Backfilling systems

Neorgon GSg 2.5

Neorgon GSg 2.5

Neorgon GSg 2.5

Neorgon GSg 2.5 cementing slurry is designed to fill the construction gap between the tunnel lining and the ground in case of the shield tunneling method.

Technological and easy to use
Creates a barrier at the pressure of water on a concrete structure
Protection against the effects of aggressive media

Description

Neorgon GSg 2.5 cementing slurry is a compound made on the basis of a complex mineral binder, graded sand, and modifying additives. This product is environmentally friendly and does not contain any harmful impurities that have a negative impact on human health.

Fully compliant with sanitary-hygienic standards that are valid in the territory of the Russian Federation.

The product is manufactured from environmentally compatible raw materials in compliance with the technical specifications of the manufacturer.

Advantages

  • High workability
  • High resistance to shrinking
  • Antifloating
  • Low water segregation
  • Increasing the water impermeability of the lining

Scope of application

Neorgon GSg 2.5 cementing slurry is applied to fill the construction gap between the tunnel lining and the ground in case of the shield tunneling method.

Composition

Neorgon GSg2.5 is made on the basis of a complex mineral binder, graded sand, and modifying additives.

Technical characteristics

Color gray
Maximum fraction, mm 2,5
Mixture consumption, kg/m³ 1800
Mortar density, kg/m³ 2100
Bulk density, kg/m³ (regular / in a compacted state) 1600/1800
Flow on a shaking table, mm 180-210
Tool adhesiveness Absent
Water consumption, l/kg 0,17-0,18
Water segregation after 1 hour, pct < 1
Initial setting time, hours 12
Final setting time, hours 24
Output of backfill stone, pct 97
Compression strength at the age of 28 days, MPa more than 5
Operational temperature, °C +5…+35

Brief instructions for the implementation of remedial work

The mortar must be prepared in full compliance with the accompanying documents.