Early this month, the Expo site was a huge muddy field filled with workers, cranes, piles of building materials and heaps of construction debris.

本月初，世博会场还是一个巨大的泥泞土地，到处是工人、起重机以及成堆的建筑材料和大量的建筑垃圾。

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Although CRH, a maker of building materials, is heavily exposed to the construction downturn in America and Europe it has joint ventures in Turkey, China and India and a strong balance-sheet.

而另一家生产建筑原材料的公司CRH，尽管面临着在美国和欧洲的形势严峻的建筑业萧条，但其在土耳其，中国和印度拥有合资企业并且拥有一份健全的资产负债表。

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This second problem "is the construction quality of the building itself - its structure is not completely sound or its materials are not very strong, which is possible," Mr. Ma said.

第二个问题是因为“建筑本身的质量差——可能结构不是很安全，或者材料不结识。”马先生说。

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As housing starts surged at the end of 2012 so too did demand for Spangler's building and construction materials supplier National Gypsum's products.

FORBES: Clemmie Spangler, Jr.

Industry leaders also worry about the future impact of cutbacks to public construction spending and construction materials costs that have been outstripping building bid prices.

FORBES: Plenty To Worry About In Construction

The man in charge of the investigation, Mainuddin Khandker, told BBC Bangla on Wednesday that "extremely poor" construction materials were used in the building and said the report identified five causes of the collapse.

BBC: Bangladesh factory collapse probe uncovers abuses