Nelson Testing Laboratories (NTL) is an international materials testing laboratory located in Schaumburg, Illinois. Formerly Robert L. Nelson & Associates, NTL has provided reliable, prompt and practical solutions to our clients’ laboratory testing needs for over 25 years. Please find below an abbreviated list of our laboratory testing services related to these construction fields. In addition to the test methods listed, our technicians at NTL have the capabilities to perform many other test methods on your behalf. We can utilize our vast and unique experiences to either modify or create entirely new test methods to fulfill your specific testing needs.

• Inspected and/or certified by AASHTO, CCRL and Illinois Department of Transportation - ASTM C 1077
• Compression Testing - ASTM C 39 (AASHTO T 22)
• Flexural Testing - ASTM C 78 (AASHTO T 97) and ASTM C 293 (AASHTO T 177)
• Shrinkage - ASTM C 157 (AASHTO T 160)
• Salt Scaling - ASTM C 672
• Freeze-Thaw Resistance - ASTM C 666 (AASHTO T 161)
• Chloride Penetration - ASTM C 1202 (AASHTO T 277)
• Cement - ASTM C 465
• Chemical and Petrographic Examination - ASTM C 856

• Inspected and/or certified by AASHTO, CCRL and Illinois Department of Transportation under ASTM C 1077
• Concrete Aggregates - ASTM C 33
• Lightweight Aggregates- ASTM C 330 and ASTM C 331
• Alkali-Silica Reaction - ASTM C 1260, ASTM C 1293, and ASTM C 1576

• Inspected and/or certified by AASHTO and CCRL under ASTM C 1093
• Brick - ASTM C 67 and ASTM C 216
• Concrete Masonry Units - ASTM C 90, C 140, C 1262 and C 1372
• Stone – ASTM C 97, ASTM C 99, ASTM C 170, ASTM C 482, ASTM C 880
• Mortars - ASTM C 270, ASTM C 387, ASTM C 1072, ASTM C 1314 and ASTM C 1329
• Grout - ASTM C 476 and ASTM C 1019
• Lime - ASTM C 206, ASTM C 207 and ASTM C 110
• Cement - ASTM C 91
• Autoclaved Aerated Concrete - ASTM 1386
• Water Penetration Wall Testing - ASTM E 514
• Chemical and Petrographic Examination - ASTM C 1324

• Admixtures - ASTM C 260 and ASTM C 494
• Exterior Coatings - ASTM G 154, ASTM G 155, ASTM E 96, ASTM C 672, ASTM D 968, ASTM D 1653, ASTM D 6578
• Water Repellents - ASTM E 514, ASTM C 413
• Concrete Sealers - Alberta Test, NCHRP, ASTM C 672, ASTM E 96
• Cementitious Repair Mortars - ASTM C 928, AASHTO T 259/T 260, ASTM C 109, ASTM C 157, ASTM C 469, ASTM C 496, ASTM C 1581, and Resistivity
• Grouts - ASTM C 1107, ASTM C 1090
• Epoxies - ASTM C 881 and ASTM C 882
• Waterproofing Membranes - ASTM D 5385 and ASTM E 96
• ICRI Data Sheet Protocol - Various Test Methods