₦airaland Forum

pics

work updates: Ground floor column form work, reinforcement and concreting completed. Reinforcement preparation for first floor slab in progress.

smiley001:
Aventures and Quality... Two different words that have the same meaning... Keep it up sir...

tx for quality and prompt delivery

column formwork in progress

KolaShangOne:
Oga Aventures, remember me? The guy with the 'telescope'
About concrete testing, I will like to ask what brand of cement you used for the test?
I did a concrete test on that "telescope" project at the University of Ibadan. Only that I didn't alter the mix, I altered the cement type and the result was eye opening. The Dangote 42.5R had a quicker time to gain strength and ultimately beat Lafarge cement at 7,14 and 28days.

sir, I used dangote potland cement 42 . But I find out from a colleague recently that elephant supaset with pure chem reterdant gives a very powerful result as well. the reterdant is 110 naira per litter and one litter per bag of cement.

more pics

kicker setting, column reinforcement fixing and column form work making in progress

mufutau55:
Yes. Oga Aventures. Will the stone-dust will be better for decking instead of sand, even Odo-Ogun sharp sand? Thanks.
Hajji M.

sir, I have a lot of respect for Odo Ogun sharp sand. iT has all the qualities of fine aggregate, no salt, very sharp and it also gives a good quality concrete. If it is cheaper for anyone I really recommend it. Though I wish to do the strength comparative test on both soon.

@EgunMogaji. I stated the reason fir this test, if u read thoroughly u ll understand. But let me give a recap:

1. I was among the people that pioneer the use of stone dust on this forum basically for the fact that it is salt less, and friendly to reinforcement unlike lagos dredging that is salty and can enhance corrosion of reinforcement. Cost wise it is relatively cheaper when compared to lagos dredging. Another sand that has the quality of this salt less is odo ogun sharp sand, odo ogun is cheaper in some area close to its source but expensive when bringing it to lagos.

2. I had taught that beyond the quality if saltess, strenght is equally very important, so I need to have assurance that what I am preaching (use of stone dust) is also of good quality when it comes to strength.

Now the result shows that the use of stone dust is stronger than using of Lagos dredging and cheaper and also saltess. so why would I not shared this for others to learn and emulate.

Tx ur apology accepted.

mufutau55:
I know this Client is in a good hand (Builder).
Hajji M.

segcymoor:
Lord is ur strength. .....no be small things o

Thank you all for your support.

we set to hit the sky. setting of kickers in progress.

Glory be to God. Foundation finally delivered.

johnson232:
Engr. Is that the mix ratio u gonna be using for all your concrete works for this project ? Or u just decided to use that mix ratio for the test?

I did this just for experiment purpose. for residential and commercial projects the concrete grade required is 21 and 25 respectively.

kopell:
@Aventures if I may ask, what did you intend to achieve with this experiment. Here in the west, this is the standard procedure for testing any concrete with a fact sheet. Before it used for any job. For record purpose it must meet the standard strengths of what it's being used for. There is no shortcuts about it, its the law. Otherwise you will face the rough side of the law.

my intention is not far fetched. By God's grace I was among the front liners in campaigning for the use of quarry dust simply because it has no salt and that is an advantage against dredging sharp sand (with d exception of ogun sharp wish is salt less and very sharp but very expensive). But this reason is not enough to substantiate this campaign because strenght is also of very high priority in concrete and so I had to do this to comfirm we campaigning right.

As you said that this is law in the west, it is also applicable here and as a matter of fact in Lagos there's is a material testing agenct but they're doing nothing only to collect settlements.
But some high profile corporate body do insist on this QA/QC though they do pay for this.

Update pics.

Dear all,

We are set for closing this phase of work i:e foundation by Wednesday with the Ground floor slab casting.

Reinforcement to ground floor slab to completed tomorrow.

Materials are also on ground. Granite and stone dust as coarse and fine aggregates and cement as the binding agent. I want to encourage all of our builder's in this forum for further embracement of this aggregates by an experiment I undertook.

