Which is a characteristic of fast-setting latex portland cement?

Fast-setting latex portland cement is specifically formulated for rapid installation and curing, making it ideal for projects where time is of the essence. This characteristic allows installers to complete their work quickly, reducing the waiting time before additional steps can be taken, such as foot traffic or subsequent layer installations. Its quick-setting nature is particularly beneficial in situations where delays can lead to an increase in labor costs or disruption of services.

In contrast, the other options provide characteristics that do not align with the primary purpose of fast-setting latex portland cement. For instance, being slow-drying contradicts the very definition of fast-setting products. Lightweight may describe some types of cement, but it does not specifically address the quick-setting feature that distinguishes this material. Finally, the notion that it is only used for interior applications is misleading as fast-setting latex portland cement can often be used in exterior situations, depending on the specific product formulation and environmental conditions.