₦airaland Forum

mufutau55:
Thank you very much Aventures, my man.
The flooring still need to be done o, undecided between interlocking and stamped concrete. But then, I will need adequate supervision. I will still contact you on this soon.
Ypu have been involved in this project from the beginning, with your help in building it and managing my kobo-kobo adequately.
And yes, when I am around I will repaint and tone down some of those bright colors in the bedrooms.
Thank you and stay blessed.
Thank you sir. Hoping to hear from you sir. both interlocking and polished stamped concrete are good. My concern is that high quality and standard of interlocking process is very expensive and also require maintenance. what we see most people doing is far from standard. For standard interlocking it is expected you grade to level, compact then 2-3inches quality blinding follow by stonedust base laying and compaction before final laying of the stones itself and locking with plate compactor.

The polished concrete stamped floor , I have my reservation, those that do it always charge per square meter which includes the material and labour for entire work up to polishing, how do we ensure the quality of concrete. Also I am working in an estate presently and that is what everybody is doing so I have the opportunity to observed that they wash it regularly and also re-polish once in a while to maintain the shiny look.

When we got to that stage, we would weigh option and no the way forward.

Hajji M.

mufutau55:
It was a real pleasure working with a professional like you.
From the haggling on the project cost and the initial supply of your sketched diagrams of the individual items, it was handled in a gentleman fashion.
My Doctor brother insisted on visiting your workshop before entrusting you with the fund, he was very impressive with all the equipment in your workshop and your gentlemanly attitude in introducing him to every piece of equipment and what they do.
My brother was also sold on your sincerity.
You work is very professional and timely, you never missed a deadline even after all the changes requested from the initial agreement. I also love your cost despite my kobo-kobo approach, without you compromising on using inferior materials.
You will be highly recommended and more work from me shall be coming your way. I have no doubt in your ability to do a good rofessional and timely work. Thank you and God bless you.

Hajji M.

smallsmall:
Did you not see the post by KDesignteck up there, where he advertised his Achitectural drawings, with so many pictures of his product and asked if anyone wants to patronise him, Is that not advert or do we have two different definition of adverts here?

I have nothing against the poster but l just think the same yardstick should be used across board, no sacred cow.
But if you say you dont see it or it is not advert but QUESTIONS, please don vex, so be it.

abdulwastecx:
Nice analysis sir. It is not cheaper than wooden formwork.
the 8ft x 2ft ( 1.44sqm) will cost an average of N2,500/sqm.

timber form using very sound timber ( 25 x 300 x 3500mm)
cost of timber = 1200/sqm
cost of the strut, braze, nail and binding wire and occasional bamboo brazing = N600
cost of workmanship = N300/sqm
Total cost breakdown = N 2100/sqm ( which is 4,100 per pair ).

At first glance at this two type of formwork, the prefab type looks quite cheaper at least 39% cheaper, but looking deeper into the advantages and disadvantages will give us a clearer picture of which is better.

The prefab formwork:
It is neater and faster than the conventional type of form using timber or wood but can be very difficult to braze when the beam thickness exceed 0.6m (2ft deap beam). when use for raft foundation, it will be difficult to join them verticall and you will need to provide extra brazing in the form of wood and bamboo, this will automatically drive up the price.

it is not that flexible to use for raft or beam fromwork because there are cases where you will need to form a beam that is less than 2.4m (8ft) in length, since you can't easily cut the the form work.

It is difficult to get the joint of the beam or raft formwork done

The wooden/timber form
It is more flexible
It can easily be brazed by batting and bamboo during raft construction.
It can easily be reused for subsequent job like the lintel or the slab/decking during construction

In summary, Timber form will be ideal for custom built home, where the depth of the raft exceed 0.6m (2ft) while the prefab will be ideal for mass housing design where the raft beam is design to be in multiple of 8ft in length, for drainages and other infrastructure project

spyder880:
It happens all the time, I couldn't also post pictures yesterday. Try again later in the evening. Good work.

ceelog:
Post pictures Oga
You are permitted. We came to learn (not to eventually build by laymen ourselves, but to understand the basics of what is being done to our building and to "follow" alongside the professionals.

You both are awesome. I confess.
Structures and structural design are your playtools

ceelog:
He is simply flawless. Just like what Aventures said..."he exposes the theory to the ordinary man".

I enjoy having to use his examples to dazzle my colleagues.

@Abdul....abeg enter school go teach even if na part-time. You get am!

abdulwastecx:
That is also a good solution sir. But in this case, a raft foundation might be more expensive than an isolated pad footing. That is why structural engineering is such an interesting field, there can be 1million solution to the same problem but the best solution will be the one that satisfies the safety and economy of the structure.

For a one storey building carrying one suspended floor, the worst point load coming from the structure might be 300KN, this will give a give a pad base area of a 3m2 (1.8m x 1.8m), this will be more economical than a raft footing in my own opinion.
From the soil test report, the soil is predicted to be predominantly cohesive, hence there wouldn't be a problem of soil falling back into the foundation at a depth of between 1.2m to 1.5m

The type of foundation I am proposing here is the one with pad footing and grade beam ( different from the normal one of pad footing and strip footing).In this case, only the pad footing is dug up to that supposed depth of between 1.2m to 1.5m and the foundation columns are connected at the ground level with a grade beam to carry the wall up to DPC level, the DPC and the ground floor partition walls.

