Astm d6938 free download

Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are as essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.

Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website.

These cookies do not store any personal information. Document Center Inc. The following bibliographic material is provided to assist you with your purchasing decision:. Scope 1. Keywords Compaction test; acceptance testing; construction control; quality control; field density; in-place density; wet density; water content; dry density; nuclear methods, nuclear gauge To find similar documents by ASTM Volume: Standard Test Methods for In-Place Density and Water Content of Soil and Soil- Aggregate by Nuclear Methods Shallow Depth 1 This standard is issued under the fixed designation D; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

A number in parentheses indicates the year of last reapproval. The 1. The direct transmission is Measurements for water moisture content are taken at the the preferred method. This places 1. In addition, they are representative of the sample wet density Section Most gauges display this significant digits that should generally be retained.

The proce- value directly. The commensurate with these considerations. It is beyond the scope water mass per unit volume is determined by the thermalizing of this standard to consider significant digits used in analysis or slowing of fast neutrons by hydrogen, a component of water. The neutron source and the thermal neutron detector are both 1. The water safety concerns, if any, associated with its use.

It is the content most prevalent in engineering and construction activi- responsibility of the user of this standard to establish appro- ties is known as the gravimetric water content, w, and is the priate safety, health, and environmental practices and deter- mine the applicability of regulatory limitations prior to use. Published December Originally approved in Last previous edition approved in as D— No further reproductions authorized.

Referenced Documents 3. Place by the Rubber Balloon Method 3. D Practice for Description and Identification of Soils 3. Soil and Rock by Microwave Oven Heating 4. D Test Method for Field Determination of Water Mois- The nondestructive nature allows repetitive measurements at a ture Content of Soil by the Calcium Carbide Gas Pressure single test location and statistical analysis of the results. Data 4. See 5. Terminology is dependent on the competence of the personnel performing it, and the 3. Agencies that meet the criteria of Practice D are generally considered capable of competent tions.

Users of this 3. Reliable results depend on many factors; Practice D provides a means of evaluating some of those factors. Interferences 5. Excessive voids in the. Excessive use of fill material to compensate for these voids 6. Where checking instrument operation, correction of source decay, and lack of uniformity in the soil due to layering, aggregate or to establish conditions for a reproducible reference count rate.

Method, guiding the drive pin to prepare a perpendicular hole. Where probe in the Direct Transmission Instrument used to prepare a lack of uniformity in the soil due to layering, aggregate or hole in the test site for inserting the probe.

Verify proper clearance and that chairs are. Most gauges display this value directly. The density of the test sample in mass per unit volume is calculated by comparing the detected rate of gamma radiation with previously established calibration data. Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results.

The values in inch-pound units ft — lb units are provided for information only. Additional charges may be incurred if your order requires multiple shipments. This does not apply to complete sets and sections. By purchasing a subscription and clicking through this agreement, you are entering into a contract, and acknowledge that you have read this License Agreement, that you understand it and agree to be bound by its terms. All rights reserved.

Authorized Users: any individual who has subscribed to this Product; if a Site License, also includes registered students, faculty or staff member, or employee of the Licensee, at the Single or Multiple Site. Limited License. ASTM grants Licensee a limited, revocable, nonexclusive, non-transferable license to access, by means of one or more authorized IP addresses, and according to the terms of this Agreement, to make the uses permitted and described below, each ASTM Product to which Licensee has subscribed.

Neither the electronic file nor the single hard copy print may be reproduced in anyway. In addition, the electronic file may not be distributed elsewhere over computer networks or otherwise. That is, the electronic file cannot be emailed, downloaded to disk, copied to another hard drive or otherwise shared. The single hard copy print may only be distributed to others for their internal use within your organization; it may not be copied.

The individual Document downloaded may not otherwise be sold or resold, rented, leased, lent or sub-licensed. Any other use is prohibited, is a violation of this Agreement and can result in immediate termination of this License. Inclusion of print or electronic copies in coursepacks or electronic reserves, or for distance learning use, is not authorized by this License and is prohibited without ASTM's prior written permission.