ASTM_C_1603_-_16.pdf

Designation:C160316Standard Test Method forMeasurement of Solids in Water1This standard is issued under the fixed designation C1603;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.Scope*1.1 This test method covers the measurement of the solidscontent in water for use as mixing water in ready-mixedconcrete and the measurement of its density.Solids content isexpressed in terms of parts per million(ppm)or in terms ofpercent by mass of the water sample.1.2 The values stated in SI units are to be regarded asstandard;inch-pound units are shown in parenthesis for infor-mation only.1.3 The text of this standard references notes and footnotesthat provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.1.4 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 to determine theapplicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C188 Test Method for Density of Hydraulic CementC670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsC1602/C1602M Specification for Mixing Water Used in theProduction of Hydraulic Cement Concrete3.Significance and Use3.1 This test method is used to determine the solids contentof mixing water used to produce concrete when one or more ofthe water sources is wash water from concrete productionoperations or water that contains solids when batched asmixing water in concrete.3.2 The test method provides a means to determine therelationship between the density and solids content of water forcompliance with solids content limits of mixing water such asin Specification C1602/C1602M.3.3 During production of concrete,the water property mea-sured is its density,which can then be used to estimate thesolids content from procedures described in this test method.3.4 To develop a correlation between the density and solidscontent of water,water samples should be tested that cover therange of solids concentrations anticipated during production.4.Apparatus4.1 Density Measure:A cylindrical container(Note 1)witha volume of 200 6 25 mL(7 6 1 fl.oz.)with a glass or hardplastic plate that is placed over it.The glass or plastic plateshall be at least 6 mm(14in.)thick and 40 mm(112-in.)largerthan the outer diameter of the measure.The top of the densitymeasure shall be flat such that it does not leak when the plateis placed over it.NOTE1Acommonly available smaller size mason jar with top groundsmooth is acceptable.4.2 The volume of the density measure shall be determinedto nearest 0.1 mL in accordance with procedures used forcalibrating air or density measures,as in Test Method C670.4.3 A microwave oven with at least 900 W of powercapacity.4.4 Amicrowave-safe glass dish large enough to contain thewater sample and fiberglass cloth(See Note 2).NOTE2A450 450 25 mm(9 9 1 in.)dish is acceptable.Fiberglass cloth commonly used with fiberglass resin for boat or auto bodyrepair is found in most hardware stores.4.5 A balance or scale with a minimum capacity of 2000 gaccurate to 0.1 g4.6 A rubber syringe5.Measurement of Density5.1 Obtain the mass of the empty density measure and plateto the nearest 0.1g.5.2 If the water contains solids in suspension,ensure that thewater is sampled while the water source is being agitated.Takea representative sample of water and fill the density measure to1This test method is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.40 on Ready-Mixed Concrete.Current edition approved Feb.1,2016.Published April 2016.Originallyapproved in 2004.Last previous edition approved in 2010 as C160310.DOI:10.1520/C1603-16.2For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 overflowing.Slide the cover plate over the measure ensuringthat there are no air bubbles.Wipe the outside of the plate andmeasure dry and obtain the mass of the filled density measurecovered with the plate.5.3 Calculate the density of the water sample to 0.001 g/mLDW5MWV(1)Where:DW=Density of the water,g/mL,MW=Net mass of water in the density measure,g,andV=Volume of the density measure,mL.6.Measurement of Solids Content6.1 Obtain the mass of the