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Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja - Properties - Nairaland

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Construction Of Five Bedroom Duplex With A Pent House At Guzape(fct Abuja) / A Spacious Semidetached Duplex With Bq In An Estate 1st Ave Gwarinpa Fct 55mil / A Room Self-contained At Life Camp Gwarinpa Fct 400k (2) (3) (4)

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Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 9:44pm On Jan 04, 2020
Here is a detailed report of the construction of a five bedroom duplex at Gwarinpa, FCT Abuja.
The report will include all the detailed construction work from setting out to completion stage.
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 9:46pm On Jan 04, 2020
Setting out and excavation: The setting out was done by the estate to established the necessary setbacks while excavation was done by us.
It took 1 week to carryout the excavation work

The site was very rocking, it took careful planning and experience to properly bring out the foundation footings

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by nwakgr8: 9:51pm On Jan 04, 2020
Save with interest here
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 10:45pm On Jan 04, 2020
Special care was given to the pad footing (isolated foundation footing) since it will carry all the load coming from the first floor.

Many Nigeria Builder's made the mistake of using very small pad base without any structural justification. The right thing to do is to properly carryout a detail structural designs that will give an adequate size (Length x breath) and depth. From experience it has been established that a pad footing shouldn't be less than 900mm x 900m and 300mm thick.

For this particular project, a pad footing of 1200 x 1200mm x 350mm thick was found to be adequate to carry the foundation, sitting on a soil with assumed bearing capacity of 120kN/m2

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 10:50pm On Jan 04, 2020
From the picture above, it can be observed that the anchorage length of the foundation column of 300mm was adequate to help transfer the load from the superstructures to the footing safely. It should also be noted that the footing anchorage was also adequate to control share along the boundary of the pad footing.


The pad footing was reinforced with 12mm high yield bar spaced at 200mm center/center.
The foundation column has 4Y 16mm and 10mm link spaced at 200mm center/center
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:02pm On Jan 04, 2020
Concreting:

This is a very important part of foundation work that most contractors always neglect. Problem of concreting includes and not limited to poor quality control, lack proper of proper mix design specify by the design engineer and general poor workmanship.

From experience most contractors always neglect the structural specification of the mix design and thickness of pad base. For example, a pad footing with the following specification of 1:2:4 (M20) which translate into 1 part of cement (1 bag) to 4 headpan of sand ( 100kg) to 7 head pan of gravel (200kg) normally end up to having much lower quantity of cement.

Quality control which has to do with what method of concrete batching, control of quantity of water and proper gradation of the aggregates may suffer if unqualified personnel carried out the work. For example, having higher volume of water than the specify cement-water ratio may end render the concrete much weaker than the design strength even when the quantity of cement is adequate

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:19pm On Jan 04, 2020
Sub-structure wall ( foundation wall): The walls are made from sancrete block of dimension 450x225x225mm, the walls are bond together with a mortar of sand and cement. These foundation walls are filled with weak concrete to make it rigid and also to prevent dampness and moisture rising through

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:20pm On Jan 04, 2020
More foundation wall pictures

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by mufutau55(m): 11:27pm On Jan 04, 2020
Both your physical and theorical detail explanations surely set you apart. Keep it up jare.

Hajji M.

2 Likes 2 Shares

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:36pm On Jan 04, 2020
mufutau55:
Both your physical and theorical detail explanations surely set you apart. Keep it up jare.

Hajji M.

Thank you sir.
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:54pm On Jan 04, 2020
Filling and compaction of foundation.
The foundation was filled and properly compacted.
Filling and compaction

https://www.youtube.com/watch?v=Y3M82a7nMqU

A hard core layer of 300mm was placed on top of the fill.

https://www.youtube.com/watch?v=xHazyBjm-cs
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:04pm On Jul 08, 2021
More upload from our ongoing project
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:14pm On Jul 08, 2021
Placement of DPC concrete

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:16pm On Jul 08, 2021
more pictures of the concrete placement

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 11:25pm On Jul 08, 2021
Ground floor blockwork.
The building has the following functionality on the ground floor;
1. Ante-Room
2. Living room
3. Dining area
4. Kitchen
5. Store
6 and a Visitor's bedroom

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by Valuepaints20(m): 2:37pm On Jul 15, 2021
Nice job �
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by RobbStark(m): 3:27pm On Jul 15, 2021
This is beautiful. Nice.

