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.
Army Corps of Engineers, which is leading the second phase of the cleanup, estimates that as many as 700,000 tons of ash, concrete slabs and metal scraps will need to be hauled out - about half the amount of debris removed from the World Trade Center site after 9/11.
Concrete research gets caricatured as the epitome of dull – until the roof falls in ... One dream is to make concrete self-healing ... Pliny the Elder claimed not only that the Roman pozzolanic concrete was “impregnable to the waves” – it will harden underwater, making it ideal for harbour engineering – but also that it is “every day stronger”.
World’s largest 3D concrete printed campus, set to complete by November. The construction work of world’s largest 3D concrete printed campus, which started in April, is likely to be completed by November ... The 3D printable concrete used was specifically engineered to suit the climatic conditions of Chandigarh.
The engineer’s recommendation was to change the slab foundation of the facility to a “micropile” one, created by drilling dozens of holes into bedrock and filling them with concrete to allow the structure to bridge any sinkhole that may open up in the future. “I am not an engineer so I equate this to stilts,” Souza said.
The lander, as expected, did not reply ... But that was wishful thinking ... Sulfur is a useful element in technologies like solar cells and batteries, as well as in fertilizer and concrete. Before it went to sleep earlier this month, Vikram made a small final move, firing its engines to rise about 16 inches above the surface before softly landing again ... 2 ... .
A Kings Mountain convenience center has temporarily reopened following its closure in August over safety concerns ... 10 due to safety concerns related to the structural integrity of the concrete driving and unloading areas. The engineered cost estimate for demolishing and rebuilding the site is approximately $1.1 million.
EngineeringLicense... Contreras is a project engineer in GMB’s Structural/Marine Engineering Group, where she provides design using post-tensioned concrete as well as conventional wood framing and masonry, conducts structural conditions inspections and evaluations, and prepares long-term reserve studies.
This first step, called “potholing,” involves drilling 12-inch-wide holes — each about five feet deep — at intervals along the street ...People are also reading… ... The dirt is suctioned out and stored in a truck-mounted container while engineers look under the ground. Then the hole is backfilled with a concrete slurry and the pavement patched up ... .
It identifies some concrete mechanisms by which they can work together to integrate the supply chains ... 'On some of the concrete initiatives, I think the GE engine deal has received some of the most attention in the press,' Iyer said ... The deal provides India access to jet engine ...
"The loss of a formerly-leading and user-friendly game engine to the darker forces that negatively impact so much of the gaming industry has left us dismayed to put it mildly ... More concretely, Re-Logic says it will donate $100,000 each to the open source GodotEngine and FNA, with $1,000 monthly donations to both continuing in seeming perpetuity.
There are issues with the concrete supply, too. New Civil Engineer magazine has reported that builders blame the crisis-hit HS2 rail line and Hinkley Point C, the nuclear reactors in Somerset, for shortages ... include steel lintels, concrete roof tiles paint, plaster and cabling.
In all probability, the company could bring out a new Pulsar in the 400cc engine displacement category. Bajaj already retails the Dominar 400 in this segment, but it is unlikely to borrow the engine from the power cruiser since it features the older generation 373cc liquid-cooled mill sourced from KTM.Also Read.
Considered a marvel of modern engineering, Pier 57 is built on giant floating concrete blocks, or “caissons,” instead of conventional piles ... Pier 57 is considered an engineering marvel due to its innovative use of three hollow concrete caissons to support the main structure, rather than traditional piles.