The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is 3%.
Calcium chloride is a common additive to cement that can be used to accelerate the setting time of concrete. It is
also used to improve the workability of concrete and to reduce the risk of bleeding. However, calcium chloride can also cause problems, such as corrosion of reinforcement and increased permeability of concrete. For these reasons, the maximum quantity of calcium chloride that can be used in concrete is limited.The maximum quantity of calcium chloride that can be used in concrete is typically 3% by weight of cement. However, this may vary depending on the type of cement and the specific application. It is important to consult with a qualified concrete professional to determine the appropriate amount of calcium chloride to use in a particular project.
Option A: 1% is too low to have a significant effect on the setting time of concrete.
Option B: 2% is a common dosage for calcium chloride, but it can still cause problems if used in high concentrations.
Option C: 3% is the maximum recommended dosage for calcium chloride.
Option D: 4% is too high and can cause problems with corrosion and permeability.