Concrete Roads: PQC, Methods of Construction and How it is Made! Introduction to Concrete Roads: Concrete roads fall under the category of high quality/superior type of roads built with cement concrete. These pavements may or may not be provided with sub-base/base courses, and they may be constructed directly over a well-compacted soil subgrade. They derive their strength to support the [...]
In this article we will discuss about how to stabilise soil for road construction. Learn about:- 1. Mechanical Stabilization 2. Stabilisation with Additives. 1. Mechanical Stabilization: Rearrangement of the soil grains and densification by compaction is the first approach. The other approach consists of blending two or more available soils to obtain the desired gradation of soil particles for the [...]
Highway Drainage: Need and Types of Highway Drainage System! Highway drainage consists of removing or controlling surface water and subsurface water away from the road surface and the subgrade supporting it. Part of the rain water flows on the ground or road surface, while the other part percolates into the ground and reaches the ground water table, raising its level. [...]
In this article we will discuss about:- 1. Alignment of Hill Roads 2. Geometric Design Aspects of Hill Roads 3. Maintenance Aspects. Alignment of Hill Roads: 1. Administrative, developmental and strategic needs would determine the obligatory points to be connected by a hill road. Control points would be governed by saddles, passes, river crossings, and other natural features such as [...]
Highway Lighting or Roadway Lighting [Standard Codes]. Highway lighting consists of providing illumination through lights in the vicinity of a highway/road/street. It plays a major part in ensuring of highway safety during night driving and includes the aspect of roadside amenities for the convenience of the road-users, and preserving the aesthetics of the highway and its vicinity during the nights. [...]