Volume 1, Issue 2, September 2013, Page: 68-73
Design of Very High Performance Concretes Using Local Aggregates
BELAOURA Mebarek, Graduate School of Publics Works (ENSTP); 1Rue Sidi Garidi Vieux Kouba Algiers Algeria
OUDJIT Mohamed Nadjib, Faculty of Civil Engineering, University of Sciences and technology Houari Boumediene (USTHB) Bab Ezzouar Algiers Algeria
BALI Abdelrahim, Civil Engineering departments, Polytechnic Graduate School (ENSP), El Harrach Algiers Algeria
Received: Jul. 22, 2013;       Published: Aug. 30, 2013
DOI: 10.11648/j.ajce.20130102.14      View  3464      Downloads  265
Abstract
In recent years, appeared very high performance concretes which are the result of a more and more scientific rationalization. The use of superplasticizers, and more recently of ultrafine particles such as silica fume, has significantly minimized the amount of mixing water in concrete while improving workability. Owing to this water reduction (and thus the w/c ratio), the mechanical strength of such concretes has considerably increased. The compressive strength may exceed 80 MPa. Therefore, their use is very promising from an economic point of view and quality of civil engineering and hydraulics works. The aim of this study is to formulate a VHPC using local materials. The design approach used is the grout method. The obtained results show a clear improvement in the mechanical performance of concrete, resulting in a sufficient compressive strength to allow formwork removal at 24 h, an acceptable tensile strength and shrinkage lower than that obtained in conventional concrete.
Keywords
Very High Performance Concrete, Usual Concrete, Local Aggregates, Superplasticizers, Design, Mechanical Behavior
To cite this article
BELAOURA Mebarek, OUDJIT Mohamed Nadjib, BALI Abdelrahim, Design of Very High Performance Concretes Using Local Aggregates, American Journal of Civil Engineering. Vol. 1, No. 2, 2013, pp. 68-73. doi: 10.11648/j.ajce.20130102.14
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