Main function of the lean concrete is to provide the uniform surface to the foundation concrete and to prevent the direct contact of foundation concrete from the soil.
Lean concrete is used under the foundations.
The Purpos of Lean Concrete is to hold The foundation at certin level and to avoid any sattlement.
a blinding concrete is a thin layer of lean concrete
Lean mix concrete is used for substructures like foundations,piles,etc.,Ready mix concrete is used for superstructures and also for mass construction.Generally, quality of ready mix concrete is good when compared to the lean mix concrete.Workability of lean mix concrete is high when compared to RMC.
A plain concrete with a large ratio aggregate to cement than structural concrete. It is used for filling and not structural duties
Standards normally are 4 inch AA
PCC in construction refers to Plain Cement Concrete, which is used as a preparatory base for laying RCC footing. Though PCC is also concrete, this is lean in nature, the ratio being 1:4:8. The compressive strength achieved with this mix is normally 7.5kN/sq.mm.
a blinding concrete is a thin layer of lean concrete
Lean mix concrete is used for substructures like foundations,piles,etc.,Ready mix concrete is used for superstructures and also for mass construction.Generally, quality of ready mix concrete is good when compared to the lean mix concrete.Workability of lean mix concrete is high when compared to RMC.
Blind Concrete
Dry lean concrete is used as a sub base for structural concrete. It contains much less cement and more sand compared to structural concrete.
A lean mix simply means that there is more liquid that concrete in the mix. The mix is thin and pours easier. It is sometimes used when you need to make a base on an uneven surface, like dirt. You would pour the lean mix, and then use it to put the more solid mix on top of.
yes
I think it is twice the cost of ready mix concrete?
A plain concrete with a large ratio aggregate to cement than structural concrete. It is used for filling and not structural duties
How to mix 4500 psi cement?
Standards normally are 4 inch AA
A lean mix of concrete is a weak mix (ie. Gen 1 or C10 for example). As for how waterproof a lean mix is compaired to a shotcrete mix, it would depent on what mix of shotcrete is used. Generaly speaking, whatever mix of concrete is used if it dose not have a waterproofing agent in it (ie. Sika 1+ Waterproofer for example) it wont be that waterproof. But if you want a staight answer, I would say shotcrete would be more waterproof, only because it tends to be a stronger mix. Regards Colin, a concrete batcher for Tarmac.
lean