2021年7月5日 · Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)) 5.1 Soil placed as engineering fill (embankments, foundation pads, road bases) is compacted to a dense state to obtain satisfactory engineering properties such as shear strength, compressibility, or permeability.

This standard is issued under the fixed designation D 1557; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

on approved May 1. 2012. Published June 2012. Originally approved in 1958. Last previous edition approved in 2009 as D1557–09. Method A can be used but oversize correc-tions will be required (See 1.4) and there are no advant. this gradation requirement cannot be met, then Meth. ds B or C may be used. lows per la.

This standard is issued under the fixed designation D1557; 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.

2017年12月30日 · 内容提示： Designation: D 1557 – 02 e1Standard Test Methods forLaboratory Compaction Characteristics of Soil UsingModif i ed Effort (56,000 ft-lbf/ft 3 (2,700 kN-m/m 3 )) 1This standard is issued under the f i xed designation D 1557; the number immediately following the designation indicates the year oforiginal adoption or, in …

D1557-12(2021) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document outlines the ASTM D1557 standard test methods for determining the laboratory compaction characteristics of soil using modified effort. It specifies the equipment, procedures, and alternative methods for testing soil compaction, including the requirements for …

Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft 3 (2,700 kN-m/m 3)) 1 This standard is issued under the fixed designation D1557; the number immediately following the designation indicates the year of original …

2023年6月15日 · ASTM D1557 is a standard test method used to determine the laboratory compaction characteristics of soil. It provides valuable information about the maximum dry density and optimum moisture content of the soil. ASTM D1557 offers a standardized procedure for assessing the laboratory compaction characteristics of soil.

2021年7月5日 · 1.1 These test methods cover laboratory compaction methods used to determine the relationship between water content and dry unit weight of soils (compaction curve) compacted in a 4- or 6-in. (101.6 or 152.4 mm) diameter mold with a 10-lbf. (44.5-N) rammer dropped from a height of 18 in. (457 mm) producing a compactive effort of 56,000 ft-lbf/ft ...

2017年8月16日 · 1.1 These test methods cover laboratory compaction methods used to determine the relationship between water content and dry unit weight of soils (compaction curve) compacted in a 4- or 6-in. (101.6 or 152.4 mm) diameter mold with a 10-lbf. (44.5-N) rammer dropped from a height of 18 in. (457 mm) producing a compactive effort of 56,000 ft-lbf/ft ...