Rigid pavements, also known as concrete pavements, are commonly used in road construction due to their durability and long service life. However, like any other infrastructure, rigid pavements can experience failures over time. These failures can be attributed to various factors such as design flaws, construction issues, environmental conditions, and...
WBM (Water Bound Macadam) road is a type of road construction method that involves the use of a mixture of stone aggregates and binding material. This road construction technique has been widely used in various parts of the world due to its cost-effectiveness and durability. In this comprehensive answer, we...
• First 20-year road plan is known as the Nagpur road plan (1943-1963). • The second twenty-year road plan is known as the Bombay road plan (1961-1981). • The third road plan is known as the Lucknow road plan (1981-2001). A chief engineer conference was held at Nagpur in 1943...
Road Patterns and Types of Road Patterns Road patterns are the layouts and designs used for roads and highways to ensure safe and efficient traffic flow. There are several types of road patterns, each with its own advantages and disadvantages. In this answer, we will explore the different types of...
The California Bearing Ratio (CBR) method is a widely used test for evaluating the strength and bearing capacity of flexible pavements. It is a measure of the relative strength of a subgrade soil or aggregate base course material compared to that of a standard crushed stone base. The CBR method...
Flexible pavements, also known as asphalt pavements, are widely used in road construction due to their ability to withstand heavy traffic loads and provide a smooth driving surface. However, like any other infrastructure, flexible pavements can experience failures over time. These failures can be attributed to various factors such as...
Macadam roads, also known as macadamized roads, are a type of road construction method that was popularized by Scottish engineer John Loudon McAdam in the early 19th century. This method revolutionized road construction by introducing a new approach to building durable and cost-effective roads. Macadam roads are classified based on...
Advantages and Disadvantages of Flexible Pavement Flexible pavement is a type of road surface that is designed to flex and stretch under traffic loads, providing a comfortable and durable driving surface. It is made up of a series of layers, including a base course, a binder course, and a surface...
Advantages of Rigid Pavements: 1. Durability: Rigid pavements, also known as concrete pavements, are highly durable and can withstand heavy traffic loads for an extended period. They have a longer service life compared to flexible pavements, which require more frequent maintenance and repairs. 2. Strength: Rigid pavements have high flexural strength, meaning they can...
A hydraulic bridge, also known as a movable bridge or a drawbridge, is a type of bridge that can be raised or lowered to allow the passage of water vessels or other forms of transportation. It is designed to provide a temporary opening in a bridge structure, allowing boats, ships,...
1.The term used for major or important roads of a country is Country road Urban road Highway (Ans) None of these 2.A road connecting two towns is called a Country road (Ans) Urban road Highway None of these 3.The portion of a road surface, which is used by vehicular traffic,...
Types of tunnels with detailed explanation:- The Circular section offers greater resistance to external pressure and highly suitable for unstable ground such as sand or soft clay. They are not used as traffic tunnels because they require more filling to make flat base, hence used for carrying water and sewage...
Just read carefully and you will understand :- Dowel bars are inserted and kept fixed at one end and other end in adjacent slab is kept free to expand or contract due to temperature variation by providing a thin coating of bitumen on bars and metallic cap (partly filled with...
Group Index of Soil in Highway construction Group Index(G.I) of soil is used to classify the fine grained soils and for checking their suitability as highway subgrade material. It assigned a particular group to a soil. The quality of a subgrade soil is inversely proportional to G.I., means higher G.I...
Equivalent Single Wheel Load(ESWL) To maintain the maximum wheel load distribution within a specified range and to carry the greater load it is very important to provide dual wheels at both the ends of the rear axles of commercial vehicles. Hence the loading effect of dual wheels is not twice...
