Concrete Cost
Concrete Cost
(OP)
Does anyone have a cost differential for sulphate resistant concrete? We have two types HS and HSb; the HS uses Type 5 or Type 50 Cement and the HSb uses regular Type 1 or Type 10 Cement and approx 25% suitable fly ash. Concrete strength is 35 MPa and there are about 20,000 cubic metres involved.
Dik
Dik






RE: Concrete Cost
RE: Concrete Cost
RE: Concrete Cost
Just going over costs of cementitious materials per 1000 lb and it appears that there is a savings of about $10-$15 per cubic metre. Calls to local contractors indicate that the cost differential is approximately $15 to $25 per cubic metre. Since the concrete volume is approximately 21,000 cubic metres, we are looking at big pocket change.
Any cost information would be appreciated.
Dik
RE: Concrete Cost
By going to a contractor, you will not get prices affected by the delivery (which can be major) and unloading/pumping. He usually quotes base on a variable history of jobs.
Depending on the type of project, schedule and location, an on-site plant will minimize the effects of delivery and material handling. Its one thing if you are dumping large amounts of concrete quickly on a short schedule, but if it is a longer term job near any plant, with smaller pours, a site plant is out of the question.
In some areas, there are different relationships between material costs and delivery costs of aggregate, cement and concrete. As a friend of mine said just before he sold his aggregate/ready mix business for $78,000,000, "The concrete industry is the most expensive way to sell aggregate that there is".
To get the material cost of the batch, talk to the only source with the accurate material costs. The price from different R/M suppliers could be influenced by individual plant facilities (# of silos, capacity, etc.), so talk to several suppliers.
RE: Concrete Cost
Dik
RE: Concrete Cost
If you are building in a small market area, 20,000 cubic meters should get a supplier's attention.
If you are in a large market and the duration is unknown, it is not that much in the big picture. We have a supplier doing well over 1,000,000 yards per year with several close behind (seasonal market location).
Concrete is a commodity business if the producer has the facilities and controls.
RE: Concrete Cost
Dik