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.
9, 2021 when contractor Judy Construction and GRWEngineering alerted GMWSS officials of concerns with construction, particularly the concrete foundation. Up to that point some “$5-to-$6 million of concrete” had been poured at the site, but apparently an engineering miscalculation ...
According to engineer Ajith, who was present at the site, the accident happened when the scaffolding got bent when the concrete works were going on and the slab came down due to the weight of the concrete. Most of the injured workers were guest workers and also included a woman site engineer hailing from Omassery in the district.
Salvatore possessed a strong entrepreneurial spirit and saw an opportunity in the early 1960s to introduce precast concrete products into the New England market ... He successfully introduced precast concrete manholes into engineering specifications throughout New England dominating the New England market over the ensuing 20 years.
Substantial work is needed to repair a downtown Keene parking garage where, on two occasions, pieces of the concrete ceiling have fallen onto cars parked inside, according to the city engineer ... concrete and replace light fixtures, CityEngineerDonald Lussier said Thursday.
Environmental protection a must in low-carbon energy ventures overseas ... When the engineers were designing the dam, they chose to build an asphalt concrete core rock-fill dam instead of a concrete gravity dam, which saved the use of 1 million cubic meters of concrete and 30,000 metric tons of steel, reducing carbon emissions of about 530,000 tons ... .
When awarding bids for public projects, the Lorain EngineeringDepartment and other departments typically add 10 percent to the bid amount to cover unexpected costs. The project is a complete reconstruction of that concrete roadway, not just patching it, said VeronicaNewsome, civil engineer in the city Engineering Department.
SWK), the world's largest, fastest growing and most innovative tools and storage company, today announced it will debut several new products supporting the concrete and construction industries from the World of Concrete® TradeShow in Las Vegas, taking place from January 18-20 ... †These blades use manufactured diamonds engineered for cutting.
After reviewing those plans, Dawn Lehman, a structural and civil engineer, said the issues in the garage could cause real structural damage ... An engineering report written several years before the collapse noted, “failed waterproofing is causing major structural damage to the concrete structural slab…”.
These OEM parts are designed specifically for McNeilus products by a team of engineers focused solely on providing solutions for the concrete and refuse collection industries ... McNeilus Truck and Manufacturing, Inc., an Oshkosh Corporation company, is an industry leading manufacturer of refuse truck bodies and concrete mixers.
John Grinvalds Daily Sun Staff Writer... 12 meeting ... “That contract went up,” Tobias Tempelmeyer, city administrator, said ... The board also heard reports from the city administrator, engineer and water superintendent ... People are also reading… ... JamesBurroughs, city engineer, said concrete construction on Lincoln and 4th Street will go out next week.