Investigation

• Geotechnical assessment and soil testing 

• Non-destructive pavement testing

• Subgrade evaluation and pavement profiling

• Pavement falling weight deflectometer (FWD) testing

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Pavement Design and Verification

• Empirical and mechanistic design of pavements using CIRCLY software

• Pavement rehabilitation and resurfacing treatments to increase the life of the existing pavement

• Flexible pavements consisting of unbound granular material and bound layers for light and medium duty applications

• Flexible composite, deep strength and full depth asphalt pavements for heavy duty applications using dense graded asphalt, open graded asphalt, stone mastic asphalt and high modulus asphalt (EME2)

• Lightly bound and rigid pavements (concrete pavements)

• Hot in-place asphalt recycling (HIPAR) treatments

• Subgrade treatments and improved layers for soft or expansive subgrades including lime stabilisation, geotextile wrapped granular material, Category 1 or 2 heavily bound (cemented material) and lean-mix concrete treatments

• Plant-mixed and insitu stabilised pavements using quicklime, hydrated lime, cement and foamed bitumen

• Design using back analysed deflection data 

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Road surfacing selection and design

• Prime and initial seals using cutback bitumen and bitumen emulsion

• Secondary sprayed seal treatments for urban and rural environments including single/single seals, double/double seals, strain alleviating membranes (SAM), and strain alleviating membrane interlayer (SAMI) seals

• High performance sprayed seal treatments for heavy traffic loadings including high stress seals, extreme stress seals, fibre reinforced seals and geotextile reinforced seals

• Sprayed seal corrective treatments to address surface stripping and flushing including dry matting

• Surface enrichment and rejuvenation treatments to extend the life of existing bitumen surfacing

• Selection of suitable binders including conventional bitumen, multigrade bitumen, polymer modified binder (PMB), crumb rubber and bitumen emulsion

• Selection and design of sprayed seal treatments for heavy duty applications such as access roads to quarries and mining locations

• Selection and design of precoated cover aggregates for various sprayed seal treatments