Llewellyn and Associates, Inc. dba Construction Materials Laboratory
Knoxville,
Tennessee
View Accreditation Certificate
Johnny R.
Quillen
10840 Murdock Drive
Knoxville
,
Tennessee
37932
Phone: (865) 573-6122
Fax:
jquillencml@aol.com
http://constructionmaterialslaboratory.com
26-2258 : Accreditation has been suspended for Concrete standard(s) M201, R39, R60, R100 (Cylinders), T22, T119, T121, T152, T231 (6000 psi and below), T309, C31 (Cylinders), C39, C138, C231, C617 (6000 psi and below), C1064, C1231 (6000 psi and below)
26-2258 : Accreditation has been suspended for Quality Management System standard(s) C1077 (Concrete), E329 (Concrete)
Quality Management System - accredited since 10/18/2016
R18, C1077 (Aggregate), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Soil)
Asphalt Mixture - accredited since 10/18/2016
R68, T30, T164 (Mineral Matter Not Determined), T166, T209, T245, T269, T308, T355, D2041, D2172 (Mineral Matter Not Determined), D2726, D2950, D3203, D3549, D4867, D5444, D6307, D6926, D6927
Soil - accredited since 10/18/2016
R58, T88, T89, T90, T99, T180, T193, T208, T265, T289, T296, T297, T310, D421, D422, D698, D854, D1140, D1557, D1883, D2166, D2216, D2487, D2850, D4318, D4718, D4767, D5084, D6913, D6938
Aggregate - accredited since 10/18/2016
R76, T11, T19, T21, T27, T84, T85, T96, T104, T112, T113, T176, T255, T304, T330, C29, C40, C88, C117, C123, C127, C128, C131, C136, C142, C535, C566, C702, C1252, D2419, D4791
Concrete - accredited since 9/12/2019
C143, C172, C192, C511
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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