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how does the fineness modulus of aggregate affect the strength of concrete
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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 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 definition of fineness modulus?
Fineness Modulus is a measurement of the coarseness or fineness of a given aggregate.
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 limit of fineness modulus of Fine Agg?
fm 25 to3.5
How does the 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 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 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 Significance of fineness modulus?
Optimum for grading of aggregates and for surface texture of constructions.
What is the definition of fineness modulus?
Fineness Modulus is a measurement of the coarseness or fineness of a given aggregate.
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 the ypung modulus for concrete?
The modulus of elasticity of concrete is denoted by Ec .Ec = 5000 sqrt fck as per IS standardswhere, fck- The compressive strength of concrete at 28 days in N/mm2 .
What is the fineness modulus of sand?
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.
What is limit of fineness modulus of Fine Agg?
fm 25 to3.5
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.
