In 2005, the Federal Lands Recreation Enhancement Act gave public land agencies discretion in the management of funds collected through recreation fees. However, this legislation is set to expire in 2015, which will lead to a reduction in available financial resources to maintain recreation services and to protect the environment. We use a unique dataset to analyze the impact of changes in fee ...

An experimental test was performed to study the bond behavior between steel rebar and concrete reinforced by polyvinyl alcohol (PVA) fibers. Twenty specimens were prepared subjected pull-out test. Four different fiber volume contents (0%, 0.2%, 0.4%, 0.6%) considered with strength grade of C35 designed in present study. The effects PVA fibers, diameter, cover depth on clarified. fibers mechanic...

Bar diameter is one of the basic factors affecting bond behavior, which still interest due to opposing opinions regarding its effect on behavior in pull-out test. This paper presents an experimental and numerical analysis ribbed reinforcing bar concrete. The aim was experimentally evaluate test perform simulations conducted experiments ABAQUS verify their convergence obtained results. used conc...

This article is a response to the state of art in monitoring cooling capacity quenching oils industrial practice. Very often, hardening shop requires report with data on process for particular oil. However, interpretation can be rather difficult. The main goal our work was compare various criteria used evaluating oils. Those which prove essential operation tempering plants would then introduced...

. The paper presents the results of development and implementation technology self-compacting heavy structural concrete concreting with its use largest foundation slab in Belarus (concrete volume ~9100 m3) a high-rise building at facility “Construction multifunctional complex Minsk within boundaries Filimonova Street – Avenue Nezavisimosty Makayonka Street”. research are shown, which ensured pr...

Beton, farklı özelliklerdeki malzemelerin birlikte kullanılmasıyla oluşturulan kompozit bir mühendislik malzemesidir. Bu kompoziti oluşturan her bileşenin fiziksel ve mekanik performans açısından önemli düzeyde etkileri bulunmaktadır. Betonun en bileşenlerinden tanesi de agregalar olup agregaların birim ağırlığı, iç yapısı, özelikleri, yüzey formu vb. gibi birçok özelliği betonun fiziksel, meka...