The minimum crushing / compressive strengths of burnt bricks tested flat-wise prescribed are: (i) Common building bricks—35 kg/sq. cm, (ii) Second class bricks—70 kg/sq. cm, (iii) First class bricks— 105 kg/sq. cm.
Aug 28, 2019· (ii) Second class bricks—70 kg/sq. cm, (iii) First class bricks— 105 kg/sq. cm. (iv) Crushing strength of bricks not less than 140 kg/sq. cm are graded as AA class. The strength of bricks decreases by about 25 per cent when soaked in water. Strength
Crushing strength of a first class brick should not be less than: A. 3.5 N/mm2: B. 7.0 N/mm2: C. 10.5 N/mm2: D. 14.0 N/mm2
Crushing strength of a first class brick should not be less than. A. 3.5 N/mm². B. 7.0 N/mm². C. 10.5 N/mm². D. 14.0 N/mm². Answer: Option C
The shapes of first class bricks in regular in edges, face, top, bottom. The shape should be according to standard brick size like 190 mm x 90 mm x 90 mm with adherence to BIS. The corners should be sharp, there should be no pores or cracks on the bricks. The water absorption capacity for the first class bricks should be under 20%. The crushing strength of first class bricks
crushing strength of 1st class brick srpccoin. Oct 15 2017 STRENGTH OF BRICKS The bricks which are commonly used should have a minimum compressive strength or crushing strength of 35 Nmm178; Second class bricks ie grade B bricks should have compressive strength not less than 7 Nmm178; First class bricks ie grade A bricks should have gt;gt;More
Aug 28, 2019· The minimum crushing / compressive strengths of burnt bricks tested flat-wise prescribed are: (i) Common building bricks— 35 kg /sq. cm, (ii) Second class bricks—70 kg/sq. cm, (iii) First class bricks— 105 kg /sq. cm.
Sep 05, 2017· Bricks should have a minimum crushing strength of 105 kg per square meter ( 1500 lbs per square inch). Filed Under: Civil Engineering Construction Reader Interactions
Crushing strength of a first class brick should not be less than a) 3.5 N/mm² b) 7.0 N/mm² c) 10.5 N/mm² d) 14.0 N/mm² BS EN 771-1 BS 3921 British Standard Specification for BS 3921 COMPRESSIVE STRENGTH The Compressive Strength of a brick should not be less than that stated by the manufacturer.
Type of Brick: Crushing Strength: 1. First class brick: 10.5 N/mm²: 2. 2nd class brick: 7 N/mm²: 3. 3rd class brick: 3.5 N/mm² . 1.12 Water Absorption Of Brick 1st Class Brick: not less than 15% by weight: 2nd Class Brick: not less than 20% by dry weight: 3rd Class Brick: 22% by dry weight . Note: Water Absorption for Building stones not
Dec 01, 2016· The crushing strength of the brick should not be less than 10 N/mm2. This limit varies with different Government organisations around the country. Uses: First class bricks are recommended for pointing, exposed face work in masonry structures, flooring and reinforced brick work.
The crushing strength of the brick should not be less than 10 N/mm 2. This limit varies with different Government organizations around the country. Uses: First class bricks are recommended for pointing, exposed face work in masonry structures, flooring and reinforced brick work.
Jan 12, 2019· Useful Properties of Bricks. Compressive Strength; Generally, bricks have high compressive strength in the range of 5.5 N / mm 2 to 140 N/mm 2.. If the crushing strength of the bricks is less than 3.5 N/mm 2 it must not be used. A field test about strength of the bricks is to fall the brick from a height of 1 meter and it must not break in to pieces.
Class Brick Crushing Strength . Compressive crushing strength of bricks the i common building bricks35 kgsq cm ii second class bricks70 kgsq cm iii first class bricks 105 kgsq cm iv crushing strength of bricks not less than 140 kgsq cm are graded as aa class the strength of bricks decreases by about 25 per cent when soaked in water. Read More
Nov 09, 2017· Brick Properties 1. Type: 1. First Class Brick: 2. Size: 2. 19 x 9 x 9 cm: 3. Crushing Strength
Crushing strength of a first class brick should not be less than a) 3.5 N/mm² b) 7.0 N/mm² c) 10.5 N/mm² d) 14.0 N/mm² BS EN 771-1 BS 3921 British Standard Specification for BS 3921 COMPRESSIVE STRENGTH The Compressive Strength of a brick should not be less than that stated by the manufacturer.
They have of the minimum crushing speed strength of 10.5N/mm2 Efflorescence presence is very little. These are characteristics of first class bricks. First class bricks are made from good earth which is free from saline deposits and are sand molded. You can identify the First class brick by following field tests and laboratory tests.
(x) The brick shall be classified accordingly on the basis of the (Co) obtained as above. Compressive Strength of Bricks. (i) Compressive Strength of first class brick is 105 kg/cm 2. (ii) Compressive Strength of 2nd class brick is 70 kg/cm 2. (iii) Compressive Strength of common building brick is 35 kg/cm 2. (iv) Compressive Strength of sun
The minimum crushing strength of second class brick should be 70 kg per sq cm. Specification of Third Class Bricks. These bricks are slightly under burnt or over burnt. They are not uniform in shape, size and edges. They shall not observe water more than 25% of their own dry weight after 24 hours, immersion in cold water.
The crushing strength of this type of bricks should be 105 kg/cm2. Read More: 6 Requirements of Good Quality Brick. 3 Most Important Properties of Brick. Second-Class Bricks: The quality of this type of bricks is a little bit less from first-class bricks. Such as these can be slightly over burned. The size and shape can slightly differ from the
Jul 14, 2019· Compressive Strength of Bricks Crushing strength of bricks Crushing strength of different different types of bricks Azlan Ahmad 2019-07-14T10:02:00-07:00 5.0 stars based on 35 reviews Compressive Strength of Bricks in kg/cm 2 first class brick is 105 kg/cm 2 Second class brick is 70 kg/cm 2 Third Class
Answer / banambar pradhan. BRICK GENERALLY 3 TYPES i.e 1st class brick ,2nd class brick and 3rd class brick. compressive strentgh of 1st class brick is 100kg/cm2 and compressive strength of 2nd
First Class Brick: The size is standard. The color of these bricks is uniform yellow or red. It is well burnt, regular texture, uniform shape. The absorption capacity is less than 10%, crushing strength is, 280kg/cm 2 (mean) where it is 245 kg/cm 2 (minimum). It doesn’t have efflorescence. It emits a metallic sound when struck by another