200) Sieve in Soils by Washing, D2216 Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass, D2488 Practice for Description and Identification of Soils (Visual-Manual Procedures), D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction, D4083 Practice for Description of Frozen Soils (Visual-Manual Procedure), D4318 Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils, D4427 Classification of Peat Samples by Laboratory Testing, D6913 Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis, E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves, ICS Number Code 93.020 (Earth works. /Length 52

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(75-mm) sieve, and Boulders—particles of rock that will not pass a 12-in. >> 0000002773 00000 n /Length 52 /FormType 1 The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process. �

ASTM(D2487) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. >> /Filter /FlateDecode 0000003131 00000 n endstream stream 0000003013 00000 n

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Reliable testing depends on several factors; Practice D3740 provides a means for evaluating some of those factors.

Note 9 also was added to the standard to cover instances where it is not possible to perform the basic plastic limit or liquid limit test. << endobj /Font lT��?���c>Hb�A�Z���f�S�&�J�j*�S2l��-����q�e�O�����J]at�D�"S!�����'�S��^�(�0�I�Ji���`����o��H�5�w{Cŗ�ݟ'|/��

/Parent 56 0 R /Rect [376.88303 629.52704 401.96103 640.83405] These soils can have expansive characteristics and the use of a borderline symbol (CL/CH, CH/CL) will alert the user of the assigned classifications of expansive potential. Note 5: Notwithstanding the statements on precision and bias contained in this standard: The precision of this test method is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used. 1.2 The group symbol portion of this system is based on laboratory tests performed on the portion of a soil sample passing the 3-in.

The Unified Soil Classification System, the system for classifying soils for engineering purposes, has its origins during WWII, when A. Casagrande developed the Airfield Classification System. endobj 11 pages. /Filter /FlateDecode Since the names and symbols used in this practice to identify the soils are the same as those used in Test Method D2487, it shall be clearly stated in reports and all other >>

This document cannot replace education or experience and should be used in conjunction with professional judgment. Furthermore, the Precision and Bias section was removed, as it also is not applicable. C117 Test Method for Materials Finer than 75-m (No. >> 15 0 obj 0000014509 00000 n

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These soils are further placed into the following groups: well-graded gravel (GW), poorly graded gravel (GP), silty gravel (GM), clayey gravel (GC), well-graded sand (SW), poorly graded sand (SP), silty sand (SM), and clayey sand (SC).

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Not all aspects of this practice may be applicable in all circumstances. x�+� � | endstream 0000004043 00000 n

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4 sieve).

For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.

� Fine-grained soils are classified as silts or clays of a liquid limit either less than 50 or 50 or more. 18 0 obj << Current edition approved Dec. 15, 2017.

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