What is the term for concrete that is delivered to the job site pre-mixed?

Concrete that is delivered to the job site pre-mixed is commonly referred to as transit mix. This type of concrete is mixed at a batch plant and usually transported in a ready-mix truck that keeps the concrete in motion to prevent it from hardening. The term "transit mix" specifically emphasizes the transportation aspect of the concrete, highlighting that it is prepared and mixed off-site and then delivered to the location where it will be used.

In contrast, short load mix typically refers to smaller quantities of concrete delivered for smaller jobs, while small batch mix indicates a limited amount mixed, often on-site or in smaller batches at the plant. Site mix refers to concrete that is mixed directly at the job site, which is different from the pre-mixed nature of transit mix. Understanding these distinctions is vital for selecting the appropriate type of concrete based on project requirements and logistical considerations.