Table of Contents
Can we use 40mm aggregate?
In general for strength upto 200 kg/cm2 aggregates upto 40 mm may be used and for strength above 300 kg/cm2 aggregate upto 20 mm may be used.
How would the maximum aggregate size affect concrete mix design?
Maximum Aggregate Size As the maximum size of coarse aggregate reduces, surface area of coarse aggregate increases. Higher the surface area, greater is the water demand to coat the particles and generate workability.
Does aggregate reduce the amount of cement required?
Aggregates are generally thought of as inert filler within a concrete mix. Using larger coarse aggregate typically lowers the cost of a concrete mix by reducing cement requirements, the most costly ingredient.
What is 40 mm aggregate?
Coarse Aggregates Concrete 40mm, 40mm
| Packaging Size | 40mm |
|---|---|
| Specific Gravity Test | 2.56 |
| Water Absorption Test | 1.00\% |
| Impact Value Test | 17.74\% |
| Crushing Value Test | 20.50\% |
Does aggregate size matter in concrete?
Typically the most common size of aggregate used in construction is 20mm. A larger size, 40mm, is more common in mass concrete. Larger aggregate diameters reduce the quantity of cement and water needed.
How can the maximum size of aggregates will affect the workability of the concrete with a set of certain amount of water?
Size of Aggregates On the other hand, bigger particles have less surface area, demand less water for wetting surface and require less amount of paste for lubricating. So bigger particles give higher workability for fixed water content.
Why are aggregates used in concrete?
Aggregate materials help to make concrete mixes more compact. They also decrease the consumption of cement and water and contribute to the mechanical strength of the concrete, making them an indispensable ingredient in the construction and maintenance of rigid structures.
What is the maximum size of aggregate used for concrete?
The optimum compressive strength of concrete is reached by using aggregates of 9.5mm maximum size.