Crushing Value Of Coarse Aggregate Definition. May 08 2013nbsp018332Objective For determination of the aggregate crushing value of coarse aggregate which passes 125 mm IS sieve and retained on 10 mm IS sieve Reference Standard IS 2386 Part IV1963 Methods of test for aggregate for concrete Part IV Mechanical Properties Equipment amp Apparatus Steel Cylinder Sieves 125mm10mm Cylindrical metal
WhatsAppGet PriceGet A Quote
Crushing Value Test of Aggregates – Importance, Procedure, and Standard limits. The aggregate crushing value test on coarse aggregates gives a relative measure of an aggregate under a gradually applied compressive load. It is a numerical index of the strength of the aggregates. This test is helpful in the construction of roads and pavements.
WhatsAppGet PriceGet A Quote
Clarification: The impact value of an aggregate is used to measure its toughness; if it is tough then it has a low impact value, hardness is for resistance to abrasion, strength is resistance to crushing. 9. The capability of aggregate to resist more weathering action and wheel load is called _____ a) Hardness b) Toughness c) Durability
WhatsAppGet PriceGet A Quote
TESTING OF AGGREGATE CRUSHING VALUE. Aggregate crushing value is an indicator of the crushing resistance of the aggregates when a compressive load is increased. It is tested in accordance with BS 812:110, 1990 and aggregate passing a 14mm test sieve and retained on 10mm sieve are considered for the testing. The allowable range is 17- 41.
WhatsAppGet PriceGet A Quote
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 obtained when test aggregates are subjected to a specified load under standardized conditions.
WhatsAppGet PriceGet A Quote
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 obtained when test aggregates are subjected to a specified load under standardized conditions.
WhatsAppGet PriceGet A Quote
So, the crushing value of coarse aggregate is very important for the durability of PA mixture [1 – 3]. Yan et al. proposed that the requirement for the crushing value should be no more than 20% [4]. Huang proposed that the crushing value of coarse aggregates for OGFC mixture should be no more than 25% [5].
WhatsAppGet PriceGet A Quote
aggregate crushing value of coarse aggregate. aggregate crushing value of coarse aggregate. If you want to get more detailed product information and prices, ZME recommend that you get in touch with us through » Learn More. AGGREGATE CRUSHING VALUE (IS:2386Part 41963) CivilBlog.Org
WhatsAppGet PriceGet A Quote
Aggregate crushing value is defined as the percentage by weight of the crushed (or finer) material obtained when the test aggregates are subjected to a specified load under standardized conditions, and the strength of the aggregate used in road construction is expressed by numerical index.
WhatsAppGet PriceGet A Quote
~Indian Roads Congress and IS) have specified that the aggregate crushing value of the coarse aggregates used for cement concrete pavement at surface should not exceed 30 percent. For aggregates used for concreteothet than for wearing surfaces, the aggregate crushing value shall not exceed 45 percent, according to the ISS.
WhatsAppGet PriceGet A Quote
The aggregate crushing value test shows the strength of aggregate which is one of the most important properties of coarse aggregate. The aggregate crushing value gives a related action of resistance to crushing under a gradually applied compressive load. For achieving a premium quality of pavement, an aggregate of higher crushing strength such
WhatsAppGet PriceGet A Quote
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 obtained when test aggregates are subjected to a specified load under standardized conditions.
WhatsAppGet PriceGet A Quote
Aggregate Crushing Value. Aggregates used in the construction, should be strong enough to resist crushing. If the aggregates are weak, the stability of the structure is likely to be adversely affected. The strength of coarse aggregates is assessed by aggregate crushing test. The aggregate crushing value provides a relative measure of resistance
WhatsAppGet PriceGet A Quote
It is recommended that the crushing value of aggregate should be less than 30%. If it is more than 30 % then 10% finer aggregate is suggested to use. The aggregate whose crushing value is less than 30% can be used for cement concrete road. The aggregate whose crushing value is less than 40% can be used for wearing surface.
