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Aggregate Crushing Value This test helps to determine the aggregate crushing value of coarse aggregates as per IS 2386 Part IV – 1963 i The aggregates passing through 125mm and retained on 10mm IS Sieve are ovendried at a temperature of 100 to 110oC for 3 to 4hrs
Crushed Aggregate Density Range crushed aggregate density range kilawarhing what is the bulk density range for 10mm crushed aggregate density range density chart of aggregates 10mm density of coarse aggregate 20mm 950 kg per bulk bag density of aggregate 10mm know more Get Price And Support Online density of compacted crushed stone density of compacted crushed
Learn MoreAggregate Crushing Value Test The objective of this test is to Determine the aggregate crushing value of coarse aggregate Assess suitability of coarse aggregates for use in different types of road Apparatus A steel cylinder 15 cm diameter with plunger and base plate A straight metal tamping rod 16mm diameter and 45 to 60cm long rounded at one end
Learn MoreAggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load Coarse aggregate crushing value is the percentage by weight of the crushed material obtained when test aggregates are subjected to a specified load under standardized conditions
Learn MoreThe aggregate crushing value for wearing surfaces shall not exceed 45 PURPOSE OF TEST The strength of coarse aggregate is assessed by aggregate crushing test the aggregate value provide the relative measure of resistance to crushing under gradually applied Get price
Learn Moreaccording to IS 2386 Part iv1963 aggregate crushing value is designed for only for IS Sieves of sizes – 125mm 10mm and 236mm for 20mm and 10mm coarse aggregate we need to take different ranges of sieves then cylinders size will also changes
Learn MoreRange Of Aggregate Crushing Value Aggregate crushing value when determined in accordance with IS 2386 Part IV1963 shall not exceed 45 for aggregate used for concrete other than for wearing surfaces and 30 percent for concrete for wearing surfaces such as runways roads
Learn MoreThis percentage is known as a crushing value of aggregate This percentage should not exceed 30 of the total weight of aggregate taken for the test The aggregate crushing value test result should not be more than 30 for the concrete used for roads and pavements and in case of other structures it may be permitted up to 45
Learn MoreThe apparatus used for determining aggregate impact value of coarse aggregates is Impact testing machine conforming to IS 2386 Part IV 1963IS Sieves of sizes – 125mm 10mm and 236mm A cylindrical metal measure of 75mm dia and 50mm depth A tamping rod of 10mm circular cross section and 230mm length rounded at one end and Oven
Learn MoreIn general 40mm size aggregate used for normal strengths and 20mm size is used for high strength concrete the size range of various coarse aggregates given below Coarse aggregate Size
Learn MoreAggregate crushing value test on coarse aggregates gives a relative measure of the resistance of an aggregate crushing under gradually applied compressive load Coarse aggregate crushing value is the percentage by weight of the crushed material obtained when test aggregates are subjected to a specified load under standardized conditions
Learn MoreCoarse aggregate is used to describe particles larger than 475 mm and the term fine aggregate is used for particles smaller than 475mm Fine aggregates contain particles in the size range 75 µm to 475 mm and coarse aggregates from 475 to about 40 mm except for
Learn Moredifferent crushing of aggregates same cement and quality of water was used Fine aggregate sand impact crushed coarse aggregate A1 and vertically shafted coarse aggregate A2 properties were evaluated through lab testing Source of aggregates density and porosity water absorption of A1 and A2 coarse aggregates were kept constant
Learn MoreFine aggregate Vs Coarse Aggregate Coarse aggregates are particles greater than the size 475mm however you can find the range between 95mm to 375mm in diameter for larger size aggregates On the other hand fine aggregates are so small in size that they can pass through 9 mm sieve
Learn MoreOct 28 2018 · Max water absoption limit for coarse aggregates in any climatic condition should not be more than 2 And for fine aggregates range varies from 03–25 Max permissible limit of fine aggregates is 3 However it may increase or decrease depending
