In brief
- A low curing bid usually means the bidder priced placing and finishing, then dropped water cartage, curing labour and the days a slab must stay wet.
- Ask for the curing method statement, the water source and the daily records before comparing bids, not after the pour.
- Price curing as its own measured item so the cheapest bid cannot win by leaving it out.
Contents
Why do concrete curing bids come in low in Qardho?
Concrete curing bids come in low in Qardho because bidders price the pour and leave out the keeping. Water cartage, a person to wet the slab, covers, and the days the concrete must stay damp are the first items dropped when a tender is squeezed. The finished surface still looks flat, so the saving is invisible until cracking starts. Underbidding here is a cost omission, not a discount.
What gets left out of a low curing price?
The omitted items are the ones that do not show in the finished slab. Curing needs a water source on site, a way to get it there, hoses or cans, covers such as plastic sheeting or wet sand, and labour for regular wetting over the curing period, which general practice puts at about seven days for ordinary Portland cement concrete and longer where the specification says so. Confirm the period against the project's specification or engineer.
In a hot, dry inland town, evaporation from a fresh slab can be fast, so the wetting frequency matters more than the total litres. Puntland's Gu and Deyr rains can also interrupt a pour, and rain protection is another item that disappears from a low bid.
A bidder who omits curing is not necessarily careless. If the bill of quantities has no measured line for curing, every bidder faces the same choice, and the one who leaves it out wins on price. Ask the municipal engineer's office what records it expects for a poured slab, and read the bill for a curing item before you compare totals. Walk a recent site and ask the supervisor how often the slab was wetted and who did it.
How does underbid curing show up in the concrete?
It shows first as fine surface cracks and dusting, then as weaker cover over the steel. When water leaves the mix early, the surface shrinks while the core has not, and the paste loses strength. Early surface cracking on a Qardho slab is a signal to check records, not to order a decorative repair.
Detection works from documents, not from looking harder at the slab. Ask for the curing method statement, the name of the person responsible, the water source, and daily wetting records with dates and times. Compare them with the pour date. On site, look for hoses, a tank, covers and a damp surface. A slab that is bone dry two days after the pour tells you the curing line was never priced.
Ask the laboratory that tested the cube samples for its rate, and ask it whether it can run cores if records are missing. Confirm any testing scope against your contract before you rely on it.
What should a client ask before comparing bids?
The client should fix the curing requirement in the tender before bids open, so the cheapest bid cannot win by leaving it out. Write curing as its own line in the bill of quantities, with the method, the water source and the record to be kept. Then ask each bidder to state, in writing, how many days the concrete will stay wet and who will keep it wet.
Check what your contract allows if the work does not match the method statement. Ask the engineer to reject a bid that has no curing line rather than negotiate after award. For the water, ask two suppliers for written quotes and compare them with the allowance in the bill. Confirm the curing duration and any test frequency against the project's specification or engineer.
What to do next
Take the bill of quantities for your Qardho pour and mark every curing item: water, cartage, covers, labour, records and protection from rain. If the bill has no curing line, ask the engineer to add one before bids are compared. Then ask each bidder to price it separately, so you can see the omission in the numbers.
Frequently asked questions
Does a low concrete curing bid always mean the work will fail?
No. It means the bidder has not priced a curing method, so the outcome depends on whether they fund it themselves. Ask for the method statement and the water source before award.
How many days should concrete stay wet in Qardho?
General practice is about seven days for ordinary Portland cement concrete, longer where the specification requires it. Confirm the duration and the test frequency against your project's specification or engineer.
Local reporting: this article is written for building work in Qardho and Puntland. Ground conditions, prices and rules differ between places; confirm the details for your own site.