Liquid Sodium Silicate 38 BeTunnel Plugging Grade

Engineering Challenges of Fine Crack Sealing   Seepage through tunnel lining cracks and fine surrounding rock fractures is the most common and most difficult quality defect to cure in tunnel engineering. These fine cracks often have widths of only 0.1–2mm, and conventional cement slurries, due to their larger particle sizes, cannot effectively fill them. The dual-fluid grouting system composed of tunnel sealing-grade Sodium Silicate and calcium chloride, with its characteristics of low viscosity, high permeability, and rapid reaction, has become the professional solution for sealing fine cracks in tunnels.   Reaction Mechanism of Sodium Silicate-Calcium Chloride   The resulting calcium silicate  gel and silica gel (SiO₂·nH₂O) have extremely strong bonding capacity, effectively filling fractures and bonding破碎 surrounding rock. This reaction features the following notable characteristics:   Extremely fast reaction rate: Gelation completes within seconds to minutes after the two solutio…

Industrial Catalyst Grade Aluminium Chloride Catalyst Grade Ammonium Chloride Tunnel Leak Plugging Sodium Silicate Textile Grade Sodium Silicate Casting Grade Ammonium Chloride