Civil construction materials

Civil construction materials

Concrete

  • Preparation, control, receipt and acceptance
  • Conventional concrete mix design
  • Compressive strength
  • Tensile strength in flexure
  • Sampling, preparing, testing and result analysis of concrete cores
  • Static modulus of elasticity and deformation by compression
  • Water absorption, voids and specific gravity
  • Water penetration under pressure
  • Unit weight, yield and air content by the gravimetric test method of fresh concrete
  • Evaluation of surface hardness by reflecting esclerometer
  • Location of reinforcement bars within the concrete structures with pachometer

 

 

Cement

  • Compressive strength of cylindrical test specimens
  • Specific gravity
  • Fineness index by means of 75 μm sieve
  • Fineness by the air permeability method (Blaine method)
  • Normal consistency paste
  • Setting times
  • Soundness by Le Chatelier test

Aggregates

  • Sieve analysis of fine and coarse aggregates
  • Clay lumps and friable materials
  • Bulk specific gravity, apparent specific gravity and water absorption
  • Unit weight and air-void contents
  • Water absorption
  • Material finer than 75 um sieve by washing
  • Organic impurities

Hollow concrete blocks

  • Dimensional analysis
  • Water absorption and liquid area
  • Compressive strength
  • Prism preparation and compression test

Ceramic blocks

  • Dimensional analysis – geometric characteristics
  • Water absorption index and liquid area
  • Compressive strength

(*) Tests not accredited

The other tests are accredited by Cgcre in accordance with ABNT NBR ISO/IEC 17025, under number CRL 1344.

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