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A review of the cement-aggregate bond

✍ Scribed by Leslie Struble; Jan Skalny; Sidney Mindess


Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
693 KB
Volume
10
Category
Article
ISSN
0008-8846

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✦ Synopsis


This paper reviews the basic nature of the cement-aggregate bond and its effects on concrete performance. The bond is a result of mechanical interlocking provided by epitaxic growth of cement hydration products on the aggregate surface and of chemical reactions between the cement paste and aggregate. The degree to which the bond results from each of these processes is not known. The effect of the bond on concrete performance is a subject of controversy; however, there seems to be a relationship between concrete strength and bond strength, and it is suggested that the quality of the bond affects concrete durability.

Ce papier passe en revue la nature fondamentale de la liaison ciment-granulats et ses effets sur les performances du b6ton. La liaison est due ~ un enchev~trement m6canique, cr66 par la croissance 4pitaxique des produits d'hydratation du ciment ~ la surface des granulats et par des r4actions chimiques entre la p~te de ciment et les granulats. Le degr4 d'influence de ces deux facteurs sur la liaison n'est pas connu. L'effet de la liaison sur le comportement du b4ton est un sujet de controverse; il semble cependant qu'il existe une relation entre la r4sistance du b4ton et la force de la liaison. On suppose que la qualit@ de la liaison influence la durabilit4 du b6ton.


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