How to calculate quantity of plum concrete ??

[Ihsan Marwat]

How to calculate quantity of plum concrete ??? Please

 

[spradipsaras]

The plum concrete
The plum concrete is defined as a mixture of coarse aggregate and cement that are placed below the foundation or footing of a structure so as to achieve a level surface for equal distribution of load.
The word plum means large stones which are termed as boulders or coarse aggregates if technically speaking.
The plum concrete is actually an economical variation of mass concrete.
The use of plum concrete is preferred if the required thickness of PCC is excessive or large.
This is mainly done below the foundations where due to the steep slope of the strata, the quantity of leveling course could be excessive.
The quantity of plum concrete can be calculated,
Volume of Plum Concrete=Volume of Plain Concrete+volume of Stone boulder added.

 

[Ihsan Marwat]

The plum concrete
The plum concrete is defined as a mixture of coarse aggregate and cement that are placed below the foundation or footing of a structure so as to achieve a level surface for equal distribution of load.
The word plum means large stones which are termed as boulders or coarse aggregates if technically speaking.
The plum concrete is actually an economical variation of mass concrete.
The use of plum concrete is preferred if the required thickness of PCC is excessive or large.
This is mainly done below the foundations where due to the steep slope of the strata, the quantity of leveling course could be excessive.
The quantity of plum concrete can be calculated,
Volume of Plum Concrete=Volume of Plain Concrete+volume of Stone boulder added.

 

[Ihsan Marwat]

Thanks for sharing information regarding plum concrete. But actually I need Seperat volume of concrete and Stones in plum concrete ???

 

[Ihsan Marwat]

I mean how do calculate volume of plum concrete and Stones separately. .?? Let suppose ratio of plum is 40% & 60% ???

 

[amd007]

Thanks for sharing information regarding plum concrete. But actually I need Seperat volume of concrete and Stones in plum concrete ???

Dear Friend,

As you have mentioned plum concrete in a ratio of 60:40 where if you consider concrete as 60% and rubble stone as 40%

Consider an area of 10 sq.mt and say the thickness of the plum layer is about 500 mm then the calculation will be as below:

10 sq.mt x 0.50 = 5.00 cu.mt is the total volume of plum concrete....

Method - 1

Now concrete will be 60% of 5.00 cu.mt = 3.00 cu.mt

and rest will be 40% rubble stone so you will need to order 3.00 cu.m concrete and balance 2.00 cu.m volume will be filled by the rubble stone.

The above calculation will give you a plum concrete of 5.00 cu.m where concrete will consume 3.00 cu.m and rubble stone 2.00 cu.m.

Note: It's very difficult to precisely give the quantity of rubble stone as there is no fixed shape of rubble for us to calculate the quantity, further even if you calculate we generally consider the voids ratio which could range between 20 to 40%.This will vary from source to source of rubble stone.

Method - 2

Another method gives you near about precise calculations were considering the weight of concrete at 2500 kg/cu.m and weight of rubble stone at 2850 kg/cu.m

so in method 1 where the quantity of plum concrete is 5.00 cu.mt

so the concrete will be 3.00 cu.m x 2500 kg=7500 kg of concrete

and rubble stone will be 2.00 cu.m x 2850 kg = 5700 kg of rubble stone

All the above materials need to be weighed using a weighing scale and used accordingly. Please note that materials are weighted by sending the TM or Trucks to the big weighing scales either of site or we can get it done from outside.

Hope that your query is resolved