Influence of the geometrical values of hollowness on the physicotechnical characteristics of the concrete vibropressed wall stones

Vatin, N. I.; Pestryakov, I. I.; Kiski, S. S.; Teplova, Z. S.
July 2014
Applied Mechanics & Materials;2014, Issue 584-586, p1381
Academic Journal
In this research article advantages and disadvantages of hollow wall stones (SKTs) were considered, which now are widespread at frame and monolithic construction. Also results of laboratory researches are presented in the article. Definition technique of three physicomechanical characteristics is visually shown: thermal conductivity, sound eliminate, vapor permeability. Separate sambles and fragments of stone layings were made specially for carrying out experiment. Two types of wall stones were compared: with slot-hole and rectangular emptiness. Emptiness differ geometrical parameters therefore they substantially define physicomechanical characteristics.


Related Articles

  • Steady heat conduction-based thermal conductivity measurement of single walled carbon nanotubes thin film using a micropipette thermal sensor. Shrestha, R.; Lee, K. M.; Chang, W. S.; Kim, D. S.; Rhee, G. H.; Choi, T. Y. // Review of Scientific Instruments;Mar2013, Vol. 84 Issue 3, p034901 

    In this paper, we describe the thermal conductivity measurement of single-walled carbon nanotubes thin film using a laser point source-based steady state heat conduction method. A high precision micropipette thermal sensor fabricated with a sensing tip size varying from 2 μm to 5 μm and...

  • Suppression of thermal conductivity in InxGa1-xN alloys by nanometer-scale disorder. Tong, T.; Fu, D.; Levander, A. X.; Schaff, W. J.; Pantha, B. N.; Lu, N.; Liu, B.; Ferguson, I.; Zhang, R.; Lin, J. Y.; Jiang, H. X.; Wu, J.; Cahill, David G. // Applied Physics Letters;3/25/2013, Vol. 102 Issue 12, p121906 

    We have systematically measured the room-temperature thermal conductivity of epitaxial layers of InxGa1-xN alloys with 15 different Indium compositions ranging from 0.08 to 0.98 by time-domain thermoreflectance method. The data are compared to the estimates of the strength of phonon scattering...

  • An atomistic study of thermal conductance across a metal-graphene nanoribbon interface. Huang, Zhen; Fisher, Timothy; Murthy, Jayathi // Journal of Applied Physics;Apr2011, Vol. 109 Issue 7, p074305 

    This paper presents an atomistic Green's function study of phonon transport through a heterogeneous interface between bulk TiC substrates and graphene nanoribbons (GNRs). The force constants that govern the lattice dynamical equations are obtained from first-principles density functional theory...

  • THERMAL PROPERTIES OF SOME PARTICULATE COMPOSITES. Circiumaru, A.; Andrei, G.; Dima, D.; Birsan, I. G.; Bria, V. // Annals of DAAAM & Proceedings;2010, p69 

    Among composites, the polymer matrix ones are the cheapest and the easiest to form but they show major disadvantages such as poor electrical and thermal conductivity, low fire resistance etc. In the case of any composite, some of the properties may be designed, some of them may be obtained by...

  • Thermal conductivity of deformed carbon nanotubes. Zhong, Wei-Rong; Zhang, Mao-Ping; Zheng, Dong-Qin; Ai, Bao-Quan // Journal of Applied Physics;Apr2011, Vol. 109 Issue 7, p074317 

    We investigate the thermal conductivity of four types of deformed carbon nanotubes by using the nonequilibrium molecular dynamics method. It is reported that various deformations have different influences on the thermal properties of carbon nanotubes. For bending carbon nanotubes, the thermal...

  • Elephant ivory: A low thermal conductivity, high strength nanocomposite. Jakubinek, Michael B.; Samarasekera, Champika J.; White, Mary Anne // Journal of Materials Research;Jan2006, Vol. 21 Issue 1, p287 

    There has been much recent interest in heat transport in nanostructures, and also in the structure, properties, and growth of biological materials. Here we present measurements of thermal properties of a nanostructured biomineral, ivory. The room-temperature thermal conductivity of ivory is...

  • 1ω, 2ω, and 3ω methods for measurements of thermal properties. Dames, Chris; Gang Chen // Review of Scientific Instruments;Dec2005, Vol. 76 Issue 12, p124902 

    3ω methods are commonly used to measure the thermal conductivity of a substrate adjacent to a strip heater or the thermal conductivity and specific heat of a suspended wire. Here we consider the general case of a line heater that is also used to sense temperature. Analysis of all harmonics...

  • Thermal conductivity of B–C–N and BN nanotubes. C. W. Chang; Wei-Qiang Han; Zettl, A. // Applied Physics Letters;4/25/2005, Vol. 86 Issue 17, p173102 

    We have measured the temperature-dependent thermal conductivity κ(T) of boron–carbon–nitride (B–C–N) and boron nitride (BN) nanotube mats between room temperature and 20 K. For both materials, κ(T) increases with increasing temperature, with no sign of...

  • Effects of phase-lags in a thermoviscoelastic orthotropic continuum with a cylindrical hole and variable thermal conductivity. ZENKOUR, A. M.; ABOUELREGAL, A. E. // Archives of Mechanics;2015, Vol. 67 Issue 6, p457 

    THIS ARTICLE PRESENTS AN ANALYTICAL SOLUTION for the effect of phase-lags on a generalized plane strain thermoviscoelastic orthotropic medium with a cylindrical cavity subjected to a thermal shock from varying heat. It is assumed that the cylindrical cavity is made of Kelvin-Vogt type material....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics