WBM Road Construction Procedure Construction of water bound macadam road involves the following 6 basic steps as given below. Preparation of sub-grade Preparation of sub-base Preparation of base Preparation of wearing course Preparation of shoulders Opening to traffic Step – 1 (Construction of Sub-grade) Sub-grade act as a cushion for other layers i.e. In order … Read more
Requirements of Good Stairs A good stair should provide an easy, quick and safe mode of communication between the various floors of the building. General requirements of good stairs are as mentioned below. 1. Location It should preferably be located centrally, ensuring sufficient light and ventilation. 2. Width of Stair The width of stairs for … Read more
Different Classes of Urban Roads The urban road are classified as under Express way Arterial streets Sub-arterial streets Collector streets Local streets 1. Expressways The city roads which are reserved for motor traffic with full or partial control access and are provided with grade separation at intersections are called expressways. These are generally constructed to … Read more
Principle for Supervision of Stone Masonry The following principles should be followed during construction of stone masonry: The stone used in masonry should be durable and strong. All stones should be well watered before laying to avoid absorption of moisture from mortar. All stones should be properly dressed. The stones should be laid on their … Read more
WATER BOUND MACADAM The concept of water bound macadam road was suggested by John Macadam, who was a Scottish engineer. The road whose wearing course consists of clean crushed aggregates, mechanically interlocked by rolling and bound together with filler material and water laid on a well compacted base course, is called water bound macadam (W.B.M) … Read more
Harmful Effects of Dampness Dampness is the presence of hygroscopic or gravitational moisture. Dampness gives rise to unhygienic conditions apart from reduction in strength of structural components of the building. Dampness causes the following harmful effects. Dampness is responsible for breeding of mosquitoes and creates unhealthy living conditions. Due to dampness, moisture travel through walls … Read more
Precast Concrete Piles – Advantages & Disadvantages Precast concrete piles are cast, cured and stored in a yard before they are installed in the field mostly by driving. Advantages of Precast Concrete Piles Reinforcement used in the pile is not liable to change its place or get disturbed The defects in pile can be easily … Read more
Different Ways To Clean Clay Paved Surface Clay paving provides a durable, hardwearing surface but, like any surfacing material, this may suffer from time to time from staining, due to general trafficking and contamination from other sources. Due to the nature of construction, there may also be some vegetation growing in the joints, or on … Read more
Quality Assurance for Cement Plastering Plastering is a process of applying one or more coats of mortar to a concrete surface, brickwork, stone masonry or lathing. It must be durable such that it resists the penetration of moisture and should be able to weather uniformly. It should also be pleasing in appearance. These properties depend … Read more
Basic Components of a Building A building consists of following basic components. 1. Foundation A foundation is necessary to evenly distribute the entire building load on the soil in such a manner that no damaging settlements take place. Hence, the foundations need to be constructed on good/solid ground. 2. Plinth A plinth is normally constructed … Read more