concrete article
71One World Trade Center — Freedom Tower redirects here. For other uses, see Freedom Tower (disambiguation). For the building complex destroyed in the September 11 attacks, see World Trade Center. For the specific WTC building formerly known as One World Trade Center, see… …
72Ontario Highway 401 — Highway 401 redirects here. For other uses, see List of highways numbered 401 …
73Corrosion — v · d · e Materials failure modes Buckling · …
74Tunnel — This article is about underground passages. For other uses, see Tunnel (disambiguation). Underground tunnel for heatpipes between Rigshospitalet and Amagerværket in Denmark …
75Road surface — A road in the process of being resurfaced Road surface (British English) or pavement (American English) is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past… …
76Railroad tie — While wooden ties dominate North American railways, concrete is widely used in other parts of the world. A railroad tie/railway tie (North America), or railway sleeper (Europe) is a rectangular item used to support the rails in railroad tracks.… …
77Engineering Projects — ▪ 1995 Introduction BRIDGES Notable Engineering Projects(For Notable Engineering Projects in work, see Table (Notable Engineering Projects).) As the decade of the 1990s reached its midpoint, the limits to bridge design were being… …
78Abstraction — This article is about the concept of abstraction in general. For other uses, see abstraction (disambiguation). Abstraction is a process by which higher concepts are derived from the usage and classification of literal ( real or concrete )… …
79Grand Coulee Dam — This article is about the dam itself. For the song by Woody Guthrie, see Grand Coulee Dam (song). Grand Coulee Dam …
80Big Dig (Boston, Massachusetts) — The Big Dig is the unofficial name of the Central Artery/Tunnel Project (CA/T), a megaproject that rerouted the Central Artery (Interstate 93), the chief highway through the heart of Boston, Massachusetts, into a 3.5 mile (5.6 km) tunnel under… …
