39 ABSTf~AI,;T This paper rewiews the numerical and experimental procedure used to determine the state of stresses along the interface in the concrete and polymerconcrete in the neighbourhood of a propagating crack. Using the photoelastic measurement results and from a load-displacement courve it is posible to determine the stress intensity factor Kuand the Rice integral ~. The ~ integral can be determined from numerical calculations using the finite element method.
In Fig. 5 bar. 5 bar and the capillary pressure as given in Fig. 5. The experiments are continued in order to study in more detail the effect of pore structure, temperature and thickness of the mortar specimens. --------------------. 0 III III External water ~ ressure (bar I a. H. :il ~ Time (h) Fig, 8: Capillary pressure caused by capillary suction and external water pressure, mortar B 6. Local defects The experimental results presented in the previous sections indicated that in the case of a rigid coating osmotic pressures acting on an organic coating may approach the bond strength between coating and the concrete substrate.
1985) Trans. lN ARl"lt: l"iATfRIAUX PULYMEI~ES H. JARUNIEK, T. 6dz, Pologne L'ouvrage a ete realise pour caracteriser la propagation d'une fissure dans la zone de contact entre le beton arme de fibres metalliques (le betonac) et Ie beton polymere. Les essais ont ete faits sur des eprouvettes selon 1a specification ASTr"i E 813-81 et des eprouvettes uCB (une poutre double console) avec des fissures artificielles dans la zone de contact des materiaux. Le calcu1 a ete effectue en utilisant 1a methode des elements fini.
Adhesion between polymers and concrete / Adhésion entre polymères et béton: Bonding · Protection · Repair / Revêtement · Protection · Réparation by A. H. Cardon, C. C. Hiel (auth.), H. R. Sasse (eds.)