Title:
Engineering Properties of Concrete Composite Materials Incorporating Fly Ash and Steel Fibres
Author(s):
R.N. Swamy, S.A.R. Ali,
and D.D. Theodorakopoulos
Publication:
Symposium Paper
Volume:
79
Issue:
Appears on pages(s):
559-588
Keywords:
admixtures; compressive strength; fiber reinforced
concretes; flexural strength; fly ash; lightweight aggregates;
load-deflection curve; metal fibers; plasticizers; shrinkage;
water-reducing agents; workability.
DOI:
10.14359/6712
Date:
5/1/1983
Abstract:
energy safly ash of all concre structural Three major factors, namely ings, and inherent technical controlled quality and compo te construction. This paper quality containing fly ash, environment protection, advantages, demand that sition be incorporated shows that concrete of steel fibres, normal in weight or lightweight aggregates and a plasticizing/water-reducing admixture or a superplasticizer can be designed to produce cohesive and workable mixes that enable easy transportation, pumping f compaction and finishing of the material. It is also shown that such mixes can be easily and satisfactorily vibrated into place in structural members with bar reinforcement and thin sections. Mixes designed by partial but direct replacement of 30% by weight of cement can have early strength and elasticity properties comparable to concrete without fly ash, and exhibit structural behaviour similar to normal concrete. Extensive data are presented to demonstrate the applicability of these materials in practice.