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SEDEXLAB inc.

724, Bériault, suite B,
Longueuil (Québec) J4G 1R8

1250, av. de la Station, casier 6
Shawinigan, Qc
G9N 8K9

François Hamel, geologist

Directeur

fhamel@sedexlab.com

Patrick Usereau, geologist

President

pusereau@sedexlab.com

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Pyrrhotite:

CONCRETE CORE ANALYSIS - PYRRHOTITE

The Sedexlab Concrete Core Analysis assesses the quality and condition of the concrete with a focus on the coarse aggregate as well as the identification and quantification of the mineral pyrrhotite in the coarse aggregate.

 

 

Preparations, examinations and tests carried out after receipt of core samples

 

  • Visual description of each concrete core in the as-received condition in accordance with the relevant guidelines outlined in ASTM C856, “Standard Practice for Petrographic Examination of Hardened Concrete.”

 

  • Stereomicroscopic examination of saw-cut and polished concrete sections in accordance with the relevant guidelines outlined in ASTM C856, “Standard Practice for Petrographic Examination of Hardened Concrete.”

 

  • Petrographic examination of saw-cut and polished concrete sections using reflected light microscopy in accordance with the relevant guidelines outlined in ASTM C856, “Standard Practice for Petrographic Examination of Hardened Concrete.”

 

  • Determination of density, absorption and voids carried out on portions of one concrete core in accordance with the relevant guidelines outlined in ASTM C642 ‘’Standard Test Method for Density, Absorption, and Voids in Hardened Concrete’’.

 

  • Chemical analysis for total sulfur content in concrete using LECO infrared combustion sulfur analysis carried out on a portion of each core in the as-received condition in accordance with the relevant guidelines outlined in standards CSA A23.2-15A and NQ 2560-500/2003.

 

Report content

 

  • Core descriptions including core ID, dimensions, condition, coarse aggregate type and moisture barrier description.
  • % pyrrhotite in coarse aggregate, coarse aggregate composition, % coarse aggregate W/pyrrhotite and % coarse aggregate W/high potential reactivity
  • Chemical analysis including % sulfur in concrete and % sulfur in coarse aggregate
  • Physical analysis including density, absorption and voids in concrete
  • Conclusions, recommendations and important considerations
  • Site photographs provided by the Client
  • Background and regulatory overview

 

Prices and turnaround time

 

  • Our fees for the analysis of two (2) core samples are of 1400 USD. (Minimum recommended)
  • If your project requires the analysis of more than two (2) samples with a maximum of five (5), the fees for each additional core analyzed are 500 USD.
  • Larger projects will be evaluated and quoted on an individual basis.
  • Prices include all shipping expenses.
  • Turnaround time for the submission of the report is estimated at 2-3 weeks following reception of the samples.