New Items

Brushbond is a two component acrylic polymer modified elastomeric waterproofing membrane which consists of Brushbond powder and Nitobond BB acrylic emulsion. It requires only the addition of water on site and when mixed in the proper proportions, an easily brushable coating is produced. Brushbond can simply be applied by a stiff brush, or trowel to obtain the desired thickness. Brushbond powder consists of specially selected cements, graded hard-wearing aggregates and additives supplied in powder and Nitobond BB liquid component of blended acrylic copolymers. The polymer provides Brushbond with exceptional adhesion,toughness and durability.

FLOWGROUT 60 is based on specially processed cement containing fillers and additives. FLOWGROUT 60 is supplied as ready to use grout requiring addition of precise quantity of water at site (3.750 to 4 Litre/25 Kg Grout). FLOWGROUT 60 is suitable for gap widths of between 10mm - 50mm. For width less than 10mm FLOWGROUT EP resin grout can be used (see separate data sheet for more information) for thickness in excess of 50mm. (say 75-100), cleaned washed 10mm aggregates can be incorporated at the rate of 50% - 100% of the quantity of grout used. Low water demand ensures high early strength. PROPERTIES Yield Per 25 kg : 12.5 lit. approx Pourable Life : 20 minutes Expansion: Controlled expansion occurs in the unset material to ensure that the grout, when cured will continue to occupy its original volume within the confines of the voids in which it was placed. For thicker section it is necessary to fill out grout with well graded silt free aggregate to minimize heat build up.

TamSoil 190CF is a soil conditioning foam specifically developed to be used with tunnel boring machinery (TBM). It acts as a soil conditioner for various types of soil conditions ranging from silty sand to sandy clay types. The use of TamSoil 190CF results in the creation of temporary cohesion of the soil as well as a reduction in water permeability. TamSoil 190CF gives the soil a cohesive characteristic which is necessary for tunnel boring. The foam also provides an air cushion for the soil which compensates for the abrupt pressure changes at the tunnel face.

TamCrete SSL sets the standard in Thin Sprayed Liners. Over the years, TamCrete SSL has become a robust, cost effective structural support liner.TamCrete SSL is based on Acrylic resin and graded fillers and is not cement based or polyurea based.TamCrete SSL is versatile because it works often when no other means of support is available. It is mainly because it can be applied rapidly and safely, reinforcing the rock mass in the early stages using small compact spraying equipment.TamCrete SSL’s structural support mechanism is considered to be particularly relevant in high stress situations in which some loosening will have taken place and in which on-going stress-induced fracturing does occur. TamCrete SSL penetrates into the rock mass along open fractures and joints and acts as a hard, rough gouge, filling and increasing the cohesion across the fractures. This strengthens the rock mass and limits the ability of the rock fabric to move. (Key block-interlocking). Due to the good adhesion capability of TamCrete SSL it is an excellent support mechanism. The coverage with TamCrete SSL stops weathering and deterioration of fractures and preserves the excavation.Due to the reduced amount of material that is applied savings are realised with operational effectiveness on logistics, application, etc.TamCrete SSL is applied using highly mobile and light equipment without sacrificing spray production. TamCrete SSL can easily be applied in confined spaces and difficult access areas.TamCrete SSL is highly adaptable and can be sprayed on humid and wet areas (not onto pressurised running water). Owing to TamCrete SSL’s fast strength gain ground support may be carried out right up to the working face.