To Determine Liquid Limit of Soil & Plastic Limit of Soil Liquid Limit Device ‑ a mechanical device consisting of a brass cup suspended from a carriage designed to control its drop onto a hard rubber base The device may be operated by either a hand crank or electric motor Cup ‑ brass with mass including cup hanger of 185 to 215 g
Get PriceThis test helps to determine the aggregate crushing value of coarse aggregates as per IS 2386 Part IV 1963 The apparatus used is Cylindrical measure and plunger Compression testing machine IS Sieves of sizes 12 5mm 10mm and 2 36mm
Get PriceDetermine the aggregate crushing value of coarse aggregate2 Assess suitability of coarse aggregates for use in different types of road APPARATUS REQUIRED 1 A steel cylinder 15 cm diameter with plunger and base plate 2 A straight metal tamping rod 16mm diameter and 45 to 60cm long rounded at one end 3
Get PricePaw S R Manta Central Road Research Institute CSIR New Delhi Smu N H MOHILB The Concrete Association of India Bombay the qualities and therefore it is necessary to determine beforehand the purpose for which a concrete is being used and the qualities of the aggregate which gate of aggregate crushing value 30 or higher the
Get Price11/95 Sand And Gravel Processing 11 19 1 1 11 19 1 Sand And Gravel Processing 11 19 1 1 Process Description1 6 or other uses or it may be directed to a crusher for size reduction to produce crushed aggregate or to produce manufactured sands Crushing generally is carried out in one or two stages although three stage crushing may also be
Get PriceSupplies of natural mineral aggregates are diminishing as their usage increases Disposal problems exist because of steadily increasing accumulation of solid wastes In light of these two situations an investigation was made to evaluate the use of crushed waste concrete as concrete aggregate If such use is practical it will help to alleviate
Get PriceWith aggregate of aggregate crushing value 30 or higher the result may be anomalous and in such cases the ten percent fines value should be determined instead 2 Apparatus Required Fig 1 Balance Balance should be accurate upto 1 gm Fig 2 Sieve 12 5 mm 10 0 mm and 2 36 mm
Get PriceAGGREGATE IMPACT VALUE TEST Object of the Experiment To evaluate the toughness of a stone i e the resistance of the aggregates to fracture under repeated impacts is called Impact Test This test is done to determine the aggregate impact value of coarse aggregate as per IS 2386 Part IV 1993
Get PriceThe machine should be driven to produce 30 33 rpm Fig 5 1 LOS ANGELES Machine 5 3 APPARATUS 1 LOSS ANGELES Abrasion Machine 2 Coarse Sieve Shaker 3 Weighing balance 4 Sieve #12 5 Abrasive Charges m=439 8 g 5 4 PROCEDURE 1 Sieve the sample in the coarse sieve shaker 2 Clean the aggregates and dry them in an oven at 105 110°C to
Get PricePrinciple of the Test To produce the abrasive action by use of standard steel balls which when mixed with the aggregate and rotated in a drum for specific number of revolution cause impact on aggregate The %age wear due to rubbing with steel balls is determined and is known as abrasion value Prepare the sample by the portion of an aggregate
Get Price11 3 Angularity number Objective To determine the angularity no of the given sample of aggregate Theory The angularity no of aggregate is the amount to the nearest whole number by which the percentage of voids exceeds 33 when an aggregate is compacted in a specific manner in a standardized metal cylinder Significance of test The degree of
Get PriceThe aggregate crushing value is defined as the ratio of the weight of fines passing through specified IS here 2 36mm sieve to the total weight of sample expressed in percentage W1= Weigh of the total aggregates Wa We W2= Weigh of aggregates passing through 2 36mm IS sieve Aggregate crushing value= W2 / W1 × 100
Get Pricelike specific gravity water absorption crushing value impact value and gradation to determine the suitability for high strength concrete 3 Mix Design of M30 grade cement concrete based on IS code and IRC 44 2024 4 Check for compressive strength as well as flexural strength 5 Comparison study between the followings i
Get PriceAggregate Impact Value BS 812 Part 3 1 Objective To determine the aggregate impact value in the laboratory 2 Introduction Impact value of an aggregate is the percentage loss of weight particles passing 2 36mm sieve by the application of load by means of 15 blows of standard hammer and drop under specified test condition
Get PriceThe aggregate crushing value of the coarse aggregates used for cement concrete pavement at surface should not exceed 30% and aggregates used for concrete other than for wearing surfaces shall not exceed 45% as specified by Indian Standard IS and Indian Road Congress IRC Aim To determine crushing strength of a given aggregate as per IS
