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2. Concrete slab - Wikipedia

   en.wikipedia.org/wiki/Concrete_slab

   Typically concrete slabs perform better than implied by their R-value. [5] The R-value does not consider thermal mass, since it is tested under constant temperature conditions. Thus, when a concrete slab is subjected to fluctuating temperatures, it will respond more slowly to these changes and in many cases increase the efficiency of a building ...

3. Road surface - Wikipedia

   en.wikipedia.org/wiki/Road_surface

   Concrete roadway in San Jose, California A concrete road in Ewing, New Jersey. Concrete surfaces (specifically, Portland cement concrete) are created using a concrete mix of Portland cement, coarse aggregate, sand, and water. In virtually all modern mixes there will also be various admixtures added to increase workability, reduce the required ...

4. Cast-in-place concrete - Wikipedia

   en.wikipedia.org/wiki/Cast-in-place_concrete

   Cast-in-place concrete or Cast-in-situ concrete is a technology of construction of buildings where walls and slabs of the buildings are cast at the site in formwork. [1] This differs from precast concrete technology where slabs are cast elsewhere and then brought to the construction site and assembled. [ 2 ]

5. Types of concrete - Wikipedia

   en.wikipedia.org/wiki/Types_of_concrete

   Regular concrete is the lay term for concrete that is produced by following the mixing instructions that are commonly published on packets of cement, typically using sand or other common material as the aggregate, and often mixed in improvised containers. The ingredients in any particular mix depends on the nature of the application.

6. Hollow-core slab - Wikipedia

   en.wikipedia.org/wiki/Hollow-core_slab

   The precast concrete slab has tubular voids extending the full length of the slab, typically with a diameter equal to the 2/3–3/4 the thickness of the slab. This makes the slab much lighter than a massive solid concrete floor slab of equal thickness or strength. The reduced weight also lowers material and transportation costs.

7. After years of construction, new Wake County highway goes ...

   www.aol.com/years-construction-wake-county...

   350,000: Square yards of concrete used to pave the eastern 8.6 miles. A concrete approach slab for a bridge of the N.C. 540 Triangle Expressway, which will be completed this summer.