In Portland cement concrete (and other hydraulic cement concretes), when the aggregate is mixed together with the dry cement and water, they form a fluid mass that is easily molded into shape. The cement reacts chemically with the water and other ingredients to form a hard matrix which binds all the materials together into a durable stone-like material that has many uses. Often, additives (such as pozzolans or superplasticizers) are included in the mixture to improve the physical properties of the wet mix or the finished material. Most concrete is poured with reinforcing materials (such as rebar) embedded to provide tensile strength, yielding reinforced concrete.
Abstract and concrete are classifications that denote whether a term describes an object with a physical referent or one with no physical referents. They are most commonly used in philosophy and semantics. Abstract objects are sometimes called abstracta (sing. abstractum) and concrete objects are sometimes called concreta (sing. concretum). An abstract object is an object which does not exist at any particular time or place, but rather exists as a type of thing, i.e., an idea, or abstraction. The term 'abstract object' is said to have been coined by Willard Van Orman Quine. The study of abstract objects is called abstract object theory.
The type-token distinction identifies physical objects that are tokens of a particular type of thing. The "type" that it is a part of, is in itself an abstract object. The abstract-concrete distinction is often introduced and initially understood in terms of paradigmatic examples of objects of each kind:
An audio engineer works on the recording, manipulation, mixing, reproduction, and reinforcement of sound. Audio engineers work on the "...technical aspect of recording—the placing of microphones, the turning of pre-amp knobs, the setting of levels. The physical recording of any project is done by an engineer... the nuts and bolts." Many audio engineers creatively use technologies to produce sound for film, radio, television, music, electronic products and computer games. Audio engineers also set up and operate sound reinforcement systems for concert, corporate, theatre, sporting and other events.
Audio engineering concerns the creative and practical aspects of sounds including speech and music, as well as the development of new audio technologies and advancing scientific understanding of audible sound.
The Cal Poly Pomona College of Engineering is the engineering college at California State Polytechnic University, Pomona (Cal Poly Pomona) located in Pomona, California, United States. With over 5,600 undergraduate students (as of fall 2015), it is the largest engineering college in Southern California, the second largest college of engineering in the California State University system, and the seventeenth largest engineering college in the United States. In 2013 U.S. News & World Report ranks Cal Poly Pomona's undergraduate program 14th in the nation (for Master's-granting universities), and mentions that Cal Poly Pomona "has one of the top ranked engineering programs, and graduates roughly 1 of every 14 engineers in the state of California."
Because of the hands-on approach to academics and undergraduate focus, the college of engineering at Cal Poly Pomona is among the most selective engineering colleges in the nation and most of its departments are currently declared impacted (hold stringent standards for admissions). For fall 2015, the college admitted 45.3 percent of its total freshmen applicants who held an average unweighted GPA of 3.72 (out of 4.00) and SATs of 1178 (out of 1600), making the college admissions process statistically comparable to the University of California campuses at Davis, Irvine, and Santa Barbara.
CHAMPAIGN — Not unlike humans, concrete needs a coat during the winter. Because concrete doesn’t cure well below 45 degrees, the Illinois Department of Transportation had to use thermal blankets and heaters when it poured concrete on the bridges near the Interstate 57/74 interchange ... “We had to go above and beyond to protect the concrete.”.
Decatur is using its eminent domain powers to take portions of their properties on the west side of Shady Grove to widen the road and put a concrete ditch in place ... However, CityEngineerCarlPrewitt said Friday, “In my opinion, it would cost a lot more to build a covered ditch than the concrete ditch even if they donated the land.”.
Parks, an Atchison resident, chose to major in engineering because he enjoys the creative process and likes designing and producing things ... On his bucket list for his future in the Wichita StateCollege of Engineering, Parks would like to build a concrete canoe and get a hammock.
"ConcreteCowboy". Netflix Every week, the streaming search engine Reelgood compiles for Insider a list of which movies have been most prominent on Netflix's daily top-10 lists that week ... The Netflix drama "Concrete Cowboy," starring Idris Elba, was the streamer's most popular movie this week.
THE construction firms that won contracts for road projects in towns of Cebu Province will explain before Gov ...As of March 19, 2021, the ProvincialEngineering’s Office reported that the Capitol had spent P4.3 billion on road concreting and improvement projects in provincial and barangay roads in seven legislative districts. (ANV / KAL) .
used Building 103 to build engines for tanks until 1953... By that time, there was a complex matrix of underground drain lines beneath Building 103, connecting it to tanks where thousands of gallons of TCE were stored, and to two concrete-lined ponds where the used chemical was treated ... The work area is underlain by a 9-inch to 23-inch concrete slab.
On Thursday, that idea got a bit more concrete when Stephen Sewell, an engineer with PalmerEngineering, presented finds and proposed plans made from a recent traffic study ... Sewell said his engineering firm studied traffic counts on Winchester and adjacent streets, along with travel times to get from point A to point B and crash analyses.
As crews reached the lower portion of the concrete structure, they sped up the removal process by bringing in explosives, using a series of blasts to finish off the dam before then completely engineering a revitalization of the river habitat that had been lost behind the dam for nearly 90 years.
Station 31, a concrete structure with an L-Street facing mural, is located at 4702 S. 25th St.�It houses Engine 31, Truck 31 and Medic 31 ... It was replaced in the same spot with a one-story concrete building that opened in 1947 as Station 5 ... used in the days before fire engines.
A Wichita engineering firm was awarded a contract Tuesday to design a replacement for a concrete box bridge on 11th Avenue near Cochran Street... The bridge over the East Side Drain ditch is a reinforced concrete box culvert with corrugated metal pipes on each ...