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2. Ready-mix concrete - Wikipedia

   en.wikipedia.org/wiki/Ready-mix_concrete

   Concrete has a limited lifespan between batching / mixing and curing. This means that ready-mixed concrete should be placed within 30 to 45 minutes of the batching process to hold slump and mix design specifications in the US, [15] though in the UK, environmental and material factors, plus in-transit mixing, allow for up two hours to elapse. [16]

3. Concrete - Wikipedia

   en.wikipedia.org/wiki/Concrete

   Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]

4. ZIP Code Tabulation Area - Wikipedia

   en.wikipedia.org/wiki/ZIP_Code_Tabulation_Area

   ZCTAs are generalized area representations of the United States Postal Service (USPS) ZIP code service areas, but are not the same as ZIP codes. Individual USPS ZIP codes can cross state , place, county , census tract , census block group and census block boundaries, so the Census Bureau asserts that "there is no correlation between ZIP codes ...

5. The Most Expensive ZIP Code in Every State - AOL

   www.aol.com/finance/most-expensive-zip-code...

   Do you think you could name the city associated with the most expensive ZIP code in your state? While some individuals could do this, others might be less familiar with their state's wealthiest ...

6. Precast concrete - Wikipedia

   en.wikipedia.org/wiki/Precast_concrete

   A precast concrete walled house under construction An example of low-quality precast concrete with exposed dowels, connectors, indications of cracks, and malformations, even during its installation, Barangay Lantic, Carmona, Cavite, Philippines Interior view of the walls, supports, and roof of a precast commercial shop in Williston, North Dakota, US.

7. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.