Grout – Powdery or Soft
Powdery or Soft Grout Joints (Tile)
Floor Detective® Claims and Conditions Guide
Summary
Powdery or soft grout joints occur when cementitious grout fails to develop normal surface hardness or internal cohesion during curing. The condition typically develops when hydration of the cement matrix is disrupted by excess water, moisture loss, material dilution, or environmental exposure during early curing. Powdery grout may appear as chalking surfaces, friable joint edges, or deeper loss of cohesion depending on the extent of the disruption. Evaluation focuses on the depth, distribution, and
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