Picture of Lewis Crouch

Lewis Crouch

Systems Developer

Training Records

AGGREGATES

  • Methods for sampling (BS EN 932-1:1997)
  • Methods for reducing laboratory samples (BS EN 932-2:1999)
  • Determination of particle size distribution – sieving method (BS EN 933-1:2012)
  • Determination of particle shape – flakiness index (BS EN 933-3:2012)
  • Determination of water content by drying in a ventilated oven (BS EN 1097-5:2008)

BITUMINOUS MIXTURES

  • Measurement of temperature – in a lorry / laid material / heaps (BS EN 12697-13:2000)
  • Sampling – augers / laid material / heaps (BS EN 12697-27:2001)
  • Preparing test samples for determining binder content, water content and grading (BS EN 12697-28:2001)
  • Binder content by ignition (BS EN 12697-39:2012)

CONCRETE

  • Sampling fresh concrete on site (BS EN 12350-1:2009)
  • Slump (BS EN 12350-2:2009)
  • Flow (BS EN 12350-5:2009)
  • Air Content (BS EN 12350-7:2009)
  • Making and curing specimens for strength tests (BS EN 12390-2:2009)
  • Compressive strength of test specimens (BS EN 12390-3:2009)
  • Density of hardened concrete (BS EN 12390-7:2009)

GROUT

  • Flow (ASTM C939-02)

ROAD PAVEMENT SURFACES

  • Measurement of pavement macrotexture (BS EN 13036-1:2010)
  • Rolling straight edge (SHW 2008:CL 702 & UKAS TPS25)
  • 3M Beam (SHW 2008:CL 702 & UKAS TPS25)
  • In-situ density NDG (Balfour Beatty standard procedure test 009)
  • In-situ density PDM (Balfour Beatty standard procedure test 027)

SOILS

  • Moisture content – oven drying method (BS 1377-2:1990)
  • Particle size distribution – wet sieving (BS 1377-2:1990)
  • Particle size distribution – dry sieving (BS 1377-2:1990)
  • Dry density moisture content relationship (BS 1377-4:1990)
  • Moisture condition value (BS 1377-4:1990 & SDD tech Memo SH7/83)
  • In-situ density – sand replacement method (BS 1377-9:1990)
  • Uniformity coefficient (SHW 2008:Table 6/1 footnote 5)
  • Hand shear vane (NZ Geotechnical Soc August 2001)
  • Sampling earthworks material (Balfour Beatty standard procedure test 001)
  • Plate CBR
  • Dynamic Cone Penetrometer (Balfour Beatty standard procedure test 010)
  • Prima LWD

CALIBRATIONS

  • Various equipment calibrations