Frank Roethel runs his hands along the boathouse’s interior walls. The exposed brick is smooth and cool to the touch; in contrast to the outside cratered from nearly 30 years of wind, rain and snow.
Concrete is the most widely used construction material in the world. One of the key ingredients in concrete is Portland cement. The American Concrete Institute explains that Portland cement is a ...
On one hand, with the retirement of coal-fired power plants the supply of fly ash has decreased. Fly ash is one of the most popular supplemental cementitious materials (SCM) in the industry, so it’s ...
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