GCC Dacotah Inc.
Rapid City,
South Dakota
View Accreditation Certificate
Ceiry
Alvidrez
501 North St. Onge St.
Rapid City
,
South Dakota
57702
Phone: (605) 721-7042
Fax: (605) 721-7006
calvidrezc@gcc.com
http://https://www.gcc.com/
Quality Management System - accredited since 10/4/2012
R18, C1222 (Cement)
Cement - Physical Tests - accredited since 10/4/2012
C109, C114 (Loss on Ignition - Reference), C151, C183, C185, C187, C191, C204, C305, C430, C451, C511, C1437
Cementitious Material - Chemical Tests - accredited since 10/4/2012
C114 (Aluminum Oxide – X-Ray Fluorescence)
C114 (Calcium Oxide – X-Ray Fluorescence)
C114 (Ferric Oxide – X-Ray Fluorescence)
C114 (Insoluble Residue – Reference)
C114 (Loss on Ignition – Reference)
C114 (Magnesium Oxide – X-Ray Fluorescence)
C114 (Potassium Oxide – X-Ray Fluorescence)
C114 (Silicon Dioxide – X-Ray Fluorescence)
C114 (Sodium Oxide – X-Ray Fluorescence)
C114 (Sulfur Trioxide – X-Ray Fluorescence)
Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.
* This information is only valid as of 10/27/2026. Please visit https://aashtoresource.org for current accreditation status.
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