Answer / jai.vignesh

first class bricks = Between 7 to 10 N/mm2
Second class bricks= Between 3 to 7 N/mm2
Third class bricks = Less than 3 N/mm2 (should not used)

Answer / karthik

For First class bricks - Compressive strength Should not be
less than 14 N/mm2

and for Second class Bricks - Should be under 7-14N/mm2

The minimum compressive strength of concrete should not be
less than 3.5N/mm2.

Note : If any brick which has a compressive strength of less
than 3.5N/mm2 should be rejected..!!

Answer / vinod mahawar

105 kg/sq.cm

Answer / krishnakanth jami

(i) Common building bricks—35 kg/sq. cm,
(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.

Hi, Please tell me the ISI specification for the duration of concrete to achieve full strength of concrete. Is it 28days?

7 Answers   UPSC,

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how can can column be corrected when the design is not safe ? is the increasing the clearcover a solution?

0 Answers  

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what is the difference between prime coat and tack coat in road construction

0 Answers  

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57. Calculate the volume of a truck loaded with stone chips whose data are as follows– 5 Top Length - 13-9, 13-10, 13-09 Bottom Length - 13-11, 13-10.5, 13-10 Top width - 8-7.5, 8-8, 8-7 Bottom width - 8-7, 8-8, 8-7.5 Depth - 2-0, 1-11.5, 1-10, 1-11, 1 -10.5, 1-11.75, 1-11

0 Answers   L&T,

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how to calculate load bearing column

0 Answers  

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What is the mix propotion of M10,M15,M20,M25,M30,M40,M50.M60 cement content,aggrigate,sand and water ratio.

0 Answers   L&T,

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Define What are the materials used in building a gravity dam?

0 Answers  

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how much cement sand n bricks required in im3?and how much in plaster?

0 Answers  

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Please provide detail I.S standard code for using crush sand instead of river sand for plaster and concrete grade M15, M20, M25 and M30 and its mix design

1 Answers   JPMorgan Chase, Sobha Developers, Structwel,

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what is right & short method of measurement of slab&beam

0 Answers   L&T,

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.5Ast

0 Answers   NAU,

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Can we use PPC AND PSC CEMENT FOR MIX DEIGN?

1 Answers   IVRCL, Reward Constructions,

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