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 accustomed to. In different disciplines wisdom approximately floor homes and the heritage of bonding energies can also be faraway from passable; however there are lots of very important· purposes in concrete engineering, the place adhesion is important for fulfillment and sturdiness. those comprise: - coating and portray - fix of concrete surfaces - bonding of clean to previous concrete - crack injection - glueing of precast components - glueing of metal to concrete, and so on. In 1981 RILEM proven the technical committee 52-RAC 'Resin Adherence to Concrete'. the most goals of the committee's paintings have been - to gather learn effects and functional studies - to start up and coordinate learn courses - to enhance, on a systematic base, attempt equipment for box and for laboratory reasons. one of many result of the committee's paintings is a cutting-edge record, so as to be offered orally as a common file on the foreign Symposium ISAP '86, and may be published both within the RILEM magazine fabrics and constructions or individually. numerous try innovations were elaborated and may be ready as drafts for the individuals ofISAP '86. those are: - direct tensile try - pull-off attempt - direct shear attempt - slant shear try out - four-point bending try - dynamic loading try out - thermal compatibility attempt (two types) - 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
Modes of failure after splitting tests of model concrete 50 E () ....... -1 10 Ul s::Q) E-< 0 10 20 30 40 50 Tensile strength tR (kgf I em' ) Fig. 5. Relationship between ts and tR of model concrete 29 - M4d - 39 ts Model aggregate ~ E 0 ~ bD 50 .. ) oo:too:t :::;;::::;;: :::;;: ~ ~ t::: t::: ~ ~ ~ ~ R '0'0 2:'0 N ~~ :::;;: I I '0'0 2:'0 N .. ) oo:too:t i .. s:: 40 I. ) I I '0'0 Noo:t :::;;::::;;: Fig. 6. Tensile strength of model concrete 40 / / ~/e ~ 35 t::. ts ......... 937tR B F KP - I 0 lJ.
N-W ~ 500 H +' rJl~400 / Q/ All' // iii " ~" 4;6. 7 Cement-void ratio Cement-void ratio Influence of curing conditions e- N [ 26W ()- M2 . 7 Cement-void ratio Cement-void ratio Influence of test conditions Fig. 3. Relationships between cement-void ratio and compressive strengths (2) Series II Fig. 4 shows various modes of failure after splitting tests of model concrete. In the case of model aggregate A having higher strength, there were no failure were observed. Concerning anisotropy tR was not more thants (Fig.
L'interet principal de l'equation 9 est que les proprietes de surface qui apparaissent dans w sont clairement decouplees des proprietes elastiques, de la geometrie du systeme etdes conditions de chargement qui interviennent dans le calcul de G, et des proprietes viscoelastiques qui sont dec rites par ~(aTV). Une fois que la fonction ~(aTV) est connue (par des experiences de pelage, par exemple) l'equation 9 permet de predire n'importe quel effet, tel que la cinetique de detachement a charge imposee, a deplacement impose ou encore a vitesse de deplacement imposee, pour n'importe quelle geometrie ou G est calculable.
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.)