₦airaland Forum

pinkbee:
Sorry Sir,
I worked under a surveyor for almost 6 years while I was still in uni. I also passed engineering survey. Classroom n work r way too different. Ur quotation shows a classroom work. That's y most jobs require working experience.

Ur quotation never specified if it was a levelling job.

Never mind!
But dis is what surveyors r fighting. Just like we r fighting about our jobs given 2 bricklayers.
Goodluck dear! Have a lovely day

The rule of the business is profitability and service deliverance. If the scale of the job is small and a brick layer can handle the job well, it will make better sense to give it to a qualified bricklayer to do.

Roles of professionals in building work is influenced by magnitude and complexity of the job. some jobs you need only a builder ( technician, building technologist, etc), some more complex structural works such as frames etc ( a structural engineer), some more complex work where cost, aesthetic are major consideration ( you will need more professionals ranging from the engineers, architect, quantity survey, land survey, etc.) most of all building work you will still need the architect to do the consultancy job like site visitation.

It is always better to have a builder with knowledge in vast area of building construction, civil engineer, land surveying, cost etc to handle your small building project.

I have done several setting out my self using the above principle and it is no class room calculations/estimation but real practical application

fairheven:
No. Virtually no trees just few plants an grass

just get people to do the site clearance for you sir

who is this guy brother?

fairheven:
Am about doing a 4bedroom bungalow in a relatively flat ground,do I still need to do mechanical clearing?

depending on the site condition... if you have trees and heavy bushes then clearance using a grader will be the best and the cheapest for you sir

We are looking at more ways and ideas on how to reduced cost further, so that an average Nigeria can afford to live in a decent accommodation instead of all the slum we find our self.
Bamboo, polystyrene, clay etc are the future of home builder and material engineers.

People want too much money all in the name of professionals, don't let people rip you of your had earn money

sule4:
Please let us be straight forward in our trying to tear down abdulwastecx's approach. It's not alright to get things twisted for ones own gain.
Some contractors are very dishonest; if you're not, don't be scared of his honest and cost saving analysis.

thank you my brother.... what people don't get is we have about 20m building deficiency in a country of more than 170million people, population growth of 5% and per capital income of $3,000 (N600,000), the best one can do is to build for these low to middle income earners.

pinkbee:
The survey aspect of ur quotation is absolutely wrong n misleading.
U expect ppl 2 just give a surveyor 20k for his services n 10k for theodolite?

U only tell ur client d cost of survey per plot. Also, d cost depends on d location. If it's 70k per plot, it covers d amount 2 hire d survey equipments (theodolite/level, gps,tape etc.), transportation, labor, printing n signing.
There's a fixed cost for it depending on the state where d site is located.

I'm not trying 2 spoil ur market but most of our structural engineers know nothing about surveying.

If it's just levelling, will u tell ur client 2 hire equipments for u?
It's a professional job n not a bricklayer's job

there is no market here to spoil madam. i did about three courses in engineering survey which i had A's in all of them, the least i could do is to carry out a levelling operation of a bungalow on a plot of 15m x 30m.

i believe no client in his right senses will pay you 70k to carry out a levelling operation for him.

temmy6996:
pls don't generalise. I follow concrete specification n if u say a mix ratio of 1:3:6 is weak concrete, I guess u av to go back to the drawing board. U can't tell me a concrete mix of 1:3:6 is weak, even when Lagos state material testing lab comes to site during concrete casting, they advice 1:3:6 for reinforced concrete, 1 of the best company having much jobs @ hand is cappa n d'alberto, pls try n check their concrete mix.

i am not saying 1:3:6 is weak but 1:3:6 is weaker than 1:2:4 than since 1:2:4 has more cement and lesser other aggregates than 1:3:6

temmy6996:
pls don't generalise. I follow concrete specification n if u say a mix ratio of 1:3:6 is weak concrete, I guess u av to go back to the drawing board. U can't tell me a concrete mix of 1:3:6 is weak, even when Lagos state material testing lab comes to site during concrete casting, they advice 1:3:6 for reinforced concrete, 1 of the best company having much jobs @ hand is cappa n d'alberto, pls try n check their concrete mix.

i am not saying is weak but it is weaker than 1:2:4

osimi:
Thank you for a job well analysed. Pls what is the estimated cost of building a moderately spacious 4 Bedroom bungalow in a dry land. With land already acquired in a place like lokoja. Thank you.

lokoja is a very good location to build a very cheap and affordable house, i bet you the cost will be minimal....i will need you architectural designs to help you with a figure

chistevoy:
pls i'ld also like to know what is the estimated total cost for a foundation of 5Bedroom bungallow on a dry land.?

send me the drawing

hurricaneChris:
Op good work u have done here. Please don't forget to let us know the challenges u faced while on this project.

ok sir

ushafe:
Nice work, but this is not fix practices in some cases filing the blocks with weak concrete, laying of bolders or hardcores maybe adapt and shoring of excavated trench to avoid collapse. I major in marine / deep foundations and shoreline protection, thank.

yes sir...you are right sir

mystical10:
pls can you tell the (estimate) cost of building 3 self content bedroom with sitting room, dinning and kitchen in owerri

send the drawing to my mail so i can help with the estimates

Castos:
Thank you sir, please after Will the hardcore cover even the foundation wall? And what is the ratio of mix for the hardcore (please state for bungalow and duplex)

hardcore is not a concrete but is the material put under floor . It is used as a sub base after building the foundation wall to make up levels before casting the ground floor oversite concrete or DPC.
The recommended type of material for hardcore
is hard stone ballast or quarry waste that is retained on a 150mm BS sieve .
Care should be taken
to ensure that the hardcore is free of weeds, roots, vegetable soil,
clay, black cotton soil or other unsuitable materials. Broken stones
or brick and waste concrete from a demolished structure can also be used as hardcore

