Friable

Friable materials are those that have deteriorated to the point where they are capable of being crumbled, pulverized, or reduced to powder by hand pressure. Friability occurs with organic and inorganic substances (i.e. paper, leather, glass, textiles, ceramics, etc.).

Stabilization
Friable materials are often either stabilized with the use of consolidants or, in the case of load-bearing materials in buildings, replaced to maintain structural integrity.