ASTM_C_1799_-_C_1799M_-_14.pdf

Designation:C1799/C1799M14Standard Guide toDimension Stone Test Specimen Sampling and Preparation1This standard is issued under the fixed designation C1799/C1799M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONDimension stones are products of nature,and as such,are subject to the variability andunpredictability that is associated with all products harvested in nature.Testing of dimension stonesto generate reliable data on which engineering decisions can be based has been a standard procedurein the industry for decades.The reliability of the data produced is largely influenced by the care andprotocol used in obtaining and preparing the stone test specimens.1.Scope1.1 This guide covers sampling,selection,preparation,andconditioning of specimens that will be used to test materialproperties of dimension stone.1.2 This guide sets forth basic recommendations for sam-pling and preparation of dimension stone test specimens andprovides information regarding variables that should be con-sidered.1.3 This guide is intended to be used by architects,engineers,contractors and material suppliers who design,select,specify,install,purchase,fabricate,finish,or test naturalstone products for construction applications.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:C97 Test Methods for Absorption and Bulk Specific Gravityof Dimension StoneC99 Test Method for Modulus of Rupture of DimensionStoneC119 Terminology Relating to Dimension StoneC120 Test Methods of Flexure Testing of Slate(BreakingLoad,Modulus of Rupture,Modulus of Elasticity)C121 Test Method for Water Absorption of SlateC170 Test Method for Compressive Strength of DimensionStoneC217 Test Method for Weather Resistance of SlateC241 Test Method for Abrasion Resistance of Stone Sub-jected to Foot TrafficC880 Test Method for Flexural Strength of Dimension StoneC1352 Test Method for Flexural Modulus of Elasticity ofDimension StoneC1353 Test Method for Abrasion Resistance of DimensionStone Subjected to Foot Traffic Using a Rotary PlatformAbraser3.Terminology3.1 Refer to Terminology C119.3.2 Definitions:3.2.1 samplea small part or quantity of stone,usually aslab,panel,or ashlar,that is cut from a larger block of stone.3.2.2 specifying authorityparty requiring testing of di-mension stone material.3.2.3 specimenan individual piece of stone that is cutfrom a sample to be used for physical or mechanical testing.4.Significance and Use4.1 The purpose of testing dimension stone is to quantify thevarious material properties of the stone.The test shouldconsistently predict performance of the stone in a specificapplication.Many of the test methods that have been devel-oped are specific and attempt to approximate the anticipatedbehavior of the stone in the manner that is intended to be used,1This test method is under the jurisdiction of ASTM Committee C18 onDimension Stone and is the direct responsibility of Subcommittee C18.08 onSelection of Dimension Stone.Current edition approved May 1,2014.Published June 2014.DOI:10.1520/C1799_C1799M-14.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 such as flexural strength,compressive strength,and anchorstrength.Other test methods provide general information aboutthe stone,such as absorption and density.Test data provides thedesigner with information required to produce rational designsand assess if the stone will perform adequately for its intendeduse.5.Selection Considerations5.1 Natural stone test specimen selection is complicated bythe anisotropic structure of most dimension stone.The term“rift”is used to describe the direction along which a dimensionstone is most easily split.In some stone species,specifically thesedimentary stones such as limestone,sandstone and travertine,the rift direction and associated behavior can be pronounced,and is typically coincident with the natural bedding planesvisible in the stone deposit.5.2 Within the stone quarry,the in-situ orientation of thesebedding planes may follow horizontal,mountain slope,orrandom directional trends.In other stone species of metamor-phic or igneous origin,the presence of rift and,therefore,theanis