Assuming a height of 4 inches.

The perimeter is 50 feet by 80 feet but there is 33 feet by 14'6" that will not have a german floor on it right in the center.

I want to know how many tons of granite, sharp sand or stone dust (undecided yet) and cement I will need. I will be using a concrete mixer (would love to hire KolaShangs mixer but only if it will come with a specific Engineer to make sure that we don't break it ).

Thanks.

itstpia8:
https://www.nairaland.com/356429/cost-raft-foundation-german-floor

http://www.flooringcalc.com/

Thanks but none of these were helpful.

ok, you should google it then.

itstpia8:
ok, you should google it then.

Thanks but no interest in Google.

My interest is getting assisted by Nairalanders.

the first link I posted was from nairalanders and someone even left information on getting practical assistance with the same, from his firm.

did you contact him using the info he posted?

itstpia8:
the first link I posted was from nairalanders and someone even left information on getting practical assistance with the same, from his firm.

did you contact him using the info he posted?

Like I said, none of the links you posted was of any use to me. I have no interest in contacting any firm.

Again, thanks for the interest but I'll wait for those that can assist.

ok.

20 tons of 3/4 down granite, 15 tons of stone dust, and 146 bags of cement.

FastShipping:
20 tons of 3/4 down granite, 15 tons of stone dust, and 146 bags of cement.

Thanks.

Could you also learn me this calculation for future reference?

@FastShipping, cement too much. Stone dust no go reach. Granite is fine (assuming full quantity is delivered)

cc: EgunMogaji

brabus:
@FastShipping, cement too much. Stone dust no go reach. Granite is fine (assuming full quantity is delivered)

cc: EgunMogaji

My house and his are almost the same square feet in size. Mine is approximately 4000 square feet and I bought 30 tons granite and 20 tons stone dust with 154 bags of cement. I still have about 10 tons of granite left and all stone dust used up. My concrete floor was 5 inches thick. His is going to be 4 inches thick.

brabus:
@FastShipping, cement too much. Stone dust no go reach. Granite is fine (assuming full quantity is delivered)

cc: EgunMogaji

Brabus, what are your calculations and can you be bothered to teach me how to calculate this?

Thanks.

EgunMogaji:


Brabus, what are your calculations and can you be bothered to teach me how to calculate this?

Thanks.

Use this formula:

1:6:3 covers 27 square feet.

FastShipping:


Use this formula:

1:6:3 covers 27 square feet.

Thanks man.

Granite:Cement:Sand?

EgunMogaji:


Thanks man.

Granite:Cement:Sand?

Cement: Granite: Stone Dust

EgunMogaji:


Brabus, what are your calculations and can you be bothered to teach me how to calculate this?

Thanks.

Oga, I'll do the calculations later. Need to prepare for church service now. I've finished typing and everything disappeared when I wanted to click the submit button.

100 bags will be enough for this and the ratio for mix will 1:5:5. So it will have a good paste since it's german

Estimating material requirement for the DPC @Sir EgunMogaji site.

I'm more comfortable using metres than feet. So, let's convert the building into metres.

Overall area of the building footprint
50' x 80' or 15m x 24m = 360m²

Overall area of the building footprint less the Courtyard
360m² (Footprint) - 45m² (Courtyard) = 315m²

Volume of Concrete required for the oversite
315m² x 100mm (4in thickness) = 31.5m³

Assuming we are using 1:2:4 mix ratio

Constant
1 bag of Cement = 0.035m³ (the formula for this is One portland cement is 1440kg/m³, so a 50 kg of cement is equal to 0.034472m³ )

1m³ Sharp Sand (dry fine sand) = 1.53 tons

1m³ Granite = 1.53 tons.

___________
Quantity of Cement required

For a 1:2:4 cement mixture, divide the volume (in this case 31.5m³) by 7 to get the resulting number of 4.5m³ of cement required for the project.

Therefore 4.5m³ / 0.035 = 128 bags of 50kg cement.

____________
Quantity of Sand required

For a 1:2:4 mix, divide the volume (in this case 31.5m³ by 7 to get 4.5m³ and multiply by 2 (which is the ratio of sand) to get 9m³ which is the quantity of sand required for the project.

To get tonnage, divide 9m³ by 0.654 which gives about 15tons. Allow for shortage, wastages while transporting/transferring sand and those sand that will be stucked in the mixer. Buy 20 full tons.

_____________
Quantity of Granite required

For a 1:2:4 mix, divide the volume (in this case 31.5m³ by 7 to get 4.5m³ and multiply by 4 (which is the ratio of sand) to get 18m³ which is the quantity of granite required for the project.

To get tonnage, divide 18m³ by 0.654 which gives about 28tons of granite. Buy 30 tons!


