Ussy4real:
Her own trouser dey like say na wrapper she take saw am.. Rihanna too fine choi

bixton:



Fire does not affect concrete per se. But in the triangle/tetrahedron of fire , we have heat.
Heat may likely have an effect on concrete/RC depending on its span and thickness. In the instance where the span/thickness of concrete is much and the absorbed heat caused by the fire when it cools in the concrete does not overlap proportionally along the span of the concrete it will result to cracks within which will become visible.


You can liken it to the local way of mining granite. In areas where igneous rocks are visible and within reach, local miners pour liquid fuel and ignite it. It's left to catch fire for some time and afterwards they go with small handy hammers and hit on the rock to cause cracks and to get the rocks into tiny sizes to be used .

ademoladeji:


The wearing course- ASPHALT of course

Now going with your submission, with raging fire with time less than 6hrs, the concrete for me is still in order.

From experience, I was opportuned to work on a burnt section of Marine beach bride, Ijora, Lagos. Both destructive n NDT were carried out in relation to unburnt section. Result shows relatively same compressive strength of concrete both for the piers, girders n deck.

We were required to produce concrete jacketting to the existing structure as need arises for increase in both static and dynamic load. Also, additional post tension cable was installed as well as replacement of bearings carried out.


Client: Federal Ministry of Works
Contractors: Buildwell Plants and Equipment
Project start date: 2nd December, 2013
My capacity: Project Lead Engineer for Contractor

semitunde:


I'm just seeing this.

First. Concrete can burn, it just requires the right amount of heat. There's nothing that can't burn given the right amount heat.

Second. Yes, concrete can withstand heat for some time, but this also depends on the intensity and duration of the heat. In any case, tests have proven that after 2hrs of class A fire (I think, have to review my books, been a long time), concrete will start to lose its properties and hence may not protect the reinforcement embedded anymore. This means that with adequate heat, the concrete is gone. And with this, the reinforcement melts and changes arrangement and or composition, making it also susceptible to failure when loaded.

Mr Oyb your replied also gave the Festac bridge example, and he's right, but you still think the bridge is fine?


Finally, you said the wearing course just needs to be removed. What exactly do you mean by the wearing course? Do you mean the asphalt, or does this include the concrete underneath? If you correctly mean the asphalt, then I can tell you for free that the concrete may have also weakened and spalled. And if you removed the concrete, you can actually know if the reinforcement there need to be replaced or not.

oyb:


I live in festac. We had the very same thing happen there December last year. A tanker on the bridge caught fire. They have demolished an entire section of the bridge and are recasting support beams.

And yes, that is also an rc bridge

This is the first hit of a Google search for fire concrete bridge

https://www.usatoday.com/story/news/2017/03/31/atlanta-bridge-collapse-shows-how-fire-defeats-concrete-steel/99877148

http://www.notjustanotherfire.net/2017/03/31/effects-of-fire-on-concrete-structures/

oyb:


Heh. You're giving the bridge a clean of health without any testing?

The guys who designed the twin towers were also confident the structure would not fail based on their design.

oyb:
Have they tested the bridge fir structural integrity?

VanBommel:
They tried in this aspect but they should stop hiding the real figures of those who died

pcguru1:


Yeah that's quite not safe, I would never use any non token based application, I don't use use recurring bills or like to tokenize my card any app, because I don't trust banks and how they handle that information and what information is exposed to internal staffs

pcguru1:


How did he get your token to authorize the payment ? I work in that sector and the only way payment can be made without card presence is usually your token and your bank instrument or if your card has been tokenized on an application, EMV don't require token normally but since this is a Nigerian bank it means a token would have been used

resurgent2019:
There is problem in that north ooo.

But southerners must be determined to resist their radicalism. Th only thing they possess is violence and Islamic terrorism. We must match them gun for gun and terror for terror.

The state of Israel has given us a template of how to deal with Islamic aggression. We need to increase investment in mathematics and the sciences.

This uneducated idiots must be done away with at some point in the life of this nation.

God knows that if I possessed the resources, vanquishing this northerners will be my life’s mission.

May Lord Lugard rot in hell for joining the north and the south to form a failed state like Nigeria.

ritababe:


yeah he tried his best but we are playing against messi now, playing Mikel will be disastrous.

Deltayankeeboi:
Super chickens. Asoebi boys.

Imagine them celebrating a win against common iceland as if it was the world cup final match that they won.

Mediocres. Celebrating mediocrity is what they are good at.

I just can't wait for Argentina to beat and mess up the super chickens tomorrow and end all these nonsense high hopes people are having.

Permutation every world cup. I dey shame for naija.

Argentina 3 or 4 : Super chickens 1.

All of una go hail tomorrow

Seun360:


By miles.

enambobo:

you're not used to modern things. I can't help you.

Reference:


The National Stadiumin Abuja has no aesthetics whatsoever.. ..
I don't know your architectural aspective but when all you can see from the outside are the barebones and ribs of the underlying structure then you should understand that the structure was probably designed by an engineer or an architect under severe oversight which is symptomatic of the way thkngs are done in Germany. It is a poor architectural piece.

Even the all concrete Marcana built decades ago in improverished Brazil is more catching to the eye. National stadia are supposed to be total expressions of culture and vibe in appearance and appeal simply because they celebrate a country to the outside world where budgets and expense are secondary. Look at some of the stadia in South Africa. Even those privately owned where budgets, business and functionality is a priority over aesthetics. Most still manage a better smile than the Abuja edifice.

AutoReportNG:
The best so far in Nigeria?

See more pictures here...

https://www.autoreportng.com/2018/06/akwa-ibom-stadium-review-of-nigerias.html

Is04970:
What has building code got to do with ARCON?
Where are NIOB and CORBON?

frankmoney:
who designs a building ? Most architect oversee a project from start to finish , so it has everything to do with them , and while designing you have to adhere strictly to some building guidelines

SalamRushdie:
We like fooling ourselves in this country jare...the mere fact you are assumed to have won a presidential election doesn't make you president ...the only time a person can be said to be a president is if the have been sworn in and both Abiola and Kingibe never even received a certificate of return talkless of being sworn in

deomelo:


Fashola, son of the soil who lobbied Dangote and wrestled the single largest refinery in the world away from Ondo state.

lanaVello:
Where in lag

izzou:


An honor well deserved

But it took Buhari 3 years into his tenure to recognize that Abiola deserved more.

And now another 3 years into his tenure to recognize Gani?

Anyone who is wise will know this to be a pre 2019 strategy. I still love it though.

ALMUSTAQIM:
BECAUSE THEY ARE AMONG OTHERS

A. KIDNAPPERS

B. FAKES IMPORTERS

C. IPOBIAFRANS

D. HIGHLY UNDEMOCRATIC

Lexusgs430:
Is Buhari not listening to the atrocities SARS are committing?

His VP nko, why is he neglecting all the tags?

Nigeria seems on a one way ticket.......

Mayrock:
For what reason....

is high time we stop celebrating terrorism is Nigeria.....