Muyi002:
Please I have three questions, please what quantity of sand, cement and granite/gravel stones will be required
1. To make a pillar that will be between block joining
2. To make lintel on 9 inch block
3. No of cement to lay 100 blocks

No1: 2 pillars of 225 by 255 = 3 bags of cement

No2: Lintel of what size and length? but cement needed is about 1/4 bag

No3: 100 blocks = 2 bags BUT the more the blocks, the less the cement. i.e. 200 bags = 3.5 bags NOT 4 bags etc...

all are approximate and without waste.

Goodluck

saydfact:


Thanks sir,

Sincerely i'm not an expert in block making, its formula or mix - whatever info I give on that wld be googled...... I wld try expanding my knowledge that way soon...

It's safer to make 28 blocks out of a mix then the molders will do the ratio for you.

oguguopenny:


It's safer to make 28 blocks out of a mix then the molders will do the ratio for you.

thanks for the contribution..... that wld be 9 inches block

and about 50 for 6 inches block

saydfact:


200m2 is a lot of SqM - Well thats 135 bags if properly mixed or less if not.

Regards

Hello my friend,
Good morning.

I have found this your old topic very educating BUT I STILL NEED A LITTLE GUIDANCE.

Please I need your contribution on the exact mix for a 16ftX13ft one bedroom self contain structure decking (am sorry am not good with numbers and sqm).
We intend to put two tanks untop of the structure when completed, so I want a solid mixture because its manual mixing since its a small project.

Do you still use your 1: 3: 3 mix? If yes? How many bags exactly will cover this decking at a thickness of 6".

I await your Swift response.

tonididdy:


Hello my friend,
Good morning.

I have found this your old topic very educating BUT I STILL NEED A LITTLE GUIDANCE.

Please I need your contribution on the exact mix for a 16ftX13ft one bedroom self contain structure decking (am sorry am not good with numbers and sqm).
We intend to put two tanks untop of the structure when completed, so I want a solid mixture because its manual mixing since its a small project.

Do you still use your 1: 3: 3 mix? If yes? How many bags exactly will cover this decking at a thickness of 6".

I await your Swift response.

Morning, thanks for following my thread - pls send me a Whatsapp message using the link in my signature.....

Don't worry - My consultation is free...

.

saydfact:


No1: 2 pillars of 225 by 255 = 3 bags of cement

No2: Lintel of what size and length? but cement needed is about 1/4 bag

No3: 100 blocks = 2 bags BUT the more the blocks, the less the cement. i.e. 200 bags = 3.5 bags NOT 4 bags etc...

all are approximate and without waste.

Goodluck

Hello,

Thank you for the educative information you provide in all your post.
I have been reading your post for awhile but only just signed up today.

Could you please help with the materials needed for plastering inside fence of a plot land measuring 18.00m by 30.00m @ 11 coaches

Many thanks

Good morning

Could you please help calculate the materials needed for plastering inside fence of a plot land measuring 18.00m by 30.00m @ 11 coaches

Just the inside please. Thank you

Jopeters:
Good morning

Could you please help calculate the materials needed for plastering inside fence of a plot land measuring 18.00m by 30.00m @ 11 coaches

Just the inside please. Thank you

using ratio 1:7
Cement = 15 bags
Sand = 6 tonne

This quantity is dependent on Mix Ratio or You could give me your workers Mix Ratio for more accurate quantities..

Goodluck

saydfact:


using ratio 1:7
Cement = 15 bags
Sand = 6 tonne

This quantity is dependent on Mix Ratio or You could give me your workers Mix Ratio for more accurate quantities..

Goodluck

Thanks for your response.
The ratio is 1:5

Tjutt:


Thanks for your response.
The ratio is 1:5

Ratio 1:5
Cement = 19.5 bags
Sand = 6 tonnes

Goodluck

saydfact:


Ratio 1:5
Cement = 19.5 bags
Sand = 6 tonnes

Goodluck

Thank you

the red stones are called sandstones and the Gray stones normally used for road construction are called gravel. correction. according to Wikipedia

the brown stones are called sandstones while the Grey stones are called crushed stones. a mixture of grey stones and grey sand is called gravel.

lexho:
the brown stones are called sandstones while the Grey stones are called crushed stones. a mixture of grey stones and grey sand is called gravel.

As in? What are you saying? this is total mislead.

montana1965:
Thanks for sharing. I want to do concrete bathroom. I think it will look quite modern and unusual cause concrete look has become a real trend in recent years. As my friend said me, I can use cocrete paint. The ready-to-use concrete paint is a do-it-yourself product that can be applied directly from the bucket to practically any surface. This gives me opportunity to create my own concrete look in interior. with this paint, I want to refreshed the walls in the bath. I think it'll look amazing!

It shd.. However because it's a bathroom, you shd consider that the surface wld always be exposed to water, moisture and heat.... Wld it sustain and last the time?

I'm asking sir.. We all are learning

montana1965:
Thanks for sharing. I want to do concrete bathroom. I think it will look quite modern and unusual cause concrete look has become a real trend in recent years. As my friend said me, I can use cocrete paint. The ready-to-use concrete paint is a do-it-yourself product that can be applied directly from the bucket to practically any surface. This gives me opportunity to create my own concrete look in interior. with this paint, I want to refreshed the walls in the bath. I think it'll look amazing!

I used concrete paint when I was doing repairs in the kitchen. Everything looks really cool, but do not forget to sand the surface well before applying the paint.

I absolutely agree with this! We also emphasize the importance of quality concrete mix for aesthetic and quality purposes.

