Though construction sites are a great place to work, construction workers face several hazards during their day-to-day work like equipment danger and accidents. Basic Construction Equipment Safety Standards & Major Construction Hazards According to the Occupational Safety & Health Administration (OSHA), some of the major hazards associated with construction equipments/sites are: ○ Falls: This is the major…
Ramps are of great importance in any high-rise building. Ramps provide safe access to the building for heavy materials such as heavy machineries. In many countries the construction of a ramp in a building is made compulsory by law abiding bodies to provide safe and convenient access to people with disabilities as by the help…
Properties Of Aggregates Approximately 75% of the volume of concrete is occupied by aggregates, so quality of aggregates plays an important role in determining properties of concrete. Aggregates are chemically inert, solid bodies held together by the cement. Aggregates come in various shapes, sizes, and materials ranging from fine particles of sand to large, coarse…
Concrete, in construction, structural material consisting of a hard, chemically inert particulate substance, known as aggregate (usually sand and gravel), that is bonded together by cement and water. concrete Among the ancient Assyrians and Babylonians, the bonding substance most often used was clay. The Egyptians developed a substance more closely resembling modern concrete by using lime and gypsum as binders. Lime (calcium oxide), derived from limestone, chalk, or (where…
Membrane filtration is considered very efficient and is often used in addition to slow sand filtration and other methods to ensure the quality of drinking water. A filter is a porous barrier that allows water to pass through it. The efficiency of a filter depends on the size of the pores, which in turn is…
Problem Determine the resultant force and its direction on the gate shown: Solution The horizontal force, per metre run of the gate, is that of the surface projected onto a vertical plane of length CB: measured anticlockwise to the horizontal. The resultant passes through point C. Also, as the force on each infinitesimal length of…
For the theoretical analysis of groundwater flow several computational methods are available, analytical or numerical. Studying groundwater flow is of great importance for soil mechanics problems, because the influence of the groundwater on the behaviour of a soil structure is very large. Many dramatic accidents have been caused by higher pore water pressures than expected….
Principle of planning involves planning for meeting the following requirements also: 1. Sanitary convenience 2. Prospects 3. Elegance 4. Flexibility 5. Privacy 6. Resistance to fire 7. Sound insulation 8. Protection from termite 9. Security against burglary 10. Economy 11. Provisions for future alterations. 1. Sanitary Convenience: Sanitary conveniences include provision of bathrooms, lavatories,urinals etc. Provision of these…
Pollution is derived from Latin word ‘polluere’ which means ‘to contaminate’ any feature of environment. Pollution is the effect of undesirable changes in our surroundings that have harmful effects on plants, animals and human beings. This occurs only when short term economic gains are made at the cost of long term ecological benefits of humanity….
The glass may be broadly classified as: 1. Soda-lime glass 2. Potash lime glass 3. Potash lead glass 4. Common glass and 5. Special glasses. 1. Soda Lime Glass: It is mainly a mixture of sodium silicate and calcium silicate. It is fusible at low temperature. In the fusion condition it can be blown or…