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Old April 6th, 2015, 08:02 AM   #8881
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06 04 2015

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Old April 6th, 2015, 03:21 PM   #8882
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Old April 6th, 2015, 05:26 PM   #8883
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https://www.flickr.com/photos/yleber...969796/sizes/l




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Old April 6th, 2015, 09:28 PM   #8884
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Old April 7th, 2015, 06:50 AM   #8885
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From South China Morning Post

I don't think this has been posted? Bad news...

Shenzhen construction on hold after alert over cheap sand in concrete
Work on highest tower suspended after report of developers using cheap sea sand in concrete

PUBLISHED : Saturday, 16 March, 2013, 12:00am
UPDATED : Saturday, 16 March, 2013, 4:57am

Several major property projects in Shenzhen - including what will be the city's highest building - have been ordered to suspend construction after CCTV reported that concrete used by some local developers was made from cheap, untreated sea sand.

More projects are likely to be affected as the Shenzhen government ordered a citywide inspection into the practice, which they said was common throughout the Pearl River Delta. Untreated sea sand contains high levels of salt and chloride that could corrode steel reinforcements, causing buildings to collapse.

The Shenzhen Housing and Construction Bureau called an emergency news conference yesterday and said it was conducting a blanket investigation into the city's concrete-mixing plants. So far they had found 15 of the 92 plants in Shenzhen using low-quality sea sand as the raw material. The concrete was sold to local real estate developers.

The official refused to disclose how many residential and commercial buildings were erected with problematic concrete. But it ordered three high-profile projects - including the 660-metre-tall Pingan Financial Centre, scheduled to be completed in 2016 - to suspend construction pending further notice. Pingan Financial Centre will be the tallest structure in Guangdong. Construction workers were still busy on the site after the Shenzhen government's press conference.

China Central Television reported on Thursday that many Shenzhen developers replaced expensive river sand with much cheaper sea sand as a building material. It named and shamed four concrete-mixing plants - including one owned by Hong Kong-listed China Resources Cement Holdings.

The report also accused the two largest sandpits in Shenzhen, which supply concrete-mixing plants, of using seawater instead of much more expensive fresh water to wash sand. It said sea sand was used in several government-funded projects, including subways. Shenzhen Metro insisted all its projects were safe and met national standards.

China Resources Cement Holdings said it had launched an investigation and no substandard products had been found.

Experts in Hong Kong said sea sand was never used in the city even though it is not banned.

"Treating the sea sand is very costly and it requires a large area to soak it in [fresh] water," said Chan Chi-ming, who is head of the department of construction at the Institute of Vocational Education. He said the soaking process was intended to remove all traces of the salt.

A professional at a Hong Kong construction company said no developer here would risk using sea sand. "If it is not treated well, the concrete will peel off the building after 10 years or so."

A spokesman for the Housing Authority said the sand used in its buildings came from crushed rocks at a quarry in the Pearl River region.

Zu Lihong, an official at the Shenzhen housing and construction bureau, admitted that the use of sea sand in construction was widespread because of a lack of river sand.

The central government - to protect the rivers that supply fresh water to Hong Kong and Macau - banned local authorities from mining river sand.

Zhu tried to play down the danger and said sea sand can be used after washing and desalting, in line with a regulation issued by the construction ministry.

The owner of a luxury flat developed by China Resources said he was worried. "These units are so expensive. How could you imagine they are using substandard material?" he said.

Kou Zuomin, a retired architect in Shenzhen, said the use of sea sand was an open secret.

"Both developers and supervisors know it but they just turn a blind eye."
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Old April 7th, 2015, 07:03 AM   #8886
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? 2013 news...
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Old April 7th, 2015, 07:05 AM   #8887
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That's old news (two years ago). I think they checked things out and found the concrete in place was of reasonable quality.
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Old April 7th, 2015, 07:17 AM   #8888
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Ah so it is, apologies, a very recent article linked to it and I'm a little sleepy this morning. "Hongqiao Airport: Where Every Flight Becomes A Red-Eye Flight."

Glad it wasn't as bad as feared!
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Old April 7th, 2015, 08:34 AM   #8889
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pheeww...gave me a scare there for a second!!!
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Old April 8th, 2015, 10:34 PM   #8890
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08.04.2015
by 没声音
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Old April 9th, 2015, 01:03 AM   #8891
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While sure, the sand article and (thankfully) past news is always good to be concerned about, one would think a high profile project like this would be doing regular, stringent concrete tests to ensure quality. If using different sand would affect longevity and potential strength as much as the article seemed to claim, you'd would think that would most certainly show up in stress tests or other really premature failings during scrutiny and thus, rejected for use on the building itself.
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Old April 9th, 2015, 01:14 PM   #8892
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I hope this tower will be 633m tall and will became the second tallest building in the world
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Old April 9th, 2015, 03:02 PM   #8893
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Old April 9th, 2015, 05:13 PM   #8894
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Quote:
Originally Posted by Ch.W View Post
08.04.2015
by 没声音
Is that a new crane coming up?

Last edited by pteranodon; April 13th, 2015 at 06:38 PM.
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Old April 9th, 2015, 08:43 PM   #8895
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Old April 9th, 2015, 10:03 PM   #8896
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del

Last edited by Mahdi Rasoul; August 14th, 2017 at 11:29 PM.
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Old April 9th, 2015, 10:16 PM   #8897
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Quote:
Originally Posted by pteranodon View Post
Is that a new crane coming?
It seems so. I will take a look for more recent pictures to clarify this question.
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Old April 10th, 2015, 06:56 AM   #8898
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It's definitely a fine building, does anybody know if the width, or how it compares with GF117, in sq footage?
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Last edited by bigreach; April 10th, 2015 at 07:02 AM.
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Old April 10th, 2015, 07:07 AM   #8899
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I believe in the future that China will be a superpower country. Look for the many supertall, there's no different with NewYork.
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Last edited by kareen21; June 17th, 2015 at 05:30 AM.
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Old April 10th, 2015, 09:20 PM   #8900
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Quote:
Originally Posted by Ch.W View Post
It seems so. I will take a look for more recent pictures to clarify this question.
perhaps a small one to take down the existing cranes?
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