Abdulwastecx's Posts

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 11:48pm On Jan 29, 2016*

EgunMogaji:
If the final picture shows the final coach of the foundation wall them I'm jealous my oga

You'll need very little filling. I've spent N300k (340 tons) on laterite on my "little garage" site

That is one of the problem with the way we built.
There is a terzaqi equation use to determine depth of foundation and such depth is control by water table and some other soil parameters.

If your site is relatively higher than the access road you don't need to raise your house too high.

If your site is not a sloping terrain, you don't need to raise your house too high

If your area is not prone to flooding, you don't need to raise your floor too high.

If I have a soil strata where, say from NGL to say 2m the soil is firm clay and the water table is around 3m below. Assuming I want to build a small bungalow with wall load of say 10kN/m, such foundation can be founded between 600mm to 2000mm.

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 11:38pm On Jan 29, 2016

fkj950ax:
@abdulwastec
Thanks for the tutorial.
Watching it till it pans out.

Please can you share the technical and architectural plans of the project.

Will like to replicate this project .

What is the projected cost for everything excl land

You know it will not be polite to do share someone building plan. I can produce similar one for you at reasonable cost.

The projected cost of the project will vary greatly if this house is built I the east or west because so any variable like cost of materials.
Here 30tonne of gravel is 65k, similar gravel will cost me 165k in anambra and about 200k in Port Harcourt.

Digging of the foundation was done for 20k, it will cost up to 45 to 50k in the east.

In summary, this building will cost between 4-6million to achieve what I have on the three dimensional drawings.
1.long span aluminum roofing sheet
2 . sliding Windows,
3. Tiles of around N1200/square meters
4. Pop ceiling for living room and dining, and pvc ceiling for other rooms.
5.polyatyrene fascia
6.interlocked compound

Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 11:26pm On Jan 29, 2016

johnson232:
very neat job as usual my able engr.

my questions;
is it 196m or 96m?
how many bags of cement, tons of sand and gravel did u use for the footing?
thanks.

96m
Bags of cement = around 30bags .
Can't really tell Bouton sand because we bought 30tonnes and we still plenty left, likewise for gravel.

Note: site conditions vary, dry land with good soil property supporting a light partition wall consume much less material than those built on poorer soil.

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 11:21pm On Jan 29, 2016

johnson232:
very neat job as usual my able engr.

my questions;
is it 196m or 96m?
how many bags of cement, tons of sand and gravel did u use for the footing?
thanks.

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 11:06pm On Jan 29, 2016

mavverick:
Thanks for the reply, reapply appreciated.

Granite may not be cost effective for me, and i am not building a garage and calling it a house like some people do, so different solutions for different folks.

This is a commercial property and I dont think that wood will serve me in the long run, I have seen concrete worktop done very well and you may not even know. its all down to ones imagination.

I like that your concrete worktop idea. It is ideal for commercial properties

1 Like

Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 10:59pm On Jan 29, 2016*

karleone:
Sir, I've asked a question concerning the relevance of head courses in structures but you never replied my mention. That aside, as a young civil/structural engineering graduate who has interest in building construction and wishes to learn (cos he's a substructure novice), is it necessary to place reinforcement bars along the strip before placement of concrete?

I am sorry for not answering your mention.
To answer your first question.
1. Head beam/course is compulsory in a building because it serve as horizontal tie to link all the columns together, help to distribute roof load to the supporting columns and wall and also also tie the roof to the structure through a connector that is placed on the concrete.
For load bearing wall, it help to distribute roof truss load which may serve as point load on top of the sancrete portions. this point load when not distributed courses wall cracking.

2. Is it necessary to place reinforcement on the trip footings before placement of concrete?

There are two types of strip footing
. Normal strip footing
. Reinforced wide strip footing
The normal strip footing doesn't require reinforcement and it is used when the soil is relatively strong ( high bearing capacity, low settlement etc) and when wall load intensity is low.

Reinforced wide strip footing is a footing design to carry load bearing wall and it'a reinforced to cater for bending and settlement along the foundation length

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 10:46pm On Jan 29, 2016

More from the foundation block work

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 10:39pm On Jan 29, 2016

Foundation block work.

Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 10:36pm On Jan 29, 2016

Due to the nature of the soil, it was very difficult to dig more than 450mm to around 500mm. The soil is stiff clay and the site is relatively higher than the road.

Casting of foundation
1. Total length of strip footing =96m
2. Width of footings =675mm
3. Depth of footings = 150mm
4. Mix ratio =1:3:6 (by mass)

Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 10:24pm On Jan 29, 2016

Excavation of foundation: the excavation was done manually.
Total gird to be excavated : 196m
Width of excavation 675mm
Depth of excavation = 600mm

Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 10:18pm On Jan 29, 2016

Abuja and it's environs is a good place to sources for building materials like gravel.
30 tonne gravel goes for around 65k
30 tonne sand around = 35k
30 tonne stone dust = 55k
Cement plus transportation = N1500

Material purchase to site
1. 30 tonne of gravel (19.5mm)
2. 30 tonne sharp sand
3. 50bags of cement

3 Likes

Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 10:11pm On Jan 29, 2016

EgunMogaji:
Nice plan. No ensuite. Seems open plan though so concerned with kitchen ambience.

