Nalchik ash block. Destruction by moisture and frost.
Demonstration of material degradation (Nalchik ash block) under the influence of excessive moisture combined with low temperatures.
Degradation occurred within five months.
Nalchik ash block is a hollow, autoclaved material made from volcanic ash. It is produced primarily in Nalchik and the surrounding area. Its density is approximately 1200 kg/m3. The weight of a single block is approximately 20 kg. Dimensions: 190 x 190 x 390.