Quality assurance and quality control are the most vital aspects of a construction project. The Big Apple construction materials testing laboratory is capable of testing soils, concrete, masonry, aphalt and aggregates to ensure that design criteria are met, and potentially costly setbacks are avoided by implementing permeability, strength, consolidation, index/identification, and specialty testing.

**All material testings are done by a third-party laboratory

Equipment and Facilities

Our partner facility is equipped with state of the art furnaces, sieve shakers, compactors and other equipment the allows the Big Apple Group to provide full-service construction materials testing for both public and private projects.

Big Apple Group’s third-party lab is fully accredited and licensed to provide testing of concrete, aggregate, soil, asphalt, masonry, and fire resistive materials.

Aggregate Testing

Aggregate quality is established and monitored by performing such laboratory tests as gradation analysis, specific gravity, absorption, soundness, freeze/thaw, abrasion, deletrious substances, and acid solubility.

Asphalt Mixture

Modern construction practices involving asphalt require consideration of such factors as durability and adaptability to fast track construction and proper performance under specialized applications. Asphalt concrete mixes can be designed using local materials that best fit roadway and airport needs.

  • Extraction/AC Content
  • Bulk Specific Gravity
  • Maximum Specific Gravity Gradation
  • Air Voids

Laboratory Services

  • Soil classification
  • Strength parameters
  • Consolidation
  • Compaction
  • Permeability
  • Soil cement
  • Triaxial
  • Relative density

Soil & Environmental Testing

Soil strength and compressibility necessary to support buildings and pavements are highly dependent on the soil plasticity, density, and moisture content.

Laboratory tests are performed to define soil properties and identify those soils that do not conform to project specifications. For moisture content, strength and stability, the early identification of issues helps avoid future problems and allows for the correction of problems during construction.

Soil Testing

  • ASTM D422 Hydrometer
  • ASTM D4318 Soil Cohesion
  • Atterberg Limits
  • ASTM D698 Proctor
  • ASTM D1557 Modified Proctor
  • ASTM C40 Organic Impurities
  • ASTM C114 Loss on Ignition
  • ASTM C142 Clay Lumps and Friable Particles
  • ASTM C136 Sieve Analysis w/Wash
  • ASTM C29 Loose Bulk Density
  • ASTM C127 Specific Gravity
  • ASTM C88 – Soundness
  • ASTM C131 LA Abrasion
  • ASTM D4791 Flat and Elongated Particles
  • ASTM D3080 Direct Shear
  • ASTM D4972 PH Testing
  • ASTM F1647 Organic Content
  • ASTM D5856 Saturated Hydraulic Conductivity

Environmental Testing

  • VOCs
  • SVOCs (PAH)
  • RCRA Metals
  • TCLP Metals
  • R-I-C and PCBs

Concrete Testing

When it comes to servicing the needs of the construction industry, no other company is better equipped to provide you a full service Concrete Testing solution than the Big Apple Group.

Concrete Testing TR-2 (NYC)

Concrete being poured at any building under construction within New York City is required to be tested to ensure compliance with the project’s structural design requirements. TR2 Technical Reports are submitted to the New York City Department of Buildings prior to the issuance of a building permit. This Technical Report identifies the Big Apple Group as an inspection agency that will perform the concrete testing and inspections. With each inspection, a new TR2 is submitted with accompanying test results to the DOB. This report is also required prior to sign off to certify completion of concrete pouring, sampling and compression test cylinders.

  • ASTM C42 Compressive Strength Testing
  • ASTM 457 Air Content
  • ASTM C1218 Chloride Testing
  • ASTM C666 Freeze Thaw
  • ASTM C1202 Carbonation
  • ASTM C856 Petrographic Analysis

Concrete Mix Design

Concrete mix design is the process of finding right proportions of cement, sand and aggregates for concrete to achieve target strength in structures. The standard for designing a concrete mix is ACI 211.1, Proportions for Normal, Heavyweight, and Mass Concrete.

TR-3 (NYC)

TR-3 Technical Forms are required to be filed in order to certify the mix designs with the New York City Department of Buildings before your project can begin. The Big Apple Group provides will ensure that concrete mix designs meet your specific requirements while providing a clear cut and efficient certification process throughout the project.