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2. Quikrete to take Summit Materials private in deal valued at ...

   www.aol.com/quikrete-buy-summit-materials-deal...

   Privately held Quikrete approached Summit with an acquisition offer in October, Reuters had reported. ... The concrete maker's $52.50 per share offer represents an about 29.2% premium to Summit's ...

3. Oldcastle Materials - Wikipedia

   en.wikipedia.org/wiki/Oldcastle_Materials

   Oldcastle Materials Inc. is a supplier of asphalt, concrete, and other building materials, and also offers construction and paving services. The Atlanta-based company is a subsidiary of CRH plc, a publicly traded international group of diversified building materials businesses, [2] [3] and has approximately 18,000 employees at 1,200 locations, as of March 2018.

4. Portland cement - Wikipedia

   en.wikipedia.org/wiki/Portland_cement

   The most common use for portland cement is in the production of concrete. [17] Concrete is a composite material consisting of aggregate (gravel and sand), cement, and water. As a construction material, concrete can be cast in almost any shape desired, and once hardened, can become a structural (load bearing) element.

5. 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]

6. Scientists think they know why Stonehenge was rebuilt ...

   www.aol.com/news/stonehenge-may-rebuilt-unify...

   New research has shed light on how Stonehenge may have served to unify Britain’s early farmers as newcomers from Europe began to arrive thousands of years ago.

7. Dozens of luxury condos and hotels in Florida are sinking ...

   www.aol.com/dozens-luxury-condos-hotels-florida...

   Dozens of luxury condos, hotels and other buildings in southeast Florida are sinking at a surprising rate, researchers reported in a recent study. The study, led by scientists at the University of ...