What Are the Different Types of Aggregates Used in Road Construction?
There are a number of aggregates used in concrete mixtures and different aggregates with similar characteristics to concrete. You can acquire aggregates, Penticton, by destroying naturally occurring rocks. The properties of aggregates depend upon the original rock. They can be metamorphic, igneous or other types.
The aggregates are checked via certain tests to determine how suitable they are for different works. In this article, you will learn about the multiple types of aggregates used in road construction.
Different Types of Aggregates
The different types of aggregates used in road construction are as follows:
- Fine aggregate
Aggregates that have a grain size less than 4.75 mm are called fine aggregates. The number of deleterious materials in fine aggregate should not be more than 5%.
- Coarse aggregate
The aggregates with more than 4.7 mm particles are called coarse aggregates. For RCC road construction, a 20 mm coarse aggregate is being used.
- Lightweight aggregate
The unit weight of these types of Aggregates in Penticton, bc weighs around 121 KN/m3. These aggregates are usually natural like sawdust, diatomite or artificial like coke breeze, expanded perlite and much more.
- Normal weight aggregate
A normal weight aggregate produces concrete along with unit loads from 23 to 36 KN/m3. The crushing strength is at 28 days, between 15 to 40MPa. Some of the common aggregates used are sandstone, limestone, basalt and granite.
- Heavyweight aggregate
These heavy aggregates have certain gravities that range from 2.8 to 2.9, and the unit weighs around 28 and 29 kN/m3.
- Natural aggregate
These aggregates in Penticton are acquired from natural deposits of gravel and sand from quarries after the rocks are cut. The aggregates found from igneous rocks are tough, dense and hard. They also have a glassy texture, but aggregates obtained from sedimentary rocks can be soft or hard and light or heavy.
- Artificial aggregate
Some common artificial type aggregates are air-cooled blast-furnace slag and properly broken bricks that can resist fire. The bricks need to be free from lime sulfate mortar and lime mortar.
- Rounded aggregate
These aggregates have rounded particles and fewer voids, ranging from 32 to 33%. These are the aggregates that provide the minimum ratio of surface area to the volume. They need minimum cement paste to form good concrete, and there is less interlocking of particles as the development of bonds is not suitable for higher-strength concrete and pavements.
Final Words
If you want to use certain aggregates, Penticton to be used for specific road construction, you can contact a reputed pavement contractor. They can construct the best-paved roads in your area and also pave parking lots, streets, and alleys, depending on what you need.
Jason Richardson is the author of this article. For more details about Experienced Paving Professionals in Okanagan please visit our website: mackinleyclarkpaving.com
