Consolidation by water immersion test of the samples with disk geometry constructed without using bonding materials. Photograph register obtained during and after consolidation by water immersion test on sample D31 with disk geometry. Composition of sample D31: total quantity of 5 g of base material composed in weight fraction by 50% w/w of <20 μm and 50% w/w of 20–74 μm; 6% w/w (relative to 5 g of base material) of pH 3 hydrochloric acid solution, and no bonding materials were used.