Building Demolition Products as a Secondary Raw Material for High-Strength Concrete

DOI

10.2991/isees-19.2019.93How to use a DOI?

Keywords

building demolition products; concrete broken materials; crushed bricks; ecology; recycling; secondary aggregate; fine ground filler; filled binders; concrete; persistence of concrete mixtures; high strength.

Abstract

The article presents an analysis of the experience of using the products of buildings and structures demolition, the technology of recycling secondary raw materials to produce secondary raw materials for concrete. The results of tests of heavy high-strength concrete (HSC) on the base of filled binders (FB) obtained using the products of processing of concrete broken materials and crushed bricks are given. Using local natural and man- made raw materials, optimal formulations of highly mobile concrete mixes with a grade of P5 cone sediment and persistence of more than 8 hours designed to obtain HSC classes of compressive strength to B60-B80 with unique performance properties. The physical- mechanical characteristics of HSC of local natural and man- made raw materials of classes B30-B80 are studied and the growth in time of their strength characteristics are evaluated depending on the type of binder. The physical-mechanical characteristics of HSC based on natural and man-caused raw classes B30-B80 and held at the time of growth assessment of their strength properties depending on the type of binder. The coefficient of prism strength for concrete of FB is in the range of 0.82-0.86, when for concrete of a traditionally used PC, this indicator is below 0.78.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - S-A.Yu. Murtazaev
AU  - M.S. Saidumov
AU  - A.Kh. Alaskhanov
AU  - T.S-A. Murtazaeva
AU  - M.R. Khadzhiev
PY  - 2019/08
DA  - 2019/08
TI  - Building Demolition Products as a Secondary Raw Material for High-Strength Concrete
BT  - Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)
PB  - Atlantis Press
SP  - 348
EP  - 352
SN  - 2590-3217
UR  - https://doi.org/10.2991/isees-19.2019.93
DO  - 10.2991/isees-19.2019.93
ID  - Murtazaev2019/08
ER  -