Ponding tests typically take 90 days or longer and involve taking samples of the concrete at various depths to determine the chloride profile. An aci grade 1 field testing technician may perform the sampling at the plant if a representative of the aashto laboratory witnesses the process. This standard practice describes removing and preparation of a test specimen that can be analyzed for determining heatset area and number of macro stickies in a specified amount of pulp screened. A complete metric companion to m 170 has been developed aashto m 170m. Bureau of materials and physical research illinois modified aashto t112 effective date. The astm c1202 or aashto t277 test procedures should not be used in. Aashto m 17015 engineer technical aami, asme din standards. This fop covers sieve analysis in accordance with aashto t 2714 and materials finer than 75 m no. Aashto t 27793astm c 120294 rapid chloride permeability sample water vc5 avg coulombs 4002 2971 product availability vc5 is available in 18. The following are the minimum requirements for rapid set concrete patch materials. Assessment of high early strength limestone blended cement.
Jul 25, 2018 rapid set concrete patch materials approval process product must be evaluated by aashto s national transportation product evaluation program ntpep. An aashto accredited laboratory will mix the trial batch, sample and test the specimens aci301, 4. The astm method shows that the results of two properly conducted tests by the same operator on concrete. Aashto t 23 apparatus cylinder molds, in accordance with aashto m 205 beam molds inside surface smooth sides, bottom, and ends at right angles to each other, straight and true, and free of warpage maximum variation from nominal cross section does not exceed 18 in. Permeability aashto t 277 applied density 125 pcf sulfide resistance no wt. The astm method shows that the results of two properly conducted tests by the same operator on concrete samples from the same batch may differ as much as 42%. Concrete waqtc fop aashto t 23 18 procedure making cylinders rodding. Sampling of aggregates fop for aashto t 2 11 scope apparatus. Effect of agitation equipment type on theoretical maximum specific gravity values evaluates the effect of using various devices and methods on measured values of theoretical maximum specific gravity gmm used to determine the air void content and the inplace density of hotmix asphalt. Freezethaw astm c666 no damage in minimum 300 cycles f. Chloride permeability based on charge passed charge. Five categories were created in which coulomb test results from different test samples that fall in the same category were considered to be equivalent.
Trbs national cooperative highway research program nchrp research results digest 369. To obtain a sample using the aggregate streamflow, you will need the following. This fop can be performed in conjunction with aashto t 27 t 11. Flat and elongated particles in coarse aggregate fop for astm d 4791 scope. Strength values for all concretes made with the pozzolans and slag at 90 days were in excess of 5,000 psi 34. Chloride profiles recorded after completion of both test types are. This work shall consist of furnishing and applying a thin, multiplelayer polymer overlay to the bridge deck as shown on the plans. Many agencies have adopted the standard tests for electrical indication of concretes ability to resist chloride ion penetration aashto t 277 and astm c1202, commonly known as the rapid chloride permeability test rcpt, in their specifications for qualification and acceptance and as a means of indirectly assessing the permeability of concrete mixtures.
The first time a mix design is submitted, the contractor shall include asr aashto t 303 test data from both fine and coarse aggregates. This is an extremely large variation in allowable results. A precise correlation of the rapid test for chloride permeability aashto t 277 and the 90day ponding test with salt solution was not attained, but a general relationship was shown. This document was revised and reclassified as a standard practice in 2014.
Sampling device designed for use at each particular plant. Aashto gvcb2m guide specifications and commentary for vessel collision design of highway bridges, 2nd edition, with 2010 interim revisions. Electrical indication of concretes ability to resist chloride ion penetration astm c 120212 standard by american association of state and highway transportation officials, 2015. Ion penetration test rcpt aashto t 277, 2011 and by surface resistivity aashto tp 95, 2011 resulted in a low value rcpt about equal to or less than 2000 coulombs. May 2, 2001 lab manual 1219 minnesota department of. Tappi t277 sp14 free download asme icc csa astm codes. Aashto t277, standard method of test for rapid determination of the chloride permeability of concrete. Standard method of test for bulk density unit weight and voids in aggregate astm designation. This test method is applicable to aggregates not exceeding 125 mm. Aashto t 104, table 1 is allowed for testing or calculations. Standard method of test for electrical indication of. Aashto t electrical indication of concretes ability to resist chloride ion penetration. This test method covers the determination of the california bearing ratio cbr of pavement subgrade, subbase, and basecourse materials from laboratory compacted specimens.
The authors of this test feel that the test itself is not accurate enough to clearly define exact concrete permeability levels. Permeability aashto t 277 not to exceed 350 coulombs e. Aashto t 27707 2011 technical standards edocuments. Technical support technical assistance is available from manufacturer. If quantifying this material is required, use aashto t 11 in conjunction with aashto t 27. Our website provide pdf immediately download,sometimes when you purchased cant online download please contact us,we will send the document to you with email. Procedure specific situations conveyor belts avoid sampling at the beginning or end of the aggregate run due to the potential for segregation. Testing shall be performed by a ccrl qualified laboratory. The rapid migration testan alternative to aashto t 277 trid.