Pls continue with update ooo

1 Like

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by Wilotek: 9:00am On Aug 14, 2021
abdulwastecx:
Here is a detailed report of the construction of a five bedroom duplex at Gwarinpa, FCT Abuja.
The report will include all the detailed construction work from setting out to completion stage.


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Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by Autodidact2507: 4:21pm On Aug 18, 2021
abdulwastecx:
More upload from our ongoing project

Good work you doing sir.

Plz incase u need Electrical Engineer (Electrician) you can reach me on 07032611666. I also specializes on solar/ inverter installation, cctv installation and surveillance maintenance + Electrical Installations (residential, commercial & industrial)

Work with us and be glad!
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 4:34am On Oct 12, 2021
Ground floor lintel work.
Basically, I'll be doing a ringed lintel.
Ring lintel is advantageous for this type of build because it makes the house more rigid and also serve as a horizontal ties.

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 4:46am On Oct 12, 2021
More lintel pictures

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 4:52am On Oct 12, 2021
It's important to properly vibrate the concrete to forced out all the air bubble and properly compact the concrete.
Since, the difference between a concrete with a strength of 10N/mm2 (relatively weak concrete) and a 25N/mm2 ( a relatively strong concrete) may be due to quality of batching. I.e, water to cement ratio, selection of aggregates, quality control, degree of vibration etc. Reason why a registered personnel should be handling your job.

Here come the final lintel concrete...

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 4:57am On Oct 12, 2021
Completion of the first floor block work:

After the completion of the lintel work, an additional three courses of blocks were added to the lintel to round up the ground floor work.

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 5:02am On Oct 12, 2021
Here come the second structural milestone of the the project. As a rule of thumb, I normally split the carcass work into four, namely;
substructure, Ground floor, First floor slab /First floor and Concrete fascia/Roof

At this point, we are done with two of the milestone. We'll be rounding up the other two soon. come with me to enjoy this beautiful thread.
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 5:08am On Oct 12, 2021
We're at the third stage of the work.

Here, I'll be showing showing you the construction of the suspended reinforced concrete slab and the first floor block work
For the suspended slab, we have the following;
1-Formwork
2-Placement of rebar
3-Installation of plumbing and electrical piping
4-Finally, placement of concrete
Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 5:20am On Oct 12, 2021
Formwork;
Basically, for this simple one story-building, we'll have beams of 450mm x 230mm and a slab of 150mm thick.
As it's a prerequisite for all our building, i normally carry out a structural design before the commencement of work and at every stage, re-evaluate the design to inculcate and additional changes made design construction. As this building is a prototyped unit, design by the estate and in other to have a structurally sound and aesthetically pleased, we have to make a number of changes.

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Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 5:30am On Oct 12, 2021
2-Placement of rebar;
This is a very important aspect of slab construction. The reinforcement placed at this stage, includes, Y16, and Y10 for the beams and Y12 for the slab.

The shear reinforcement of the beam is spaced at 200mm while the slab reinforcement is spaced at 250mm.

Also, the slab reinforcement is detailed in accordance to the British standard. Where both bottom and top reinforcements are provided at appropriate sections of the slab

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Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 5:34am On Oct 12, 2021
More...
Note the details
At this point we're ready for concrete placement

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 5:40am On Oct 12, 2021
Yeah, we're ready for concrete placement but I'm not going to bore you with too much pictures. Just take these four of our best and ask any question latter. Don't forget to let us handle your next project, be it the carcass, the whole structure, roofing or any of the milestone you think we can be of help.

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Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 4:03pm On Oct 13, 2021
Continuation of the first floor block wall

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Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 4:05pm On Oct 13, 2021
Rounding the first floor with the lintel

Re: Construction Of A 5 Bedroom Duplex At Gwarinpa FCT. Abuja by abdulwastecx(m): 4:06pm On Oct 13, 2021
A look at the front view before the commencement of the concrete fascia.

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