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Pre-tensioning systems
In the previous unit we have seen different steps in a pretensioning operation. Tendon wires or strands (formed as a rope type arrangement made of several tendon wires) are stretched and concrete is cast in the moulds, as shown in Figure. When sufficient strength is gained by concrete due to hardening, tendon wires may be cut from outside and jacks may be removed.
The following test results were obtained for a 100 ml wastewater sample taken at the inlet to wastewater treatment plant. The tests were performed using the standard methods. Dete
Q.- Explain the Unit hydrograph Method for estimation of peak flood discharge in a river. Ans.- Unit hydrograph Method A hydrograph is a representation of hydraulic cha
Distance ABC was measured with a 30m. Chain tested and found to be correct in the beginning of the work .after measuring AB=1.2 km chain was found to be 10 cm. To long chaining was
Methods of Constructing Roads in Marshy Areas: The following methods are adopted for constructing roads in marshy areas: (a) Removal of soft soil and replacement with good
problems
Question During deep excavation , neighbouring ground water table is drawn down that might affect settlement of nearby buildings. What is remedial proposal to rectify situatio
Desirable Properties of Bitumen: For performing as a good binder for road works, bitumen should have the following desirable properties: (a) When heated to the mixing temp
Emulsion: An emulsion is a bituminous binder which is in a fluid form at atmospheric temperatures above O o C and requires no heating at all. Bitumen cab be converted to an e
some information
Q. A pipe or groups of bars be adopted as load carrying element of min-piles? The design of mini-piles someway differs from other traditional pile types. For example the design
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