ASTM_D_8173_-_18.pdf

Designation:D817318Standard Guide forSite Preparation,Layout,Installation,and Hydration ofGeosynthetic Cementitious Composite Mats1This standard is issued under the fixed designation D8173;the number immediately following the designation indicates the year oforiginal adoption 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 guide covers directions for the installation of ageosynthetic cementitious composite mat(GCCM)under fieldconditions typically present in erosion control,hydraulic struc-ture armoring and protection,and protection applications.1.2 The values in SI units are to be regarded as the standard.Values in inch-pound units are in parentheses for information.1.3 This guide contains general guidelines.It is not intendedto replace project-specific installation requirements.In theevent of a conflict between the two,the requirements of theproject specifications will supersede the requirements of thisguide.1.4 This is not an all-inclusive guide,and some projects willbe beyond the scope of this guide.1.5 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 regulatory limitations prior to use.1.6 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 Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4439 Terminology for Geosynthetics2.2 American Concrete Institute Standard:3ACI 306.1 Standard Specification for Cold Weather Concret-ing2.3 Further information is available on the various GCCMsfrom their manufacturers.Individual GCCM manufacturersrecommendations may be more detailed with regards to spe-cific applications or details than the information found in thisstandard,and should be consulted prior to undertaking anyinstallation.3.Terminology3.1 Definitions:3.1.1 bottom layer flap,nin a GCCM installation,asection of the bottom layer that extends beyond the top layer.3.1.2 butt joint,nin a GCCM installation,a connection oftwo separate segments of GCCM where the edges of eachsegment of GCCM are touching and generally in the sameplane and may be sealed with a bottom layer flap.3.1.3 hydration,nin a GCCM installation,exposure of theGCCM,in this case,to water in prescribed conditions for aprescribed time.3.1.4 layer,nin a GCCM installation,the distinct materialcomponents of which a segment of GCCM material is com-posed.3.1.5 longitudinal layup,nin a GCCM installation,adeployed position of the GCCM where the material is deployedin line with the greater length of the structure being lined(thatis,along the length of a channel).3.1.6 segment,nin a GCCM installation,an individualstrip or section of GCCM material.3.1.7 shingled joint,nin a GCCM,a connection method oftwo separate segments of GCCM where a length of onesegment overlaps on top of an adjacent segment.3.1.8 transverse layup,nin a GCCM installation,a de-ployed position of the GCCM where the material is deployedtransverse to the greater length of the structure being lined(thatis,across the width of a channel).3.1.9 unjointed edge,nin a GCCM installation,an edge ofthe segment of GCCM that is not secured within an anchortrench or sufficiently fixed to provide immediate contactbetween the segment and substrate and to minimize ingress.Sometimes referred to as“free ends.”1This guide is under the jurisdiction ofASTM Committee D35 on Geosyntheticsand is the direct responsibility of Subcommittee D35.05 on Geosynthetic ErosionControl.Current edition approved Feb.1,2018.Published February 2018.Originallyapproved in 2018.DOI:10.1520/D8173-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Concrete Institute(ACI),38800 Country Club Dr.,Farmington Hills,MI 48331-3439,http:/www.concrete.org.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 Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.2 For definitions of additional terms used in this standard,refer to Terminology D4439.4.Significance and Use4.1 This guide identifies prope