ASTM_C_1242_-_16.pdf

Designation:C124216Standard Guide forSelection,Design,and Installation of Dimension StoneAttachment Systems1This standard is issued under the fixed designation C1242;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.INTRODUCTIONNatural building stone is chosen as a buildings cladding for its beauty which endures with minimalmaintenance.Stone is durable when used properly.Exercising good judgment when selecting theparticular stone,determining the quarrying and fabrication techniques,designing the method ofattachment,and installing all components correctly maximizes these benefits.A properly executedstone cladding is designed and installed within the capabilities and limitations of the stone and supportsystem to resist all forces that work on them.This guide presents design principles that require consideration when designing anchorages andevaluating exterior stone to be compatible with its proposed use.It is an overview of currenttechniques and a review of minimum requirements for sound stone engineering and construction.Theguide does not list all possible methods of attachment nor does it provide a step-by-step procedure forstone anchor engineering.Knowledge gained from new engineering designs,testing of applications,and the investigation of existing problems are continually reviewed to update this guide.Commentfrom users is encouraged.Good judgment by architects,engineers,and contractors when specifying,designing,engineering,and constructing stone and other work that interfaces stone is necessary to use this guide.Users of thisguide should combine known performance characteristics of the stone,the buildings structuralbehavior,and knowledge of materials and construction methods with proven engineering practice.1.Scope1.1 This guide covers the categories of anchors and anchor-ing systems and discusses the design principles to be consid-ered in selecting anchors or systems that will resist gravityloads and applied loads.1.2 This guide sets forth basic requirements for the designof stone anchorage and provides a practical checklist of thosedesign considerations.1.3 This guide pertains to:1.3.1 The anchoring of stone panels directly to the buildingstructure for support,1.3.2 The anchoring of stone panels to subframes or tocurtainwall components after these support systems are at-tached to the building structure,1.3.3 The anchoring of stone panels to subframes or tocurtainwall components with stone cladding preassembledbefore these support systems are attached to the buildingstructure,and1.3.4 The supervision and inspection of fabrication andinstallation of the above.1.4 Observe all applicable regulations,specific recommen-dations of the manufacturers,and standards governing inter-facing work.1.5 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematical1This guide is under the jurisdiction of ASTM Committee C18 on DimensionStone and is the direct responsibility of Subcommittee C18.06 on AttachmentComponents and Systems.Current edition approved Sept.1,2016.Published November 2016.Originallyapproved in 1993.Last previous edition approved in 2015 as C1242 15a.DOI:10.1520/C1242-16.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 conversions to SI units that are provided for information onlyand are not considered standard.1.6 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 and health practices and determine the applica-bility of regulatory limitations prior to use.(See Tables 1 and2.)2.Referenced Documents2.1 ASTM Standards:2C97 Test Methods for Absorption and Bulk Specific Gravityof Dimension StoneC99 Test Method for Modulus of Rupture of DimensionStoneC119 Terminology Relating to Dimension StoneC170 Test Method for Compressive Strength of DimensionStoneC406 Specification for Roofing SlateC482 Test Method for Bond Strength of Ceramic Tile toPortland Cement PasteC503 Specification for Marble Dimension StoneC509 Specification for Elastomeric Cellular Preformed Gas-ket and Sealing MaterialC568 Specification for Limestone Dimension StoneC615 Specification for Granite Dimension StoneC616 Specification for Quartz-Based Dimension StoneC629 Specification for Slate Dimension StoneC864 Specification for Dense Elastomeric Compression SealGaskets,Setting Blocks,and SpacersC880 Test Method for Flexural Strength of Dimension StoneC920 Specification for Elastomeric Joint SealantsC1115 Specification for Dense Elastomeric Silicone RubberGaskets and AccessoriesC1193 Guide for Use of Joint Sealants2For referenced ASTM standards,visit the ASTM w