Injection Resins for Tunnels & Mines

• PU 2K 1601
• PU 2K 1604

• Colossus® PU 2K 1601 is a  quick reacting two component polyurethane injection resin for durable sealing and stabilization of dry and water – bearing zone in rock mass , dams , tunnels , canals , shaft and soil below the foundation . Colossus® PU 2K 1601 is characterized by it’s short reaction time, and high final strength , it shows slight foam formation when mixed with water .

  Given free expansion material increases it’s volume by about 3 times. The reaction mixture cures with out foam formation to form a pore free , compact and highly solid material if it does not come in contact with water and renders the structure watertight. Reacts with water forming a rigid hydrophobic foam that encapsulates grains of soils. Colossus® PU 2K 1601 is used for ground stabilisation. Besides giving stability it is also often used to restrain water bearing layers in the soil.

  Mixing ratio                            1 : 1
  Density (23 ° C)                     1.01 g/cm³                              1.23 g/cm³
  Viscosity (23 ° C)                   Approx 300 mPas                   Aprrox 260 mPas
  Reaction time
  (23 °C) – Flow Limit             40 Sec. (Can Be Accelerate by adding 15% Accelerator )
  Solid                   60 Sec
  Shore D hardness ( after 3 days                                            73/65
  Compressive Strength (uniaxial) after 3 days Approx 80 N/mm² ( mPa)

• Colossus® PU 2K 1604 is design for quickly stopping flowing water due to cracks , cavities and leaks. Colossus® PU 2K 1604 is also suitable for stabilizing non binding soil and as injection material for hydraulic base failures . Colossus® PU 2K 1604 is recommended as temporary sealing for foundation pits , water bearing joints and drilling holes.

  Colossus® PU 2K 1604 is a 2 Component PU injection foam resin which strongly expands and cures to form a semi rigid foam when mixing with water. Colossus® PU 2K 1604 only start reacting upon contact with water in foundation soil and therefore does not cure in the injection lance. Its reaction time can be adjusted to the desired reaction rate by adding up to 20 % of Accelerator.

  Mixing ratio -1 : 1-
  Density (23 ° C)- Comp. A -1.03 g/cm³-                   Comp. B – 1.24 g/cm³
  Reaction time -                               12 °C -                23 °C-                30 °C
  Foaming Start                                 9 Sec                   9 Sec                  8 Sec
  Foaming End                                  35 Sec                 31 Sec                30 Sec
  Foaming factor                               38 – fold             38 – fold             38 – fold
  (Adding 10 % Accelerator)
  Foaming Start                                7 Sec                    7 Sec                   7 Sec
  Foaming End                                 24 Sec                  24 Sec                 24 Sec
  Foaming factor                              28 – fold-              30 – fold             35 – fold
  (Adding 15 % Accelerator)

• SIL 2K 1801
• SIL 2K 1804

• Colossus® SIL 2K 1801 is suitable for quickly stopping water. Colossus®  SIL 2K 1801 is recommended for the preventive securing and stabilization of  heading faces in tunnel constructions and for the quick filling of cavities .  Colossus® SIL 2K 1801 is also suitable for stabilizing and sealing water  bearing layers for stabilizing soil and rock. After mixing the two Component  Colossus® SIL 2K 1801 reacts and strongly expands to form a foam with a fine  cellular texture. Colossus® SIL 2K 1801   also react in the presence of water , but no water require for the foam  formation . The cured foam is ready for cutting and planning

  Mixing ratio                                           1  : 1
  Density (23 ° C)                                    1.15 g/cm³                                           1.23 g/cm³
  Viscosity (23 ° C)                                  Approx 50 mPas                                Approx 180 mPas
  Reaction time                       12  °C                                23  °C                                   30 °C
  Liquid Limit                         Approx  36 Sec                Approx  27 Sec                   Approx  21 Sec
  Tack Free                           Approx  120 Sec              Approx 120 Sec                  Approx 110 Sec
  Solid                                   Approx  130 Sec              Approx 120 Sec                  Approx 110 Sec
  Foaming Start                     Approx  16 Sec                Approx 13 Sec                    Approx 12 Sec
  Foaming End                      Approx  55 Sec                Approx 45 Sec                    Approx 40 Sec
  Foaming Factor                  Approx 35 Fold               Approx  30 Fold                  Approx 30 Fold
  Density at Maximum Expansion                                    Approx 0.038  – 0.04 g/cm³
  Application                                                                          Injection  by 2 Component Pump

• Colossus® SIL 2K  1804 is a  quick reacting two component  Silicate  injection resin for durable  sealing and stabilization of dry and water – bearing zone in rock mass , dams ,  tunnels , canals , shaft and soil below the foundation . Colossus® SIL 2K 1804  is characterized by it’s short reaction time, and high final strength , it shows  slight foam formation when mixed with water . Given free expansion material  increases it’s volume by about 1 time. Thanks to material’s high density ,  cavities filled with water are filled from bottom to top displacing the water .  The reaction mixture cures with out foam formation to form a pore free ,  compact and highly solid material if it does not come in contact with water and  renders the structure watertight. Reacts with water forming a rigid hydrophobic  foam that encapsulates grains of soils. Colossus® SIL 2K 1804 is used for  ground stabilisation. Besides giving stability it is also often used to  restrain water bearing layers in the soil. If exposed to pressure ( Due to rock  motion) Colossus® SIL 2K 1804 is malleable enough to adapt its foam.