I don't see the 2nd exit in an easily accessible place, seems to be inside the master. I think code requires direct access from all occupants.

I like the plan though very petite.

Good observation.
Only the master bedroom is ensuit, the children room and occasional guess room will use the toilet/ baths along the corridor.
The space to the left will be use to access the 50 x 50 at the back, hence the owner demand to have one exit door in the master bedroom.

The kitchen and dinning are open to each other in a good way. Traditionally, most home don't use dining room again, it's better to have them joined together with the kitchen to save partition wall and money

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 9:31pm On Jan 29, 2016*

Day one: setting out using profile board.
Question: how do we transfer what we have on our paper to the ground without any noticeable errors

We have a building plan ( as shown below), we do the following to get our setting out done within 3hours.

1. Remeasuring the plot to conform what we have on the site plan using a 50m plastic tape.

2. We set out the building line ( front of the building) by offsetting 9ft from the fence.

3. We use these two point from the building line ( front to set out the other two point at the back.

4. We offset 1.2m from these four stations ( four peg point) to get four corner point of our profile.

5. Lines are placed from these for point to get all the pegs on which the profile will be placed run the building .
6. The pegs are spaced in such a way that each profile take three pegs.

Then, the building plan is transfer to this profile from the drawing

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 9:23pm On Jan 29, 2016

See one: site clearance and setting out using profile board.

Flr this small setting out, we use the following materials
1. Three bundle of 900mm high peg.
2. 20 profile board ( 2 x 2 soft wood)
3. Nail, builder square, line, 6ft plumb, claw hammer etc.
4 . carpenter and one Labour

Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 9:09pm On Jan 29, 2016

Building design : the house is designed to accommodate a small middle class family of four to five, with the following information
1. Living room =15ft x 16ft
2. Master's bedroom = 15ff x 12ft
3. Children room =12ft x 12ft
4. Visitors/ study room = 100ft x 10f
5. Master bedroom toilet and bath = 5ft x 8ft.
6. General toilet = 4ft x 12ft
7.kitchen and dinning
8.small entrance porch

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Properties › Re: Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 9:02pm On Jan 29, 2016*

Building location : the building is situated on a 50x 50ft plot of Land, in a very good location for meddle to low income earners.

The infrastructure is this area is outstanding and it includes, stable electricity, 24 hours water supply and a very secure location.

The layout is great, hence, materials are easy to get to site.

4 Likes

Properties › Construction Of A Low Cost Three Bedroom bungalow In Suleja by abdulwastecx(op): 8:58pm On Jan 29, 2016*

Good evening my Nairalander, I present to you the construction of a low cost three bedroom flat in suleja ( niger state), a satellite two close to Abuja.

Name of designer = abdulwastecx
Client = abdulwastecx (a Nairalander)
Location = suleja gra, back of city link/golden touch hotel.
Duration of work = unknown.
Building type = small three bedroom flat (with two toilet).

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 1:29am On Jan 29, 2016

Miscellaneous:
abdulwastecx I don like all your post finish o.But how did u become this good. ? I am just a student trying to Be as good as u. You know, throwing insights will be a lot helpful

Thank boss.. . We still dey learn o

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Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 7:44pm On Jan 27, 2016

sgtkole:
Okay,

Is it advise-able to use in building a 3 story building.

It will be ideal for such high rise building since it means less floor load on the supporting members of beams and columns.

Remember that slab only depend on the functionality of the floor. It only depend on the imposed load of people that will use it, it's self weigh, fixture load and other movable load that may be placed on it.

The rib or waffle slab is very good and economical for floors with relatively small load ( residential: impose load 1.5-2kN/m2), offices, schools, etx

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 7:37pm On Jan 27, 2016

mavverick:
Thanks Bro for the advice.

Just a few things, I dont have stone dust on the ground, only sharp sand at the moment.
I also dont have 6mm rebars, can i use 12mm and increase thickness of concrete or perhaps mesh ? If mesh, which one ?
also about the ply, I only have 1 by 12 on ground to line the base of the form work, I can ask them to go buy ply though, since its a small quantity and once the formwork is removed, it can be used for the next one. Or do you think its better to buy some small marine board. Seems perfect for jobs like this, and that wouldn't need polythene right ?

Also, just to explain myself well, onnce the forms are removed, tiles will still go on it, so it doesnt have to be as smooth as a boiled egg, in fact the surface might need a little rubbing so that tiles will stick well.

