Many people assume that Poured-in-place terrazzo and precast terrazzo panels are essentially the same thing, differing only in their installation methods. In reality, they represent two distinct systems, encompassing everything from design logic to final execution.

Let’s first clarify the two concepts:

     Poured-in-place terrazzo involves transporting cementing materials and aggregates to the construction site, where they are mixed, laid, ground, and polished on-site to create a seamless, monolithic floor.
   Precast epoxy terrazzo panels are manufactured in a factory—either as standard large slabs or custom-shaped components—and are then transported to the site for installation via adhesive bonding or mechanical (dry-hanging) mounting.

The core value of cast-in-place terrazzo lies in its “monolithic” (seamless) nature.

   Because it is cast in a single operation, cast-in-place terrazzo is seamless, capable of covering tens of thousands of square meters without a single joint. The distribution of aggregates, color transitions, and intricate patterns can all be precisely controlled according to design specifications; for complex forms—such as arcs, curves, and color gradients—cast-in-place terrazzo is essentially the go-to solution.
The trade-off lies in the on-site requirements: the process is sensitive to weather and temperature, resulting in a relatively long construction period. Furthermore, the site must be equipped to handle mixing, dust collection, and grinding, and the project demands a high level of technical expertise from the installation team.

The core value of terrazzo precast slabs is “certainty.”

   Industrialized production ensures that both quality and project timelines remain controllable. With a density of 2.45 g/cm³, a compressive strength of up to 127 MPa, a water absorption rate of 0.8%, and a Class A fire rating—these specifications are achieved through batch production in a stable environment, offering far greater consistency across batches than on-site construction. Furthermore, it significantly shortens the construction period.
Its drawbacks are also clear: the initial investment for precast epoxy terrazzo is somewhat higher, yet the resulting quality and overall effect surpass those of Poured-in-place epoxy terrazzo.