Learn MoreFeb 01 2014 · Coarse Aggregate TESTS ON AGGREGATEThe test usually conducted on coarse aggregates are PARTICLE SIZE FLAKINESS ELONGATION INDEX MOISTURE CONTENT SPECIFIC GRAVITY AND WATER ABSORPTION TEN PERCENT FINE VALUE AGGREGATE CRUSHING VALUE AGGREGATE IMPACT VALUE AGGREGATE ABRASION VALUE 12 13
Learn MoreOwing to scarcity of coarse aggregate for the preparation of concrete partial replacement of Ewaste with coarse was attempted The work was conducted on M20 grade mix The percentage of replacing coarse aggregate with Ewaste in the range of 0 5 10 15 and 20
Learn MoreHome Solutions the rules of aggregate crushing value test pdf the rules of aggregate crushing value test pdf IS 23864 1963 Methods of test for aggregates for concrete Part 4
Learn MoreTypically coarse aggregate sizes are larger than 475 mm 5 mm in British code while fine aggregates form the portion below 475 mm A maximum size up to 40 mm is used for coarse aggregate in most structural applications while for mass concreting purposes such as
Learn MoreSep 12 2015 · Aggregate crushing value W1W2100 The quantity of aggregates to be used depends upon the gradation and usually ranges from 510 kg The cylinder is then locked and rotated at the speed of 3033 rpm for a total of 500 1000 revolutions depending upon the gradation of aggregates Bitumen adheres well to all normal types of road
Learn MoreDuring this time compressive strength of A1 coarse aggregates ranges between 22 MPa to 415 MPa and compressive strength of A2 coarse aggregates ranges between 195 MPa to 385 MPa Highest compressive strength was recorded for ‘A1 with GroupV’ series which had wc ratio of 038 with impact crushed coarse aggregate
Learn MoreOct 01 2016 · For the preparation of economical concrete mix on should use largest coarse aggregates feasible for the structure IS456 suggests following recommendation to decide the maximum size of coarse aggregate to be used in PCC RCC mix Maximum size of aggregate should be less than Onefourth of the minimum dimension of the concrete member
Learn MoreAggregate particles have certain physical and chemical properties which make the aggregate acceptable or unacceptable for specific uses and conditions The following are of concern to INDOT PHYSICAL PROPERTIES The physical properties of aggregates are those that refer to the physical structure of the particles that make up the aggregate
Learn MoreCoarse Aggregate CA Size 475 mm 316 in to 50 mm 2 in retained on No 4 sieve
Learn Morecoarse aggregates the variation of aggregate crushing value of different coarse aggregates strength gain of concrete with time for different coarse aggregates and to establish a relation between aggregate crushing value of coarse aggregate and compressive strength of concrete In the study Portland Composite Cement PCC has not been used
Learn MoreVolume of coarse aggregates per unit weight of concrete based on the fine aggregates fineness modulus of 28 and maximum size aggregate of 1 in 254 mm 067 Dry weight of coarse aggregates 067 1484 kgm 3 994 kgm 3 Water content based on the maximum size aggregate of 1 in and recommended slump of 100 mm 193 kgm 3
Learn MoreAggregates Crushing Value test according to BS 812110 According to the standard the compression machine control system shall automatically compensate these instabilities and complete the test in an overall time of 10 min ± 30 s Dividing the whole test duration of 600 seconds into 10 intervals of 60 seconds each each 40 kN load step should be reached in 60 ± 3 seconds
Learn MoreTypically coarse aggregate sizes are larger than 475 mm 5 mm in British code while fine aggregates form the portion below 475 mm A maximum size up to 40 mm is used for coarse aggregate in most structural applications while for mass concreting purposes such as
Learn MoreSelling price The current market trend around Addis Ababa is some what variable in the range of 310 to 360 birr for coarse aggregate and140 to 300 birr for fine aggregates
Learn MoreThe values obtained are in the ranges specified in 23 28 29 The coarse aggregates are irregular in shape The fine modulus of fine aggregate is 527 and that of coarse aggregates Igneous rock – crushed granite stone sedimentary rock limestone and metamorphic rock marble stone are 7 238 207 and 416 respectively
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