Presenting an advanced technological alternative to traditional water glass and silicate injection grouts, colloidal silica grouts offer distinct advantages. With a lower overall pH and reduced susceptibility to syneresis compared to standard sodium-silicate grouts, these low-viscosity liquids are particularly effective for temporary waterproofing of soils and areas preceding tunnel shield operations.
Tunnelling endeavors often encounter challenges such as loose soil, fractured rock, collapses, or significant water inflows. Despite meticulous preparation and engineering studies, these issues can lead to delays or halt operations entirely until remedial actions are implemented.