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Tender documents

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Non-financial details in tender documents 

  • Employers details
  • Contractor details (completed after awarding)
  • Engineer details
  • Project completion time
  • Defect notification period
  • Governing law
  • Ruling language 
  • Language for communications
  • Time for access site
  • normal working hours
  • periods for submission of insurance 
  • Date by which DAB shall be appointed (Dispute Adjudication Boards)

Financial details in tender documents
  • Amount of performance security 
  • Delay damages for work
  • the maximum amount of delay damages
  • percentage for adjustment for provisional sum 
  • adjustment for changes in cost
  • Total advance payement
  • percentage of retention 
  • limit of retention money
  • maximum amount of interim payment certificate
  • currency details
  • maximum amount of deductibles for insurance of the employer's risks
  • minimum amount of third party insurance






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Bridge Diaphragm

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Chamfers for concrete structures

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In general, the edges of concrete members are chamfered. Usually during the process of installing forms for a structural member such as pile cap, a chamfer a PVC chamfer as shown in figure no:1 installed at the edges of the structural members. These chamfers will form smooth slanted edges, as shown in figure no:2. The size of chamfers can be 20x20mm or more as shown on the contract drawing. The PVC chamfer fixed to forms by nails. We should ensure that the PVC chamfer fixed in their correct locations, and we should ensure that the PVC chamfer is straight and not moving up or down. Checking the alignment and location of PVC chamfer is important, so the chamfered concrete edge will have a good appearance after the form’s removal.  Figure 1 Figure 2 Chamfering the concrete edges done for many reasons such as aesthetics, some suggesting that the chamfering of concrete edges done for safety to reduce the damage of objects due to impact with sharp concrete edges. Actually, ...
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Tunnel lining systems-Ribbed system

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shear key

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stress-strain diagram for aluminium alloy and rubber

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Flakiness Index and Elongation Index of Coarse Aggregates

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Repairing of concrete bulging

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