SLICE of gap - graded concrete shows a field of fine aggregate interspersed with slightly ISOLATED, large aggregate pieces embedded in the fine aggregate.∴ A curve showing percentage PASSING on ordinate v/s sieve size on abscissa of aggregate a HORIZONTAL portion for certain RANGE indicates gap grading.Advantage of gap grading:1. Requirements of sand is reduced by 26 to 40%.2. Specific area of area of total aggregates will be reduced due to less use of sand..3. Point contact between various size fractions is maintained, thus reducing the dying shrinkage.4. It requires less cement as the net volume of voids to a greater extent.

"> SLICE of gap - graded concrete shows a field of fine aggregate interspersed with slightly ISOLATED, large aggregate pieces embedded in the fine aggregate.∴ A curve showing percentage PASSING on ordinate v/s sieve size on abscissa of aggregate a HORIZONTAL portion for certain RANGE indicates gap grading.Advantage of gap grading:1. Requirements of sand is reduced by 26 to 40%.2. Specific area of area of total aggregates will be reduced due to less use of sand..3. Point contact between various size fractions is maintained, thus reducing the dying shrinkage.4. It requires less cement as the net volume of voids to a greater extent.

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A curve showing percentage passing on ordinate v/s sieve size on abscissa of aggregate a horizontal portion for certain range indicates:

Highway Engineering Stone Aggregates in Highway Engineering . 6 months ago

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Gap - graded aggregate consists of coarse aggregate particles that are similar in size but significantly different in size from the fine aggregate. A core SLICE of gap - graded concrete shows a field of fine aggregate interspersed with slightly ISOLATED, large aggregate pieces embedded in the fine aggregate.∴ A curve showing percentage PASSING on ordinate v/s sieve size on abscissa of aggregate a HORIZONTAL portion for certain RANGE indicates gap grading.Advantage of gap grading:1. Requirements of sand is reduced by 26 to 40%.2. Specific area of area of total aggregates will be reduced due to less use of sand..3. Point contact between various size fractions is maintained, thus reducing the dying shrinkage.4. It requires less cement as the net volume of voids to a greater extent.

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Posted on 18 Nov 2024, this text provides information on Highway Engineering related to Stone Aggregates in Highway Engineering. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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