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Gap grading is one
- a)in which one or more intermediate fractions are absent
- b)in which the particle fall within a narrow limit of size fractions
- c)which combines different fractions of fine and coarse aggregates
- d)in which all the particles are of uniform size
Correct answer is option 'A'. Can you explain this answer?
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Gap grading is onea)in which one or more intermediate fractions are a...
Gap-grading is defined as a grading in which one or more intermediate-size fractions are absent. The term continuously graded is used to distinguish the continental grading from gap-grading. On a grading curve, gap-grading is represented by a horizontal line over the range of the size omitted
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Gap grading is onea)in which one or more intermediate fractions are a...
Gap grading is a method used in the grading of aggregates, which refers to the distribution of particle sizes within a given aggregate. In gap grading, one or more intermediate fractions are absent, resulting in a discontinuous gradation curve.
Explanation:
a) One or more intermediate fractions are absent:
In gap grading, the aggregate particles are not uniformly distributed across all size fractions. Instead, there are gaps or missing sizes in the gradation curve. This means that certain intermediate fractions are intentionally left out in the grading process.
b) In gap grading, the particle fall within a narrow limit of size fractions:
Gap grading focuses on a specific range of particle sizes rather than providing a continuous distribution across all sizes. The particle sizes are limited to a narrow range or interval, resulting in a gap between the sizes that are present.
c) Which combines different fractions of fine and coarse aggregates:
This statement describes another grading method known as combined grading. In combined grading, both fine and coarse aggregates are used together to create a more balanced aggregate mix. Gap grading, on the other hand, does not involve combining different fractions of fine and coarse aggregates.
d) In which all the particles are of uniform size:
This statement describes the concept of uniformly graded aggregates where all the particles fall within a specific size range. Gap grading, however, deviates from this principle as it intentionally omits certain intermediate sizes.
The correct answer is option 'A' because gap grading is a grading method in which one or more intermediate fractions are absent. This results in a non-uniform distribution of particle sizes and a discontinuous gradation curve. Gap grading is often used in specific construction applications where certain particle sizes are required or where the presence of certain sizes can be detrimental to the performance of the aggregate mix.
Explanation:
a) One or more intermediate fractions are absent:
In gap grading, the aggregate particles are not uniformly distributed across all size fractions. Instead, there are gaps or missing sizes in the gradation curve. This means that certain intermediate fractions are intentionally left out in the grading process.
b) In gap grading, the particle fall within a narrow limit of size fractions:
Gap grading focuses on a specific range of particle sizes rather than providing a continuous distribution across all sizes. The particle sizes are limited to a narrow range or interval, resulting in a gap between the sizes that are present.
c) Which combines different fractions of fine and coarse aggregates:
This statement describes another grading method known as combined grading. In combined grading, both fine and coarse aggregates are used together to create a more balanced aggregate mix. Gap grading, on the other hand, does not involve combining different fractions of fine and coarse aggregates.
d) In which all the particles are of uniform size:
This statement describes the concept of uniformly graded aggregates where all the particles fall within a specific size range. Gap grading, however, deviates from this principle as it intentionally omits certain intermediate sizes.
The correct answer is option 'A' because gap grading is a grading method in which one or more intermediate fractions are absent. This results in a non-uniform distribution of particle sizes and a discontinuous gradation curve. Gap grading is often used in specific construction applications where certain particle sizes are required or where the presence of certain sizes can be detrimental to the performance of the aggregate mix.
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Gap grading is onea)in which one or more intermediate fractions are absentb)in which the particle fall within a narrow limit of size fractionsc)which combines different fractions of fine and coarse aggregatesd)in which all the particles are of uniform sizeCorrect answer is option 'A'. Can you explain this answer?
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