1. You can use very sharp sand and 12.5mm gravel then of mix ratio 1:3:6

2. Marine wood will be ideal if you can afford it

3. If you have 12mm bar, you can go-ahead and use it

4. The suffice need to be smooth not the top since you are going to tile the top.

5. I think 75mm will be ideal since if too thick will render it not attractive.

I will you you are sketch soon

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 4:10pm On Jan 27, 2016

mavverick:
How far with your comments about the kitchen worktop ?
Based on your analysis on slab/vibration etc, what kind of thickness should be used for a kitchen worktop, its not going to be carrying heavy load, most people use MDF/HDF and that does the job most of the time.

I will recommend you use 3'' ( 75mm).
Use stone dust as the only aggregates in a mix of 1:6
For the Formwork I will recommend you use particle board plywood and spread polythene on it to get a very smooth surface after removal of forms
Use 6mm mild steel bar spaced at 200mm center to center both directions

1 Like

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 3:26pm On Jan 27, 2016

mavverick:
Thanks for the explanation.
I once had a structural engineer who said he would suggest extra columns in some place because when he JUMPED UP AND HE SAID IF THERE IS VIBRATION THEN A COLUMN IS NEEDED IN THAT AREA.

When the Strucural engineer that did the building drawing was challanged, he said the person is just trying to take your money and trying to find work to do, whcih may not be needed.

It also got me thinking, if the person jumping up is a Yokozuna, there might be vibration, which has nothing to do with lack of columns, but due to his weight.
Is this thinking of jumping up FACT or FICTION ! or is there supposed to be some kind of machine similar to the one used by Building Material Testing to test concrete etc.

Coz na one Engineer for NL talk am !!

See the picture below, if 2 of them jump up, one is likely to cause vibration where the other guy might not cause any vibration !!

Structural analysis and design is the most reliable ways to understand choice of structural section and number of structural members required in a building

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Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 3:24pm On Jan 27, 2016

mavverick:
Thanks for the explanation.
I once had a structural engineer who said he would suggest extra columns in some place because when he JUMPED UP AND HE SAID IF THERE IS VIBRATION THEN A COLUMN IS NEEDED IN THAT AREA.

When the Strucural engineer that did the building drawing was challanged, he said the person is just trying to take your money and trying to find work to do, whcih may not be needed.

It also got me thinking, if the person jumping up is a Yokozuna, there might be vibration, which has nothing to do with lack of columns, but due to his weight.
Is this thinking of jumping up FACT or FICTION ! or is there supposed to be some kind of machine similar to the one used by Building Material Testing to test concrete etc.

Coz na one Engineer for NL talk am !!

See the picture below, if 2 of them jump up, one is likely to cause vibration where the other guy might not cause any vibration !!

Slab vibration for solid slab (slab with edge beams) different from flat slab is a problem associated with large span slab without intermediate beams.

Most of house are built with solid two-way or One - way slab, when the slab is one one way reinforcement is needed along only one strip but two ways reinforcement needed in two ways.

Vibration problem is a deflection problem and result from a very thin slab. Thin here is subjective, which means a slab 150mm thick and plan area of 6m x 5m may be two thin when the slab is use in a shop or a public place because of higher life load (2.5-3kN/m2) instead of 1.5kN/m2 for residential.

Vibration indicates thinnest of slab or lack of adequate beam for solid slab.

It is a wrong practice to introduce column in a solid slab without adequate beam to reduce the punching effect on slab.
It is also a wrong practice to introduce hidden beam within a slab because such beam effective depth Will not be adequate.

Solid slab vibrate when depth is not adequate in deflection, which indicate need for increase in depth or introduction of beams.

Beam deflection is the only indicator for addition of column.

1 Like

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 1:20pm On Jan 27, 2016

mavverick:
Just a thought that I had the other day.
Within a building plan there should be structural calculations done by a qualified structural engineer. They will calculate the load etc and specify where and how many pillars a building should have. Of course this doesn't apply to brabus who doesn't use the services of a structural engineer or simply uses the structural drawing of building A for building B, then kneels in front of prayer stone to pray all should be well. We have seen him do this to a client at Iba and I'm sure there are many more. Back to the question, how do competent builders decide on where extra pillars should be added or perhaps new ones introduced where necessary. I will share what I have heard, but thought it would be good to get other opinions.

There are three type of pillars from the perspective of functionality
1. Structural pillars (columns) in frame structure
2 . structural pillars ( columns) in non frames structure
3. Aesthetic pillars (column)

I will be using columns instead of pillars.

A column is a structural member that load from beam to foundation or to column or another beams. It also carry moment from this beam or slab (for flat slab). The load mostly carries are idealized as point load. It carries different type of load such as axial load, uni axial and Biaxial load. The load is said to be axial if the load act at the centroid of columns, uni axial if it has one eccentricity, and Biaxial if it has two eccentricity.