Castos:
Thank you sir, please after Will the hardcore cover even the foundation wall? And what is the ratio of mix for the hardcore (please state for bungalow and duplex)

hardcore is not a concrete but is the material put under floor . It is used as a sub base after building the foundation wall to make up levels before casting the ground floor oversite concrete of DPC.
The recommended type of material for hardcore
is hard stone ballast or quarry waste that is retained on a 150mm BS sieve .
Care should be taken
to ensure that the hardcore is free of weeds, roots, vegetable soil,
clay, black cotton soil or other unsuitable materials. Broken stones
or brick and waste concrete from a demolished structure can also be used as hardcore

temmy6996:
I disagree with the mix ratio u explained here. The 1:3:6 is used for mass concrete n the 1:2:4 is for reinforced concrete. Pls try n verify n apply corrections too.

1: 3: 6 is weaker than 1: 2: 4 or 1: 2: 4 is stronger than 1: 3: 6, The difference between the two is just the cement content and the ratio of aggregates.

we are talking about a bungalow where the load on the structure are not that critical, hence a well placed concrete of 1: 3: 6 will do the work sufficiently.

The problem now is we don't even follow these ratios because of inadequate concrete production mechanism like batching plant.

Castos:
Oga, when shall one apply that DPM (that nylon stuff), is it between hardcore and oversite concrete or before hardcore?

between hardcore and oversite concrete

Castos:
Oga, I greet your office sir. That 'P' represents what sir, thank you.

perimeter

pinkbee:
Is that cost for an ordinary site plan or a registered survey plan or levelling?
R u a surveyor? If ur answer is no, please don't mislead ppl with dis. Correct it

Madam... this is relative topic of discussion. I am not a surveyor but building leveling can also be done by a civil engineer ( see engineering surveying), All these quotes here are for relatively small building work of say two bedroom to three bedroom flats.

Akan:
Op, can you do work in Uyo if contracted

yes sir...

COOLDK:
Job well done bro.
But in your analysis of cement, is cement density 1560kg or 1440kg? Cos a Lotta estimates go with the later.

Thanks

density of ordinary portland cement is about 1506kg/m3

chimchim1:
Pls, how do i get ur contact. I am in ph too. Or how do i meet u? 08059306124. U can send sms or flash.

ok sir... i will add you up on bbm or whatsapp

abeffiom:
Firstly speaking as a qualified QUANTITY SURVEYOR dpc is very different from overs site concrete. Pls let that be noted first. DPC means damp proof course which is asingle shit of water proof running alone the wall. We also have Dpm. Which is damp proof membrain which is put in b/w the floor and held by the wire mesh. Pls dpc ain't oversite concrete. Pls.

it is just a popular among building construction expert to interchanged those two. to me DPC ( damp proof course ) is a combination of a membrane use after filling (with leterite, hard core and sharp sand) and the concrete placed on top of that membrane basically to prevent moisture from rising through the foundation. basically it serve other structural purpose like allowing a uniform building level to be achieved after foundation, it also serve as tie to join the foundation wall together.
the BRC ( British reinforced mesh ) is introduced at the middle to prevent sinking under its own weight and cracking due to internal tension which may developed in the concrete.

summary. DPC = DPM + oversite concrete

MrLittleFinger1:
Nice job. But your interpretation of the mix ratios seems confusing, or at best, incorrect. Please, revisit.

My friend i don't see anything ambiguous my explanation above. when i say 1:2:4 means one bag of cement to four head pan of sharp sand and eight head pan of gravel/granite, i am saying that by assuming that a bag of cement is equivalent to two head pan of cement ( which is practically accurate )

UnknownT:
Sorry for dragging you back, in that volume of concrete calculation, that 1.25 is from what?

1.25 means increase of 25% in volume to cater for wastage and shrinkage

jfkenny:
Can one use pieces of blocks and concrete from a demolished house to fill the foundation..instead of latterite

yes sir, provided it is properly compacted

sule4:
Abdul, is there any setback to the structure if I wait till after roofing, plumbing and electrical work before doing the oversite concrete job

Always better to do it before super structure ( wall ontop of the foundation) because it help to create a uniform level after the foundation in other to receive the super structure block wall, with a properly spread membrane ( polystyrene) it help prevent moisture from rising through the block wall which may spoil painting and plastering in the super structural wal

olempe:
I guess the journalist would state the official figure given to him, or maybe its simply 300million but we find it hard to believe cos we're used to big figures with which they use to dupe us.

that job is much more than 300m

emmadejust:
I wish you more speed and strength to meet up with the targeted time .....

thanks sir

i can help you with orion brother...where do you live in ph? you need orion for reinforced concrete design you need things like lin pro for analysis you will need stad pro for steel design and analysis

Icon4s:
So my Brother pls what is the estimated total cost for a foundation of 4Bedroom bungallow on a dry land.?

setting out = 40k
excavation = 80 - 100k ( with a depth of 600mm and width of 450 or 675mm)
blinding concrete = 250k ( assuming 15k/cubic meter)
block work blocks both materials and workmanship= 500K
some foundation side columns = 80k
filling = base on site condition
dpc of 100mm thick (4" = 350k

TOTAL WITHOUT SUPERVISION FEE AND FILLING = 1.35m ( for a very solid job)