Finally, If after a detailed structural analysis, design and estimation of the cost of materials using this method is more expensive than say raft foundation, then it will be better to go with a surface raft

abdulwastecx:
I have gone through the soil test report and here are my observations.
1. soil safe bearing capacity of 100kN/m2 gotten from the soil test report using Terzaghi bearing capacity equation is adequate to carry an isolated pad footings
2. the water level is 3.6m below the existing ground level at the pick of raining reason will have little effect on the settlement pattern of such footing
3. A settlement value of 85mm gotten through the consolidation test is okay for an isolated pad base for the proposed foundation
4. From the soil test, the site was also observed to be above the road level, hence the ground floor level don't need to necessarily be too higher than the NGL. Also, the runoff value shows that the site is not prone to flooding, this also helps to reinforce the need to have a very high ground floor level.
5. Finally, a suitable bearing capacity occurs between 1m to 3m below the NGL, hence the depth of the foundation can be located with this dept (preferable at 1.5m below the NGL)

Here is my conclusion:
To get the most cost-effective and safe foundation,
1. A preliminary load estimation of the superstructure should be carried out to determine the expected superstructure load coming into the foundation through the columns ( this load should also include the ground floor walls)
2. A preliminary area of the pad footings should be estimated, from P/Q (P = unfactored superstructure load, Q= safe bearing capacity)
3. A grade beam of 300mm thick should be proposed to tie/link or the foundation columns at the ground level, this will also help to carry the ground floor walls ( this should be a preliminary depth, which should be subjected to further analysis and design according to relevant codes and literature
4. the foundation level should be raised to not more than 750mm above the ground level since the NGL is already higher than the road level and the site is not prone to flooding. This can be done by adding 2 courses of block to the grade beams and a DPC thickness of 150mm after the two blocks.
5. The depth of the pad footings should be not less than 1.2m, preferably 1.5m below ground level.

Note NGL= natural ground level
DPC = damp proof course/ german floor

Rubbiish:
So without the practicing license your ARCON certificate becomes invalid sir?

Rubbiish:
Are u an architect sir?
Your ARCON certificate is your practicing licence...

mufutau55:
@Aventures
I am taking care of all or any intruder with direct or indirect advertisement. It may be late but they will be deleted including any response to the posts.
Long time, how business. Thanks.

Hajji M.

samoskyz:
Property For Sale @ Trans ,Amadi Industrial Layout, Port Harcourt, Rivers State.
1. 40 Plots/ Warehouse: Asking #1.2b.
2. 30 Plots vacant land: Asking: #850m. Note that they are both fenced and separated by a wall with C of O, located in a choice area, at the heart of the industrial area. Pls, very negotiable. Contact :+2348069801335 for details and inspections

MrJohnson1987:
Hi Great minds of Nairaland
This is to formally appologies to Mr.Raphael aka ThatHistoryguy here on Nairaland. I am terribly sorry for calling you out here for no just cause.
My tiler finished with the tilling yesterday and told me the tile was complete to 160m² as he(Raphael) said it would. Please pardon my ignorance.You have earned my trust and as I told you when I came to your place am into real estate development now,so I promise you that whenever I need tiles and all you sell,I will always call for you delivery. Raphael I hope you truly forgive.

Thanks to all that contributed in one way or the other to resolving this misunderstanding .

Bimpsyyyyy:
I need a comprehensive and self explanatory estimate of a building.
I want to build and I don't know who to call
I need architectural, structural, mechanical and electrical drawing and 3d
I want a professional advice in consteuction
Everything you need now is not far fetched again, just beckon on me, a reliable and qualified female engineer for the solution. Call me on 09069193297,whatsapp on 07051805606, adebimpeakinrinola@gmail.com

MrJohnson1987:
Alright
Thanks so much
I think am beginning to understand his maths. However,have told my tiler to look into it and if I eventually happen to be wrong I will tender my due and sincere appologies.

aonag:
bros hajji, how good are these guys on a scale of 1-10?

dejavus:
Hi All,

Can I kindly ask for a critique of the proposed floor plan for a project in IB. Its a Twin Semi-Detached Duplex.

twinskenny:
i wonder what usually change people.. good start all of a sudden a wrong turn?

kopell:
Oga how you dey long time oh, your contribution here this day is limited. Waiting happen. Your students are waiting to hear from you.

spyder880:
I have used tiles in the past, and even melted tar to provide a water leak proof surface, but I am looking at something new for this current work I am doing. I am exploring a method called "felting" this is a way of using rubber felt to spread and stick over the tank base act as a waterproof membrane sealing the tank base floor.

Yhunoos:
I'm relatively new to Lagos, I live with my Uncle close to General Hospital Isolo, and I don't have a car though I can get to any parts of Lagos from where I stay.

Yhunoos:
Hello! Good Day all, I just graduated from FUTMINNA, Building department and I just relocated to Lagos. I was wondering if I can find someone here who I can follow to construction sites so I can gain site experience before I proceed for my youth service. it would be of great help if anyone can help with this as I am so eager to learn and be of any assistance.. thank you in advance.

Chekitaut:
March will be like Waoooh! in building industries, all materials proce will go up. Cement, Granite, Iron rod, Sharp sand etc. information gather is that Ministry of mineral resources(state & federal) increase taxes been paid by operators. The raising graph will likely drop from march.

Granite & Sharp sand are up now and will still go up.