### Cement proportions

Concrete is a mixtureof sand gravel cement and water. Concrete used for beams (biga), columns (poste) and slabs have a 1 : 2 : 4 proportion. Thats one part cement, two parts sand and four parts gravel. A bag of cement is about one cubic foot. Add two cubic feet of sand and four cubic feet of gravel to make to make seven cubic feet of concrete. Concrete used for mortar (filling for concrete hollow blocks) will vary from 1 : 2 (class A) to 1 : 4 (class C) cement and sand ratio.

The table below can be used to estimate how much cement , sand and hollow blocks will be needed to build a wall of a given area in square meters. Each square meter requires about 12.5 hollow blocks. Class B is a mixture of sand and cement (mortar) with a 1 is to 3 ratio of cement and sand. Class C has a ratio of 1 part cement per 4 parts sand. This mortar is used as filling for the hollow blocks.

nebenta said...

joeyjarin said...

hi,

At first there is the "rough" stage, what is the ratio of cement and sand?

Then the "puro", again what is the ratio?

And what is the ratio if you try to waterproof it and use "sahara"?

I'm trying to plaster by myself :)

Thanks!

~Joey

Benigno Santos said...

im confused??? what sand is to be used for footin/foundation? S1 sand or white snd?

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reinond gesmundo said...

Magkano po ang presyo ng buhangin na pampalitada per elf truck?

Ilan elf truck ng buhangin sa isang dump truck?
Thank you po

Agcito Aj said...

Hi, how many cubic of sands in 1 dum truck load?

ferdinand roces said...

6 cubic in 1 dump truck.

junN said...

para sa flooring sa labas ng bahay ano ang mixing ratio ng water,cement,gravel,sand?

junN said...

para sa flooring sa labas ng bahay ano ang mixing ratio ng water,cement,gravel,sand?

Mason said...

Para sa slab na four inches thick use 1:2:4 yung tubig depende sa sand kung medyo basa o tuyong tuyo mga kalahating litro ng tubig bawat kilo ng cement

Marry Davis said...

Very well done. Absolutely brilliant information. I'm in love with this blog. they always provide such a great information. plaster sand bags

EDS said...

PLSSSS HELP ME... PANO MIXTURE NG SAHARA CEMENT TO CONCRETE?

EDS said...

PLSSSS HELP ME... PANO MIXTURE NG SAHARA CEMENT TO CONCRETE?