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The Fineness Modulus (FM) is an index number which is roughly proportional to the average size of the particles in an aggregate sample. It is obtained by adding the cumulative percentages coarser than each of the standard sieves used for segregating sand and dividing the cumulative percentage by 100.
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Is there 48 karat gold?
For the benefit of those who do not know what a karat is, the karat (a.k.a. carat) is a measure of the purity of gold alloys. There is no such thing as 48 carat gold simply because carat is a percentage, with 24 being pretty much 100 % purity (you cannot have 200% pure gold, it makes no sense). The most common carats used for gold in bullion, jewelery making and by goldsmiths are:* 24 carat (millesimal fineness 999) * 22 carat (millesimal fineness 916) * 20 carat (millesimal fineness 833) * 18 carat (millesimal fineness 750) * 15 carat (millesimal fineness 625) * 14 carat (millesimal fineness 585) * 10 carat (millesimal fineness 417) * 9 carat (millesimal fineness 375) * 8 carat (millesimal fineness 333) * 1 carat (millesimal fineness 042) Millesimal fineness is a system of denoting the purity of platinum, gold and silver alloys by parts per thousand of pure metal by mass in the alloy. For example, an alloy containing 75% gold is denoted as "750".
What is elastic modulus of shale?
The elastic modulus of shale is between 1-70 GPa
How do you know the material is elastic?
it depends on modulus of elasticity / young's modulus,,,,,,,which is ratio of stress and strain under elastic limit
Why do some coins ring and others not?
Coins are made of different metals.Metals have their own characteristic modulus of elasticity.Due to this modulus(here Young's modulus)different metals have different frequency of vibration.some rings clearly and some others are low in sound.
Is there any rigidity modulus for fluids?
for an isotropic media you can divide the force on every element in two components. -bulk component -rigid component now bulk component is associated with bulk modulus and other is associated with modulus of rigidity(written as meu). now bulk component is the one which causes the matter to get compressed and the rigid component only changes the shape of the volume. now, water do not get compressed, it is incompressible and that's why the the force on it is affected by only the rigid component. thats why the modulus of rigidity is zero.
What is the definition of fineness modulus?
Fineness Modulus is a measurement of the coarseness or fineness of a given aggregate.
How does the fineness modulus of aggregates affect the strength of concrete?
how does the fineness modulus of aggregate affect the strength of concrete
How does fineness modulus of aggregates affect the strength of concrete?
how does the fineness modulus of aggregate affect the strength of concrete
Why fineness modulus of coarse aggregates is more than that of fine aggregates?
how does the fineness modulus of aggregate affect the strength of concrete
What is the significance of fineness modulus?
Fineness Modulus is used to know the size of aggregate grains (Particles) for various measurements used in Civil Engineering. To characterize the overall coarseness or fineness of an aggregate, a concept of fineness modulus is developed. The Fineness Modulus is defined as Fineness Modulus = Σ(Cumulative Retained Percentage) 100 To calculate the fineness modulus, the sum of the cumulative percentages retained on a definitely specified set of sieves needs to be determined, and the result is then divided by 100. The sieves specified for the determination of fineness modulus are No. 100, No. 50, No. 30, No. 16, No. 8, No. 4, 3/8", 3/4", 1.5", 3", and 6". Mirza Usman http://www.facebook.com/Mirza.Usman.Blogger
What is fined?
Fineness Modulus is used to know the size of aggregate grains (Particles) for various measurements used in Civil Engineering. To characterize the overall coarseness or fineness of an aggregate, a concept of fineness modulus is developed. The Fineness Modulus is defined as Fineness Modulus = Σ(Cumulative Retained Percentage) 100 To calculate the fineness modulus, the sum of the cumulative percentages retained on a definitely specified set of sieves needs to be determined, and the result is then divided by 100. The sieves specified for the determination of fineness modulus are No. 100, No. 50, No. 30, No. 16, No. 8, No. 4, 3/8", 3/4", 1.5", 3", and 6". Mirza Usman http://www.facebook.com/Mirza.Usman.Blogger
What is limit of fineness modulus of Fine Agg?
fm 25 to3.5
What is Significance of fineness modulus?
Optimum for grading of aggregates and for surface texture of constructions.
Is that good grading of fine aggregate and fineness modulus any related?
Finess Modulus is just a value (number) indicating the fineness or coarseness of the aggregate. So, a river sand (natural sand) will be in the range of2.5 or so to 2.7 and P-gravel (P-stone, Birds-eye) may be around 5.0 Natural sand is used to make concrete block. Natural sand is also used to make ready mixed structural concrete along with water, cement powder, and a coarse 3/8" to 3/4" aggregate like limestone or gravel. SO, there are ASTM standard that regulate the gradation of aggregates for concrete masonry and structural concrete (ASTM C33 is one of them). Mason sand is used in precast concrete to emulate a fine limestone-like texture. It is also used in mortar and grout.
What is practical use of controlling the grading of concrete aggregate?
Fineness modulus defines the size of the of the aggregates on concrete mix design. There area some limits on it though. If you have high modulus of fineness, the tendency of mixture is to have less pores as possible. The less pores you have, the good is your bonding between each elements. However,less pores means less breathing space for your concrete. This inhibits hydration. Once moisture doesnt escape from concrete, then the strength is very difficult to achieve. On the other hand, low modulus of fineness tend to have lower bonding between concrete elements. However, you can have better curing condition of you have optimum pores on your concrete. The strength can be achieve quickly.
What is the practical use of controlling the grading of concrete aggregate?
Fineness modulus defines the size of the of the aggregates on concrete mix design. There area some limits on it though. If you have high modulus of fineness, the tendency of mixture is to have less pores as possible. The less pores you have, the good is your bonding between each elements. However,less pores means less breathing space for your concrete. This inhibits hydration. Once moisture doesnt escape from concrete, then the strength is very difficult to achieve. On the other hand, low modulus of fineness tend to have lower bonding between concrete elements. However, you can have better curing condition of you have optimum pores on your concrete. The strength can be achieve quickly.
What are the different types of modulus elasticity?
there are different types of modulus it depends on what types of stress is acting on the material if its direct stress then then there is modulus of elasticity,if tis shear stress then its modulus of rigidity and when its volumetric stress it is bulk modulus and so on
