Testing is typically conducted in two primary steps: and mass measurement .
| Section | Content | |---------|---------| | Scope | Applicability to natural or manufactured fine aggregates passing 4.75 mm sieve | | Referenced Documents | ASTM E11 (sieve), ASTM C670 (precision), etc. | | Terminology | Definitions: SSD, absorption, bulk specific gravity | | Summary of Test | Pycnometer method using a conical mold and tamper | | Apparatus | Pycnometer (Le Chatelier or volumetric flask), oven, balance, mold, tamper | | Sampling | Reduction of field sample to test sample size | | Procedure | Drying, soaking, surface-drying with the cone test, pycnometer calibration | | Calculation | Formulas for Bulk (OD), Bulk (SSD), Apparent SG, Absorption % | | Precision | Single-operator and multi-laboratory tolerances | astm c128 pdf
A conical metal mold and a metal tamper (340g) used to determine the Saturated Surface-Dry (SSD) condition. Testing is typically conducted in two primary steps: