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D5519-15 – Standard Test Method Technical Guide
📐 Scope and Applicability
These test methods cover the particle size and mass analysis of natural and man-made riprap and related materials, including filter stone or coarse bedding materials. These methods are generally intended for riprap and related materials and are applicable for mixtures of stones screened from natural deposits, blast rock, processed materials from quarried rock, or recycled concrete. They are applicable for sizes 3 in. (75 mm) and above, with the upper size limited only by equipment available for handling and determining the mass of the individual particles. Four alternate procedures are provided, and specifiers must indicate the test procedure used.
⚙️ Test Procedures and Precision
All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026. For purposes of comparing measured or calculated value(s) with specified limits, the measured or calculated value(s) shall be rounded to the nearest decimal or significant digits in the specified limits. The procedures used are regarded as the industry standard. The values stated in inch-pound units are to be regarded as the standard, with SI units in parentheses for information only. The gravitational system of inch-pound units is used, where the pound (lbf) represents a unit of force (weight), and the unit for mass is slugs.
📊 Key Measured Properties and Standards
The test methods focus on particle size distribution and mass of individual particles. The following tables summarize the test procedures and referenced standards.
| 🟦 Aspect | 📐 Description |
|---|---|
| Scope | Particle size analysis for riprap and related materials |
| Size Range | 3 in. (75 mm) and above |
| Procedures | Four alternate procedures with varying effort and precision |
| Units | Inch-pound units standard; SI in parentheses |
| 📜 Standard | 📄 Title |
|---|---|
| C136 | Sieve Analysis of Fine and Coarse Aggregates |
| D653 | Terminology Relating to Soil, Rock, and Contained Fluids |
| D3740 | Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock |
| D4992 | Practice for Evaluation of Rock to be Used for Erosion Control |
| D5240 | Testing Rock Slabs to Evaluate Soundness of Riprap by Use of Sodium Sulfate or Magnesium Sulfate |
| D5312 | Evaluation of Durability of Rock for Erosion Control Under Freezing and Thawing Conditions |
| D5313 | Evaluation of Durability of Rock for Erosion Control Under Wetting and Drying Conditions |
⚠️ Important: Specifiers must indicate which test procedure is used, as there is a wide range in the level of effort and precision. Test reports should clearly indicate the procedure used.
💡 Note: The values stated in inch-pound units are regarded as standard. While conducting these test methods, it may be convenient to collect data on other attributes, such as the amount of slab pieces and deleterious materials.
❓ Frequently Asked Questions
🔍 What is the primary purpose of ASTM D5519-15?
The standard provides test methods for particle size and mass analysis of natural and man-made riprap and related materials, including filter stone or coarse bedding materials, for sizes 3 in. (75 mm) and above.
💡 What materials are covered by these test methods?
The methods are applicable for mixtures of stones from natural deposits, blast rock, processed quarried rock, or recycled concrete.
⚡ How are significant digits and rounding handled?
Values must conform to Practice D6026, with rounding to the nearest decimal or significant digits in specified limits. The procedures are industry standards, but users may adjust based on material variation and objectives.
📌 What safety considerations are mentioned?
The standard does not address all safety concerns. Users should establish appropriate safety and health practices and determine applicable regulatory limitations. Specific precautions are given in Section 7.