Singhal Enterprises Site Engineer Interview Questions and Answers

Concrete mix refers to the combination of ingredients used to create concrete, including cement, aggregates, water, and admixtures.

• Concrete mix typically consists of cement, aggregates (such as sand and gravel), water, and sometimes admixtures.

• The ratio of these ingredients can vary depending on the desired strength, workability, and durability of the concrete.

• For example, a common concrete mix for general use is 1 par...read more

Retarder in concrete mix is a chemical additive used to slow down the setting time of concrete.

• Retarders help in preventing the concrete from setting too quickly, allowing more time for placement and finishing.

• They are commonly used in hot weather conditions to prevent premature setting.

• Examples of retarders include lignosulfonates, sugars, and citric acid.