Compressive Strength Test
Trending Questions
Q. If characteristic compressive strength at 28 days is 40 N/mm2 and the standard deviation is 5 N/mm2, the target strength at 28 days for concrete mix proportioning
- 40 N/mm2
- 45 N/mm2
- 43.25 N/mm2
- 48.25 N/mm2
Q. The individual variation between test strength of concrete cube sample should not be more than
- ± 5 % of average
- ± 10 % of average
- ± 15 % of average
- ± 20 % of average
Q. Strength of concrete is maximum in
- twisting
- fatigue
- compression
- shear
Q. Plain cement concrete is strong in taking
- shear stress
- all the three mentioned here
- tensile stress
- compressive stress
Q. Capacity of concrete to bear imposed stresses safely is called as
- Compressive strength
- Shear strength
- Durability
- Resistance
Q. While testing the compressive strength of cement concrete, the correct standard conditions (viz temperature, age, humidity and size of the specimen) to be maintained as per IS are
- 27±3oC, 28 days, 90% and 15 cm cube
- 26±2oC, 28 days, 80% and 15 cm cube
- 25±1oC, 14 days, 75% and 10 cm cube
- 27±3oC, 7 days, 70% and 10 cm cube