Standard Test Methods for Saturated Hydraulic Conductivity, Water Retention, Porosity, and Bulk Density of Putting Green and Sports Turf Root Zones

ABSTRACT
These test methods cover the standard procedures and related calculations for determining the saturated hydraulic conductivity, water retention, porosity, and bulk density of sand-based root zone mixtures used in the construction and topdressing of golf course putting greens including United States Golf Association (USGA) recommended greens, golf course tees, sand-based sports fields, and other highly trafficked turfgrass areas. These test methods are not designed for use with fine or medium textured soils such as sandy loams and loams. Test Method A is used to determine the saturated hydraulic conductivity by maintaining water flow through the core at a constant hydraulic head until a steady flow rate is achieved, at which time aliquots of the outflow are collected. Test Method B, on the other hand, is used to determine water retention and bulk density. Water retention is obtained at a soil suction, wherein water is extracted from a prepared core by means of a tension table or other water extraction apparatus. And when equilibrium is achieved after the core has been oven dried, the weight is recorded. Bulk density is, then, calculated from the mix or sand dry weight and volume. Test Method C is used to calculate the total porosity from the bulk density and particle density. And lastly, Test Method D is used to calculate the capillary and air-filled porosities. Capillary porosity is calculated from the bulk density and water retention information, while, the air-filled or aeration porosity is calculated from the difference of the total and capillary porosities.
SCOPE
1.1 These test methods cover the measurements of saturated hydraulic conductivity, water retention, porosity (including distribution of capillary and air-filled porosity at a known soil suction), and bulk density on sand-based root zone mixes to be used for construction and topdressing of golf course putting greens including United States Golf Association (USGA) recommended greens, golf course tees, sand-based sports fields, or other highly trafficked turfgrass areas. These test methods are designed for sand-based mixes and are not intended for use with fine or medium textured soils, for example, sandy loams and loams.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.
This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to its use.

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Historical
Publication Date
14-Nov-2006
Current Stage
Ref Project

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ASTM F1815-06 - Standard Test Methods for Saturated Hydraulic Conductivity, Water Retention, Porosity, and Bulk Density of Putting Green and Sports Turf Root Zones
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation:F1815–06
Standard Test Methods for
Saturated Hydraulic Conductivity, Water Retention, Porosity,
and Bulk Density of Putting Green and Sports Turf Root
1
Zones
This standard is issued under the fixed designation F1815; 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. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D4959 Test Method for Determination of Water (Moisture)
Content of Soil By Direct Heating
1.1 These test methods cover the measurements of saturated
D5550 Test Method for Specific Gravity of Soil Solids by
hydraulic conductivity, water retention, porosity (including
Gas Pycnometer
distribution of capillary and air-filled porosity at a known soil
E11 SpecificationforWovenWireTestSieveClothandTest
suction), and bulk density on sand-based root zone mixes to be
Sieves
used for construction and topdressing of golf course putting
F1647 Test Methods for Organic Matter Content of Putting
greens including United States Golf Association (USGA)
Green and Sports Turf Root Zone Mixes
recommended greens, golf course tees, sand-based sports
fields, or other highly trafficked turfgrass areas. These test
3. Summary of Test Method
methods are designed for sand-based mixes and are not
3.1 Test Method A—Saturated hydraulic conductivity is
intended for use with fine or medium textured soils, for
determined on compacted, saturated mix or sand soil cores.
example, sandy loams and loams.
Water flow through the core is maintained at a constant
1.2 The values stated in SI units are to be regarded as the
hydraulic head until a steady flow rate is achieved, at which
standard. The inch-pound units given in parentheses are for
time aliquots of the outflow are collected.
information only.
3.2 Test Method B—Water retention is obtained at a soil
1.3 This standard does not purport to address all of the
suction as defined by the design architect or engineer in the
safety concerns associated with its use. It is the responsibility
specifications. In lieu of a specification, or if testing for USGA
of the user of this standard to establish appropriate safety and
greens, the water retention shall be determined at a soil suction
health practices and determine the applicability of regulatory
of 30 cm.The water shall be extracted from a prepared core by
limitations prior to its use.
means of a tension table or other water extraction apparatus.
2. Referenced Documents Whenequilibriumisachieved,theweightisrecorded.Thecore
2
is oven dried at 105°C until a constant weight is obtained.
2.1 ASTM Standards:
Water retention is calculated on an oven dried basis. Bulk
D854 Test Methods for Specific Gravity of Soil Solids by
density is calculated from the mix or sand dry weight and
Water Pycnometer
volume.
D2216 Test Methods for Laboratory Determination of Wa-
3.3 Test Method C—Total porosity is calculated from the
ter (Moisture) Content of Soil and Rock by Mass
bulk density and particle density.
D2974 Test Methods for Moisture,Ash, and Organic Matter
3.4 Test Method D—Capillary porosity is calculated from
of Peat and Other Organic Soils
the bulk density and water retention information. Air-filled or
D4643 Test Method for Determination of Water (Moisture)
aeration porosity is calculated from the difference of total and
Content of Soil by Microwave Oven Heating
capillary porosity.
1
4. Apparatus
These test methods are under the jurisdiction of ASTM Committee F08 on
Sports Equipment and Facilities and are the direct responsibility of Subcommittee
4.1 Cylinders, made of metal, PVC, or similar rigid mate-
F08.64 on Natural Playing Surfaces.
rials shall have an inside diameter of 51 or 76+2mm(2or3
Current edition approved Nov. 15, 2006. Published December 2006. Originally
approved in 1997. Last previous edition approved in 1997 as F1815 – 97 which was + 0.08 in.), and a height of 76+2mm(3+ 0.08 in.).
withdrawn inAugust 2006 and reinstated in December 2006. DOI: 10.1520/F1815-
4.2 Compactor, shall be such as to exert a total potential
06.
2 2
energy of 3.03 J/cm (14.3 ft-lb/in. ) across the cross-sectional
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
area of the core. Fig. 1 shows an example of such a device
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
whereaweightedhammerisdropped15timesfromaheightof
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F1815–06
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