application of aggregate abrasion value

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  • Aggregate Abrasion Value Civil Engineering Portal

    AGGREGATE ABRASION VALUE This test helps to determine the abrasion value of coarse aggregates as per IS: 2386 (Part IV) 1963. The apparatus used in this test are Los Angles abrasion testing machine, IS Sieve of size 1.7mm, Abrasive charge 12 LOS ANGELES ABRASION VALUE OF AGGREGATE,2019-3-11 · abrasion test is to find the percentage wear due to relative rubbing action between the aggregate and steel balls used as abrasive charge. 2.Apparatus Required Fig. 1: Balance Balance should be accurate upto 1 g Fig. 2: Sieves Sieves required are 80, 63, 50, 40, 25, 20, 12.5, 10, 6.3, 4.75 (as per gradation of aggregate) and 1.7 mm Fig. 3: Los

  • Los Angeles Abrasion Test on Aggregates -Values for

    2010-2-22 · Observations of Los Angeles Test Original weight of aggregate sample = W 1 g Weight of aggregate sample retained = W 2 g Weight passing 1.7mm IS sieve = W 1 W 2 g Abrasion Value = (W 1 W 2 ) / W 1 X 100 Results Los Angeles Abrasion Value = Recommended Los Angeles Test Values for Pavements Los Angeles test is commonly used to evaluate the hardness of aggregates.Abrasion an overview ScienceDirect Topics,The aggregate abrasion value should not exceed 30% by weight of the aggregates for the wearing surface. In addition, it should not increase 50% by weight of the aggregate for concrete to be used for nonwearing surface [IS: 2386 (Part 4)]. The aggregate abrasion value can be determined as: Weight of original slag sample (w1) = 10 kg

  • Polished Stone Value Test Procedures and Equipment

    2020-8-21 · Aggregate Abrasion Value Polishing Stone. Introduction In 1950 increased traffic flows and higher speeds on trunk roads, together with concerns about road safety led to research into the relationship between road materials and skid-resistance. A STUDY ON RECYCLED CONCRETE AGGREGATES,2018-3-15 · Aggregate and Natural Aggregate shows that the former has high specific gravity, high absorption capacity and low fineness modulus. Resistance to mechanical actions such as cru shing strength, impact value and abrasion value of recycled aggregates are significantly higher than that of conventional aggregates. There is a marginal increase

  • Aggregates for Concrete

    2017-8-5 · sieve is called “fine aggregate” or “sand,” and larger aggregate is called “coarse aggregate.” Coarse aggregate may be available in several different size groups, such as 19 to 4.75 mm (3/4 in. to No. 4), or 37.5 to 19 mm (1-1/2 to 3/4 in.). ASTM C 33 (“Standard Specifications for Concrete Aggre-Abrasion value of aggregates % % Firstalert.in,2020-5-30 · The word abrasion is termed as the process of scraping or wearing something away. This Abrasion effect occurs on aggregates when heavy vehicles move over the granular base. According to IS 2386 (Part IV of 1963), there are two methods for finding out the abrasion value of coarse aggregates namely. By using Devil abrasion testing machine.

  • LOS ANGELES ABRASION VALUE OF AGGREGATE

    2019-3-11 · abrasion test is to find the percentage wear due to relative rubbing action between the aggregate and steel balls used as abrasive charge. 2.Apparatus Required Fig. 1: Balance Balance should be accurate upto 1 g Fig. 2: Sieves Sieves required are 80, 63, 50, 40, 25, 20, 12.5, 10, 6.3, 4.75 (as per gradation of aggregate) and 1.7 mm Fig. 3: LosTo perform LOS ANGELES Abrasion test on aggregate,2020-3-24 · Limiting values of LAA: Larger the LAA value, softer will be the aggregate and smaller the value, harder will be the aggregate. For wearing surface use the value 10 % from (0% 10%), this is because even though 0 % will provide a good hard surface but its coefficient of friction will be too high that it will severely damage the tires.

  • Properties of Aggregates Properties of Road and

    Abrasion Value. Aggregate should be hard enough to resist abrasion. This decreases the chance of wear and tear in concrete. For Abrasion Test: Read here . i. Crushing Value. The crushing value gives the resistance of an aggregate to crushing under the application of compressive load. j. Deleterious Materials. Aggregate should be free from4. Properties of aggregates Constroquick,2021-10-12 · High abrasion means aggregates are hard enough to resist abrasion. This tends to decrease the chance of wear and tear in concrete. 12. Crushing value. Crushing values the factor to measure the resistant of aggregates against hardness. The crushing value gives the resistance of a coarse aggregate to crushing under the application of compressive

  • A STUDY ON RECYCLED CONCRETE AGGREGATES

    2018-3-15 · Aggregate and Natural Aggregate shows that the former has high specific gravity, high absorption capacity and low fineness modulus. Resistance to mechanical actions such as cru shing strength, impact value and abrasion value of recycled aggregates are significantly higher than that of conventional aggregates. There is a marginal increaseBASIC QUALITY CONTROL TESTS & THEIR FREQUENCIES,2019-7-25 · for application ii) Aggregate. Impact Value. or Abrasion Value iii)Grading of aggregate. iv)Combined flakiness and Elongation Indices. v)Stripping Value Lot size No. of container Up to 50 lots 3 51 to 150 5 151 to 500 7 501&above 10 One test per 200 cu.m. of aggregate. One tests per 100 cu.m of aggregate. One tests per 200 cu.m of

