NETTCP Concrete Inspector Practice Exam

Question: 1 / 400

During which phase is CLSM expected to demonstrate its insulating properties?

Before mixing

During placement

After setting

The insulating properties of Controlled Low Strength Material (CLSM) are expected to be demonstrated after it has set. At this stage, the material has gone through the initial chemical reactions and physical changes, which help to develop its thermal and structural properties. Once the CLSM has set, it forms a solid mass with air voids, which significantly contribute to its insulating capabilities.

During this phase, the characteristics of brittle bond strength reduce heat transfer, allowing CLSM to effectively provide insulation. Prior to mixing, during placement, or while curing, the material may not exhibit its full insulating potential, as these are transitional stages where the properties have not fully developed or matured. Thus, the insulation effects won't be apparent until the material has set properly.

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While curing

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