The quality and durability of construction works depends on the construction materials used. Their use is due to a number of physical properties. Materials for different categories and the conditions of the construction must meet certain construction and technical requirements. Do you know about such parameters as durability, fire resistance and water resistance? How to use the knowledge about the physical properties, it is possible to use materials that meet the standards and rules of construction work? Check your knowledge to help a few questions about the test material properties.
What do you know about the physical properties of building materials? Test
1/The porosity of the material eto
degree of filling of the volume of pores
degree of filling voids volume
the number of pores in the material
2/Water absorption is -
ability of a material to absorb and retain water
material's ability to absorb water vapor
ability of the material to give the water on drying
3/Frost resistance is -
ability of water-saturated material to withstand repeated freezing and thawing without any signs of fracture
the material's ability to withstand low temperatures
the material's ability to withstand and not to miss the low temperatures
4/The heat capacity of this-
property of a material to pass heat through its thickness
material property of absorbing heat when heated
material's ability to withstand high temperatures
5/What materials have lower thermal conductivity -
closed small pores
with communicating pores
closed large pores
6/The thermal conductivity of the material is -
property of a material to pass heat through its thickness
material property of absorbing heat when heated
ability of a material to retain heat
7/Fire resistance is -
property of a material to withstand prolonged exposure to high temperatures without deformation and without melting
property of a material to withstand high temperatures in the fire
the material's ability to withstand a certain number of cycles of rapid thermal changes
8/Refractory materials to withstand prolonged exposure to temperatures:
1350-1580 degrees
1580 degrees and above
to 1350 degrees
9/Anticorrosion it -
material property does not deteriorate from exposure to external physical, chemical and biological factors
ability of the material does not react to gases
ability of the material does not dissolve in the fluids-solvents
10/Acid resistance this-
property of a material to maintain its structure when subjected to acid
property of a material to retain its structure under the action of alkalis
svoysvo material to maintain its structure without dissolving in the oil and gasoline
11/Prochnost- this:
material's ability to resist fracture under the effect of stresses arising from the load
ability of a material to resist the penetration of a solid in it
ability of the material is not destroyed at the joint action of abrasion and impact
12/Elastic material is -
properties of materials to restore its original shape and size after removal of the load
material property change its shape under load without cracking
materials to resist impact property
13/Technological properties of the material is -
ability materials be processed at manufacturing therefrom parts
the ability of materials to change their physical properties
the ability of materials to change their mechanical properties
14/To one of the mechanical properties relates
hardness
water absorption
acid resistance
15/To one of the physical properties include
absorbability
wear
Anti-corrosion
