HEAVY CLAY SERVICES

FULL CLAY INVESTIGATION, WHICH INCLUDES:

• Chemical Analysis (XRF / ICP)
• Mineralogical Analysis (XRD)
• Preparation of samples
• Forming properties, drying properties, fired properties, plasticity
• Particle size distribution (PSD)
• Differential thermal analysis (DTA)
• Thermogravimetric analysis (TGA)
• Thermal expansion
Note: The above tests are also carried out individually.

FINAL PRODUCT TESTING

Testing of burnt clay masonry units according to SANS 227:
   – Sample preparation
   – Shape, appearance, texture, colour, dimensions, warpage
   – Water absorption
   – Cold Crushing Strength (CCS)
   – Efflorescence
   – Soundness
   – Moisture Expansion
   – Soluble Salts

Testing of Burnt clay paving units according to SANS 1575:
   – Sample preparation
   – Shape, appearance, colour, dimensions, warpage
   – Water absorption
   – Modulus of Rupture (MOR)
   – Moisture expansion

Resistance to salt attack / Salt weathering

TRAINING

• Brickmaking training course (8 1-day modules over 16 weeks)
• Quality Control course
• Refractories awareness course