Ground Engineering

Forefront of Resin Technology. Providing Systems that are Environmentally Safe.

Overview

What is ground engineering?

Ground engineering, also known as geotechnical engineering, is about the understanding of soil, rock and strata mechanics; the identification of these mechanics at mining, construction and civil engineering project sites; and the application of solutions to stabilise conditions so as to allow a project to proceed. The main objective is to increase the soil density, shear strength while decreasing water penetration and compressibility so that the soil has improved load bearing capacity, controls groundwater and is more stable.

What ground improvement techniques are used?

There are various ground improvement techniques: Grouting, soil compaction, soil mixing, cement/lime stabilisation, vibro-replacement and the use of geotextiles.

Normet provides solutions to deliver ground improvement through permeation grouting.

What is permeation grouting?

Permeation grouting is where cracks, joints or any other voids are filled with flowable grouts to create a stable mass. Permeation grouting uses chemical grouts and cementitious grouts. It is commonly used:

  • Cheaper for underpinning than other ground improvement techniques such as using piles or soil removal and replacement
  • More cost efficient than removal and relaying for slabs that have subsided
  • Usable where access is difficult and limited space
  • Allows normal day to day business to continue with no or minimal disruption
  • Allows excavation footprint to be maximised

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Which chemical grout to use for ground improvement?

The choice of which grout to use is heavily determined by the grain size and the application.Ground improvement injection resin type

TamPur 116
  • Low viscosity, two component silicate modified polyurea resin
  • Ideally suited for permeation grouting of fractured rock, sands and gravels.
  • Excellent strength properties
  • Fast reacting even under water
  • More information on TamPur 116
GeoTek LV
  • Low viscosity, single component polyurethane resin
  • Ideally suited as an underpinning grout and grouting of granular soils
  • Excellent penetration capability
  • Significantly improves soil bearing capacity
  • Variable reaction speed with the addition of an accelerator (GeoTek LV Accelerator)
  • More information on GeoTek LV
GeoTek HS
  • Dual component polyurethane resin
  • Ideally suited for grouting of granular soils, gravels and rock fissures
  • Exceptionally strong rigid closed cell foam
  • Excellent penetration capability
  • Varying grades available
  • More information on GeoTek HS
GeoTek AC
  • Ultra-low viscosity acrylic injection gel
  • Ideally suited for permeation grouting in fine graded soils
  • Excellent penetration capability
  • Environmentally friendly
  • Adjustable gel times with the addition of an accelerator (GeoTek AC Accelerator)
  • More information on GeoTek AC
TamCrete 400CS
  • Ultra-low viscosity colloidal silica gel
  • Ideally suited for grouting of soils, gravels and rock fissures
  • Excellent penetration capability
  • Environmentally friendly
  • Adjustable gel times with the addition of a hardener (TamCrete 400CS Hardener)
  • More information on TamCrete 400CS
GeoTek SJ
  • Extremely fast reaction
  • Ideally suited for slab lifting
  • Exceptionally strong
  • Excellent bearing capability
  • Environmentally friendly
  • More information on GeoTek SJ

Normet are global leaders in specialist chemical resins and grouts

Normet Construction Chemicals has been actively involved in ground engineering works worldwide for over 40 years, both manufacturing and supplying specialist chemical resins and grouts to the building and civil engineering industry.

Today we are recognised as a market leader with our specialist products, systems and applications. We are committed to remaining at the leading edge of product development and product performance improvement. We continually invest in technically advancing our materials and are renowned for providing excellent technical support to the building and construction industry.

Normet has sales, distribution and manufacturing facilities worldwide, making us well positioned to serve the construction and building industry on a global scale.

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