Different methods of road construction in civil engineering
1) Concrete:
It is a common option for road construction purposes as they are a solid material and can be used for building walls and local roads.
This method is considerably less prone to wear and tear defects like rutting, cracking,
stripping loss of texture, and potholes. This is the main reason for its wide usage.
2) Asphalt:
This method of construction replacing concrete method in these days. They are very
durable, water-resistant and can go more longer then the concrete. The major
advantage of asphalt over concrete is its price. Concrete is very expensive as
compared to asphalt. Moreover, asphalt includes low noise during pavement and it is
easy to handle it for repairing and maintenance. That is why it is widely
accepted and used by the people for the purpose of pavement surfacing.
3) Composite:
This method is widely used for the maintenance, recycling, and rehabilitation of
the roads. The composite material is the combination of both asphalt and concrete
material.
4) Bituminous:
The solvent from the bituminous material will evaporate and the bitumen will bind the
aggregate. It is used in road construction because it is easy to produce, reusable, non-
toxic, and a strong binder.
5) Recycling:
Recycling or repairing of a damaged road surface consists of three different types of
construction methods:
(a)Full depth replacement
(b)Hot or cold prepared road recycling
(c)Rubberizing
These are the different types of road construction.
Slump Test of Concrete-Cone Test Procedure | Workability of Concrete Slump test procedure is to determine the workability of concrete. One of the major problems that you had faced in your field work is concrete compaction during mixing.After mix design, you may have doubt, is this design will be ok? Yes, your design willl be ok in terms of strenght point of view of concrete.But the main problem arises when the mixing of fresh concrete, the compaction of fresh concrete will be very tough.In this situation, you can add some plasticizers without affecting your water-cement ratio or cement-aggregate ratio. Before adding plasticizers or superplasticizers to your fresh concrete, you need to check the workability of your concrete.The slump test is used for checking the workability of concrete.Let us check how can we do slump test of fresh concrete. Apparatus used for cone test procedure 1)Measuring scale 2)Tamping rod 3)Base plate 4)Nonporous base plate 5)Mould for slump test.
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