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.

what"s the formula to calculate the water for M15 grade concrete?

4 Answers  

---

Minimum size of the particles of silt soil

1 Answers  

---

what will be the difference in compressive test results for a 150 mm cube, a 150 mm cylinder and a 300 mm cube

5 Answers  

---

What is Rodding in Chimney construction?

1 Answers   SSC,

---

How to find the no. of main bar in circular footing (Central shaft of CLF)

3 Answers   N J Devani Builders, Simplex,

---

---

How to find the thickness of RCC concrete ex.10'x10'. what"s the thickness, we provide and what"s the formula?

2 Answers   L&T,

---

1. What is difference between auto level & dumpy level?

2 Answers   Qatar Airlines, Sita Homes,

---

What is zoning permit?

0 Answers  

---

why we provide bent up reinforcement bars at l/4 ? if it is because of diagonal shear , how does it acts ?

0 Answers  

---

For 1cu.m how many bricks required practically

6 Answers  

---

IS sobha developers ,bangalore an good place to work for the freshers

5 Answers  

---

what is the difference between volume and weight batching and which is better?

2 Answers   ECCI,

---