Fergana Polytechnic institute faculty of construction student of group e97-21 Kamolov Sardorbek’s in construction materials prepared presentation

Fergana Polytechnic institute faculty of construction student of group e97-21 Kamolov Sardorbek’s in construction materials prepared presentation

Theme : Basic properties of building materials

Theme : Basic properties of building materials

Plan :

1.Properties of Building Materials

2.Chemical Properties of Building Materials

3. Fire Resistance of Building Materials

1.Building materials or construction materials are the major requirement in this modern age of technology. There are many types of building materials used for different construction works. For a material to be considered as building material, it should have required engineering properties suitable for construction works. These properties of building materials are responsible for its quality and capacity and helps to decide applications of these material.

1.Building materials or construction materials are the major requirement in this modern age of technology. There are many types of building materials used for different construction works. For a material to be considered as building material, it should have required engineering properties suitable for construction works. These properties of building materials are responsible for its quality and capacity and helps to decide applications of these material.

Such properties of building materials are categorized as follows.

Such properties of building materials are categorized as follows.

• Physical properties
• Mechanical properties
• Chemical properties
• Electrical properties
• Magnetic properties
• Thermal properties

2.Chemical Properties of Building Materials

2.Chemical Properties of Building Materials

The properties of materials against the chemical actions or chemical combinations are termed as chemical properties. And they are

• Chemical resistance
• Corrosion resistance

Chemical Resistance of Building Materials

The ability of a construction materials to resist the effects by chemicals like acids, salts and alkalis is known as chemical resistance. Underground installations, constructions near sea etc. should be built with great chemical resistance.

Corrosion Resistance

Corrosion Resistance

Formation of rust (iron oxide) in metals, when they are subjected to atmosphere is called as corrosion. So, the metals should be corrosive resistant. To increase the corrosion resistance proper measures should be considered. Otherwise it will damage the whole structure.

Electrical Properties of Building Materials

Electrical Properties of Building Materials

The properties of a material to conduct or to resist electricity through them are electrical properties of material. For example, wood have great electric resistance and stainless steel is a good conductor of electricity.

Magnetic Properties of Building Materials

The magnetic properties of materials like permeability, hysteresis etc. are required in the case of generators etc. iron is magnetic material and aluminum is non-magnetic material.

3.The ability to withstand against fire without changing its shape and other properties. Fire resistance of a material is tested by the combined actions of water and fire. Fireproof materials should provide more safety in case of fire.

3.The ability to withstand against fire without changing its shape and other properties. Fire resistance of a material is tested by the combined actions of water and fire. Fireproof materials should provide more safety in case of fire.

Frost Resistance

Frost Resistance

The ability of a material to resist freezing or thawing is called frost resistance. It is depends upon the density and bulk density of material. Denser materials will have more frost resistance. Moist material have low frost resistance and they lose their strength in freezing and become brittle.

Weathering Resistance

Weathering Resistance

The property of a material to withstand against all atmospheric actions without losing its strength and shape. Weathering effects the durability of material. For example corrosion occurs in iron due to weathering. To resist this paint layer is provided.

Spalling Resistance

The ability of a material to undergo certain number of cycles of sharp temperature variations without failing is known as spalling resistance. It is the dependent of coefficient of linear expansion.