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Lab Report sample - Engineering and Construction Assignment
Engineering and Construction
Pages 3 (753 words)
1. The type R signifies that the bar used for the link is the Plain Round Bar of Grade 250. The latest British Standards dictate other types which are R type for Ribbed bars of Grade 500 and S for Stainless steel. 2. The cover is provided so that the interaction of the steel with the environment can be reduced and to protect the steel reinforcement from corrosion and rusting…
3. 25 H 20 -6-200 B1 is the bar call up code, in this 25 is the bar no, H is the bar type/Class, 20 is the bar diameter, 6 is the earmark on the respective drawing, 200 is the spacing between the bars in mm and lastly B1 is the suffix. 4. The basic philosophy behind the bar shapes is to standardize the bending and shape process, this is done for several reasons, firstly this is done so that the reader or the working person should know what are the angles between the shapes, then what is the total length of the bar as we are well aware that the bending will cause a change in length that is reduced in the bend. Then the designer does so to facilitate the workers and the contractor, because a unusual shape might be very difficult to fabricate and will require additional cost and time. 5. There are several ways to maintain the clear cover in concrete; this normally depends on the type of component we are concreting. The spacer plates/ bars are attached to the reinforcement in between the shuttering and steel. Then another spacer way is to provide the spacer chairs, and lift the mesh of the reinforcement to a desirable height. Another way is to provide plastic sheeting and metal tip spacer chairs. 6. ...
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