Tyler from Encinitas Pro Concrete Co | https://www.encinitasconcrete.com

What is ratio for a mixing of pillar and beams with a 3/4down of granites stone?
Please I urgently need your response
Thanks

Jibowskyy:
What is ratio for a mixing of pillar and beams with a 3/4down of granites stone?
Please I urgently need your response
Thanks

1:3:3

Jibowskyy:
What is ratio for a mixing of pillar and beams with a 3/4down of granites stone?
Please I urgently need your response
Thanks

sorry - i've been away for a while - how did the casting go?

saydfact:
Good Day:
Lets explain concrete mix and how your bricklayer is expected to mix your next foundation / decking.

Most time as Non-Construction experienced house builders, we put our trust on the bricklayers to mix our concrete rightly, however very few of them can be trusted to do the right thing - If your bricklayer negotiated for material and labour (its even more difficult to trust him) because he might be maximizing gain and reducing materials; often times even when you buy your materials; they tend to put in excess sand, granite ratio to minimize time spent in doing the job.

LETS DISCUSS THE BASIC RATIOS AND WHAT IS EXPECTED OF THEM.

We'll start by explaining what the ratio 1:2:4, 1:3:6 etc. means - What this means is the Cement, Fine aggregate and Coarse aggregate ratio. Where fine aggregate could be Sharp Sand or Stone dust and Coarse aggregate could be granite, gravel or stone-base (for certain project types).

1:2:4 therefore means, 1 part of cement : 2 part of fine aggregate : 4 part of coarse aggregate. This 'part' as used refers to volume. It means If I have 1 head-pan of cement, I'll need 2 head-pan of sharp sand and 4 head-pans of granite / gravel or 1 cup of cement, 2 cups and 4 cups respectively of sand and stone.

The above is the theory of the mixture.... but practically on site; their might be need to modify a bit.

Comparing Granite and Gravel:

Granite are basically rocks blasted and keep 'neat' while gravel are rocks that come with a lot of 'dirt' i.e sand. (in my terms) - It means if I have 2 head-pans of granite; I have 2 head-pans of granite but in the case of gravel, if I have 2 head-pans of gravel, what I have is probably 1 head-pan of gravel + 1 head-pan of gravel sand.

The implication is simply:

If I'm working with granite, I can maintain my mix ratios as theory has it but when working with gravel, you are expected to reduce the quantities of sand in it (because gravel itself contains too many sand) so you don't end having too much sand hence the theoretical ratios can't work.

Solution:
The solution to this is by mixing the first bag of cement & aggregate on site and adjusting the quantities accordingly.

Relationship Between Concrete Elements:

CEMENT - SAND - STONE relationship; In practice a 50kg of cement bag contains 2 head pan of cement; this means that if i have a plan to mix 1 bag of cement my mixing ratio would be:

1:2:4 = 1 bag of cement : 4 head-pans of sand : 8 head-pans of stone
1:3:6 = 1 bag of cement : 6 head-pans of sand : 12 head-pans of stone

but must you measure sand and stone in head-pans when you have large quantities to mix?

We have come to conclude also that 4 head-pans = 1 wheel barrow; so for my 1:2:4 mix - I'll have it as 1 bag of cement : 1 wheel barrow of sand : 2 wheel barrow of stone etc.

Over time on site however; you always find the above mix to have too much sand or too much stone....but that doesn't mean the ratios are wrong; IT MEANS OUR MEASUREMENTS ARE NOT ACCURATE - We can only get an accurate mix if we're using a batching plant (off-course not on our little project is this possible)

MY SOLUTION:
I've studied a ratio that works: and that's what I've always recommended on small projects, especially when the Manual Mixers (that mixes half bag at a time) are used.

1:3:3 is that mix.

HALF BAG OF CEMENT : 3 HEAD-PANS OF SAND : 3 HEAD-PANS OF GRANITE and if you're using gravel, you might need to reduce the sand content and increase the stone content to say 1:2:4 etc. mixed with about 30-35 ltrs of water.

Lastly; the other factor that affect this ratio is the size of stone; the smaller the granite size, the more you might need to add eg if I'm using the smallest chippings (1/4) of an Inch; I might need to make my ratio 1:3:4 instead of 1:3:3 to ensure adequate strength.


Lets create a 'healthy discussion' towards ensuring a safe construction practices...


Thanks.


Pics:
1. 1/2 bag Manual Mixer
2. Gravel (It is possible to get 'neat' gravel but most of the ones supplied are local and very dirty with sand here in Lagos)
3. Granite

Saved and thanks for this.

FieldMarshall06:

Saved and thanks for this.

UWC - Thanks for following.

What's the unit of 225 by 255?

Emmzyst:
What's the unit of 225 by 255?

225mm by 225mm

Concrete is good because they make the structure stronger. The only downside now is that they are expensive. But there are other cheaper concrete alternatives.

https://www.duzzlag.com/lightweight-concrete-mix-design/
Concrete is a durable material that can be used for a variety of applications, such as building roads and bridges. Unfortunately, because concrete is so heavy and bulky, it’s difficult to transport and use in large quantities. A new type of lightweight concrete mix has been developed that could make construction more efficient.

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Lopigo:
I haven’t any word to appreciate this post.....Really i am impressed from this post....the person who create this post it was a great human..thanks for shared this with us. asphalt

Thanks Sir for the kind words - words as this keeps me motivated.... do check out my other post on buildings; you'll love them....

Good Evening All.

How're we all doing.
Something new is coming... Watch out

God bless you. Nice writeup!