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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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 Binders with Reduced Autogenous Shrinkage on the Basis of Fine Cement
Author(s): V. Martschuk
Publication: Special Publication
Appears on pages(s): 183-198
Keywords: autogenous shrinkage; high-performance concretes; sili-ca
Abstract:Because of their low w/c, high-performance concretes has not only a high density but also a great tendency to chemical shrinkage deformation (autogenous shrinkage) as a result of self desiccation. The autogenous shrinkage increases if silica fume is added. Theoretical calculations show that the usual addition of silica fume leads to an increase in total porosity, and hence to a deterioration of the packing density of the binder mixture, while at the same time raising the specific surface area of the dry powder. On the other hand, replacement of cement by optimized fine cements improves the theoretical packing density in the binder, even though with a lower increase in the specific surface area. lnvestigations carried out on hardened cement paste made from fine cements have shown that this leads not only to higher density but also to lower autogenous shrinkage values.
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