ASTM E3331
Standard Test Method for Measuring Target Modulus Using Light Weight Deflectometer (LWD) on Compacted Proctor Mold Samples
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About This Item
ASTM E3331 is the ASTM standard for measuring target modulus using a Light Weight Deflectometer (LWD) on compacted Proctor mold samples. It provides a consistent way to evaluate how a compacted sample responds under a controlled load, which can help support material comparison, quality control, and engineering decisions. By focusing on a repeatable laboratory test setup, this standard helps users obtain more comparable stiffness-related results from compacted soils or similar materials.
What is ASTM E3331?
This standard describes a test method for measuring target modulus on compacted Proctor mold samples with a Light Weight Deflectometer. In practical terms, ASTM E3331 is used to assess the response of a prepared specimen under an applied impact load and to derive a modulus-related value from that response. The title indicates a laboratory-based method tied to Proctor mold preparation, so it is especially relevant where controlled compaction and repeatable testing conditions matter.
Where is ASTM E3331 used?
ASTM E3331 is commonly used in laboratory testing environments where compacted samples are prepared in Proctor molds and evaluated with an LWD device. It is relevant to workflows that need a quick, standardized way to compare the stiffness behavior of compacted materials under controlled conditions. The standard may support material development, mix or compaction checks, and internal testing programs where consistent modulus measurements are needed for decision-making.
Why is ASTM E3331 important?
This ASTM standard matters because it helps improve consistency in modulus-related testing on compacted samples. Using a defined method can reduce variability between tests, support compliance-focused quality control, and make results easier to compare across projects or laboratories. ASTM E3331 also helps buyers, testers, and engineers rely on a common technical reference when evaluating compaction-related performance and documenting test results for procurement or product assessment.
- Light Weight Deflectometer-based measurement
- Compacted Proctor mold sample testing
- Target modulus evaluation
- Laboratory consistency and repeatability
- Quality control and technical comparison
- Publication Date: 2022-12-06
- Publisher: ASTM
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