  Mixing ratio                                                  1  : 1
  Density (23 ° C)                                           1.44 g/cm³                                         1.23  g/cm³
  Viscosity (23 ° C)                                        Approx 210 mPas                          Approx 180 mPas
  Reaction time
  (23 °C) – Flow Limit                                30 Sec.
  Solid                                                 90  Sec.
  Shore D hardness (23 ° C)
  1Hour                                            70/68
  24 hrs                                             70/68
  Compressive Strength (uniaxial)
  1 day                                              Approx 65 N/mm² (mPa)
  3 days                                           Approx 75 N/mm²  (mPa)
  Tensile Strength  3 days                 Approx 12 N/mm² ( mPa)
  Bending Tensile Strength
  6 Hours                                         Approx  20 N/mm² ( mPa)
  3 Days                                           Approx 25 N/mm² ( mPa)
  Heat development                        107 °C Max in 2 Minutes

• PN – 2K -230/12
• PN – 2K – F1

• Colossus_® PN – 2K-230/12 is an air-driven, 2-comp.  injection pump with a fixed mixing ratio for the application of products of the Colossus® Consolidation Line.

  • Delivery with counter-pressure (1:1 mixing ratio) -12 l/min ( 100 bar)
  • Maximum operating pressure 230 bar
  • Air consumption at 6 m³/min ( 212 CU ft /min).
  •  Maximum air intake pressure 8 bar  -
  • Total weight approx. 90 kg

• The working principle of the Colossus®   PN – 2K F1  is based on two  regenerative, air-operated piston pumps. A compressor with an air  output of 200 – 400 l/min. is required for operating the pump. The  individual components are introduced to the mixing head separately.  The actual mixing process is implemented by means of a static mixer located in the mixing head. Check valves prevent the components from flowing back into the feed tubes and thus avoid all accidental reactions within the feed system.

  Compressed air-operated two component high-pressure pump
  Continuous delivery                  · 1:1 mixing ratio
  High metering accuracy            · Separate flush pump
  Compact design · Safe to operate
  Pump and mixer are made of stainless steel
  Delivery without counter-pressure (1:1 mixing ratio) -14 l/min
  Maximum operating pressure 200 bar
  Air consumption at 6 bar 200 – 400 l/min.
  Maximum air intake pressure 8 bar  -
  Total weight approx. 47 kg
  

Inflatable Packer

Material               :  Plastic Core with inflating body made of rubber – coated fabric
Diameter              :  approx Ø 40 mm
Max. Expansion   :  approx Ø 70 mm
Length                  :  approx 330 mm
Max Flow Rate    :  approx 20 l/min
Opening Pressure :  approx 40 bar

Self Drilling Rods

Foam HG

Foam HG is a high performance foaming agent, formulated with special natural polymers and biodegradable anionic surfactants. It produces very stable foams and can be used both with clean and salted water, even with high hardness and is characterized by minimal environmental impact.

Foam HG has a high strength and good lubricating properties, improve substantially the carrying capacity of the resulting materials (debris) allowing, thus, obtaining a cleaner excavation area. Such benefits may also increase with small additions of polymer Acryl 46. It can be injected into any type of terrain, including fractured and very permeable, prevents agglomeration of the clay and prevent blockages in the shield and in the chamber excavation of EPB machines. it reduces, thanks to the power of lubrication, the friction between the soil and digging equipment, significantly lowering the level of wear and increasing the efficiency of the machine.  It lends itself also as a valuable additive against dust, especially during excavations in the coal mines. Foam HG is quickly biodegradable and not pollutant for environment.

DOSING

Foam HG should be mixed with water in concentrations ranging from 1,5% to 4%, according to the conditions of excavation and soil type and the types of foam generator.

In each case the values of expansion foam should be developed on site to verify the correct ratio between foam injected and the excavated product according to the various conditions of pressure.

In principle, one can establish the following concentrations:

as a foaming agent (to EPB)

•  normal ranges: 1.5% – 3%
•  below the water table: 3% – 4%

As an agent against dust: 4.3%

Appearance  colorless or slightly yellowish transparent liquid medium viscous

Density 23 ° C                                                                     1.04 ± 0.02 [Kg/l]
PH (for 1% solution)                                                              6-8
Solubility                                                                              Water-soluble

Shelf life 6 months, well sealed in original packaging, stored in a cool, dry place in temperatures between +5 ° C to +30 ° C.

