Aggregates
Our laboratory has the equipment and staff knowledge, experience, and expertise to perform many standard and uncommon tests on aggregate used in the construction industry. Our staff is well versed in ASTM, AASHTO, CSA, USACE, and EN test procedures and have the flexibility to perform many tests outside our standard services when called upon. We can perform on-site sampling or perform testing on samples shipped to us. Testing includes standard physical properties, petrography, abrasion resistance, chemical attack, freeze-thaw durability, and many others.
Our Testing Capabilities
Between our aggregate, mortar, and concrete lab and our petrographic group we can perform all analysis methods included in ASTM C1778, “Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete”, and AASHTO R80, “Standard Practice for Determining the Reactivity of Concrete Aggregates and Selecting Appropriate Measures for Preventing Deleterious Expansion in New Concrete Construction.” We also have the capabilities to perform additional test methods not included in the C1778 guide, both current methods and withdrawn methods.
Aggregate Testing
| Test # | Name | Description |
| ASTM C33 | Standard Specification for Concrete Aggregates | Specification |
| ASTM C330 | Standard Specification for Lightweight Aggregates for Structural Concrete | Specification |
| ASTM C331 | Standard Specification for Lightweight Aggregates for Concrete Masonry Units | Specification |
| ASTM C1761 | Standard Specification for Lightweight Aggregate for Internal Curing of Concrete | Specification |
| ASTM C144 | Standard Specification for Aggregate for Masonry Mortar | Specification |
| ASTM C131 (AASHTO T96) | Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine | Abrasion Resistance |
| ASTM C535 | Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine | Abrasion Resistance |
| ASTM D6928 (AASHTO T327) | Standard Test Method for Resistance of Coarse Aggregate to Degradation by Abrasion in the Micro-Deval Apparatus | Abrasion Resistance |
| Nordic Abrasion Test Method EN 1097-8 | Tests for mechanical and physical properties of aggregates. Determination of the polished stone value | Abrasion Resistance |
| ASTM C88(AASHTO T104) | Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate | Deleterious Materials |
| ASTM C40 (AASHTO T21) | Standard Test Method for Organic Impurities in Fine Aggregates for Concrete | Deleterious Materials |
| ASTM C87 (AASHTO T71) | Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar | Deleterious Materials |
| ASTM C123 (AASHTO T22) | Standard Test Method for Lightweight Particles in Aggregate | Deleterious Materials |
| ASTM C142 (AASHTO T112) | Standard Test Method for Clay Lumps and Friable Particles in Aggregates | Deleterious Materials |
| ASTM C1567 | Standard Test Method for Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar-Bar Method) | ACR/ASR Potential Reactivity |
| ASTM C1260 (AASHTO T303) | Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method) | ACR/ASR Potential Reactivity |
| ASTM C1105 | Standard Test Method for Length Change of Concrete Due to Alkali-Carbonate Rock Reaction | ACR/ASR Potential Reactivity |
| ASTM C586 | Standard Test Method for Potential Alkali Reactivity of Carbonate Rocks as Concrete Aggregates (Rock-Cylinder Method) | ACR/ASR Potential Reactivity |
| ASTM C289 | Standard Test Method for Potential Alkali-Silica Reactivity of Aggregates (Chemical Method) (Withdrawn 2016) | ACR/ASR Potential Reactivity |
| ASTM C227 | Standard Test Method for Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method) (Withdrawn 2018) | ACR/ASR Potential Reactivity |
| AASHTO T 380 | Standard Method of Test for Potential Alkali Reactivity of Aggregates and Effectiveness of ASR Mitigation Measures (Miniature Concrete Prism Test, MCPT) | ACR/ASR Potential Reactivity |
| ASTM C1293 | Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction | ACR/ASR Potential Reactivity |
| ASTM C1646 | Standard Practice for Making and Curing Test Specimens for Evaluating Resistance of Coarse Aggregate to Freezing and Thawing in Air-Entrained Concrete | Freeze-Thaw Durability |
| AASHTO T 103 | Soundness of Aggregates by Freezing and Thawing | Freeze-Thaw Durability |
| NYSDOT 502-3P | Freezing and Thawing, Portland Cement Concrete Cores Standard Specifications | Freeze-Thaw Durability |
| AASHTO TP 139 | Provisional Standard Method of Test for Determining the Relative Density (Specific Gravity) and Absorption of Lightweight Aggregate for Internally Cured Concrete Mixtures |
