how to classify aggregate according to its shape,elongated aggregate. the aggregate is said to be elongated when its length is greater than 180% of its mean dimension. 6. flaky & elongated aggregate. aggregate is said to be flaky and elongated when it satisfies both the above conditions. generally elongated or flaky particles in excess of 10 to 15% are not desirable..classification of aggregates based on size and shape,flaky and elongated aggregates when the aggregate length is larger than its width and width is larger than its thickness then it is said to be flaky and elongated aggregates. the above 3 types of aggregates are not suitable for concrete mixing. these.
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6- flaky and elongated aggregates when the aggregate length is larger than its width and width is larger than its thickness then it is said to be flaky and elongated aggregates. the above types (flaky, elongated, and flaky and elongated) of aggregates are not suitable for concrete mixing. these are generally obtained from the poorly crushed rocks.
an aggregate particle is said to be flaky if its thickness (least dimension) is less than 0.6 times its mean size (v) elongated particle an aggregate particle is said to be elongated if its length (largest dimension) is more than 1.8 times its mean size
flaky aggregates – the flaky aggregates are having a very light thickness, and it can easily crack. due to its lower workability, it is not used in concrete, and also it quickly gets broken due to its minor thickness. flaky & elongated aggregates – the flaky & elongated aggregates are having less thickness &
when an aggregate particle has a thickness less than 0.6m of its mean sieve size, it is considered flaky. the aggregate to be classified is separated into seven sieve fractions from 6.3 to 63 mm and each fraction is examined separately. each sieve is made from heavy gauge steel and is coated with electrostatic paint.
aggregates types and classifications . flaky and elongated aggregates. when the width is larger than its thickness and the aggregate length is larger than its width, the material is then called flaky and elongated aggregates. irregular aggregates. irregular aggregates are available in the form of gravel and pit sands. they are partly shaped by
flaky and elongated aggregates when the aggregate length is larger than its width and width is larger than its thickness then it is said to be flaky and elongated aggregates. the above three types of aggregates are not suitable for concrete mixing. these are
flaky and elongated aggregates; flaky and elongated aggregates. an aggregate is termed flaky when its least thickness is less than three-fifths of its mean dimension. the mean dimension of the aggregate the average of the sieve size, through which the particles pass and retained, respectively.
the particle shape of aggregates is determined by the percentages of flaky and elongated particles contained in it. for base course and construction of bituminous and cement concrete types, the presence of flaky and elongated particles are considered undesirable as these cause inherent weakness with possibilities of breaking down under heavy loads.
the particle shape of aggregates is determined by the percentage of flaky (layered) and elongated particles contain in it. 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 inherent weakness with possibilities of breaking down under heavy loads.
the particle shape of aggregates is determined by the percentages of flaky and elongated particle 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 inherent weakness with possibilities of breaking down
aggregates which are flaky and/or elongated will often lower the workability of a concrete mix and may also affect long term durability. in bituminous mixtures flaky aggregate makes for a harsh mix and may also crack and break up during compaction by rolling. the product has been added to your basket.
flakiness and elongation test. 1.0 introduction. the type of rocks and the type of crushing machine highly determine the shape and size of the aggregates produced. elongated and flaky stones are normally not very suitable for road works since the shape and the size make them difficult to compact.
elongated and flaky particles in aggregate. generally, hard and brittle rocks are easy to produce elongated and flaky particles when they are broken. crusher based on attrition crushing produce high content of elongated and flaky particles, and without inner crack, such as jaw crusher, cone crusher.
a flaky aggregate is said to be elongated if its length is equal to the mean size twice the mean size thrice the mean size four times the mean size. an aggregate which passes through 25 mm i.s. sieve and is retained on 20 mm sieve, is said to be flaky if its least dimension is less than solve it
separation of flaky material- each fraction shall be gauged in turn for thickness on a metal gauge of the pattern shown in fig. 3, or in bulk on sieves having elongated slots. the width of the slot used in the gauge or sieve shall be of the dimensions specified in co1. 3 of table 1
elongated and flaky aggregate, when used in the construction of pavement may result in failure of the pavement due to their random position under repeated loading and vibration. it is important to keep the amount of flaky and elongated aggregate within permissible levels.
flaky and elongated aggregates can adversely affect concrete. flaky and elongated aggregates are difficult to compact. therefore using flaky and elongated aggregates will reduce concrete workability, which required more amount of water to produce a workable mix. increasing water content will reduce concrete strength and durability.
so using flaky and elongated aggregates might lead to failure of concrete and h continue reading flaky means have less thickness, elongated means having more length.
flaky and elongated particles are considered undesirable for base coarse construction as they may cause weakness with possibilities of braking down under heavy loads. bs-1241 specifies a flakiness index not exceeding 30% irrespective of the aggregate size.
question: a flaky aggregate is said to be elongated if its length is. 1 equal to the mean size; 2 twice the mean size; 3 thrice the mean size; 4 four times the mean size; answer: option 2. workspace. report. subscribe. notify of {} [+] {} [+] 0 comments . inline feedbacks. view
elongated as well as flaky aggregates have a tendency to break along their long axis, making the concrete prone to failure against compressive loads. angular aggregates assure high compressive strength in concrete because of the interlocking between the angular aggregates due to their higher specific surface area.
flaky particles. the particles whose least dimension is less than 0.6 times the mean size dimensions. elongated particles. the particles whose greatest dimension is greater than 1.8 times the mean size dimension. mean size of aggregates. mean size of aggregates is defined as the mean of two seive sizes, between which the particle is retained.
flaky aggregate particles and elongated aggregate particles should be avoided in pavement construction, particularly in surface course. if the flaky aggregate particles and elongated aggregate particles are present in appreciable proportions, then the strength of pavement construction’s layer would be adversely affected due to probability of breaking down under heavy loads.
elongated aggregate: their size is 1.8 times or nine-fifths of its mean dimension. flaky aggregate: at least the lateral dimension should be lower than 0.6 times or three-fifths of the common dimension, in a plane oriented downward with water and air. conversely have an effect on the durability and are restricted to a maximum of 15%.