In this study, the feasibility of using steel fibers and shavings in roller-compacted concrete containing coarse basic oxygen furnace slag aggregate was investigated order to improve its mechanical properties produce an electrically conductive environment-friendly concrete. For purpose, various samples 0.4, 0.7, 1% fiber 3, 5, 7% shaving were fabricated. The compressive strength, indirect tensi...

In this paper, we consider the optimization of temperature conditions and thermo-stressed state a concrete gravity dam made extra lean roller-compacted constructed in climate corresponding to Pskem HPP Republic Uzbekistan. We show need take into account effect solar radiation on heating mass during layer-by-layer construction dam. A methodology was used estimate radiation, considering cloud cov...

In this paper, supercritical carbonation tests of concrete specimens with different water-to-cement ratios are carried out. the test, thickness interfacial transition zone (ITZ) is determined by distribution Ca/Si ratio across interface between coarse aggregate and cement paste. The microhardness distribution, microstructure porosity ITZ before after analyzed. A geometrical physical model consi...

The construction industry generates a considerable amount of waste. Faced with this undesirable situation, the ready-mix concrete sector, in particular, has invested energy and resources into reusing its own waste in its production process as it works towards the goal of more sustainable construction. This study examines the feasibility of incorporating two types of concrete waste, which curren...

The susceptibility of structural concrete to early-age cracking depends on material composition, methods of processing, structural boundary conditions, and a variety of environmental factors. Computational modeling offers a means for identifying primary factors and strategies for reducing cracking potential. Herein, lattice models are shown to be adept at simulating the thermal-hygral-mechanica...

This paper presents the residual mechanical properties of concrete made with crushed bricks and clay roof tile aggregates after exposure to high temperatures. One referent mixture and eight mixtures with different percentages of replacement of natural aggregate by crushed bricks and roof tiles are experimentally tested. The properties of the concrete were measured before and after exposure to 2...