Styrenix Performance Materials Interview Questions and Answers

Minimum compressive strength of OPC 43 grade cement is 43 MPa.

• OPC 43 grade cement has a minimum compressive strength of 43 MPa

• The compressive strength of cement is a measure of its ability to withstand compressive loads

• OPC stands for Ordinary Portland Cement

• The grade of cement indicates its strength and quality

The minimum compressive strength of M:25 concrete is a concern in quality control.

• The minimum compressive strength of M:25 concrete is specified in the design mix.

• It is important to ensure that the concrete meets or exceeds the specified minimum compressive strength.

• Testing of concrete samples is conducted to determine the compressive strength.

• The minimum compressive strength requirement may vary depending on the project specifications.

• Failure to meet the minimum compressive ...read more

The number of bricks in one cubic metre depends on the size of the bricks.

• The size of the bricks determines the number of bricks in one cubic metre.

• Different sizes of bricks will result in different numbers of bricks in one cubic metre.

• To calculate the number of bricks, divide the volume of the cubic metre by the volume of one brick.

The water cement ratio is the ratio of the weight of water to the weight of cement used in a concrete mix.

• It is an important factor in determining the strength and durability of concrete.

• A lower water cement ratio results in stronger and more durable concrete.

• The water cement ratio can vary depending on the desired strength and workability of the concrete mix.

• For example, a water cement ratio of 0.5 means that for every 1 kg of cement, 0.5 kg of water is used.

The density of steel is approximately 7.85 grams per cubic centimeter.

• The density of steel is a physical property that measures the mass of steel per unit volume.

• It is commonly expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

• The density of steel can vary depending on the specific type and composition of the steel alloy.

• For example, the density of stainless steel is typically around 7.9 g/cm³.

• Density is an important factor in determining th...read more