Controlled low strength material need not be?

Controlled low strength material (CLSM) is often used as a fill material in construction because it provides a lightweight, self-compacting solution that simplifies the construction process. One of the key characteristics of CLSM is that it does not require mechanical compaction like traditional fill materials. The nature of its mixture allows it to flow and consolidate on its own when placed, which means that it achieves adequate strength and stability without the need for additional compaction efforts.

This characteristic is particularly valuable in applications where access for compaction equipment might be limited or where the surrounding structures need to remain undisturbed. By eliminating the need for compaction, CLSM not only reduces labor requirements but also minimizes the risk of damaging nearby utilities or existing structures during construction.

In contrast, mixing, density testing, and ensuring the material is appropriately shaped (curved, if necessary) are all standard practices in the handling and placement of CLSM to confirm its performance and suitability for the intended application.