To know the number of column required in a house, we have to know the functionality of the house.

Structural column carries load from suspended floors or roof. The quantity of the column is determined by architectural requirement and load intensity.

For practical purpose, most residential building have their column space at maximum of 6m center. The most economical way of spacing column is 4.5m c/c.

That is why it's important to do architectural design with equally spaced grid system.

Spacing of columns is done to reduce bending moment and over hang both side help in a way

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Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 9:48am On Jan 27, 2016

mavverick:
Our engineers in the house. Any thoughts ?

I will give you some detail breakdown soon oga but to begin with, you under utilized the kitchen space

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 9:44am On Jan 27, 2016

Olabamijie:
Hello nairalanders, Architects, Builders and Civil Engineers alike, how una dey?

There’s this little problem I hope we can all solve together. The plan attached is a 3beedroom Bungalow my client bought from one of these estate developers here in Abuja. I believe we are all familiar with their clause of having to build in accordance with specified prototype mandated by the developer. My client is a single young man and he feels a 3bedroom apartment is just too much for him for now. We consulted the developer and they relaxed the clause just a bit: we are allowed to alter the interior parts of the proposed plan but shouldn’t shift a block of the exterior (window/door positions MUST remain the same).

NOW.

How best do you think we can alter this plan to get a functional 2bedroom and another 1bedroom apartment under the same roof working with the earlier mentioned restrictions?

Every input will be warmly appreciated.

Thanks.

Josh baba.. .. I am on it

CC @abdulwastecx

1 Like

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 3:40pm On Jan 25, 2016

sgtkole:
Experts in the house.

Please enlighten us on the use of HOLLOW POTS in building construction!

A builder i was speaking to mentioned this and more clarification is needed on this topic. I have never heard of it before.

I anticipate your responses.

Hollow port is made from burnt brick and used to filled void in a ribbed slab. The dimensions of the hollow varies depending on the design parameters of the rib slab.

Properties › Re: How To Build A Low Budget Bungalow ( 3 Bedroom Flat As Case Study) by abdulwastecx(op): 10:20am On Jan 25, 2016

Hiibeek:
please I need the cost breakdown
setting out:number of pegs, profile boards etc..
excavation work:required depth
foundation footing:volume of concrete, cement needed, sand and gravel
substructure:no of blocks, cement, sand...
dpc:cement, sand, gravel, nylon
dpc to rooflevel.
number of footing,pillars/rods, links, needed.cement, sand and gravel needed for casting
and also reinforcement for casting lintel cemnet sand and gravel
formwork
AND ANY OTHER NECCESSARY COST
all am trying to say is say PLEASE I need a very simple breakdown and proper explanation of d analysis and cost estimate of d building.
Thanks for ur anticipated cooperation.

This is a big job... It will take a lot of energy to get it done. You will have to pay

6 Likes

Properties › Re: Construction Of Two Unit Semi Detached Two Bedroom Flat, Ogidi, Anambra State by abdulwastecx(op): 10:06am On Jan 25, 2016

Hiibeek:
please how do I make d cost estimates of
20pillars?
footing, colums,links,number of bags of cement needed, sand, gravel
please help

Will you pay me sir? Lol

It's simple
1. Know the dimensions of your column ( I. e height, width and breadth), dimension of your footing ( B X L and the depth).

2. calculate the volume

3. For a simple concrete M20- M25, about N20,000- N25,000/ cubic meters.

For the reinforcement, you will need to understand bending schedule and a detail design from the structural drawings to do that.

You can as well pay small token to get the estimate down by us

2 Likes

Properties › Re: How To Build A Low Budget Bungalow ( 3 Bedroom Flat As Case Study) by abdulwastecx(op): 9:56am On Jan 25, 2016

Miscellaneous:
Pls I am studying the creative nature of the plan and I really want to know if u used Photoshop for the rendering of the floor plan. Or what did you use to make each area(bedroom, lobby, etc) colourful ? In print will these colourful layer show ?

Also, u said you are gonna use 225mm headcourse and went further to say the headcourse simply means the concrete beam holding rafters and ties. I am in disarray, so u mean the headcourse is on the lintel ? Or the lintel is the head course ?

I use '' color scheme " on revit architecture. It is a tool on revit.

Head course is a concrete layer after lintel. It is done after two course of block has been layer on top of the linel

1 Like

Properties › Re: General Topic Thread-To Discuss Anything And Everything in Building Construction by abdulwastecx(m): 1:39pm On Jan 22, 2016

brabus:
Tell me more. I'm building 30 units of that building where I took that pics for a Nairalander this year. The terrain is loose soil.

I'll be roofing the first prototype in few days. So, tell me something I'd love to hear.

Send me one unit of those building and the soil text so I can do a prototype design and possibly a detail cost break down

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