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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: High-Performance Concrete Mixture Proportioning
Author(s): K.G. Sobolev and S.V. Soboleva
Publication: Special Publication
Appears on pages(s): 421-438
Keywords: compressive strength; high-performance concrete; mix proportioning;
silica fume; slump; superplasticizers
Abstract:The report generalizes the results of wide range investigations of silica fume based superplasticized high- performance concrete. The rules of the strength and rheological behavior of cement silica fume - super-plasticizer systems are discussed. Usage of optimal superplasticizer to silica fume ratio (as 1: 10) allows to obtain ultra-dense packing for super fluid cement paste and provides high-performance properties of concrete. The mathematical models of fresh and hardened high-performance concrete based on processing and computerizing empirical results are created. The models provide a calculation of W/C required for the target compressive strength level up to 130 MPa as well as mixing water quantity for planning slump of 0 - 200 mm. For modelling purpose, concrete slump is considered as a function of aggregates proportioning, and volume and fluidity of cement paste. This approach became a basis of proposed high- performance concrete mixture proportioning method. Further, developing and integration of the mathematical models created a new computer program for high-performance concrete mixture proportioning. The program provides a solution for wide range design and optimization projects. The results of the computer program estimation can be easily transferred to any 3- dimensional plotting or data base program for consequent processing and performing.
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