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Raw materials that are a component in concrete, aggregates are inert granular materials such as sand, gravel or crushed stone. Coarse aggregates are particles greater than 4.75mm, but they generally range between 9.5mm to 37.5mm in diameter. Primary coarse aggregates come from the land or water. Secondary aggregates are the by-products of extractive operations. The third source coarse aggregates come from is recycled aggregate, which is sand, and recycled concrete aggregate.
Tobin Boyle
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How coarse aggregate can be classified as per IS?
as we know we have sieve sizes. aggregates which got retained in 4.75 mm sieve size is known as coarse aggregates or we can say aggregates having size more than 4.75mm.
What would be the effect upon the unit weight of the fine and coarse aggregates be combined?
what would be the effect upon the unit weight of the fine and coarse aggregates be combined
What is the diameter of coarse aggregates that used to strip foundation?
20mm
Which materials are considered inactive ingredients in concrete?
fine and coarse aggregates
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 would be the effect upon the unit weight if the fine and coarse aggregates be combined?
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What is the cement content for M7.5 grade concrete?
For M7.5 concrete, the common mix ratio is 1:4:8. This means:1 part cement 4 parts fine aggregates (sand)8 parts coarse aggregates. These ratio is by volume.
Why suitable coarse and fine aggregate used in the concrete ingredient?
aggregates are used to concrete for following purposes: 1.if totally binding materials like cement is used in concrete, the cost of concrete will be high which is uneconomical. 2.to prevent high shrinkage of concrete mix fine aggregates are used. 3.to increase the volume of concrete mix aggregates are used.
What is maximum and minimum size of aggregates used in rhe rapid chloride permeability test?
For Rapid Chloride Permeability Test,which is shortly referred to as RCPT concrete size of coarse aggregates will be 3/8" and 3/4" or 10mm and 20mm respectively.
How coarse aggregate shape affect workability?
Aggregates with angular particles are more difficulties to compact than one with rounded particles and therefor,requires more water in the mix to act as alubricant.this additional water, on evaporation ,tends to leave void spaces in the hardened concrete made with rounded aggregates particles which requires less water for compaction.the nature of the particles of an aggregates will also affect workability.(
What are the different types of aggregates?
There are two different types of aggregates namely,Fine aggregates - size of the aggregate is less than 4.75 mmExample : SandCoarse aggregates - Size of the aggregate is more than 4.75 mmExample : Gravel
What ASTM coves the sampling of aggregates?
ASTM D75 is the ASTM that covers the sampling of aggregates.