I prepared a concrete with the mixture of 1:1:2 that is 0ne head pan of granite to one head and of quarry dust, and 2 head pan of granites. This mixture should give Concrete with Grade 30 strength at 28 days. I also prepared second set the same way but this time I used sharp sand instead of quarry dust with the expectation of same strength after 28 days. This concrete were casted in cubes and were taken to Building Technology of Yaba Tech for testing. The test is to be undertaken in 3 stages: 7 days, 14 days and 28 days.

Grade 30 concrete is the grade commonly use for bridges, jetty, airplane runways and some heavyduty structures.

I was surprised to have the cement + quarry dust + granite giving 25N/mm2 (expected 30N/mm2 @ 28 days) while cement + sand+ granite gives 21N/mm2 (aslo expected 30N/mm2 after 28 days.

Good job to the ironbender for arranging the cantilever reinforcement to details. kudos

well calculated stairs. I remember as a trainee engr under my boss Daotec he made me head of stairs form work, reinforcement and concreting dept. lol

more pics

We are set to round up the foundation:

Backfilling and in-filling completed
Surface preparation completed
Reinforcement to ground floor slab in progress

kopell:
do they provide materials inclusive in that price.

yes material inclusive

kopell:
@Aventures how much these guys charge per one, to mold these blocks on site by owner specification.

=N= 145 Per peice of 9 inches sandcrete block. 35 pcs per bag of cement with the use of stone dust and sharp sand.

more pics

work update:
Backfilling completed
Filling in Progress
Block Production

Fhemmmy:
Looking great . . . .

Tx. backfilling completetd yesterday infilling commence today, as we are expecting inflow of filling sand.

smiley001:
Coming up little by little... I know dat dis project will surely be a success IJN.
Keep it up sir.
I'm so happy to be part of dis wonderful project.

smiley001:
Coming up little by little... I know dat dis project will surely be a success IJN.
Keep it up sir.
I'm so happy to be part of dis wonderful project.

Tx bro. I am so sorry for what happened to your vehicle on its way to deliver material for us, and yet you did all possible not to disappoint. So grateful.

Thanks to checkitaut too 3 of its truck tyres got burst while bringing material for us and yet he hustle to deliver though a bit late but better than never. You guys are doing well please keep it up

more pix

mavverick:
Adventures
I am also constructing around the axis. some quick questions.
Did you get disturbed for approval ?
Did some testing material people come ?
How did you deal with them. Thanks.
Also, I see 4 board for the foundation. If at a later stage one decides to increase to 6 board, in the metal work, I see 3 16mm rods tied at the top, can one use 2 instead of 3 for the extra 2 board ? Remember the bottom 4 board used 3 just like you have it in your picture above.

Well, the approval people came but our client is handling that. We no for sure that the Material Testing guys can as well come, but we know for sure when they come there would always be away out.
We have varying heights of our ground beam some are 1.6m high while some are 1.3m high (approx. 4-5 boards). Well it is better to be precise about your fdn height before commencement because you may not be able to add to it as long as it is raft fdn, but rather what some people do is to add filled solid blocks to the top of grd beam and later add a capping beam before the reinforced ground floor slab

segcymoor:
3 Y20 is understandable considering the expected load ....better alternative would have be 5Y16 with spacer. However u would have suspend the introduction of y 20 on top to after casting of ground beam. By so doing d concrete will be pour easily.
Well, hope there is no much concrete waste o.....I fear gbese o
Weldone.....oga @ the top

tx a lot. as a matter of fact that was a new school of thought we learned in the process of work and that is what we applied to finish up the remaining work.

We set to move to the last stage of the foundation: back filling. surface preparation and ground floor reinforcement and concreting. Watch as every actions unfold

Also say a big thank you to our client for patience and understanding, and also his best desire for best construction practice

Ytechconst:
Nice one Aventures....Wish you success on the project bro.

Thanks for all my well wishers i really wish you well. It was quite challenging coming out of this fdn, we had to cast for two days with just few hours interval of rest to allow best practice to prevail in the job. The space of the job was quite slow because we have 3 Y20mm iron as the top bars and this made it tight for the pouring of concrete. but nevertheless we ve got it done. Tx to god and you all

Progress Report: Ground bean casting completed. pics update shortly