Standard test method for soundness of aggregates by use of. Soundness test on aggregate is conducted to understand the resistance of aggregates to weathering action. This document is available to the public through the national technical information service 5285 port royal road springfield, va 22161. C 88 99a standard test method for soundness of aggregates by use of sodium sulfate or magnesium sulfate1 this standard is issued under the. The method may be used for acceptance of material but rejection should be based on. Ct 214 june 1, 2008 pdf ct 214 december 1, 1995 pdf 216. This standard is issued under the fixed designation c88. Ls606 soundness of aggregate by use of magnesium sulphate. Astm c88 c88m 18 standard test method for soundness of. Soundness of aggregates by freezing and thawing in a brine solution itm no. Evaluation of the 4cycle magnesium sulfate soundness test. Aggregates for concrete as per american standards astm pdf.
Test methods aggregate toughness and abrasion resistance are closely related to and often considered simultaneously with, durability and soundness. Ls6 determination of insoluble residue of carbonate aggregates. It furnishes information helpful in judging the soundness of aggregates subjected to weathering, particularly when adequate information is not available from service records of the behavior of the. The batch soundness loss may be used only when the loss for one primary size exceeds the maximum allowable loss by not more than 2 %. For soundness test we need some chemical solutions namely sodium sulphate or magnesium sulphate. The fine and coarse aggregates generally occupy 60% to 75% of the concrete volume 70% to 85% by mass and strongly influence the concretes freshly mixed and hardened properties, mixture proportions, and economy. C88c88m test method for soundness of aggregates by use of sodium sulfate or magnesium sulfate. Crdc11497 test method for soundness of aggregates by.
The freezing tank shall be capable of maintaining a heat conducting fluid bath, e. Magnesium sulfate soundness test to control quality of aggregates for hmac and. This standard is issued under the fixed designation c 88. Aashto t 104 soundness of aggregates by use of sodium sulfate or magnesium sulfate. Ct 214 august 1, 2010 pdf method of test for the soundness of aggregates by use of sodium sulfate. This report analyses the testing of aggregates using three main tests to analyse the degradation of aggregates so best performance is observed in construction, asphalt, concrete or any other field. Objective this test is intended to study the resistance of coarse and fine aggregates to weathering action and to judge the durability of the coarse aggregate. Pdf in this study, the mechanisms of damage to aggregate particles by sodium sulfate and magnesium sulfate solutions were investigated. California test methods version selection caltrans. The soundness test determines an aggregate s resistance to disintegration by weathering and, in particular, freezethaw cycles description. This test method measures aggregate resistance to disintegration. The most common soundness test involves repeatedly submerging an aggregate sample in a saturated solution of sodium or magnesium sulfate.
Pdf astm c 88 test on soundness of aggregate using. Apparatus name capacity least count balance 500 g 0. Therefore, special care must be taken in the interpretation of sulfate soundness test results for local aggregates. Astm c88 standard test method for soundness of aggregates by use of sodium sulfate or magnesium sulfate astm e100 standard specification for astm hydrometers csa a23. A in the case of manufactured sand, if the material finer than the no. To determine the weathering resistance of aggregate soundness test is conducted. Properties of carbonate rocks affecting soundness of.
This can lead to a change in the volume which is not good and substandard for the durability of construction. From the test results it was found that the wisdot aggregate testing. Test method for soundness of aggregates by freezing and thawing of concrete specimens 1. Since the precision of this test method is poor section, it may not be.
Aggregates that are durable resistant to weathering are less likely to degrade in the field and cause premature hma pavement distress and potentially, failure the soundness test repeatedly submerges an aggregate sample in a sodium sulfate or magnesium. There are various tests are carried out to check the quality of the aggregate like abrasion test, impact test, soundness test, flakiness index test, etc. Pdf standard test method for soundness of aggregates by. Ls608 percent flat and elongated particles in coarse aggregate. C29c29m test method for bulk density unit weight and voids in aggregate.
The apparatus required for the test are containers for aggregates, sieves 63, 50, 40, 31. When the percentage loss is greater than 25% then, this test shows that aggregate undergoes weathering process which ultimately decreases bearing strength. The values given in parentheses if provided are not standard and may not be exact. Pdf standard test method for soundness of aggregates by use of. The batch soundness loss is the combined loss of each primary size of coarse aggregate being used in the mix. C88 c88m18 standard test method for soundness of aggregates by use of sodium sulfate or magnesium sulfate.
The total blended aggregate from the fine and coarse aggregates. Referenced documents purchase separately the documents listed below are referenced within the subject standard but are not provided as part of the standard astm standards. Range and average for magnesium sulfate soundness are 10 to 30 percent and 16 percent, respectively. Pdf modeling of soundness propertycoarse aggregates. The soundness test determines an aggregates resistance to disintegration by. The values obtained may be compared with specifications, for example specification c33c33m, that are designed to indicate the suitability of aggregate proposed for use. The use of a specific fixed limit on aggregate soundness to distinguish between acceptable and unacceptable is not recommended. Aggregates are subjected to the physical and chemical action of rainwater, groundwater and the other impurities of the atmosphere. Standard specification for coarse aggregate for asphalt. The soundness test determines an aggregate s resistance to disintegration by weathering and, in particular, freezethaw cycles. Rate is at least 25 ghour for 4 hours with 500 g of water at 21 2c. Soundness test of aggregates is2386part5 civilblog. The weighted average loss cannot be greater than 10% when. If soundness testing cannot be conducted, the aggregate is required to originate from a category i source in accordance with itm 203.
The sample containers shall be of noncorroding metal, cylindrical in shape, and approximately 4. Chapter 4, concrete tex411a, soundness of aggregate using sodium sulfate or magnesium sulfate manual of testing procedures 5 0899 1004 preparing concrete fine aggregate concrete fine aggregate consists of all concrete aggregate passing a 4. Standard test method for soundness of aggregates by use of sodium sulfate or. Numerous test has been developed that test toughness and abrasion resistance and durability and soundness of aggregates. This method describes three procedures to be followed in testing aggregates to determine their resistance to disintegration by freezing and thawing. The most common soundness requirement for aggregates, coarse and fine is based on a sodium or magnesium sulfate soundness test astm designation c8855t. This process causes salt crystals to form in the aggregate pores, which simulate ice crystal formation figures 1.
Astm c87test method for effect of organic impurities in fine aggregate on strength of mortar. Ct 216 june 1, 2011 pdf method of test for relative compaction of untreated and treated soils and aggregates. Astm c88 test method for soundness of aggregates by use of sodium sulfate or magnesium sulfate. Here is a sample video of soundness test by lechatelier method. Soundness of aggregate by use of sodium sulfate or. The quick checks for soundness of the aggregate are the brine freezethaw and sodium sulfate test. C88 05 standard test method for soundness of aggregates by use of sodium sulfate or magnesium sulfate, aggregate, magnesium sulfate, soduim sulfate, soundness, weathering. Pdf astm c 88 test on soundness of aggregate using sodium. The soundness test on aggregate is carried out to learn the resistance of aggregates to weathering actions like thawing, freezing, alternate wetting and drying in normal conditions and in salt. Tex411a, soundness of aggregate using sodium sulfate or. Soundness of cement is the property by virtue of which the cement does not undergo any appreciable expansion or change in volume after it has set, thus eliminating any chances of disrupting the mortar or concrete. All fine aggregates used for hma are required to be in accordance with 904.
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