Note 1 this specification is a manufacturing and purchase specification only, and does not include requirements for bedding, backfill, or the relationship between field load condition and the. Exact size is smaller see aashto t 27 sample preparation obtain samples in accordance with the fop for aashto t 2 and reduce to the size shown. Tests and criteria for concrete resistant to chloride ion. Wsdot errata to fop for aashto t 176 plastic fines in graded aggregates and soils by the use of the sand equivalent test waqtc fop for aashto t 176 has been adopted by wsdot with the following changes. The fhwa wanted a test that could be done in place and have a good correlation to data. Calculate and report the composite percent loss to the nearest 0. Test procedures aashto t 277 test slices 50 mm thick were removed fiom the top of each 100 mm diameter core taken from the concrete slabs. Index surface resistivity test evaluation as an indicator. Ts1c t 19mt 191 aashto standard method of test for bulk density unit weight and voids in aggregate aashto designation. The total thickness of the overlay system shall not exceed 38 inch 10 mm. If there was a retest report the better of the two results. A machine was built based on specifications stated in whitings report in the iowa d. Aashto t277 states that the results of companion samples tested by the same operator should not vary by more than 19. Bureau of materials and physical research time of setting of.
This paper describes how the chloride penetration resistance of concrete is often a critical parameter in determining the longterm performance of concrete structures. Horizontal fast set aashto astm test method initial set 2030 minutes t 1. Understanding aashto t277 and astm c1202 rapid chloride. Aashto lts5i2 standard specifications for structural supports of highway signs, luminaires, and traffic signals, 5th edition, 2011 interim revisions. However, there is a great deal of discussion regarding the best method to measure this property.
Product description benefits identical results to water. C 29c 29m07 standard by american association of state and highway transportation officials, 2009. The sieve analysis determines the gradation the distribution of aggregate particles, by size, within a given sample in order to determine compliance with design, production control requirements, and verification. This test method covers the determination of bulk density unit weight of aggregate in a. Proportion the aggregates to provide a wellgraded combined gradation within zone ii optimal of the coarseness factor chart shown in figure 1126. Amendment by american association of state and highway transportation officials, 2011. Aggregate gradation use a minimum nominal maximum aggregate size of 1 inch. Aashto t 27 scope the sieve analysis, commonly known as the gradation test, is a basic essential test for all aggregate technicians. Tb0100 understanding aashto t277 and astm c1202 rapid.
A sieve analysis, or gradation, measures distribution of aggregate particle. Mattamy national cycling center velodome, milton, ontario photo courtesy of the cement association of canada. January 1, 2007 revised date september 07, 2012 standard method of test for time of setting of hydraulic cement by vicat needle modifications apply only when testing material according to article 1001. The aashto t 277 test recently adopted as astm c 1202 for chloride permeability is widely. The rapid migration testan alternative to aashto t 277. Air content by pressure astm c 23103 aashto t 15205 set time astm c 26604 aashto t 15406 tensile strength astm c 49696 aashto t 19806 freeze thaw astm c 66603 aashto t 16105 chloride ion penetration astm c 120205 aashto t 277 07. As a general rule the field sample size should be such that, when split twice will provide a testing sample of proper size. Low permeability concrete for bridge deck overlay 5. Evaluation of rapid determination of the chloride permeability of. Chloride permeability test technical t277 and astm c1202. The coulomb test aashto t277 and ponding test aashto. The slices were allowed to air dry for 1 hour, then prepared for test in accordance with the standard aashto method l. Aashto t 277, commonly referred to as the rapid chlo. Loss after 90 days in astm c267 20,000 ppm aqueous sulfuric acid solution 3.
Standard method of test for electrical indication of concrete s ability to resist chloride ion penetration. Final report 489 to 793 performing organization address iowa department of transportation materials department 800 li nco 1 n way ames, iowa 50010 7. Pdf the rapid chloride permeability test and its correlation to. Testing chloride penetration resistance of concrete fhwa. Calcium aluminate calcium aluminate materials shall be manufactured from 100% pure calciumaluminate cement and enhanced with silica fume and highdensity chemically stable aggregates. This fop covers the determination of the percentage, by mass, of flat and elongated particles in coarse aggregates for comparison with specification limits. October 2012 table 1 maximum allowable mass of material retained on a sieve, g nominal sieve size, mm in. Permissions to reprint documents can be acquired through. Aashto methods t277 rapid chloride permeability test and t259 90 days ponding. Aashto t 19mt 1909 engineer technical aami, asme din. This test method covers the determination of bulk density unit weight of aggregate in a compacted or loose condition, and calculated voids between particles in fine, coarse, or mixed aggregates based on the same determination.
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