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·1 AGGREGATE CRUSHING VALUE TEST AIM To determine crushing value of the aggregate THEORY The principal mechanical properties required in road stones are i satisfactory resistance to crushing under the roller during construction and ii adequate resistance to surface abrasion under traffic Also
2 ·The Aggregate Impact Value Test is important because it helps to determine the quality and suitability of aggregates for use in road construction Aggregates that have a low AIV value are generally considered to be more suitable for use in road construction as they are able to withstand the impact and abrasion caused by vehicles
·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 Research at the UK Road Research Laboratory showed a significant relationship between polishing of aggregates
Aggregate crushing value = W2/W1 100 % Abrasion Test on Aggregates To determine the stripping value of bitumen static immersion test is conducted on aggregates In this test the aggregates are coated with bitumen and dried After drying they are immersed in water at 40 o c for about 24 hours Stripping value of aggregate should not
·5 DISCUSSION about the application of Aggregate Impact values & state the values used in construction industry Application of Aggregate Impact values The aggregate impact value is a determining measure of resistance to sudden impact or shock which may differ from its resistance to gradually applied compressive load determine the
·Experiment #10 Aggregate Crushing Value Test Determine Aggregate Crushing Strength Aggregate 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
·The document summarizes an aggregate crushing value test lab report The objective was to determine the suitability of coarse aggregates for use in different types of roads by assessing their resistance to crushing under load The sample was tested according to procedure using an aggregate crushing value machine The aggregate crushing value of the
To 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
1 ·IS Reccomanded Values The specific gravity of coarse aggregate as per its code is to 3 The water absorption of aggregate ranges from to 2% Conclusion In conclusion the specific gravity of coarse aggregate and water absorption tests are crucial in assessing the quality and suitability of aggregate for use in construction projects
·construction is the ability of the aggregate to resist crushing The Aggregate Crushing Value gives a relative measure of the resistance of the aggregate to crushing under a gradually applied compressive load Scope The particular purpose which an aggregate is meant to serve requires the aggregate to have a particular strength This
·Aggregate Crushing Value ACV this is the measurement of the resistance of aggregate to crushing by compressive force A test specimen 10 14mm is compressed up to 400 kN and the proportion of material passing mm is the ACV mean value of two tests The higher the value the weaker the aggregate
Name of the experiment Aggregate Crushing value test Objective Determine the aggregate crushing value of coarse aggregate 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
·Aggregate Crushing Value = B/A X 100 Where A = weight of oven dried sample B = weight in g of fraction passing through mm IS sieve 6 Results The mean of the two results shall be reported 7 Video Aggregate Crushing Value Test 8 Download Download PDF
AIM OF THE EXPERIMENT To determine the Flakiness Index of the given sample of course aggregate CODE OF REFERENCE • IS 2386 Part 1 1963 Methods of Test for Aggregates of Concrete Particle Size and Shape Reaffirmed Dec 2016 • ASTM 4791 10 Standard Test Method for Flat Particles Elongated Particles or Flat Elongated Particles in Coarse Aggregates
·The specifications of the aggregate samples are kept similar for all of these three test procedures The result indicates a strong correlation of Light compaction values LCV with Aggregate crushing values ACV and Aggregate Impact Values AIV The R 2 values for the relationship was found to be more than for both these relationships It
AIM 1 To determine the aggregate crushing value of coarse aggregates 2 To assess suitability of aggregates for use in different types of road pavement 2 PRINCIPLE The aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load Crushing value is a measure of the
·The crushing strength or aggregate crushing value of a given road aggregate is found out as per IS 2386 Part 4 The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load To achieve a high quality of pavement aggregate possessing low aggregate crushing value should be
·The aggregate impact value is a measure of resistance to sudden impact or shock which may differ from its resistance to gradually applied compressive load OBJECTIVE To determine the impact value of the given road aggregate APPARATUS The apparatus of the aggregate impact value test as per IS 2386 PART IV 1963 consists of 1
·About kg of natural aggregate is required to provide the two test samples Use less light weight aggregate Calculate the percentage of fines generated to the total sample weight Use the formula Aggregate Crushing Value = 100 W2/W1 percent where W2 = Weight of fraction passing the appropriate mm sieve W1 = Weight of dry sample
·With 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 Crushing value is strength of the aggregates against crushing load Aggregates undergo crushing in road construction and road operation work If it gets crushed easily then road
·2 To determine the toughness i mpact value of aggregates 3 To determine the crushing value of road aggregates 4 To determine the Specific Gravity and water absorption of aggregate 5 To determine the flakiness and elongation indices of the given aggregate sample B Tests on bitumen 6 To determine the softening point of bitumen 7
Impact value of aggregate satisfactory for road surfacing The experiment follows the requirements set via ASTM C131 and BS 812 Part 112 Scope The experiment pursues to decide the effect cost of aggregates We evaluated to determine the impact value of the aggregate sample Furthermore by conducting a meticulous comparison of this
In general older and more hardened limestone exhibits higher strengths and is suitable for road surfacing applications as well as for use in the lower parts of the road pavement Adeyi et al 2019
