Accreditation

Landmark Testing and Engineering is currently AASHTO Accredited at our main facility in St. George, Utah in the following disciplines:

AASHTO – Quality Management System

  • R18 Establishing and Implementing a Quality System for Construction Materials Testing Laboratories
    C1077 (Aggregate) Laboratories Testing Concrete and Concrete Aggregates
    C1077 (Concrete) Laboratories Testing Concrete and Concrete Aggregates
    C1093 (Masonry) Accreditation of Testing Agencies for Unit Masonry
    D3666 (Aggregate) Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
    D3666 (Asphalt Mixture) Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
    D3740 (Soil) Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used In Engineering Design and Construction
    E329 (Aggregate) Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction
    E329 (Asphalt Mixture) Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction
    E329 (Concrete) Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction
    E329 (Soil) Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction

AASHTO – Emulsified Asphalt

  • T59 Freezing
    T59 Particle Charge
    T59 Residue by Distillation
    T59 Residue by Evaporation
    T59 Saybolt Viscosity at 25°C (77°F)
    T59 Saybolt Viscosity at 50°C (122°F)
    T59 Settlement and Storage Stability
    T59 Sieve Test
    D6929 Freezing
    D6930 Settlement and Storage Stability
    D6933 Sieve Test
    D6934 Residue by Evaporation
    D6997 Residue by Distillation
    D7402 Particle Charge
    D7496 Saybolt Viscosity at 25°C (77°F)
    D7496 Saybolt Viscosity at 50°C (122°F)

AASHTO – Asphalt Mixture

  • R30 Mixture Conditioning of Hot Mix Asphalt (HMA)
    R35 Superpave Volumetric Design for Hot Mix Asphalt (HMA)
    R47 Reducing Samples of Hot-Mix Asphalt to Testing Size
    R68 Preparation of Asphalt Mixtures by Means of the Marshall Apparatus
    R97 Sampling Bituminous Paving Mixtures
    T30 Mechanical Analysis of Extracted Aggregate
    T166 Bulk Specific Gravity of Compacted Hot Mix Asphalt Using Saturated Surface-Dry Specimens
    T209 Maximum Specific Gravity of Hot Mix Asphalt Paving Mixtures
    T245 Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus
    T269 Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures
    T283 Resistance of Compacted Mixtures to Moisture Induced Damage
    T305 Draindown Characteristics of HMA
    T308 Determining the Asphalt Content of Hot Mix Asphalt (HMA) by the Ignition Method
    T312 Preparing and Determining the Density of Hot Mix Asphalt (HMA) Specimens by Means of the Superpave Gyratory Compactor
    T329 Moisture Content of Hot-Mix Asphalt (HMA) by Oven Method
    T331 Bulk Specific Gravity of Compacted Bituminous Mixtures Using Automatic Vacuum Sealing Method
    T355 Density of Bituminous Concrete in Place by Nuclear Methods
    D979 Sampling Bituminous Paving Mixtures
    D1188 Bulk Specific Gravity of Compacted Bituminous Mixtures Using Paraffin-Coated Specimens
    D2041 Maximum Specific Gravity of Hot mix Asphalt Paving Mixtures
    D2726 Bulk Specific Gravity of Compacted Hot Mix Asphalt Using Saturated Surface-Dry Specimens
    D2950 Density of Bituminous Concrete in Place by Nuclear Methods
    D3203 Percent Air Voids in Compacted Dense and Open Bitumminous Paving Mixtures
    D3549 Thickness or Height of Compacted Bituminous Paving Mixture Specimens
    D4867 Resistance of Compacted Mixtures to Moisture Induced Damage
    D5444 Mechanical Analysis of Extracted Aggregate
    D6307 Determining the Asphalt Content of Hot Mix Asphalt (HMA) by the Ignition Method
    D6390 Draindown Characteristics of HMA
    D6752 Bulk Specific Gravity of Compacted Bituminous Mixtures Using Automatic Vacuum Sealing Method
    D6925 Preparing and Determining the Density of Hot Mix Asphalt (HMA) Specimens by Means of the Superpave Gyratory Compactor
    D6926 Preparation of Asphalt Mixtures by Means of the Marshall Apparatus
    D6927 Resistance to Plastic Flow of Asphalt Mixtures Using Marshall Apparatus

AASHTO – Soil

  • R58 Dry Preparation of Disturbed Soil and Soil Aggregate Samples for Test
    R74 Wet Preparation of Disturbed Soil Samples for Test
    T89 Determining the Liquid Limit of Soils (Atterberg Limits)
    T90 Plastic Limit of Soils (Atterberg Limits)
    T99 The Moisture-Density Relations of Soils Using a 5.5 lb [2.5kg] Rammer and a 12in. [305 mm] Drop
    T100 Specific Gravity of Soils T134 Moisture-Density Relations of Soil-Cement Mixtures
    T135 Wetting and Drying Test of Compacted Soil-Cement Mixtures
    T180 Moisture-Density Relations of Soils Using a 10 lb [4.54kg] Rammer and an 18 in. [457 mm] Drop
    T191 Density of Soil In-Place by the Sand Cone Method
    T193 California Bearing Ratio
    T265 Laboratory Determination of Moisture Content of Soils
    T310 In-place Density and Moisture Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)
    D421 Dry Preparation of Disturbed Soil and Soil Aggregate Samples for Test
    D558 Moisture-Density Relations of Soil-Cement Mixtures
    D559 Wetting and Drying Test of Compacted Soil-Cement Mixtures
    D698 The Moisture-Density Relations of Soils Using a 5.5 lb [2.5kg] Rammer and a 12in. [305 mm] Drop
    D854 Specific Gravity of Soils D1556 Density of Soil In-Place by the Sand Cone Method
    D1557 Moisture-Density Relations of Soils Using a 10 lb Rammer and an 18 in. Drop
    D1633 Compressive Strength of Molded Soil-Cement Cylinders
    D1883 California Bearing Ratio
    D2216 Laboratory Determination of Moisture Content of Soils
    D2487 Classification of Soils for Engineering Purposes (Unified Soil Classification System)
    D4318 Determining the Liquid Limit of Soils (Atterberg Limits)
    D4318 Plastic Limit of Soils (Atterberg Limits)
    D4718 Oversize Particle Correction
    D6938 In-place Density and Moisture Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)

