As per IS 2386 part (IV), the impact strength values and crushing strength values for concrete wearing surfaces should not exceed 30% & for other than wearing surfaces 45% respectively. The crushing & impact values of recycled aggregate satisfy the BIS specifications limit.
AGGREGATE CRUSHING VALUE This 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 Procedure to determine Aggregate Crushing Value i) The aggregates passing through 12.5mm […]
mechanical actions. As per IS 2386 part (IV), the crushing and impact values for concrete wearing surfaces should not exceed 30% & for other than wearing surfaces 45% respectively. The crushing & impact values of recycled aggregate satisfy the BIS specifications limit. From crushing
Crushing and impact value test for aggregates is carried out a s per IS 2386-Part IV (BIS 1963b). Table 3 shows, crushing and impact value of RCA are comparatively higher than
The aggregates crushing value test should be performed as per IS code 2386 Part IV. First, fill the sample aggregate with one-third of the cylindrical measure in three layers. Each layer should be tamped 25times freely. After filling the sample aggregate, weigh and record it as W1. Now fill the aggregate in the mould along with the plunger on top.
May 26, 2021 Mix design ratio for concrete utilised Natural Coarse Aggregates by weight is calculated using the IS 10,262 – 2009 and the water – cement ratio taken for this Natural Coarse Aggregate Concrete is 0.55 and the values are given in below Table 5.
Procedure of Aggregate Crushing Value. Take a sample of aggregates by sieving through 12.5mm and retained on 10mm.; The aggregate shall be tested in dry surface conditions.If dried by heating, the period of drying shall not exceed 4 hours and temp shall be 100-110 deg C.
CC-4 Crushing strength of CA 3 samples from each source CC10 Gradation of FA 3 samples from each source CC-11 Gradation of CA 3 samples from each source GB-1 Flakiness Index Once for each source SB-2 Aggregate Impact Value One test per source GB-2 Water absorption One test per …
3.3 All-in-Aggregate — Material composed of fine aggregate and coarse aggregate. 4 CLASSIFICATION The aggregate shall be classified as given in 4.1 and 4.2 . In case of mixed sand ( see 3.1.3 ), the manufacturer/ supplier should supply the individual sands to be mixed at site, at the time of batching. 4.1 Aggregates from Natural Sources
May 13, 2013 Concrete mix proportioning as per IS 10262:2009 – The Indian … The Bureau of Indian Standards (BIS) has released the final code on concrete mix …. total aggregate already determined, the coarse and fine aggregate contents per …. Dry rodded density of coarse aggregate = 1640 kg/mm3. All other details … More detailed
Values of 22.8%, 28.2% and 4.4% were obtained for aggregate crushing value, aggregate impact value and aggregate water absorption respectively. The concrete mixes were prepared using crushed over burnt bricks as coarse aggregates at water – cement ratios of 0.40, 0.50, 0.55 and 0.60.
Aggregate used in road construction, should be strong enough to resist crushing under traffic wheel loads. If the aggregates are weak the stability of the pavement structure is likely to be adversely affected. The strength of coarse aggregates is assessed by aggregate crushing test.
The crushing and impact values of recycled aggregate satisfy BIS limit possible for application. 2.3 COARSE AGGREGATE Locally available crushed stone aggregate are used as a coarse aggregate which have the size of 20mm used for the project.
The aggregate crushing value should not exceed 45% for aggregate used for concrete other than for wearing surfaces, and 30 % for concrete for wearing surfaces, such as runways, roads for pavements. Aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact, As an alternative to
However, the erqineer-in-charge at his discretion, may relax some of the limits as a result of-some fLtrrher tests and evidence of satisfactory performance of the aggregates. 3.3 Aggregate Crushing Value-The aggrcgnte crushing value, when determined in accordance with IS: 2386 (Par!
Technical Specifications for Sand as per Bis The latest Indian Standard IS: 383-2016; “Coarse and Fine ... The requirements for crushing value, impact value and abrasion value have been classified under a common head ... only one type of manufactured coarse aggregate and one type of manufactured fine aggregate shall be used.
aggregate crushing value of coarse aggregate. NOTE 1 -The ‘aggregate crushing value’ gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. With aggre- gate of ‘aggregate crushing value’ 30 or higher, the result may be anomalous, and in
5.4.1 (a)(mechanical properties- Aggregate Crushing Value/Ten Percent Fines Value)-1000: Testing Charges-12750(Coarse Aggregate), 9750 (Fine Aggregate) 20 % discount to BIS GSTIN extra as per Government Rule: 5.4.2(a)( Aggregates Impact Value)-500
#1 Crushing value of Aggregate ( IS 2386 Part IV -1963) The crushing value of the coarse aggregate is defined as the relative measure of the resistance which is offered by the aggregate to the crushing under the gradually applied load. #2 Impact value of Aggregate ( IS 2386 Part IV -1963)
Sep 12, 2014 AGGREGATE CRUSHING VALUE This 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 sizes12.5mm 10mm and 2.36mm. Procedure to determine Aggregate Crushing Value. Get Price
gravity of coarse aggregate was determined as 2.309. It was 13% reduce from standard value 2.67 which is in the range from 2.5 to 3.0. The Specific gravity of fine aggregate was also accurate. E. Aggregate Crushing value test: This test was performed as per IS: 2386 (Part IV) – 1963. The crushing value of RCA was 20%.
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