________
Oga, Abeg no ask me how I got this figures o! Head nearly blow to work this out. With 1:3:6, you'll use less quantity of cement (90 bags or thereabout). The same quantity of sand/granite should work.

Thanks Brabus and Fast Shipping.

This is were folks like Abdulwastecx and H$lbroker will come in. Alright guys, help a brother in need. That Abdulwastecx guy has a template I think and I know that beyond roofing H$lbroker does some of that kinda stuff.

brabus:
Estimating material requirement for the DPC @Sir EgunMogaji site.

I'm more comfortable using metres than feet. So, let's convert the building into metres.

Overall area of the building footprint
50' x 80' or 15m x 24m = 360m²

Overall area of the building footprint less the Courtyard
360m² (Footprint) - 45m² (Courtyard) = 315m²

Volume of Concrete required for the oversite
315m² x 100mm (4in thickness) = 31.5m³

Assuming we are using 1:2:4 mix ratio



___________
Quantity of Cement required

For a 1:2:4 cement mixture, divide the volume (in this case 31.5m³) by 7 to get the resulting number of 4.5m³ of cement required for the project.

Therefore 4.5m³ / 0.035 = 128 bags of 50kg cement.

____________
Quantity of Sand required

For a 1:2:4 mix, divide the volume (in this case 31.5m³ by 7 to get 4.5m³ and multiply by 2 (which is the ratio of sand) to get 9m³ which is the quantity of sand required for the project.

To get tonnage, divide 9m³ by 0.654 which gives about 15tons. Allow for shortage, wastages while transporting/transferring sand and those sand that will be stucked in the mixer. Buy 20 full tons.

_____________
Quantity of Granite required

For a 1:2:4 mix, divide the volume (in this case 31.5m³ by 7 to get 4.5m³ and multiply by 4 (which is the ratio of sand) to get 18m³ which is the quantity of granite required for the project.

To get tonnage, divide 18m³ by 0.654 which gives about 28tons of granite. Buy 30 tons!


________
Oga, Abeg no ask me how I got this figures o! Head nearly blow to work this out. With 1:3:6, you'll use less quantity of cement (90 bags or thereabout). The same quantity of sand/granite should work.

Definitely course material.

FastShipping:


My house and his are almost the same square feet in size. Mine is approximately 4000 square feet and I bought 30 tons granite and 20 tons stone dust with 154 bags of cement. I still have about 10 tons of granite left and all stone dust used up. My concrete floor was 5 inches thick. His is going to be 4 inches thick.

Fast, how much was your labour?

Interested in hearing of a potential labour cost from others too.

Thanks.

EgunMogaji:


Fast, how much was your labour?

Interested in hearing of a potential labour cost from others too.

Thanks.

I believe I paid 55k.

FastShipping:


I believe I paid 55k.

Nice. Excluding cost of mixer right or you did manual mixing.

Thanks.

EgunMogaji:


Nice. Excluding cost of mixer right or you did manual mixing.

Thanks.

No mixer.

FastShipping:


No mixer.

Okay, thanks a lot. You've been extremely helpful.

So here's the quote that I had and which prompted this:

Granite 60 tons
Sand 70 tons
Cement 150 bags
Workmanship N150,000

Dearisgoduooooo, talk about "Ere Aje Pajude"

EgunMogaji:


Okay, thanks a lot. You've been extremely helpful.

So here's the quote that I had and which prompted this:

Granite 60 tons
Sand 70 tons
Cement 150 bags
Workmanship N150,000

Dearisgoduooooo, talk about "Ere Age Pajude"

Ahhhhhhhhhhhhhhhhh!!!!!!!!!!!!!

The Americana man must be rich so let's take what we can quickly take from him.

In fact, I didn't put into account the space in the middle of your project where there won't be concrete. The cement you need should not exceed 120 bags.

@EgunMogaji hahahaha.. The Engineer won't mind coming If you pay visiting fee.. Just 100dollars only

EgunMogaji:


Okay, thanks a lot. You've been extremely helpful.

So here's the quote that I had and which prompted this:

Granite 60 tons
Sand 70 tons
Cement 150 bags
Workmanship N150,000

Dearisgoduooooo, talk about "Ere Aje Pajude"

Abeg any info on the current workmanship cost for German floor?

sigmundfreud:
Abeg any info on the current workmanship cost for German floor?

Unfortunately no.

EgunMogaji:


Like I said, none of the links you posted was of any use to me. I have no interest in contacting any firm.

Again, thanks for the interest but I'll wait for those that can assist.

Assist! Assist! Assist!...

Haba...some people actually went to school to study all this. Its like telling a Mechanic to assist you in fixing your car engine. Indirectly, we'll be killing this profession. Why not pay for the service of a Quantity Surveyor.


Meanwhile, for someone to assist you.. you'll need to provide the grade of the concrete.