The activities involved in the construction of a small building are given below. The price of the work contained in each activity is listed in the table. The contractor undertaking this project would like you to prepare graphs of cumulative expense and income to date against time for activities starting as early as possible. The mark-up is 10% of tender value and retention is 5%. Measurement is made monthly with a payment delay of one month. The retention is paid at the end of the contract. To simplify the calculations, you may assume that all costs must be met by the end of the month in which they are incurred. What is the maximum amount of cash the contractor needs to execute this contract and when does he require this amount?
The activities involved in the construction of a small building are given below. The price of the work contained in each activity is listed in the table. The contractor undertaking this project would like you to prepare graphs of cumulative expense and income to date against time for activities starting as early as possible. The mark-up is 10% of tender value and retention is 5%. Measurement is made monthly with a payment delay of one month. The retention is paid at the end of the contract. To simplify the calculations, you may assume that all costs must be met by the end of the month in which they are incurred. What is the maximum amount of cash the contractor needs to execute this contract and when does he require this amount?
|
No. |
Activity |
Duration (months) |
Predecessors |
Overlap |
Value (LE) |
|
10 20 30 40 50 60 |
Excavation Concrete bases Erect frames Concrete floor slab Fix cladding Install plant |
2 3 1.5 1 1.5 1 |
- 10 20 20 30 40, 50 |
- 1 1 1 1 - |
9000 12000 18000 15000 6000 20000 |
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