CTL/Thompson, Inc.
Denver,
Colorado
View Accreditation Certificate
Tylor
Mossberger
22 Lipan Street
Denver
,
Colorado
80223
Phone: (303) 892-3282
Fax:
tmossberger@ctlthompson.com
http://www.ctlthompson.com
Quality Management System - accredited since 3/1/2001
R18, C1077 (Concrete), C1093 (Masonry), C1222 (Cement), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Masonry), E329 (Soil)
Asphalt Mixture - accredited since 4/1/2001
R47, T30, T164, T166, T209, T269, T283, T308, T312, D2041, D2172, D2726, D3203, D3549, D4867, D5444, D6307, D6925
Soil - accredited since 10/15/2001
R58, T88, T89, T90, T99, T100, T180, T190, T193, T208, T236, T265, T310, D421, D422, D558, D698, D854, D1140, D1557, D1883, D2166, D2216, D2487, D2844, D3080, D4318, D4546, D6938
Aggregate - accredited since 3/1/2001
R76, T11, T19, T21, T84, T85, T96, T104, T112, T113, T176, T255, T335, C29, C40, C88, C117, C123, C127, C128, C131, C142, C535, C566, C702, D2419, D4791, D5821
Concrete - accredited since 3/1/2001
M201, R39, R60, R100 (Beams), R100 (Cylinders), R115, T22, T24 (Drilling Cores of Concrete), T24 (Testing Drilled Cores of Concrete), T71, T97, T119, T121, T152, T160, T161, T198, T231 (7000 psi and below), T277, T303, T309, C31 (Beams), C31 (Cylinders), C39, C42 (Drilling Cores of Concrete), C42 (Testing Drilled Cores of Concrete), C78, C87, C138, C143, C157, C172, C192, C215, C231, C305, C469, C496, C511, C617 (7000 psi and below), C642, C666, C1064, C1105, C1202, C1231 (7000 psi and below), C1260, C1293, C1542, C1567
Cement - Physical Tests - accredited since 1/28/2004
M201, R71, R115, T106, T107, T129, T131, T133, T137, T153, T154, T186, T192, C109, C151, C183, C185, C187, C188, C191, C204, C266, C305, C430, C451, C452, C511, C1012, C1437, C1506
Pozzolan - Physical Tests - accredited since 10/2/2015
M201, R115, T106, T107, T129, T133, T137, T160, T186, T192, C109, C151, C157, C185, C187, C188, C305, C311 (Loss on Ignition), C311 (Moisture Content), C430, C441, C451, C511, C1012, C1437
Masonry - accredited since 3/6/2008
T106 / C109 (Compressive Strength of Hydraulic Cement Mortars (Using 2-in. Cube Specimens))
T137 / C185 (Air Content of Hydraulic Cement Mortar)
R115 / C305 (Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency)
M201 / C511 (Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the testing of Hydraulic Cements and Concretes)
C67 (Brick: Absorption)
C67 (Brick: Capping)
C67 (Brick: Compressive Strength)
C67 (Brick: Initial Rate of Absorption)
C67 (Brick: Measurement)
C67 (Brick: Specimen Preparation)
C140 (Concrete Interlocking Paving Units) (Sampling and Testing Concrete Masonry Units and Related Units)
C140 (Concrete Masonry Units) (Sampling and Testing Concrete Masonry Units and Related Units)
C140 (Segmental Retaining Wall Units) (Sampling and Testing Concrete Masonry Units and Related Units)
C1012 (Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution)
C1262 (Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related Concrete Units)
C1314 (Compressive Strength of Masonry Prisms)
C1437 (Flow of Hydraulic Cement Mortar)
C1506 (Water Retention of Hydraulic Cement-Based Mortars and Plasters)
C1552 (Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing)
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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