No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Aggregate Crushing Value (ACV) The aggregate Impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact, which in some aggregates differs from its resistance to a slowly applied compressive load. With aggregate of aggregate impact value higher than 30 the result may be anomalous.
The crushing & impact values of recycled aggregate satisfy the BIS specifications except RCA2 type of recycled aggregate for impact value as originally it is low grade rubbles. Compressive Strength The average compressive strengths cubes cast are determined as per IS 516 using RCA and natural aggregate at the age 1, 3, 7, 14, 28, 56 and 90 days ...
ii) Coarse aggregate: Single Size – 10 mm, 12.5 mm, 16 mm, 20 mm, 40 mm & 63 mm Graded aggregate – 12.5 mm, 16 mm, 20 mm & 40 mm For Mass Concrete – Small / Medium / Large/ Very large Coarse aggregates are further grouped into following groups based on size: Type of coarse aggregate Group – I Group –II
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 […]
RMS T203 Particle distribution of aggregates finer than 75 µm (by washing) RMS T204 Los Angeles Test for Coarse Aggregates. RMS T205 Aggregate Crushing Value (ACV) RMS T209 Particle density & water absorption of coarse aggregate. RMS T210 Density and Water Absorption of Fine Aggregate. RMS T211 Uncompacted bulk density of aggregate
Calculations: Aggregate Crushing Value = (B/A) * 100 % * The value is higher when more percentage of aggregates crush and break into smaller pieces which indicates the aggregates are of a lower quality. * Aggregate crushing value < 45% for aggregates used for concrete for non wearing surfaces and <25% for wearing surfaces like runways and roadways.
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 …
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
Jan 25, 2021· Aggregate Crushing Value (ACV) IS: 2386 2016 Method of Test for Aggregates for Concrete part IV Mechanical properties (Aggregate Crushing value) (The 'aggregate crushing value' gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load.
Jan 20, 2020· Crushing resistance of coarse aggregate is the key to the stability and durability of the skeleton structure of permeable asphalt (PA) mixture. To determine the technical requirements of crushing value of coarse aggregate used in PA mixture, step-loading compression tests were conducted on the mixtures of PA-13 and a control asphalt mixture AC-13, respectively.
It also showed the moisture percent contained in the fine aggregate sample was 2.56%, the workability of the tested concrete of mix ratio1: 1 1/2 2 was 0.95, the Impact Value (toughness) of the ...
bis crushing value coarse aggregate. bis crushing value coarse aggregate bis crushing value coarse aggregate - eazicarts 's PF impact crusher is very popular because of its good performance in the second crushing and tertiary crushing.. read more; PFW Impact Crusher.
BUREAU OF INDIAN STANDARDS Manak Bhawan, 9, Bahadur Shah Zafar Marg, New Delhi – 110002 1 ... Coarse aggregates are further classified as given below depending on source: (i) Uncrushed gravel or stone ... 3 Aggregate crushing value/Ten Percent Fines Value (Clause 5.4.1) - …
4.2.1 These shall be coarse and fine aggregates as defined in 3.1.4 and 3.2 [ see also Note under 3.2 (d)]. The manufactured aggregates shall be permitted with their extent of utilization as percent of total mass of fine or coarse aggregate as the case may be, as indicated in Table 1 against each, for use in plain and reinforced
3.2 Coarse Aggregates-Size and Grading Requirement 3.2.1. The coarse aggregates shall conform to one of the grading given in Table 2. Grading 1 shall be used only for sub-base courses, with a compacted layer thickness of 100 mm. 3.2.2. The size of aggregates to be used would depend on the type of aggregates available and compacted thickness of ...
Concrete is a mixture of different raw materials like coarse aggregate, fine aggregate, cement, water and sometimes admixtures. ... (BIS 1970) for structural concrete only. ... Crushing value ...
Coarse Aggregate (Recycled and Natural Coarse Aggregates) The fractions from 20 mm to 4.75 mm are used as coarse aggregate. The Coarse Aggregates from crushed Basalt rock, conforming to IS: 383 is being use. The Flakiness and Elongation Index were maintained well below 15%. Natural Aggregate Recycled Aggregate
Aggregate Crushing Value. Aggregate Impact Value. Flakiness Index of Aggregate. Abrasion Test of Aggregate. Gradation Test off Aggregate. Concrete : # Workability of Concrete. Slump Cone Test.
Apr 03, 2018· The BIS code discusses the selection of aggregates for Concrete and structure works. Guide the designer in choosing corr...
Oct 03, 2019· The crushed aggregate sample which is finer than 2.36 mm is separated and expressed as a percentage of the original weight taken in the mould. The percentage of weight passed through the 2.36m IS sieve is known as Aggregate crushing value.. In situations, when the aggregate value 30 or higher the result may be a mistake and in such cases, the "ten percent fines value…
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
Veera Reddy reported on impact value and crushing value of ceramic scrap as 18.2 and 24.7% respectively. These values were within the permissible limits according to IS 383-1970, hence it was safe to use as a coarse aggregate in concrete composition. B. Scope of Investigation The general specification for civil engineering works in
grading requirements of BIS (IS: 383-1970) is used during this work. ... Aggregate crushing value 11.26 Aggregate impact value 11.11 Specific gravity 2.70 Water absorption 3.06% ... Coarse Aggregates (Recycled) 0 220 440 660 880 1100 Table 4: Mix Proportion Details ...