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QuestionGeneral requirement for Civil Engineering Works in 1992 Edition, Clause 15.09 details that tying wires for strengthening adjacent to and above Class F4 and F5 closes must be stainless steel wires. Give genuine reasons? AnswerIf plain steel tying wires are utilize for reinforcement adjacent to Class F4 and F5 closes, it poses problem of rust staining that may impair appearance of uncovered concrete surfaces. Speed of corrosion of plain steel tying wires is alike to regular steel reinforcement. Yet, for tying wires with extremely tiny diameter, upon long exposure it stands a high possibility of rusting finally and this rust will stain formwork and significantly involve concrete finish. Then, stainless steel tying wires are specified for locations in vicinity of high excellence of finishes to keep away from rust staining by corroded typing wires.
Why hoisting and conveying equipment is very important in civil engineering?
The thiclcness of the normally consolidated soft clay layer is 6 m. The natural water content is 31 percent. The specific gravity of the soil being 2.68 with a liquid limit of 4
Define Unit Hydrograph UNIT HYDROGRAPH: The hydrograph developed for a drainage basin (watershed) from the runoff of a 1 in or 1 cm storm. It is the base hydrograph from which
Using Laplace transfom, the following differential equation d y dy dt reduces to the algebraic equation of the form Resolve y(s) into partial fractions
What are the problems in under water concreting?
Define Contaminants - underwater inspection of bridge? There are various substances that may be inadvertently incorporated into the concrete matrix (e.g. glass, coal, gypsum),
Question While pipe jacking or microtunneling , it is usually accepted that cover depths of jacking pipes cannot be also shallow as in less than 2D where D is the diameter o
Total Dynamic Head: (TDH) y-axis plot point related to each x-axis flow rate along the system curve plot. TDH = h a = TSH + h f + v 2 /2g v 2 / 2g usually small
moment
Pavement Drainage: Water enters the pavement layers through cracks, joints and open spaces in the pavement surface. The water reaches the soil sub-grade on which the pavement
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