Question

name the substance used as a retarder in cement​

Answer 1

Answer:

borax

Explanation:

Inorganic compounds, commonly used as cement retarders, are borax (Na2B4O7•10H2) and other borates such as boric acid (H3BO3) and its sodium salt and zinc oxide (ZnO). Borates are commonly used as a retarder aid for high-temperature retarders at BHCT of 300°F (149°C) and greater.

Answer 2

Answer:

Borax is an inorganic compound which is used as a retarder in cement.