AASHTO – Aggregate

  • R76, Reducing Samples of Aggregate to Testing Size
    R90 Sampling Aggregate
    T11 Materials Finer Than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing
    T19 Bulk Density ("Unit Weight") and Voids in Aggregate
    T21 Organic Impurities in Fine Aggregates for Concrete
    T27 Sieve Analysis of Fine and Coarse Aggregates
    T84 Specific Gravity (Relative Density) and Absorbtion of Fine Aggregate
    T85 Specific Gravity and Absorbtion of Coarse Aggregate
    T96 Resistance to Abrasion of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
    T100 (Mineral Filler) Specific Gravity of Mineral Filler on Asphalt Mixture Designs
    T104 Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate
    T112 Clay Lumps and Friable Particles in Aggregate
    T113 Lightweight Pieces in Aggregate
    T176 Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test
    T210 Aggregate Durability Index T255 Total Moisture Content of Aggregate by Drying
    T304 Uncompacted Void Content of Fine Aggregate (Influenced by Shape, Texture, and Grading)
    T335 Determining the Percentage of Fractured Particles in Coarse Aggregate
    C29 Bulk Density ("Unit Weight") and Voids in Aggregate
    C40 Organic Impurities in Fine Aggregates for Concrete
    C88 Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate
    C117 Materials Finer Than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing
    C123 Lightweight Pieces in Aggregate
    C127 Specific Gravity and Absorbtion of Coarse Aggregate
    C128 Specific Gravity (Relative Density) and Absorbtion of Fine Aggregate
    C131 Resistance to Abrasion of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
    C136 Sieve Analysis of Fine and Coarse Aggregates
    C142 Clay Lumps and Friable Particles in Aggregate
    C535 Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
    C566 Total Moisture Content of Aggregate by Drying
    C702 Reducing Samples of Aggregate to Testing Size
    C1252 Uncompacted Void Content of Fine Aggregate (Influenced by Shape, Texture, and Grading)
    D75 Sampling Aggregate
    D2419 Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test
    D3744 Aggregate Durability Index
    D4791 Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate
    D5821 Determining the Percentage of Fractured Particles in Coarse Aggregate

AASHTO – Sprayed Fire-Resistive Material

  • E605 Thickness and Density of Sprayed Fire-Resistive Material(SFRM) Applied to Structural Members

AASHTO – Asphalt Binder

  • T49 Penetration of Original Sample of Asphalt Cement
    D5 Penetration of Original Sample of Asphalt Cement

AASHTO - Concrete

  • M201 Moist Cabinets, Moist Rooms and Water Storage Tanks Used in the testing Of Hydraulic Cements and Concretes
    R39 Making and Curing Concrete Test Specimens in the Laboratory
    R60 Sampling Freshly Mixed Concrete
    R100 Making and Curing Concrete Test Specimens in the Field
    T22 Compressive Strength of Cylindrical Concrete Specimens
    T97 Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)
    T119 Slump of Hydraulic Cement Concrete
    T121 Density (Unit Weight), Yield, and Air Content of Concrete
    T152 Air Content of Freshly Mixed Concrete by the Pressure Method T160 Length Change of Hardened Hydraulic-Cement, Mortar and Concrete T196 Air Content of Freshly Mixed Concrete by the Volumetric Method T231 (7000 psi and below) Capping Cylindrical Concrete Specimens T303 Potential Alkali Reactivity of Aggregate (Mortar-Bar Method)
    T309 Temperature of Freshly Mixed Portland Cement Concrete
    C31 Making and Curing Concrete Test Specimens in the Field
    C39 Compressive Strength of Cylindrical Concrete Specimens
    C78 Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)
    C138 Density (Unit Weight), Yield, and Air Content of Concrete
    C143 Slump of Hydraulic Cement Concrete
    C157 Length Change of Hardened Hydraulic-Cement, Mortar and Concrete
    C172 Sampling Freshly Mixed Concrete
    C173A ir Content of Freshly Mixed Concrete by the Volumetric Method
    C192 Making and Curing Concrete Test Specimens in the Laboratory
    C227 Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method)
    C231 Air Content of Freshly Mixed Concrete by the Pressure Method
    C511 Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the testing of Hydraulic Cements and Concretes
    C617 (7000 psi and below) Capping Cylindrical Concrete Specimens
    C1064 Temperature of Freshly Mixed Portland Cement Concrete
    C1231 (11000 psi and below) Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders
    C1260 Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)
    C1293 Determination of Length Change of Concrete Due to Alkali-Silica Reaction
    C1567 Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar-Bar Method)

AASHTO - Masonry

  • C140 (Concrete Masonry Units) Sampling and Testing Concrete Masonry Units and Related Units
    C511 Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the testing of Hydraulic Cements and Concretes
    C1314, Compressive Strength of Masonry Prisms
    C1552, Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing

As a method of maintaining the above accreditation, Landmark Testing and Engineering is actively engaged in various proficiency sampling programs through AASHTO re:source and CCRL