Which of the following is a type of cement used in reinforced concrete?

Rapid Hardening Cement is specifically designed to gain strength more quickly than ordinary Portland cement, making it an ideal choice for construction projects that require a quicker turnaround time. This type of cement allows for faster formwork removal and can expedite the construction schedule, which is especially beneficial in situations like road repairs or temporary structures where downtimes must be minimized.

It is formulated with specific ratios of clinker materials that enhance its early-age strength characteristics, enabling it to reach substantial strength levels within just a few days of mixing. This property is particularly important in reinforced concrete applications, as it allows builders to proceed with subsequent phases of construction without delay.

While high alumina cement and geopolymer cement are indeed types of cements used in various applications, they do not universally meet the typical needs of reinforced concrete construction compared to rapid hardening cement. Hydraulic lime, on the other hand, functions differently and does not serve as a substitute for the cement types primarily used in modern reinforced concrete mix designs.