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"Varnish is a homogeneous colloidal dispersion-solution of natural or synthetic resins in oil or thinner or both".
A stair may be defined as series of steps suitably arranged for the purpose of connecting different floors of a building.
A trap is bent or depressed sanitary fitting which remains full of water. It is used prevent the passage of foul air or gases through it.
Settlement is the vertical downward movement of the loaded base. As a result of this the original depth of soil mass decreases.
Admixture are the materials used in the cement to modify one or more of its properties in the plastic or hardened state of concrete.
Folds when crustal rocks are subjected to stress over a period of time, they compress and form folds.
Shrinkage is the decrease in volume of concrete in the absence of load with time. In the plastic stage concrete shrinks in volume due to absorption of water or loss of water.
Canal lining is the impervious layer which protects the bed and sides of the canal. Lining is generally a construction of a thin 2.5 to 15 cm thick layer of lining material, generally RCC or CC bricks, stones etc.
Shoring is a temporary structure to support temporarily an unsafe structure. Shoring is provided to a structure under following circumstances.
A trap is bent or depressed sanitary fitting which remains full of water. It is used prevent the passage of foul air or gases through it.
Gypsum is one of the important and extensively used as a building material which contains 79.1% of calcium sulphate and 20.9% water.
Piezometer is a instrument which measures the pore water pressure in a soil medium. It can be installed within structure of dam.
Polymers is a large molecule composed of repeating structural units. There are two types of polymers namely Natural and Synthetic.
"Caissons" means box. Such box can be prefabricated on shore and then floated to the desired site, and is allowed to seat on prepared base.
Evaporation: In this process due to solar radiation, during the day time the water in the liquid form is transformed into gaseous form.
There are mainly three types of surveys which are as follows: Reconnaissance survey, Detailed survey, Preliminary survey etc.
Glass is an inorganic product of fusion of one or more oxides of silicon, boron, magnesium, calcium, sodium etc.