C6c6m test method for sieve analysis of fine and coarse aggregates. Abrasion test is the measure of aggregate toughness and abrasion resistance such as crushing, degradation and disintegration. At the completion of the test, the material should be discharged and. Astm c1 c1m 20 standard test method for resistance. Due to the movement of traffic, the road stones used in the surfacing course are subjected to wearing. The aggregate used in surface course of the highway pavements are subjected to wearing due to movement of traffic. The percentage is a measure of the degradation or loss of material as a result of impact and abrasive actions. Abrasion type astm c 418 astm c 779 astm c 944 astm c 18 a b c light to medium traffic x x x x. Standard test methods for determination of abrasion. For this reason, particles larger than 19 mm were excluded from the 20mmaggregate samples in table 4. Pdf standard test method for resistance to degradation. To ascertain the degradation of aggregates by abrasion and impact. The en 1269717 method cantabro test concerns the determination of the particle loss abrasion of porous asphalt mixtures and the en 1269743 concerns the determination of the resistance of a bituminous mixtures or pavement to aviation fuel.
Natural aggregates undergo a lot of physical change in its entire life. Then put a specified number of steel spheres in the drum. The percent of weight loss cantabro loss is an indication of pfc, lra, and hotmix coldlaid. Since its formation to the final use in construction, the aggregate may undergo a significance change in its shape,its color,toughness and hardness. The sample is placed in a rotating drum along with an abrasive. Abrasion test article about abrasion test by the free. The machine shall be so driven and so counterbalanced as to maintain a substantially uniform peripheral speed.
Aggregate abrasion characteristics are important because the constituent aggregate in hma must resist crushing, degradation and disintegration in order to produce a high quality hma. Measure of resistance of coarse aggregate to degradation breakdown by. C702 practice for reducing samples of aggregate to testing size. The testing method determines the degradation when subjected to abrasion, attrition, impact and grinding. Classification of concrete abrasion test m alexander, 1985. Astm c535 16 standard test method for resistance to. C670 practice for preparing precision and bias statements for test methods for construction materials. Procedure for sampling and quality evaluation testing of rock for riprap. This standard is issued under the fixed designation c 1. Most of the recent literature on the microdeval has originated from the ontario. Abrasion test is carried out to test the hardness property of aggregates. Susceptibility of jhelum river bed aggregate to alkali silica reaction and its potential as construction aggregate.
Abrasion requirements do not apply to blast furnace slag. For gradings a, b, c and d, the machine shall be rotated for 500 revolutions. If you continue browsing the site, you agree to the use of cookies on this website. After a specific number of rotations the sample is removed and examined for wear. Standard test methods for determination of abrasion resistance of concrete 161 table 1. There are 3 tests commonly used to test aggregates for its abrasion resistance.