NDLI: Influence of chemical admixture on the properties of porous and draining cement concrete

Content Provider	Springer Nature Link
Author	Ndjountché Njiki, G. Ambroise, J. Péra, J.
Copyright Year	2000
Abstract	Parmi les technologies alternatives à l’assainissement urbain, les chaussées poreuses occupent une place prépondérante. Cependant, le béton de ciment poreux et drainant, à cause de sa mauvaise tenue mécanique est très peu utilisé comme couche de roulement dans la construction des chaussées poreuses urbaines (C.P.U.).Cette étude montre qu’en s’intéressant aux interactions entre les propriétés de la matrice de ciment et de celles du béton, on met en évidence les variables dont dépendent la tenue mécanique du béton de ciment poreux.La recherche des valeurs optimales pour ces variables va nous conduire au choix: d’un granulat silico-calcaire comme squelette du béton d’un liant pouzzolanique comme matrice de ciment et surtout d’un adjuvant approprié afin de mettre au point une formulation de béton de ciment poreux et drainant utilisable en couche de roulement de chaussée. Porous road surfaces are of primary importance amongst the various alternative technologies for urban drainage. However, porous cement concrete, due to its bad mechanical behaviour, presents low interest as urban paving surface material in road construction.This paper shows that when interactions between the properties of binder and those of concrete are investigated, all the variables upon which the mechanical behaviour of porous concrete depends are pointed out.The optimisation of these variables allows the following choices: a silico-calcareous aggregate; a pozzolanic binder; an appropriate chemical admixture in order to design a porous and draining cement concrete which could be used as a road pavement layer.
Starting Page	647
Ending Page	654
Page Count	8
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	33
Issue Number	10
e-ISSN	18716873
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2000-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Theoretical and Applied Mechanics Structural Mechanics Mechanical Engineering Operating Procedures, Materials Treatment Civil Engineering Building Materials
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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