Overcast Concrete

Overcast

Overcast or overcast weather, as defined by the World Meteorological Organization, is the meteorological condition of clouds obscuring at least 95% of the sky. However, the total cloud cover must not be entirely due to obscuring phenomena near the surface, such as fog.

Concrete

Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid. It is the second-most-used substance, the most widely used building material, and the most-manufactured material in the world. Cement-bound concrete differs from the less rigid, less durable asphaltic concrete, which has a bituminous binder.

overcast

Noun

1. A cloud covering all of the sky from horizon to horizon.
2. An outcast.

Adjective

1. Covered with clouds; overshadowed; darkened; more than 90% covered by clouds.
2. In a state of depression; gloomy; melancholy.

concrete

Adjective

1. Real, actual, tangible.
2. Analogous to the categories of algebraic objects which category theory was created to generalize, in the sense of having objects which can be thought of as sets equipped with some additional structure. Formally, equipped with a faithful functor to the category of sets.

Noun

1. A building material created by mixing cement, water, and aggregate such as gravel and sand.
2. Such a material whose cement is Portland cement or a similar limestone derivative.