Men in two special factories worked day and night to make the concrete building material for the dam.

VOA: special.2009.08.12

Workers also used more than twenty million kilograms of steel to strengthen the concrete in the dam.

VOA: special.2009.08.12

Portland cement is a material that holds together the sand and crushed stone in concrete.

VOA: special.2009.12.01

The idea is to replace some of the portland cement traditionally used in making concrete.

VOA: special.2009.12.01

They had used almost four million cubic meters of concrete in the dam.

VOA: special.2009.08.12

It is the largest single-span concrete arch bridge in the Western Hemisphere.

VOA: special.2010.10.27

Is it going to be reinforced concrete? And then you get into all kinds of things in terms of the designs of the columns and the beams and the framing of the building and the connections.

VOA: special.2011.03.28

(OMITTED) To make the film's dream world concrete, Nolan uses grand sets in six different countries.

VOA: standard.2010.07.20

It is an issue where we need to take concrete action to increase the number of women in politics and especially at decision-making levels in politics,".

VOA: standard.2009.04.05

Libyan Ambassador Ali Aujali agreed, but said the Arab world is waiting for some concrete policy changes, especially in regard to Israel's continued expansion of settlements in the West Bank.

VOA: standard.2009.04.24

French Prime Minister Fran?ois Fillon says it is the duty of the G-20 group of the world's largest developed and emerging economies next month to achieve concrete results in resolving the global economic crisis.

VOA: standard.2009.03.24

It's really been in the wake of the al-Mabhouh thing that the talk has really translated into concrete action and some of these governments have really started to get very tough on RIM, the company behind BlackBerry.

VOA: standard.2010.08.11