Learn all about rubber water stops in this comprehensive guide. From their manufacturing process to various types like natural rubber, neoprene, nitrile rubber, and EPDM water stops, understand their applications in preventing water leakage in concrete structures like bridges, dams, tunnels, and more. Get insights on installation techniques for different types of water stops and their role in various construction joints to ensure effective water sealing and absorption of shock.
Tag: Building Engineering
INSULATION MATERIALS
Discover the importance of insulation materials in energy-conscious building design. Learn about thermal conductivity, sound insulation, and the diverse forms of materials available for optimal efficiency. Explore the world of inorganic and organic insulation options to create sustainable, comfortable, and environmentally friendly spaces.
SITE PRELIMINARY WORKS
The work on a site for a low-rise building involves essential preparatory tasks to commence construction. These SITE PRELIMINARY WORKS ensure that everything is in place for the successful execution of the project. Checking Plot Boundaries SITE PRELIMINARY WORKS start with checking the plot boundaries as soon as the site is made available. This involves…
Waste Water Disposal
Objectives of wastewater treatments The traditional aim of wastewater treatment is to enable wastewater to be disposed of safely, without being a danger to public health and without polluting watercourses or causing other nuisances. Recovering energy, nutrients, water, and other valuable resources are other important aims of wastewater treatments. Wastewater is contaminated with a variety…
BAILEY BRIDGE CONSTRUCTIONS
Bailey Bridge is also known as a prefabricated road steel bridge. It was invented by British Engineer Donald Coleman Bailey in 1938. These bridges use high-strength steel as a material and are manufactured into a lightweight standardized bridge unit construction, including beams, longitudinal beams, bridge decks, bridge seats, and connectors. Bailey Bridge is a modular prefabricated…
MODIFICATIONS IN BUILDINGS – UNDERPINNING
The main objective of most underpinning work is to transfer the load carried by a foundation from its existing bearing level to a new level at a lower depth. Underpinning techniques can also be used to replace an existing weak foundation. An underpinning operation may be necessary for one or more of the following reasons:-…
Dewatering in Excavation
Groundwater is water that is held in soil, either in a non-saturated or saturated form. The water table is a line showing the change in water content in the soil, below which soil is saturated with water. Water in soil often acts as a lubricant. It increases the tendency of soil to slip or slide….
EXCAVATION in BUILDING CONSTRUCTION
Introduction Excavation means to loosen and take out materials, leaving space above or below ground. In civil engineering, earthwork includes backfilling with new or original materials to voids, spreading, and leveling over an area. The content of the excavation proposal should include the following information: 1. Detail of method for ground protection treatment and dewatering….
Construction machinery/equipment – Renting vs. Purchasing equipment
The purchase of equipment represents a capital investment by the construction contractor. The contractor has to recover enough money to pay the ownership cost and operating costs of the equipment during its useful life. Together, he must make a profit on the investment. Therefore, any estimate must include the cost of equipment used on the…
Bid Evaluation – Domestic Preference
According to NPA* Guidelines / Sri Lanka Domestic preference is given to local contractors, to encourage the local contractors. Eligibility for Domestic Preference Application of the Preference Domestic Preference Category I – Bids offered by bidders eligible for domestic preference. Category II – Bids offered by others. *NPA – National Procurement Agency.
Decision to tender in construction contract
The decision to tender for a particular contract is mainly the responsibility of the senior management of the contracting firm. There are three possible stages during the estimating and tendering process where this decision must be made. The first is during the pre-selection stage if a pre-selection is carried out. This decision would be based…
The implication of the public procurement system to the economic growth and development of a country
Economists distinguish between growth, by which they mean more of the same – more goods and services; and development, growth with structural and technological change. An important feature of the development is seen when goods and services enter into markets. For example, when people have meals away from home and pay for restaurant services, the restaurant sector grows up…