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Factors considered for selection of eco-friendly materials
Factors to be considered for selection eco-friendly materials Nowadays the construction industry and architectural group are trying to construct an eco-friendly building using eco-friendly materials. This will load to preserve and protect important resources are water, land,
Advantages and disadvantages of structural glazing
Advantages Use of glass in construction work adds beauty to the building. Its use fulfills the architectural view for the external decoration and beauty. Using glass in interior of the building saves the space inside the building.
Uses of stones
Broken stones and chips are used for foundation, roofs, and floors of the building and as road metal and railway ballast. Stones blocks are mainly used in walls, foundation, and ornamental facial work. Quartzite is used for
Uses of sand
Sand is used in cement mortar, lime mortar for stone masonry, bricks masonry. Sand is used in plan cement concrete, reinforced cement concrete, precast concrete, prestressed concrete Coarse sand is used for face plaster on external
What is sand as a construction material
It is a form of silica, which may be siliceous, argillaceous according to the composition. It is formed by decomposition of sandstone due to various weathering effects. Sand obtained from pits, shores, river bed, the seabed is
Types of steel reinforcement
Based on physical and mechanical properties, the following three types reinforcement is mainly used in reinforced concrete construction. Mild steel Mild steel is used structure and non-structure steel in the form of various sections like I-section, channel,
Use of different structural steel sections
Following are the use of different structural steel sections such as : Steel bars Bars are the common form used in building construction. Bars may be round or square in cross-section. Rounds bars Rounds bars are available
Properties of coarse aggregate
There are properties of coarse aggregate such as : It should be clean, dense and cubical in shape. It should be free from silt, clay and coal residues. It should not contain any organic and other admixtures.
Classification of aggregates
Aggregates are classified as Fine aggregate Coarse aggregate Fine aggregate The material which passes through I.S. sieve No.480 [4.75mm] and retained on I.S. sieve No. 5 [0.05mm] is considered as fine aggregate e.g. natural sand, surkhi etc.
Characteristics of DC generators
Following are three important characteristics of dc generators : No load saturation characteristics (Eg Vs I f) It is also called open circuit characteristics or magnetic characteristics. It gives the relationship between no load generated emf in