AASHTO T 89-13（2021） Standard Method of Test for Determining the Liquid Limit of Soils.pdf
文档页数：12文档大小：2.19MB文档格式：pdfStandard Method of Test for Determining the Liquid Limit of Soils AASHTO Designation:T 89-13(2021) Technically Revised:2013 Reviewed but Not Updated:2021 Editorially Revised:2021 Technical Submittee:1a Soil and Unbound Recycled Materials AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington DC 20004 Standard Method of Test for Determining the Liquid Limit of Soils AASHTO Designation:T 89-13(2021) AASHIO Technically Revised:2013 Reviewed but Not Updated:2021 Editorially Revised:2021 Technical Submittee:1a Soil and Unbound Recycled Materials 1. SCOPE 1.1. The liquid limit of a soil is that water content as determined in accordance with the following procedure at which the soil passes from a plastic to a liquid state. 1.2. The following applies to all specified limits in this standard:For the purposes of determining conformance with these specifications an observed value or a calculated value shall be rounded off“to the nearest unit'"in the last right-hand place of figures used in expressing the limiting value in accordance with ASTM E29. 1.3. The quality of the results produced by this standard are dependent on the petence of the personnel performing the procedure and the capability calibration and maintenance of the equipment used.Agencies that meet the criteria of R 18 are generally considered capable of petent and objective testing/sampling/inspection/etc.Users of this standard are cautioned that pliance with R 18 alone does not pletely assure reliable results.Reliable results depend on many factors;following the suggestions of R 18 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M231 Weighing Devices Used in the Testing of Materials ◆ R 18 Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories ■ R 58 Dry Preparation of Disturbed Soi...
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