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Significance and Use
5.1 This test method provides a procedure for evaluating the potential resistance to degradation by impact and abrasion of pervious concrete mixtures. A common failure mode of pervious concrete pavements is raveling. This test allows the comparison of the relative potential resistance to raveling of pervious concrete mixtures of varying proportions and raw materials. In addition, in the field, raveling is caused by improper paste consistency, workability loss, inadequate compaction, and improper curing—this test method does not address any of these causes. There is no known correlation between this test method and the field performance of pervious concrete.
5.1.1 This information may be used to compare proposed mixture proportions, yet to be placed, but is not intended to be used for mixture qualification or jobsite acceptance testing.
5.1.2 This test method is applicable to pervious concrete mixtures containing coarse aggregate with a nominal maximum size of 25 mm [1 in.] or smaller.
5.1.3 This test method is only applicable to cylindrical specimens cast as described herein. The precision and bias have not been evaluated for drilled cores.
1.1 This test method covers determining the potential resistance to degradation of pervious concrete by measuring the mass loss of specimens subjected to combined action of impact and abrasion in a rotating steel drum.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.3 The text of this test method references notes and footnotes that provide explanatory information. These notes and footnotes (excluding those in tables) shall not be considered as requirements of this test method.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged use.2)
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C125 Terminology Relating to Concrete and Concrete Aggregates
C131 Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
C172 Practice for Sampling Freshly Mixed Concrete
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C470/C470M Specification for Molds for Forming Concrete Test Cylinders Vertically
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C1688/C1688M Test Method for Density and Void Content of Freshly Mixed Pervious Concrete
D6926 Practice for Preparation of Bituminous Specimens Using Marshall Apparatus
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
ICS Number Code 91.100.30 (Concrete and concrete products)
UNSPSC Code 30111500(Concrete and mortars)