concrete

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concrete jungle

An overcrowded, unsafe and/or crime-ridden urban environment or city, characterized by the congestion of large buildings and roads. After years living in that concrete jungle, I'm looking forward to being in a place with a bit of grass and friendly neighbors.
See also: concrete, jungle

be cast in concrete

To be firmly or permanently established; to be unalterable or not subject to change. The healthcare law looks promising, but we'll have to wait until it's cast in concrete before we know exactly what it will do.
See also: cast, concrete

cast in concrete

Firmly or permanently established; not subject to change; unalterable. The healthcare law looks promising, but we'll have to wait until it's cast in concrete before we know exactly what it will do.
See also: cast, concrete

set (something) in concrete

To establish something firmly or permanently; to make something unalterable or not subject to change. The healthcare law looks promising, but we'll have to wait until Congress sets it in concrete before we know exactly what it will do.
See also: concrete, set

be set in concrete

To be definitely and permanently decided or planned. We might get brunch next weekend, but nothing is set in concrete yet.
See also: concrete, set

set in concrete

firmly established and very difficult to change set in stone The basics of the financial plan are set in concrete.
Usage notes: sometimes used in the form written in concrete: Nothing is written in concrete – we can still make changes.
See also: concrete, set

be set in concrete

if an arrangement, a plan or a rule is set in concrete, it is completely fixed so that it cannot be changed (usually negative) We've drawn up some rough guidelines - they're by no means set in concrete.
See also: concrete, set
References in periodicals archive ?
The fibers -- made from steel, glass, polymers, asbestos and other materials--keep the concrete from crumbling and prevent any cracks that form from opening.
As scientists unravel the chemistry and physics of cements and pave the way for inventing new materials, they must find ways to inject their new ideas into the conventional concrete industry.
Yet our concrete world is crumbling from corrosion and poorly made and maintained materials.
Because we don't understand it correctly, we are spending a lot of money in maintenance and repair and replacement of concrete," says Surendra Shah, director of Northwestern University's Center for Concrete and Geomaterials in Evanston, Ill.
The recycling and reuse of concrete waste can be an effective way to achieve sustainability in the construction sector.
They usually occupy about 70% of the total volume of concrete (ACPA 2009).
This paper collates the research findings published to date regarding the use of RCA in concrete and provides a general review of its effects on concrete properties.
The physical properties of RCA influence the mix proportion and properties of concrete.
The concrete at Riverside South was apparently poured into spaces between 40 and 60 of the 80-column site between the fourth and fifth floors of the tower portion of the condominium, where work continued until October 29, resulting in another 15 stories of construction.
The bad concrete will also have to be jackhammered away and replaced with even stronger concrete, said Seinuk, referring to what is known in the industry as grout.
For this particular area of the job, the concrete was specified as being able to hold up 5,000 psi.
The wetter the mix, the faster radon diffuses through hardened concrete, explains Nielson.
But concrete can itself be a source of radon, points out a pair of researchers from the Netherlands in the same journal.
Because this material tends to contain more radium than cement, concern has been building that ash-based concrete may become an increasingly important source of indoor radon.
Read the full report: Global Concrete and Cement Market - Key Trends and Opportunities to 2017 utm_campaign=Building_Material