Construction

Fine Sand /classification of sand

Fine Sand

Fine sand should consist of natural sand or crushed stone sand. It should be hard, durable, clean and be free from organic matter etc.Fine Sand should not contain any appreciable amount of clay balls and harmful impurities such as alkalis, salts, coal, decayed vegetation etc. The silt contents should not exceed 4%.

Classification of Sand 

Classification of sand is given below.   
1. Fine sand = 0.075 to O.425 MM
2. Medium sand = 0.425 to 2 MM
3. Coarse Sand = 2.0 to 4.75 MM

Various Types of Sand
There are following three types of sand.
1. Pit Sand
2. River Sand
3. Sea Sand
 
Pit Sand (Coarse Sand or Badarpur)  
Pit sand is obtained by forming pits into soil from ‘Quarries’. It consists of sharp angular grains which are free from salts. It is coarse sand which is usually used in concreting and has reddish yellow color normally.
 
River Sand
This sand is obtained from banks or beds of rivers. River sand is fine and consists of fine rounded grains. The color of river sand is almost white and Grayish. River sand is usually available in clean condition and is used for plastering. 
 
Sea Sand
This sand is obtained from sea shores. It has fine rounded grains and light brown color. Sea sand contains salts which attract moisture from atmosphere. Such absorption causes dampness and disintegration of work. Sea sand also retards setting action of cement. Due to these reasons, sea sand is generally avoided for engineering purposes. It is used only as a local material for nonstructural purposes.


Sand for Construction Works
Different construction works require different standards of sand for construction.
 
• Brick Works: finest modulus of fine sand should be 1.2 to 1.5 and silt contents should not be more than 4%.

• Plastering Works: finest modulus of fine sand should not be less than 1.5 and silt contents should not be more than 4%.

• Concreting Works: coarse sand should be used with finest modulus 2.5 to 3.5 and silt contents should not be more than 4%.


NOTE

  •  If the above quality of sand is not available due to any reason, the blending of sand should be done by adding more coarse sand to achieve the required finest modulus.
  •  Washed sand should be used at site for getting more strength in construction work. 

Bulking of Sand
Due to moisture in each particle of sand, sand gets a coating of water due to surface tension which keeps the particles apart. This causes an increment in volume of sand known as Bulking. 

 

The 'Bulking' is shown in the following table

Moisture content (% by Weight)

Bulking (% by volume)

          2         15 %
          3         20 %
          4         25 %
          5         30 %

 

Checking the Quality of Sand
The following methods are used to check the quality of sand. 

  •  To check the quality of fine aggregates or sand; put some quantity of sand in a glass of water. Then it is vigorously shaken and allowed to settle. If the clay is present in sand, its distinct layer is formed at the top of sand.
  • To detect the presence of organic impurities in sand, a solution of sodium hydroxide or caustic soda is added to sand and stirred. If the color of solution changes into brown, it shows presence of impurities
;
Kota stone flooring is a subtle blend of grandeur and luxury giving the interior and exterior a gorgeous look.......
To get maximum ventilation and natural light in your house, make sure the building is properly oriented. Orientation of building saves energy and provides comfortable living as well. This article tells you about various factors and benefits of building orientation.
Preview some of the most impressive pictures of kitchen from GharExpert Gallery.
A solid roof on building is very important for everybody living in the house. The roof should be constructed in a way that assures you great safety. Here are given details about different types of roofing.
Frames of doors and windows are most important parts of your doors and windows. They are available in different size, height, width and shapes. Frames hold locks and hinges and support door and windows to shut and open easily. Here is what you need to know about different doors and windows frames.
Different steel bars are recommended for their relative tensile stresses.Steel bars are major components of construction.Here is what you need to know about steel bars (Sariya).
Brahmasthan is a powerful zone of the house. It should have open space for flow of energy in the house. The positive energy is very useful for living beings of the occupants of the house.
Brick work is an important part of construction work done with the help of bricks and cement mortar. It is done with different quality of bricks with different ratios of cement mortar according to the requirement.
Living room or Drawing room should be located in east or north direction. The ideal location of a living room depends on plot facing.
Are you remodeling your bathroom? Bathroom shower doors make your bathroom a style icon. Read the following article that will help you select the bathroom shower door that will exactly suit your bathroom.
Without knowing perfect mixture of cement and sand you can not achieve your goal.
Manufacturing date, grade and type play vital role in purchasing right cement and there should be no lumps in it.
First Class Bricks must be homogeneous in texture without showing appreciable sign of efflorescence.
A coupler connects the two pipes to each other. If the material and size of the pipe are not the same,it is called a 'reducing coupler'.
Fine sand should consist of natural sand or crushed stone sand. It should be hard, durable, clean and be free from organic matter etc. and should not contain any appreciable amount of clay balls and harmful impurities such as alkalis, salts, coal, decayed vegetation etc.
Bricks provides several choices for quality. Select a type according to your need.
The beading is of plain variety with square edges.
Window Grills are required for the safety of homes. Window glasses should be well covered with grills. Here are various designs of grills which provide safety to window glasses.
Cracks can happen due to foundation movements and settlements of building, thermal movements, chemical reactions, elastic deformations and shrinkage etc. in buildings. They can damage plaster of walls, ceilings and destroy the beauty of the structure also. Let’s know their reasons in detail and get preventive measures.
To minimize the danger of blistering, risk of steam formation etc. Storage temperature of 60 degree C is recommended. This may be increased up to 65 degree C when soft water is used and the storage capacity is limited.

SAND
SAND
sand filling
sand filling
Sand + Jelly + Cement
Sand + Jelly + Cement
Coarse Sand
Coarse Sand
Sanded and Stained Wood Finishes Almirah
Sanded and Stained Wood Finishes Almirah
fine wooden art for door
fine wooden art for door
Arihant Fine Interiors
Arihant Fine Interiors
Arihant Fine Interiors
Arihant Fine Interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant fine interiors
Arihant Fine Interiors
Arihant Fine Interiors
Arihant Fine Interiors
Arihant Fine Interiors
FINE
FINE
fine living room
fine living room
fine
fine
fine interior design
fine interior design
house design in sand
house design in sand
Fine dining
Fine dining
fine window design
fine window design
Pain scrapper
Pain scrapper
Desert - View
Desert - View
bed
bed
Desert View
Desert View

Copyright 2007- GharExpert.com All rights reserved.