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1 sty 2016 · In a hardened concrete, capillary water is the medium used by aggressive ions to penetrate concrete by percolation and osmotic pressure (differences in ionic concentrations). Some ions present in the interstitial solution of concrete can also be leached out by osmotic pressure.
30 paź 2016 · Results show that strength and failure modes are remarkably affected by water content and strain rate. Under water pressure, the strength of concrete increases nonlinearly as strain rate rises, and the strain rate sensitivity of concrete increases with increasing water content.
1 lip 2011 · The powerful and pervasive influence of water on the performance of Portland cement concrete begins with the removal of water from either moist or wet raw cement feed and ends with application of curing water.
10 lip 2023 · This book section aims to investigate the effects of water penetration on concrete strength and present an overview of the prevention methods that can be employed to mitigate these effects.
15 sty 2014 · Understanding the complex interactions of the building pressure field - the air pressure regime within and surrounding the building - helps explain the increasingly common failures related to: indoor air quality, sick building syndrome, building related illness;
Because of the coupling effect of load and pressure, water has a special impact on the strength and deformation of concrete. Meanwhile, harmful ions usually react with the cement matrix as pressure water seepages into concrete, resulting in the reduction of concrete durability.
1 sie 2022 · Starting from the internal water content of concrete, the existing research is combed, the influence of water content, water pressure, and loading rate on the static and dynamic...
