Flakiness and elongation index of aggregate
WebThe particle shape of aggregates is determined by the percentages of flaky and elongated particles contained in it. In. the case of gravel it is determined by its angularity number. For base course and construction of bituminous and. cement concrete types, the presence of flaky and elongated particles are considered undesirable as they may cause. WebIn this video , i had given full detail practical procedure of determining flakiness and elongation index of coarse aggregate.
Flakiness and elongation index of aggregate
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Webweight of coarse aggregate is undesirable. The test is carried on aggregate sizes between 63 mm and 6.3 mm. Apparatus: 1- A balance of accuracy of 0.1% of the sample weight. 2- A set of sieves. 3- A special scale for elongation index. 4- … WebApr 8, 2024 · Shape test on coarse aggregates constitutes flakiness Index and elongation index tests. The particle size and shape of aggregate is one of the major factors …
WebMaterials with higher flakiness index are unacceptable as they are weak in Pavement Design, Evaluation & Management Notes of Pavement Materials. load carrying due to very small moment of inertia along the thinner axis. The test is performed according to IS-2386(I):1963 Elongation Index is the measure of elongation of aggregate group. An ... WebMay 8, 2013 · Objective For determination of elongation index of coarse aggregate, where the size of the coarse aggregate are larger than 6.3 mm. Reference Standards IS: 2386 (Part I) – 1963 – Method of test for aggregates for concrete (Part I) Particle size and shape. Equipment & Apparatus Length gauge Sieves …
WebFormula for flakiness index of aggregate: Where, X = The weight of material passing through the various thickness gauges and. W = The weight of aggregate passing … WebMay 9, 2024 · To Determine Flakiness Index and Elongation Index of Aggregates. ... An aggregate is said to be elongated if its largest lateral dimension is greater than 1.8 times the mean dimension. Apparatus. Standard I.S. sieves 63,50,40,30,20,16,12.5,10 & 6.3mm. Flakiness gauge. Elongation gauge.
WebElongation index of an aggregate is the percentage by weight of particles whose greatest dimension (length) is greater than one and four-fifth times (1.8 times or 9/5 times) their mean dimension. It is measured on particles …
WebDec 6, 2016 · Flakiness and the shape of coarse aggregate in general have an appreciable effect on the workability of concrete. An increase in angularity from minimum to … in and out burger arvadaWebFlakiness & Elongation of Aggregates is measured using a thickness gauge and a length gauge to hand-try particles when determining the flakiness index and elongation … duval county public school antivirusWebCombined Flakiness Gauge and Elongation Index of Aggregate, Find Details and Price about Combined Flakiness and Elongation Index Elongation Index Test from … duval county public indexWebFor more information read our blog Characteristics of Aggregates: Shape, Size, and Specific Gravity.. Void Content measures the angularity, sphericity, and surface texture of fine and coarse aggregates.; Proportional Calipers are efficient devices that quickly determine percentages of elongated and flat particles in coarse aggregate fractions.; Flakiness & … in and out burger associate loginWebBS-1241 specifies a Flakiness index not exceeding 30% irrespective of the aggregate size. Maximum permitted Elongated index is 35, 40 or 45% for aggregate sizes 2 ½’’ – 2’’, 1 ½’’ – ¾’’ & ½’’ – 3/8’’. Both Flakiness and … duval county public school focus loginWebTable 4 presents the results obtained from laboratory test conducted on physical properties of all the aggregates in terms of water absorption, aggregate impact value, aggregate … in and out burger associateduval county public school portal