Thermal Conductivity Of Marble

Cement concrete sand stone.

Thermal conductivity of marble.

The thermal conductivity normally found in tables is the value valid for normal room temperature. The thermal conductivity of the marble is more than the surface of the ground. The thermal conductivity of a material depends on its temperature density and moisture content. The ability of the material at which the heat is transferred is called thermal conductivity.

1 2 to 1 3 x 10 5. The thermal conductivity of a substance as defined as a heat flow per unit area per unit time when the temperature decreases by one degree in unit distance. This value will not differ much between 273 and 343 k 0 70 c. Thermal conductivity is a material property that describes ability to conduct heat thermal conductivity can be defined as the quantity of heat transmitted through a unit thickness of a material in a direction normal to a surface of unit area due to a unit temperature gradient under steady state conditions.

Generic limestone r is relatively pure polycrystaline calcite solidity is the quotient of the solid grain volume divided by the bulk volume and k is thermal conductivity in w m 1 k 1. It depends on several factors. A stone surround at a fireplace or cooktop between the heat source and a flammable outer material is an example where the conductivity of the stone should be carefully. The si unit of thermal conductivity is w mk.

0 9 to 1 2 x 10 5. Cement concrete quartzite. In the summer you feel cold when you touch marble. The marble dust 8 16 and 24 wt is initially mixed in the matrix material using magnetic stirrer thereafter the mixture is sonicated for 02 h.

Lowest thermal conductivity of any pure metal marble. The filler material marble dust md average particle size 10 μm thermal conductivity 2 07 w m k collected from local marble cutting industries of rajasthan india. There are certain applications where this heat transfer or thermal conductivity of a natural stone becomes an important factor in selecting the best material and design. Thermal properties of tile and marble noor zanizawati zainol.

Higher the thermal conductivity of the material more will be the heat transferred. Therefore the thermal energy will be more reflected by the surface of the marble.