WhatsAppGet PriceGet A Quote
Objective For determination of the aggregate crushing value of coarse aggregate, which passes 12.5 mm. IS sieve and retained on 10 mm. IS sieve. Reference Standard IS: 2386 (Part IV)-1963 Methods of test for aggregate for concrete Part IV Mechanical Properties. Equipment & Apparatus Steel Cylinder Sieves (12.5mm,10mm) Cylindrical metal measure Tamping Rod Balance (0-10kg) […]
WhatsAppGet PriceGet A Quote
When the mortar was completely removed, coarse natural aggregates were obtained. The attached mortar contents of the RCA and the C-RCA in the test were derived as follows : (6) Attached mortar content (%) = M 0-M n M 0 × 100 where M n is the mass of coarse natural aggregates in RCA and C-RCA samples after the crushing stress test was performed
WhatsAppGet PriceGet A Quote
Crushing Value Of Coarse Aggregate Definition. May 08 2013nbsp018332Objective For determination of the aggregate crushing value of coarse aggregate which passes 125 mm IS sieve and retained on 10 mm IS sieve Reference Standard IS 2386 Part IV1963 Methods of test for aggregate for concrete Part IV Mechanical Properties Equipment amp Apparatus Steel Cylinder Sieves 125mm10mm Cylindrical metal
WhatsAppGet PriceGet A Quote
TESTING OF AGGREGATE CRUSHING VALUE. Aggregate crushing value is an indicator of the crushing resistance of the aggregates when a compressive load is increased. It is tested in accordance with BS 812:110, 1990 and aggregate passing a 14mm test sieve and retained on 10mm sieve are considered for the testing. The allowable range is 17- 41.
WhatsAppGet PriceGet A Quote
• 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. • Aggregate crushing value is a numerical index of the strength of the aggregate and it is used in construction of roads and pavements. 51.
WhatsAppGet PriceGet A Quote
Procedure of Aggregate Crushing Value Test:-. Sieve the test material through 12.5 mm and 10.0 mm IS sieve. Take test samples of aggregates passing through 12.5 mm IS sieve and retained on 10 mm IS sieve (minimum 3 Kg). Dry theme in an oven for 4 hours at a temperature of 100 °C to 110 °C and then cool at room temperature.
WhatsAppGet PriceGet A Quote
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
WhatsAppGet PriceGet A Quote
The crushing value criterion of coarse aggregates used in the PA mixture was suggested to be no greater than 16% after comparative analysis. Discover the world''s research.
WhatsAppGet PriceGet A Quote
The aggregate crushing value test shows the strength of aggregate which is one of the most important properties of coarse aggregate. The aggregate crushing value gives a related action of resistance to crushing under a gradually applied compressive load. For achieving a premium quality of pavement, an aggregate of higher crushing strength such
WhatsAppGet PriceGet A Quote
Aggregate Crushing Value Test is important to test to be performed on aggregate. The strength of aggregate parent rock is determined by preparing cylindrical shape specimens of size 25 mm diameter and 25 mm height. IS Code For Crushing Value Test. Aggregate Crushing value test IS Code is 2386-4 (1963): Methods of Test for Aggregates for Concrete
WhatsAppGet PriceGet A Quote
i. Crushing Value. The crushing value gives the resistance of a coarse aggregate to crushing under the application of compressive load. j. Deleterious Materials. Coarse aggregate should be free from deleterious materials such as clay, silt, dust, salt contamination, organic materials, etc. because these materials weaken the bond. k. Surface Water
WhatsAppGet PriceGet A Quote
Aggregate Crushing Value Test . 552010Aggregate 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 .
WhatsAppGet PriceGet A Quote
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 obtained when test aggregates are subjected to a specified load under standardized conditions.
WhatsAppGet PriceGet A Quote
Coarse aggregate from these sources were collected and sieved to obtain desired size of aggregate samples. Physical test i.e., specific gravity and water absorption of coarse aggregate obtained from these sources were determined. Mechanical test such as aggregate crushing strength test, impact value test & Los Angles test were performed.
WhatsAppGet PriceGet A Quote
3. Results and Discussions 3.1. Crushed Aggregate’s Effects on Slumps of Concrete. The Figure 1 depicts slum value of A-1 coarse aggregates for all five groups. For Impact Crushed (A-1) coarse aggregates slump values were evaluated for all five groups and it was evident from experiment that, there was a steady decrease in slump value with the decrease of w/c ratio.
WhatsAppGet PriceGet A Quote
Objective For determination of the aggregates 10% fines value of coarse aggregate, which passes 12.5 mm. IS sieve and retained on 10 mm IS sieve Reference Standards IS : 2386 (Part IV)-1963 Methods of test for aggregate for concrete Part IV Mechanical Properties. Equipment & Apparatus Steel cylinder Sieves (12.5mm,10mm) Cylindrical metal measure Tamping Rod […]
WhatsAppGet PriceGet A Quote
WhatsAPP 24h online service
24h Online Chat
