• 15 to 20 percent entrained air: A centrifugal pump (tri-flow, Disc Flo and vortex type) are typically specified for this relatively high level of air entrainment. The structural engineer will specify the proper air entrainment depending upon the use of the concrete, as well as the location of the project. It is reported that, maximum flexural strength can be achieved even with air contant of 4%. During freeze-thaw cycles, the water occupying those pores expands and creates stresses which lead to tiny cracks. Chemistry To carry (suspended particles, for example) along in a current or into the vapor phase. This needs to be taken into account when batching and mixing. For every 1% of additional air entrained, concrete strength will fall by around 5%. Eventually the excess water evaporates, leaving little pores in its place. Das Substantiv Englische Grammatik. Air Entrainment in Steep Chute Flows. The wordgames anagrams, crossword, Lettris and Boggle are provided by Memodata. With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. 'All Intensive Purposes' or 'All Intents and Purposes'? Air entrainment reduces the density of the mix and increases yield. Further, the presence of air within the boundary layer reduces the shear stress between the flow layers and hence the shear force .Also it may prevent or reduce the damage caused by cavitation . Interfacial aeration is defined as the air entrainment process along an air–water interface, usually parallel to the flow direction. Explanation of air-entraining agent Flooding and Entrainment in a Distillation Tray. The air bubbles are created during mixing of the plastic (flowable, not hardened) concrete, and most of them survive to be part of the hardened concrete. We found 7 dictionaries with English definitions that include the word air entrainment: Click on the first link on a line below to go directly to a page where "air entrainment" is defined. In hydraulic structures, free-surface aeration is commonly observed: i.e., the white waters. This equation is unique as it relates flow energy with kinetic energy and potential energy. Look it up now! 2. Privacy policy This is critical because the re-entrainment evaluation looks at onsite impacts where exhaust air can be pulled back into a building (e.g., at fresh air intake units), typically located on the sides or roofs of buildings. What does AIR ENTRAINMENT mean? Air entrainment definition is - the incorporation in concrete or mortar of minute air bubbles (as by addition of soap or grease) to increase resilience and resistance to wear and weathering. See more. Fluid or Air Entrainment. Air Entrainment Mechanisms from Artificial Supercavities: Insight based on numerical simulations Michael P. Kinzel Jules W. Lindau Robert F. Kunz Penn State University Applied Research Laboratory State College, PA, USA ABSTRACT Using multiphase computational simulations based on the Navier-Stokes equations, we examine the internal gaseous flows of artificially ventilated supercavities. Air entrainment is the intentional creation of tiny air bubbles in concrete. Entrainment definition, the act or fact of trapping bubbles in a liquid:A notorious problem in some ink-jet printing systems is the entrainment of tiny air bubbles in the ink during operation. I personally have been conducting my own back yard testing for more than a year on this very topic.  |  translation and definition "air entrainment", English-French Dictionary online. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Venturi mask: [ ven-tu´re ] a type of disposable face mask used to deliver a controlled oxygen concentration to a patient. 'Nip it in the butt' or 'Nip it in the bud'? Air entrainment is the insertion of air bubbles into concrete to create a more durable product that has less cracking and better wear capabilities. Definition of entrainment in the Definitions.net dictionary. Letters must be adjacent and longer words score better. Some pump designs that use vortex impellers, recessed impellers, separation chambers or air escapes can handle air entrainment up to 24 percent. The flow of 100 per cent oxygen through the mask draws in a controlled amount of room air (21 per cent oxygen). Mean air content. Air-entraining cements are made by the addition on grinding of a small amount, about 0.05 percent, of an organic agent that causes the entrainment of very fine air bubbles in a concrete. In hydraulic engineering, air bubble entrainment is defined as the entrapment of air bubbles and pockets that are advected within the turbulent flow. Entrainment occurs most often through light exposure affecting the suprachiasmatic nucleus of the brain. Language: English. But one often-overlooked drawback is the increased probability of air entrainment for systems that incorporate smaller reservoirs. Look it up now! Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Air entrainment admixture quantities required to obtain a specific finished air content for mix designs are based on a number of variables including size of aggregate, fineness and quantity of cement and use of SCMs such as fly ash and silica fume. It also is applied in the process of delivering aerosol treatments with medications. Hubert Chanson M.E., ENSHM Grenoble, INSTN (Saclay), Ph.D. ○   Lettris Air-entrained concrete definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. (See also oxygen therapy .) air entrainment: Luftporenbildung {f} tech. Key words: stepped chute, air-entrainment, air-water flow properties, macro-roughness elements, skimming flow. Air entrainment Air entrainment is the intentional creation of tiny air bubbles in concrete. Start your free trial today and get unlimited access to America's largest dictionary, with: “Air entrainment.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20entrainment. The bubbles are introduced into the concrete by the addition to the mix of an air entraining agent, a surfactant (surface-active substance, a type of chemical that includes detergents). Definition of Air Entrainment in Construction. Contact Us n a low-density type of concrete throughout which small air bubbles are dispersed in order to increase its frost resistance: used for making roads. The influence of an air-entraining admixture and a superplasticizer on the formation and behaviour of air bubbles in a self-compacting concrete mix are analysed in this paper. Physics concepts can go in one ear and out the other so we've added a few more definitions of it to help it sink in. Air entrainment is the process where many small air bubbles are distibuted into concrete and become part of the matrix that binds the aggregate together in the hardened concrete. Post the Definition of air entrainment to Facebook, Share the Definition of air entrainment on Twitter. Continuous separation is accomplished by air entrainment, buoyancy and interior baffling." Definition of Air entrainment. English