Acryl 46

Acryl 46 is a liquid polymer synthetic high molecular weight, formulated with special copolymers acrylamide / sodium acrylate, suitable treatment of the sludge in preparation work drilling land and civil engineering. Acryl 46 also has a high power lubricant battery against drilling reducing friction and wear torsion. Acryl  46 is as translucent milky liquid medium viscosity, extremely easy to disperse in water, which hydrolyzes forming solutions clear and highly viscous. It does not presents dangers of toxicity and flammability. Acryl  46 may also find use as a stabilizer and thickener foam products in our foaming Foam HG.

APPLICATIONS - BOREHOLES – HORIZONTAL PERFORATIONS – MAKE THICK OF MUD – MICROTUNNEL – BAFFLE – BORE POLES – CLARIFICATION OF WATER DISCHARGE – STABILIZATION OF FOAMS – LOST FLUID CONTROL

TECHNICAL (+20 ° C)

Appearance : emulsion translucent white
Density : 1.05 ± 0.02 [kg / l]
PH (sol.5%) : 6-8
Ionic Activities : moderate anionic
Viscosity : 1000 ± 400 cPs

DOSAGE - Drilling mud from 2 to 5 kg / cubic meter (depending on the type of training)
- How stabilizing foaming products: from 2 to 4 kg each 1000 liters of water (the product should be added to water under constant agitation, 20-30 minutes before the foaming).

• Seal TBM / C – 1P
• Seal TBM / T -

• Seal TBM/C-1P is a sealant, that can be used in tunnels dug with full-section mechanical cutter to prevent backfilling grout, water and mortar from penetrating the shield and reaching the digging face.
  His high temperatures resistance reduces flame risk in tunnelling machines. Seal TBM/C-1P has excellent pumping properties and adhesion to all surfaces, excellent water wash out resistance, even against salt water. It is formulated to resist high pressures. It is used, in particular, as a product of “first fill”.
  Density (ISO 758) :                    1.40 ±0.020 (g/cm2)
  Consistency :                            170-190 (ASTM D217-D97)
  Flash point (ASTM D 92) :           > 205 °C.
  Pumping properties :                  40-45 [gr/min] at a pressure of 10 bar and Temp.25 ° C)
  Volatility (ASTM D 972) :            <= 3 % (Astm D 972)
  Wash out test : <                       7 (ASTM 1264) (%)
  Water spray-off :                        2,28 (ASTM D 4049) (%)
  Shelf life :                                 1 year in sealed original containers, stored in a cool, dry place
      
  Although the consumption depends on the type of soil to be treated and the type of TBM, generally apply from 0.400 to 1.500 kg/m2 (lb/ft2 0.08 to 0.31) in cross-section of the tunnel.

• Seal TBM/T is a sealant that can be used in tunnels dug with full-section mechanical cutter, specially

  developed to resist against mud, water and dust. Seal TBM/T has excellent adherence even on wet surfaces and excellent water wash out resistance (< 6%), it is stable at considerable pressure. It has high lubricating power so it can be used on all rotary parts at the cutter head. It is a pumpable product and easy to apply.

  TECHNICAL PROPERTIES (at +25°C and 60% R.H.)

  • Density :                                      1.2 ±0.050 [g/cm2]
  • Consistency :                               250-275
  • Flash point (ASTM D 92) :         > 190°C.
  • Pumping properties :                  40-50 [gr/min]
  • Volatility :                                   < 2%
  • Water wash out test :                  < 6%
  • Adherence test :                          > 35 minutes
  • Shelf life :                                   1 year, stored in their original tightly closed containers

Sperse 1/45

Sperse 1 / 45 is a dispersing agent for high performance liquid, formulated with special polycarboxyiates modified suited to the treatment of dispersion of clay purposes, in the presence of benton slurries, in the presence of kaolin and other materials strongly cohesive. The product is ready for use and is not affected by the hardness and thermal fluctuations. Sperse 1 / 45 is then used in the following applications: – Disperse / disrupt clay with a strong cohesive power, with a consequent decrease in viscosity of the same during the excavations with TBM. – Disperse, disrupt, stabilize soils purposes generally, compact (benton, kaolin, etc.). – Facilitate the resumption of excavations with cutters after long stops.

DOSAGE AND APPLICATION The product is ready to use and dose guidance is as follows:

-In addition to water 0.5-1.5% of the volume of soil excavated -In addition to solving foam 0.1 -0.5% of the volume of soil excavated -In benton slurries 0.05-1% of the total volume

TECHNICAL (+20 ° C)

Appearance :                                      Transparent liquid slightly straw
Density :                                             1.26 ± 0.02 [kg / l] PH : 7.0 ± 0.5
Dry residue :                                       45 ± 2%
Viscosity :                                          800 ± 100 mPa.s (Brookfield method)
Solubility in water :                              Total
Storage: The product fears the frozen- stored at temperatures ranging from + 5 ° C and + 50 ° C.