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Get an overview to learn the Basics of properties of cement and know how the carbon dioxide is being removed                          ABSTRACT Concrete is the most widely used building material in the world because of its beauty, strength, and  durability, among other benefits. Concrete is used in nearly every type of construction, including  homes, buildings, roads, bridges, airports, and subways. And in an era of increased attention to the  environmental impact of construction, concrete performs well when compared to other building  materials. As with any building product, the production of concrete and its ingredients does require energy  that in turn results in the generation of carbon dioxide, or CO2. The amount of CO2 produced during  manufacturing and the net impact of using concrete as a building material is relatively small. The  following features of concrete construction help minimize its carbon footprint. Atmospheric concentrations of CO2 are expressed in units of parts per

!!Find your way to know the Harbor  basic concept like Breakwater which play a crucial role in that system!! Basic Definations Breakwater→ The protective barrier construct to enclosed harbors and to keep the harbor water undisturbed by effect of heavy and strong seas called Breakwater.It is mainly used for safe Anchorage for ships and also to facilitate loading of cargo Trestle→ They are lighter peir design to withstand vertical loads as principal forces.In location where trestle not subjected to earthquake forces and height above firm bottom is less than 8m batter pile are omitted.In shallower water trestles constructed by overhead method. Mole→ Inner side of break water is constructed for Quay for cargo handling and so known as Mole.Mole found economical than trestles when water depth less than 3m.In no case mole height exceed 8m.The top of mole should not be 4m to 5m more above low water Wall acting as a breakwater Classification of Breakwater:- Breakwater are mainly classified int

Bringing a Super 20 MCQ on Harbor Docks which is frequently asked in Exam 1. The difference in height between highest high water and lowest low water is called : A. Mean range B. Maximum range C. Maximum rise D. Mean rise 2. If the maximum spring rise is 2m and height of the waves expected is 4m, then the breakwater height above the datum will be : A. 2.5m B. 4m C. 5m D. 7m 3. If H is the height of the wave expected, then the height of the breakwater is generally taken as  A. 1.2 H to 1.25 H above the datum B. 1.2 H to 1.25 H above the low water level C. 1.2 H to 1.25 H above the high water level D. 1.2 H ti 1.25 H above the mean sea level 4. In multiple point mooring system, vessel is secured to minimum of : A. Two points B. Four points C. Six points D. Eight points 5. Consider a pair of lock gates having a rise n, width of lock B and length of each gate L. If w is the unit pressure of water per unit length of gate, then the compressive force on the gate is given by : A. wLS/n B. wLS

Taking a View Towards the Questionnaire Parts of  Tunnel Engineering 1)Which one of the following statements is not correct in respect of setting of an inclined tunnel: A. Reference points are constructed at every 300 m. B. The alignment is fixed from upper/lower apex point. C. The level of the invert at the heading is marked by a tape. D.Reference points are constructed on the roof of tunnels E.None the above. 2)Forepoling method is generally adopted for tunnelling in A.soft ground B.firm ground C.running ground D.None of these. 3)Concrete lining is provided concurrently with the driving operation in case of A.rock terrain B.soft rock C.running soil D.none of these. 4)The concentration of the dust particles of the size 0.5 to 5 microns adjacent to the working face should not be more than A.200 particles/cm3 B.250 particles/cm3 C.300 particles/cm3 D.450 particles/cm3 E.400 particles/cm3 5)Which one of the following statements is not correct with regard to heading and hench-ing method o

Get a  questionnaire  ride in a minutes.It will provide you a better way to study,learn and succeed All question on Harbor Docks  are asked in previous exams and here they are provided to get a access to it to apply it in your exam 1. When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as  A. Beam B. Depth C. Freeboard D. Draft 2. The maximum harbour depth below lowest low water is generally equal to i. Loaded draft + 1.2m when bottom is rock ii. Loaded draft + 1.8m when bottom is soft iii. Loaded draft + 1.2m when bottom is soft iv. Loaded draft + 1.8m when bottom is rock Of these statements : A. i and ii are correct B. i and iii are correct C. ii and iv are correct D. iii and iv are correct 3. The minimum diameter of the turning besin, where ships turn by going ahead and without tug assistance should be  A. L B. 1.5L C. 2.0L D. 4.0L  Where L is the length of the largest ship to use the port. 4. Dead weight tonnage o

Everywhere words repeats itself But its true meaning Lies in TEXT of Natural Phenomena                                         As in this topic we will study certain natural and meteorological phenomena which affect the design of the harbor and they are as follows: Wind ,wave and their effect on Harbor Tides and tidal range Coastal currents Waves Most powerful forces acting on harbor barriers is produced by joint action of wind and water and gas tremendous power.  Waves are periodic undulations of sea surface. Water waves are generated by transfer of energy from air over the water. It is the most in comprehensive natural phenomenon. Formation of storm waves take place in open sea due to action of wind. Causes of Sea waves : Wind Revolution of earth Gravitational force Earthquake Landslides  Seashore Types of Sea waves: Deep sea waves Shallow sea waves  Oscillatory waves(unbroken waves, travelling in deep water) Translatory waves Capillary waves Surfs(low height & long waves produce