A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Architectural Concrete Versus White Stone: A New Approach to Restoring Historical Heritage
The Russian culture has a rich history and strong traditions, especially when it comes to ancient white-stone architecture. Usually the term “white stone” stands for light carboniferous limestone. White stone was one of the basic building materials in Old Russia and was of great historic importance in the 11th–15th cc. Unfortunately, natural white stone resources are gradually being depleted. Modern concrete technology is able to imitate and replace to the full the natural stones by artificial composites that are not inferior to them in their properties. One of the most promising areas of high-performance concrete (HPC) concept implementation is manufacture of architectural concrete with improved decorative properties based on mechanically activated composite binders and effective admixtures. Architectural concrete frost resistance reaches 300–600 freezing–thawing cycles and more; the open integral porosity does not exceed 2–4% vol. The values of the prism strength factor and the initial tangent modulus of elasticity of modified concretes meet or exceed regulatory requirements. Durability of architectural concrete may be additionally improved by impregnation with special organic silicate compounds. Thereby an optimum combination of construction and technical characteristics of concretes and decorative properties of products is achieved that should considerably expand the field of architectural concrete application, solve the problems of historical heritage preservation, and on the whole facilitate the growth of its social significance and attractiveness. Some of the most valuable of the white-stone architecture objects reconstructed in Russia with use of architectural concrete in the last decade are presented.
Architectural Concrete Versus White Stone: A New Approach to Restoring Historical Heritage
The Russian culture has a rich history and strong traditions, especially when it comes to ancient white-stone architecture. Usually the term “white stone” stands for light carboniferous limestone. White stone was one of the basic building materials in Old Russia and was of great historic importance in the 11th–15th cc. Unfortunately, natural white stone resources are gradually being depleted. Modern concrete technology is able to imitate and replace to the full the natural stones by artificial composites that are not inferior to them in their properties. One of the most promising areas of high-performance concrete (HPC) concept implementation is manufacture of architectural concrete with improved decorative properties based on mechanically activated composite binders and effective admixtures. Architectural concrete frost resistance reaches 300–600 freezing–thawing cycles and more; the open integral porosity does not exceed 2–4% vol. The values of the prism strength factor and the initial tangent modulus of elasticity of modified concretes meet or exceed regulatory requirements. Durability of architectural concrete may be additionally improved by impregnation with special organic silicate compounds. Thereby an optimum combination of construction and technical characteristics of concretes and decorative properties of products is achieved that should considerably expand the field of architectural concrete application, solve the problems of historical heritage preservation, and on the whole facilitate the growth of its social significance and attractiveness. Some of the most valuable of the white-stone architecture objects reconstructed in Russia with use of architectural concrete in the last decade are presented.
Architectural Concrete Versus White Stone: A New Approach to Restoring Historical Heritage
RILEM Bookseries
Pereira, Eduardo B. (editor) / Barros, Joaquim A. O. (editor) / Figueiredo, Fabio P. (editor) / Falikman, Vyacheslav R. (author) / Deniskin, Vyacheslav V. (author)
RILEM Spring Convention and Conference ; 2020 ; Guimarães, Portugal
Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC2020) ; Chapter: 9 ; 91-103
RILEM Bookseries ; 32
2021-08-01
13 pages
Article/Chapter (Book)
Electronic Resource
English
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