Get PriceName of the experiment Aggregate Crushing value test Objective 1 Determine the aggregate crushing value of coarse aggregate 2 Assess suitability of coarse aggregates for use in different types of road Theory The aggregate crushing value give a relative measure of the resistance of an aggregate to crushing under gradually applied
Get PriceClassification of aggregates using Aggregate Impact Value is as given below Aggregate Impact Value Classification <20% = Exceptionally Strong 10 20% =Strong 20 30% =Satisfactory for road surfacing >35% = Weak for road surfacing 5 5 APPARATUS 1 Aggregate Impact Value Test Machine 2 BS test sieve 3 A metal tamping rod 4
Get PriceThe crush compression test method CCTM which is frequently used to determine the crushing value of rock particles is employed to determine the compressive strength of the in situ masonry mortar in this paper In a cylinder mortar particles are partially crushed and the peak load is recorded To develop standardized test methods the effect of numerous variables particle weight of the
Get PriceThe crushed aggregate is allowed to pass through 2 36 mm IS sieve And the impact value is measured as percentage of aggregates passing sieve W2 to the total weight of the sample W1 Aggregate impact value = W1/W2 100 Aggregates to be used for wearing course the impact value shouldn t exceed 30 percent
Get PriceREMco VSI SandMax crushers are fully autogenous vertical shaft crushing machines designed to operate as third or fourth stage crushers in the processing of all types of rock ores and minerals SandMax crushers can be operated in either open circuit or closed circuit This information helps the pilot determine the aircraft s trend
Get PriceTo determine the aggregate crushing value of the given specimen 2 To determine the aggregate impact value of the given specimen 3 To determine the Specific gravity and water absorption of an aggregate sample 4 To determine the abrasion value of coarse aggregate by using Los Angles machine 5 To determine the penetration value of the
Get PriceThe aggregate crushing value test was used to determine the relative measure of the resistance of an aggregate to crushing under gradually applied compressive load as per BS 812 110 1990 The aggregate impact value test was done to determine the aggregate impact value of the coarse aggregates using Impact testing machine conforming to BS 812
Get PriceThe procedure of the impact value test includes the following series of steps 1 The aggregate samples of size 10mm to 12 5mm passing through 12 5mm sieve and retained on 10mm sieve are first taken and oven dried at a temperature ranging from 100 degrees Celsius to 110 degrees Celsius for about four hours 2
Get Price1 Take the sample of coarse aggregate using the sample splitter 2 Sieve the sample with 4 75mm sieves and ignore the materials passing through No 4 75 sieve 3 Wash the sample to remove dust 4 Put the sample in the oven at 105°C for 24hours 5 Get the sample out of the oven leave it to cool then determine its weight
Get PriceStep 1 First the aggregate sample sieve through 12 5mm sieve and collect it which is retained in 10mm 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
Get Price3 Other than AIV test state two test to determine strength of aggregate Aggregate Crushing Value Test Abrasion Test; Soundness Test; CONCLUSION From the experiment we get the value is 21% and 9 % less than the requirement concrete used for wearing surface such as road work which is 30 %
Get PriceThe research on this paper have two objectives The first objective is to determine the properties of the aggregate by conducting some tests such as particle size distribution test density test water absorption test aggregate crushing value test compaction test and penetration test The second objective is the
Get PriceFig Elongation Index Gauge Test Procedure Determination of Flakiness Index Sieve the aggregate particles and divide them into groups such that the particle sizes in each group are closely related for example 2 5 2 in 1 5 0 75 in etc The intent of dividing the sample into factions is to find the individual flakiness index corresponding to a particular size range
Get PriceBased on the requirements of the aggregate crushing value for the construction of road bases the recycled aggregates can be classified into four categories by JTG E42 2024 for different road bases as shown in Fig 14 The ternary diagram can be correspondingly divided into four sections indicating the four categories of aggregates
Get PriceExperiment to Determine the aggregate impact value of different coarse aggregate samples BS 812 Aggregate impact value test plain & reinforced concrete and AIV s above 35 would normally be regarded as too weak for use in road surfaces Aggregate Impact Values and Aggregate Crushing Values are often numerically very similar and
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