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What is difference between characterstic strength and compressive strength?
Wiki User
∙ 14y ago
A characteristic strength is the strength of the material used for design purpose, and is statistically defined by the lower 5% fractile of a bell curve. Compressive strength is a generic term that could refer to anything
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThe flexural strength is the strength of a material in bending where the top surface is tension and the bottom surface compression
The compressive strength is the strength of a material in axial compression loading, where the entire area is in compression.
Often,the values are close to each other.
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What is the difference between fc and fcu in concrete?
f ′c: concrete compressive strength at 28 days (compression is negative) fcu: concrete crushing strength (compression is negative)
What is the difference between compressive strength and target strength?
Compressive strength of concrete is defined as the concrete cube of 150 mm x 150 mm x 150 mm with specified proportion with 28 days curing.Target mean strength - In order that not more than the specified proportion of test results are likely to fall below the characteristic strength, the concrete mix has to be designed for a somewhat higher target average compressive strength (fck).__fck = fck + t * swhere ___fck is target average compressive strength at 28 days,fck is a characteristic compressive strength at 28 days ands standard deviationt a statistic, depending upon the accepted proportion of low results and the number of tests.
What is difference between 43 and 53 grade opc cement?
43 grade OPC Cement it denotes the compressive strength of concrete in 43 Mega pascals will attain in 28 days. it is normally used for pavements, Non RCC structures and which are not important for initial strength. where as 53 Grade OPC Cement it denotes the compressive strength of 53 Mega Pascals will attain in concrete with the 28days, and it is used for RCC strengths and which are important to gain initial strength.
Why is tensile strength stronger than compressive strength?
Neither tensile strength nor compressive strength is inherently "stronger." Some materials are stronger in tension; other materials are stronger in compression. For example, rope is much stronger in tension than in compression, but concrete is much stronger in compression than in tension.
What is the compressive strength of M35 concrete at 28 days?
35N/mm2 actually, the '35' respresents the characteristic design strength of the concrete. this strength is pivotal in design as its the 'lowest fair estimate' of strength.in reality tere is a margin for error (between 5-10MPa)and a 5% defectives built in to a normal probability curve.in my latest research i have found that in some cases the characteristic design strength (in your case 35MPa) can almost be underestimated by 20%.the importance is on-site testing, but as previously stated, if you design to 35MPa... you are definitely on the safe side of concretes inevitable variability
What is the difference between Crushing strength and compressive strength?
nothing
What is the difference between a compressive force and a compressive strength?
The ability to compress is compressive strength but when it acts upon something it becomes latter one
What is the difference between comppresive and tensile strength?
Compressive strength is generated by a force which is acting into or towards the centre of an object. Tensile strength measures the force required to pull something such as rope.
Different between cube and cylinder in concrete compressive test?
The difference in compressive strength is due to the difference between the modulus of elasticity of concrete and that of the steel which is used to apply the compressive force on the concrete. The pressure applies a lateral confinement pressure which is equal to d/3 meaning that for the cylinder, 2d/3 is confined leaving d/3 unconfined whereas for the cylinder 2d/3 is confined means all of the cube is confined. This leads to the cube having a higher compressive strength that the cylinder. For more information, try to read about the triaxial test and the effect of confinement on the compressive strength of soil samples.
What is the difference between fc and fcu in concrete?
f ′c: concrete compressive strength at 28 days (compression is negative) fcu: concrete crushing strength (compression is negative)
What is the difference between compressive strength and target strength?
Compressive strength of concrete is defined as the concrete cube of 150 mm x 150 mm x 150 mm with specified proportion with 28 days curing.Target mean strength - In order that not more than the specified proportion of test results are likely to fall below the characteristic strength, the concrete mix has to be designed for a somewhat higher target average compressive strength (fck).__fck = fck + t * swhere ___fck is target average compressive strength at 28 days,fck is a characteristic compressive strength at 28 days ands standard deviationt a statistic, depending upon the accepted proportion of low results and the number of tests.
What is difference between 43 and 53 grade opc cement?
43 grade OPC Cement it denotes the compressive strength of concrete in 43 Mega pascals will attain in 28 days. it is normally used for pavements, Non RCC structures and which are not important for initial strength. where as 53 Grade OPC Cement it denotes the compressive strength of 53 Mega Pascals will attain in concrete with the 28days, and it is used for RCC strengths and which are important to gain initial strength.
Why is tensile strength stronger than compressive strength?
Neither tensile strength nor compressive strength is inherently "stronger." Some materials are stronger in tension; other materials are stronger in compression. For example, rope is much stronger in tension than in compression, but concrete is much stronger in compression than in tension.
What is the compressive strength of M35 concrete at 28 days?
35N/mm2 actually, the '35' respresents the characteristic design strength of the concrete. this strength is pivotal in design as its the 'lowest fair estimate' of strength.in reality tere is a margin for error (between 5-10MPa)and a 5% defectives built in to a normal probability curve.in my latest research i have found that in some cases the characteristic design strength (in your case 35MPa) can almost be underestimated by 20%.the importance is on-site testing, but as previously stated, if you design to 35MPa... you are definitely on the safe side of concretes inevitable variability
What is the difference between strength and strong?
there is no differences between strength and strong. Only that strong is a synonym of strength.
How do sientists classify soil?
The US Occupational Safety and Health Administration (OSHA) uses 5 soil classifications: Stable Rock Type A - cohesive, plastic soils with unconfined compressive strength greater than 1.5 ton/sf Type B - cohesive soils with unconfined compressive strength between 0.5 and 1.5 ton/sf Type C - granular or cohesive soils with unconfined compressive strength less than 0.5 ton.sf Type C60
In splitting tensile test actually you are getting compressive strength but in answer you are writing it as tensile strength why?
The splitting tensile test specimen is subjected to a compressive load. For brittle matrixes such as cementitious products, the compressive strength is typically around an order of magnitude higher than tensile strength. On a microstructure scale, the compressive forces are trying to crush the individual crystallites while the tensile forces only have to fracture the connections between crystallites. The splitting tensile test specimen fails due to the tensile forces generated as it distorts perpendicular to the applied compressive load. In practice, a loading cap on the loading faces of the specimen generates a compressive column in the sample and the true failure is in shear along this compressive column due to the tensile forces. In practicality, this test is also useful for flexural testing of weak composite materials where in both cases a compressive load generates tensile forces that initiate a failure that travels to the neutral axis resulting in shear as well.
