Diamond B Construction Company, L.L.C.
Plant - Concrete
Alexandria,
Louisiana
View Accreditation Certificate
Steven
Coates
2350 Industrial Park Rd
Alexandria
,
Louisiana
71303
Phone: (318) 355-7435
Fax:
steven.coates@diamondb.com
http://www.diamondb.com/
Quality Management System - accredited since 11/5/2012
R18, D3666 (Aggregate), D3666 (Asphalt Mixture)
Asphalt Mixture - accredited since 11/5/2012
R47, T30, T166, T209, T269, T305, T308, T312, T329
Aggregate - accredited since 11/5/2012
R76, R90, T11, T255
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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