CalPortland Company
Oro Grande,
California
View Accreditation Certificate
Robert
Sylvia
19409 National Trails Highway
Oro Grande
,
California
92368
Phone: (760) 269-1126
Fax:
bsylvia@calportland.com
http://www.calportland.com
Quality Management System - accredited since 8/26/2011
R18, C1222 (Cement)
Cement - Physical Tests - accredited since 8/26/2011
C109, C114 (Loss on Ignition - Reference), C151, C183, C185, C187, C191, C204, C266, C305, C430, C451, C511, C1038, C1437, C1506
Cementitious Material - Chemical Tests - accredited since 8/26/2011
C114 (Aluminum Oxide – X-Ray Fluorescence)
C114 (Calcium Oxide – X-Ray Fluorescence)
C114 (Chloride – 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 8/11/2026. Please visit https://aashtoresource.org for current accreditation status.
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