CTL Engineering, Inc.
Columbus,
Ohio
View Accreditation Certificate
Marc
Montgomerry
2860 Fisher Road
Columbus
,
Ohio
43204
Phone: (614) 276-8123
Fax:
mmontgomery@ctleng.com
http://www.ctleng.com
Quality Management System - accredited since 5/1/1999
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3740 (Soil), E329 (Aggregate), E329 (Concrete), E329 (Soil), E329 (Sprayed Fire-Resistive Material)
Asphalt Mixture - accredited since 7/21/2021
T166 (Cores), D2726 (Cores)
Soil - accredited since 5/1/1999
R58, T88, T89, T90, T99, T100, T180, T193, T208, T215, T216, T236, T265, T267, T296, T297, T310, D421, D422, D698, D854, D1140, D1557, D1883, D2166, D2216, D2434, D2435, D2487, D2488, D2850, D2974, D3080, D4318, D4767, D5084, D6913, D6938, D7928
Rock - accredited since 5/26/2011
D4543, D4644, D5731, D7012 (Method C)
Aggregate - accredited since 9/1/1999
R76, R90, T11, T19, T21, T27, T84, T85, T96, T104, T112, T176, T255, T304, C29, C40, C88, C117, C127, C128, C131, C136, C142, C566, C702, C1252, D75, D2419, D4791
Sprayed Fire-Resistive Material - accredited since 2/12/2016
E605, E736
Concrete - accredited since 9/1/1999
M201, R39, R60, R100 (Beams), R100 (Cylinders), R115, T22, T97, T119, T121, T152, T160, T177, T196, T231 (6000 psi and below), T277, T303, T309, C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C157, C172, C173, C192, C231, C293, C305, C511, C512, C617 (6000 psi and below), C1064, C1202, C1231 (10000 psi and below), C1260, C1293, C1567
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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