1、Designation: C 1370 00 (Reapproved 2005)Standard Test Method forDetermining Chemical Resistance of Aggregates for Use inChemical-Resistant Sulfur Polymer Cement Concrete andOther Chemical-Resistant Polymer Concretes1This standard is issued under the fixed designation C 1370; the number immediately f
2、ollowing 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 (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test me
3、thod covers the determination of the effectsof selected environments on aggregates for use in manufactur-ing sulfur polymer cement concrete (SC) and other chemical-resistant polymer concretes.1.2 The values stated in inch-pound units are to be regardedas the standard. The metric equivalents of inch-
4、pound unitsgiven in parentheses in the standard may be approximate.1.3 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 ap
5、plica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 904 Terminology Relating to Chemical-Resistant, Non-Metallic Materials2.2 National Institute of Standards and Technology:3Handbook 44 Specifications Tolerances and other TechnicalRequirements for Commerc
6、ial Weighing and MeasuringDevices3. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this test method, referto Terminology C 904.4. Significance and Use4.1 The results obtained by this test method should serve asa guide in, but not as the sole basis for, selection of aggregatesfor u
7、se in sulfur polymer cement concrete and other chemical-resistant polymer concretes for a particular application. Noattempt has been made to incorporate in the test method all thevarious factors that may affect the performance of a materialwhen subjected to actual service.4.2 This test method assist
8、s in determining whether aggre-gates are susceptible to attack by solutions in the environmentof intended use.4.3 This is not a test for permeability and results are not tobe interpreted as a measurement of, or indication of, perme-ability of the material tested.5. Apparatus5.1 Weighing Equipment, s
9、hall be capable of weighingmaterials or specimens to 60.3 % accuracy. The weighingequipment shall meet the National Institute of Standards andTechnology requirements for sensitivity and tolerances.NOTE 1In general, small quantities should not be weighed on largecapacity scales. In many applications,
10、 the smallest quantity weighed on ascale should be greater than about 10 % of the maximum capacity of thescale; however, this will vary with the performance characteristics of thescale and the required accuracy of the determination. Acceptable scalesused for weighing concrete materials preferably sh
11、ould weigh accuratelyto about 0.1 % of total capacity and the foregoing precaution is applicable.However, certain analytical and precision balances are exceptions to thisrule and should weigh accurately to 0.001 %. Particular care must beexercised in measuring small quantities of material by determi
12、ning thedifference between two much larger weights.5.2 Drying oven of sufficient size to accommodate theaggregate sample and capable of holding the sample at atemperature of 230 6 10F (110 6 6C).5.3 Small Tools, including, but not limited to, items such as600-mL beakers, hot plate capable of holding
13、 sample andsolution at constant 140 6 4F (60 6 2C), desiccator, filterflask, funnel, and No. 1 qualitative filter papers.1This test method is under the jurisdiction of ASTM Committee C03 onChemical-Resistant Nonmetallic Materials and is the direct responsibility ofSubcommittee C03.01 on Mortars and
14、Carbon Brick.Current edition approved April 1, 2005. Published April 2005. Originallyapproved in 1997. Last previous edition approved in 2000 as C 1370 00.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM
15、Standards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from National Institute of Standards and Technology (NIST), 100Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohoc
16、ken, PA 19428-2959, United States.6. Materials Preparation6.1 The temperature in the vicinity of the mixing and testingoperations shall be 73 6 4F (23 6 2C).6.2 The temperature of the aggregate test specimens willvary and sometimes exceed 212F (100C).7. Procedure7.1 Dry aggregate to constant weight,
17、 cooling in a desicca-tor before weighing. Weigh three 200-g specimens of aggre-gate. Record the initial weight (W1) of aggregate. Place eachaggregate specimen in a separate beaker and weigh the 200-gspecimen, beaker, and filter paper.7.2 For each aggregate specimen and beaker, add 400 mL ofthe solu
18、tion from the environment in which the polymerconcrete will be placed. As an alternative, prepare and add 400mL of 20 wt. % solution of an appropriate media (HCl, H2SO4,etc.) to each aggregate specimen and beaker. Cover the beakerwith a watch glass to prevent evaporation. Heat the aggregatespecimen
19、and beaker to 140 6 4F (60 6 2C) and hold for 24h.7.3 Filter specimen and rinse residue on filter paper thor-oughly with distilled water to remove all of the solution.7.4 Dry residue and filter paper to constant weight in thebeaker with the aggregate specimen. Record the final weight ofaggregate (W2
20、).8. Calculation8.1 Percent LossThe percent loss of aggregate is equal tothe initial constant dry weight of the test specimen (W1) minusthe final constant dry weight of the test specimen (W2) dividedby the initial constant weight (W1) of the test specimen times100. It is calculated as follows:Percen
21、t Loss 5W12 W2W13 1009. Report9.1 Report the following information:9.1.1 Identification of aggregate tested, including name andaddress of source and supplier.9.1.2 Identification of solution used.9.1.3 Average percent loss of weight.9.1.4 Number of specimens tested.9.1.5 Standard deviation.9.1.6 Any
22、 unusual observations.10. Precision and Bias10.1 Precision and bias for this test method have not beenestablished.10.2 Test specimens that are manifestly faulty should berejected and not considered in determining the loss of weight ofaggregate.11. Keywords11.1 acid-resistant concrete; aggregates; ch
23、emical-resistant;mineral acids; percent loss; polymer concrete; sulfur; sulfurpolymer cement (SPC); sulfur polymer cement concrete (SC)ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this stand
24、ard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andi
25、f not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, wh
26、ich you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 1370 00 (2005)2