  • Aggregates for Concrete

    2017-8-5 · sieve is called “fine aggregate” or “sand,” and larger aggregate is called “coarse aggregate.” Coarse aggregate may be available in several different size groups, such as 19 to 4.75 mm (3/4 in. to No. 4), or 37.5 to 19 mm (1-1/2 to 3/4 in.). ASTM C 33 (“Standard Specifications for Concrete Aggre-Aggregate Impact Value Test Impact Test Of Aggregate,2021-11-15 · Aggregate impact value is the ratio of the weight of the fraction passing through 2.36 mm (weight W2) by the total weight of the sample (weight W1 + W2). Aggregate Impact Value = (W2/ (W1+W2)) * 100 = 80 gm / 300 gm = 26.67 (Impact Value) Where, W1= Weight of the fraction passing through 2.36 mm IS sieve.(220 gm)

  • Aggregate Testing Lab Equipment Sun LabTek

    2021-11-15 · Scratch hardness apparatus: Aggregate Testing Lab Equipment This apparatus is used in the field to determine the quantity of soft particles in coarse aggregate. It consists of a metal rod with a rounded point of 1.6 mm diameter, which is DEPARTMENT OF CIVIL ENGINEERING Transportation ,2021-5-28 · aggregate crushing test is simple, rapid and gives fairly consistent results. APPLICATIONS OF AGGREGATE CRUSHING TEST: The aggregate crushing value is an indirect measure of crushing strength of the aggregates. Low aggregate crushing value indicates strong aggregates, as

  • Properties of Aggregates Properties of Road and

    Abrasion Value. Aggregate should be hard enough to resist abrasion. This decreases the chance of wear and tear in concrete. For Abrasion Test: Read here . i. Crushing Value. The crushing value gives the resistance of an aggregate to crushing under the 4. Properties of aggregates Constroquick,2021-10-12 · High abrasion means aggregates are hard enough to resist abrasion. This tends to decrease the chance of wear and tear in concrete. 12. Crushing value. Crushing values the factor to measure the resistant of aggregates against hardness. The crushing value gives the resistance of a coarse aggregate to crushing under the application of compressive

  • Properties of aggregates- Physical properties, Chemical

    Aggregate impact values for bituminous wearing surfaces on roads are limited to 30%. Hardness; Aggregates used in road construction especially in the top surface course should be hard enough to withstand the abrasion and attrition due to moving vehicle load. Aggregate abrasion value for the bituminous wearing surface in the road is limited to 30%.A STUDY ON RECYCLED CONCRETE AGGREGATES,2018-3-15 · Aggregate and Natural Aggregate shows that the former has high specific gravity, high absorption capacity and low fineness modulus. Resistance to mechanical actions such as cru shing strength, impact value and abrasion value of recycled aggregates are significantly higher than that of conventional aggregates. There is a marginal increase

  • Los Angeles Abrasion Testing: From the meaning of test

    2020-4-4 · mechanical tests of aggregate. The value obtained from the Los Angeles abrasion test gives an indication of the abrasion resistance of the material. A low LAA loss% indicates that the material has high abrasion resistance. Conversely, a high LAA loss% indicates that the material has low abrasion resistance. Table 1 shows a list ofAn Investigation Into Quality Of Aggregate In Road,These two aggregate samples were tested for sieve analysis test, relative density test, water absorption test, ten percent fine test, aggregate crushing value test (ACV), Aggregate impact value test (AIV), and Abrasion value test. Findings revealed that the best aggregate for road construction is

  • BASIC QUALITY CONTROL TESTS & THEIR FREQUENCIES

    2019-7-25 · for application ii) Aggregate. Impact Value. or Abrasion Value iii)Grading of aggregate. iv)Combined flakiness and Elongation Indices. v)Stripping Value Lot size No. of container Up to 50 lots 3 51 to 150 5 151 to 500 7 501&above 10 One test per 200 cu.m. of aggregate. One tests per 100 cu.m of aggregate. One tests per 200 cu.m ofAggregate Impact Value Test Impact Test Of Aggregate,2021-11-15 · Aggregate impact value is the ratio of the weight of the fraction passing through 2.36 mm (weight W2) by the total weight of the sample (weight W1 + W2). Aggregate Impact Value = (W2/ (W1+W2)) * 100 = 80 gm / 300 gm = 26.67 (Impact

  • Aggregate Impact Value Test Procedure & Uses [Civil

    2021-11-10 · Procedure. Step 1 First, the aggregate sample sieve through 12.5mm sieve and collect it which is retained in 10 mm sieve. Step 2 Now, the sample should be dried through the oven up to 4 hours at 100 deg to 110 deg. Step 3 Then, the aggregate sample should be filled in the metal cup by 3 layers. Each layer should be tamped 25 times by the tamping rod.,