1、Designation:D824919Standard Practice forUse of Rotary Kiln Produced Porous Ceramic as a MineralAmendment in Topsoil Used for Landscaping and RelatedPurposes1This standard is issued under the fixed designation D8249;the number immediately following the designation indicates the year oforiginal adopti
2、on or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers the material characteristics,physi-cal requirements,and samp
3、ling appropriate for the designationof the rotary kiln produced porous ceramic material as amineral amendment.The porous ceramic material can be usedto replace the sand content of a topsoil or it can be blended intoan existing topsoil.Typically 5-20%by mass of porousceramics are used when blending w
4、ith or adding to a topsoil.1.2 The potential/success of a topsoil amendment ismeasured/determined by its ability to provide or enhance someor all of the desired properties/characteristics of the topsoil thatmay be deficient in the unamended topsoil.1.3 Soils typically consist of three components:wat
5、er,airand solids.Solids can be further divided into two sub-components:organic matter,such as peat,muck or otherdecayed matter,and inorganic mineral matter,such as clay,siltand sand.Porous ceramic falls into the inorganic mineralmatter sub-component and is generally used in horticulturaltopsoil appl
6、ications as a substitute/alternative or addition forthe sand component of soil.See Specification D5268,Table 1.1.4 UnitsThe values stated in SI units are to be regardedas the standard.The values given in parentheses are providedfor information only and are not considered standard.Report-ing of test
7、results in units other than SI shall not be regarded asnonconformance with this standard.1.5 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026,unless superseded by this test method.1.5.1 The procedures used to specify h
8、ow data are collected/recorded and calculated in the standard are regarded as theindustry standard.In addition,they are representative of thesignificant digits that generally should be retained.The proce-dures used do not consider material variation,purpose forobtaining the data,special purpose stud
9、ies,or any consider-ations for the users objectives;and it is common practice toincrease or reduce significant digits of reported data to becommensurate with these considerations.It is beyond the scopeof these test methods to consider significant digits used inanalysis methods for engineering data.1
10、.6 This practice offers a set of instructions for performingone or more specific operations.This document cannot replaceeducation or experience and should be used in conjunctionwith professional judgment.Not all aspects of this practice maybe applicable in all circumstances.This ASTM standard is not
11、intended to represent or replace the standard of care by whichthe adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projects many unique aspects.The word“Standard”in thetitle of this document means only that the document has beenapp
12、roved through the ASTM consensus process.1.7 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of
13、 regulatory limitations prior to use.1.8 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Tra
14、de Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C29/C29M Test Method for Bulk Density(“Unit Weight”)and Voids in AggregateC566 Test Method for Total Evaporable Moisture Content ofAggregate by DryingD75/D75M Practice for Sampling Aggregates1This test
15、 method is under the jurisdiction ofASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.22 on Media for PlantGrowth.Current edition approved March 1,2019.Published March 2019.DOI:10.1520/D8249-19.2For referenced ASTM standards,visit the ASTM website,www.astm.org,o
16、rcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommend
