Test of bricks

 

Types of test on bricks for building construction works

• Various types of test on Brick are conduct to check the qualities of bricks for construction purpose tests on bricks are conducted at construction site as well as in laboratory bricks are oldest and important construction materials because of their durability reliability strength and low cost to produce good quality of structure good quality materials are required to decide the quality of the materials some test are to be conducted on BRICS datastage which are required to find the suitability of bricks for construction purpose or discussed below 

Types of tests on bricks for construction purpose

 

Flowing tests are conducted on bricks to determine its suitability for construction work

 

• Absorption test                                                  
• Crushing strength test                                      
• Hardness test                                                    
• Shape and size                                                  
• Colour test                                                         
• Soundness test                                                 
• Structure of brick                                             
• Presence of soluble salts efforescence       

Absorption test 

Absorption test is conducted on break to find out the amount of moisture content absorbed buy break under extreme condition in this test sample dry bricks are taken and weighed after weighing these breaks are placed in water with full in immersing  for a period of 24 hours then wake the weight brick and note down its value the difference between dry and wet bricks will give the amount of water absorption for a good quality brick and the amount of water at the absorptions should not accessed 20% of weight of dry brick

Crushing strength or compressive strength test on brick

Crushing strength of bricks is determined by placing breaks in compressive testing machine after placing the break in comparison testing machine apply load on it until break bricks note down the value of failure lord and find out the crushing strength value of Tariq minimum crushing strength of brick is 3.5 50 Newton mm square and then 3 point 15 mm square then it is not useful for construction purpose

Hardness test on bricks

A good brick should resist scratches against safe things so for this test a shape tool or finger nail is used to make scratch on break if there is no scratch comparison on break then it is said to be hard brick

Shape and size test on bricks

 Shape and size of bricks are very important consideration all brakes used for construction should be of same size the shape of bricks should be purely rectangular with shape age standard brick size consist length width and height is 90 cm ×9cm×9cm

To perform this test select 20 bricks randomly from break group and stack them along it is length width and height and compare so if all breaks similar size then they are qualified for construction work

 Colour test of bricks

A good break should process bright and uniform colour throughout it is body

                              Soundness test of bricks

Soundness test of bricks show the nature of brakes against should an impact in this test two bricks are choice randomly and stroke with one another than sound produced should be clear Bell ringing sound and break should not break then it is said to be good bricks

                          Structure of bricks

To now the structure of BRICS pick one break randomly from the group and break it observer the inner portion of brick clearly it should be free from lumps and homogeneous. 

                        Efforescence test on bricks 

A good quality brick should not contain any  soluble salts in it if soluble salts are there then it will cause efflorescence on brick surface  

To now the persons of soluble salts in a brick placed it in a water bath for 24 hours and dry it in shade . After driving observe the brick surface truly if there is any white or grey colour deposit then it contains soluble Salts and not useful for construction     

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