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Apr
Size Of Aggregate Used In Road Construction. 1 use of gravel- mix of fine gravel medium size gravel and course gravel used for Foundation purpose for building construction. For example the State Highway Department may select No. 20mm size of gravel used for RCC work of building construction like formation of column beam and slab. Production of standard sizes by blending two or more different components is permitted.
Aggregate can be used in a number of ways in construction. A common subbase aggregate size in Norway is 22125 mm. This is best perfect ideal standard and maximum size of aggregate used in Road construction of pavement walkway driveway and etc. 5 l-inch top size and No. The usual range employed is between 95mm and 375mm in diameter. Each layer is tamped 25 times with at standard tamping rod.
Flaky and elongated particles have less strength than rounded and cubical.
In roads and railway ballast the aggregates are used. It is the aggregate used for road construction. The test sample is weighed and placed in the test cylinder in three layers each layer being tamped again. Standard Sizes 61 Standard aggregate sizes shall conform to the require-. Dry aggregates passing through 125 mm sieves and retained 10 mm sieves are filled in a cylindrical measure of 115 mm diameter and 18 cm height in three layers. In this lecture i discussed these t.