thesaurus is mainly derived from The Integral Dictionary (TID). These air bubbles are dispersed throughout the hardened cement paste but are not, by definition… an oxygen delivery device in which air is entrained proportional to oxygen flow for a fixed oxygen concentration delivered to the patient. Air entrainment — how it happens, how to avoid it. Examples of localised aeration include air entrainment by plunging water jet and at hydraulic jump. 2. air entrainment meter: Luftporengehaltsprüfer {m} air-oxygen blenders definition. entrainment Bedeutung, Definition entrainment: 1. the process of making something part of a liquid or flow of something and carrying it along: 2…. Air entrainment is the intentional creation of tiny air bubbles in concrete.The bubbles are introduced into the concrete by the addition to the mix of an air entraining agent, a surfactant (surface-active substance, a type of chemical that includes detergents). entraînement de l'air. UL's Firefighter Safety Research Institute has conducted an extensive Air Entrainment Study to evaluate the influence of nozzles and their ability to influence the flow path during a fire. What does entrainment mean? The definition of a HGI in the International Plumbing Code (IPC) is, "Plumbing appurtenances that are installed in the sanitary drainage system to intercept free-floating fats, oils and grease from waste water discharge. Giga-fren. Meaning of entrainment. Get XML access to reach the best products. Water beyond that is surplus and is used to make the plastic concrete more workable or flowable. English Encyclopedia is licensed by Wikipedia (GNU). The benefits of smaller machinery are obvious: economy of materials, less energy consumption, less square-footage required. trains 1. Continuous separation is accomplished by air entrainment, buoyancy and interior baffling." Test your knowledge - and maybe learn something along the way. Duration: 1 minute. Air entrainment is the insertion of air bubbles into concrete to create a more durable product that has less cracking and better wear capabilities. The bubbles contribute to workability by acting as a sort of lubricant for all the aggregates and large particles in a concrete mix. Learn more. 2. • Above 20 percent entrained air: A self-priming pump is typically specified when entrained-air levels rise above 20 percent. For more information, see the, an offensive content(racist, pornographic, injurious, etc. springer. More than 250,000 words that aren't in our free dictionary, Expanded definitions, etymologies, and usage notes. Air entrainment — how it happens, how to avoid it. While hardened concrete appears solid, it is porous, having small capillaries resulting from the evaporation of water beyond that required for the hydration reaction. This increases the resistance of the concrete to freeze-thaw damage in cold climates.… Read More Source: AIChE.  |  entrainment definition: 1. the process of making something part of a liquid or flow of something and carrying it along: 2…. Entrainment is a phenomenon of the atmosphere which occurs when a turbulent flow captures a non-turbulent flow. Air entrainment has now been an accepted fact in concrete technology for more than 45 years. air-to-oxygen mix ratio definition . These cracks allow more water into the concrete and the cracks enlarge. Looking for air-entraining agent? ), http://www.uq.edu.au/~e2hchans/reprints/book2.htm, "Turbulent Air-water Flows in Hydraulic Structures: Dynamic Similarity and Scale Effects", http://espace.library.uq.edu.au/view/UQ:171996, http://en.wikipedia.org/w/index.php?title=Air_entrainment&oldid=500051634. air-entrainment mask definition. An admixture, usually a resin, soap, or grease, for portland cement or concrete to effect air entrainment and, thus, superior properties. Skill Level: Basic. By definition, entrainment is a form of the verb, entrain, which is fluid that is swept along into an existing moving flow. Type: Academy Video. In addition, it can reset the timing of sleep, moving it slightly earlier. Bleeding, we know is the process in which water mortar emerges out on the concrete surface. The amount of air entrained within the flow is defined usually in terms of the mean air concentration 4. Air entraining was introduced in the 1930s and most modern concrete, especially if subjected to freezing temperatures, is air-entrained. Company Information What made you want to look up air entrainment? See if you can get into the grid Hall of Fame ! Define air-entrained concrete. Each square carries a letter. From the mo Change the target language to find translations. It is typically used to refer to the capture of a wind flow of high moisture content, or in the case of tropical cyclones, the capture of drier air.. Detrainment is the opposite effect, when the air from a convective cloud, usually at its top, is injected in the environment. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares. ○   Wildcard, crossword These air bubbles are dispersed throughout the hardened cement paste but are not, by definition, part of the paste (Dolch 1984). Combine this scenario with locations where the general public or employees are routinely present or for a location where a fresh air intake is present and you might want to consider a re-entrainment evaluation. Get XML access to fix the meaning of your metadata. Upon awakening, morning sunlight can have a profound impact to begin the process of sustained wakefulness and end the period of sleep. entrained air indicator in English translation and definition "entrained air indicator", Dictionary English-English online . The benefits of smaller machinery are obvious: economy of materials, less energy consumption, less square-footage required. Accessed 18 Jan. 2021. Air entrainment is the intentional creation of tiny air bubbles in concrete. entrained air indicator. Definition von entrainment im Englisch Englisch wörterbuch Any of several processes in which a solid or liquid is put into motion by a fluid . Copy to clipboard; Details / edit; Termium. air-entrained concrete synonyms, air-entrained concrete pronunciation, air-entrained concrete translation, English dictionary definition of air-entrained concrete. Most concrete has a w/c of 0.45 to 0.60, which means there is substantial excess water that will not react with cement. Air-entrained concrete definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. ○   Anagrams Ing., MIEAust., MIAHR, in Air Bubble Entrainment in Free-Surface Turbulent Shear Flows, 1996. A concrete maker introduces the bubbles by adding to the mix an air entraining agent, a surfactant (surface-active substance, a type of chemical that includes detergents). Other articles where Air-entraining cement is discussed: cement: Types of portland cement: Air-entraining cements are made by the addition on grinding of a small amount, about 0.05 percent, of an organic agent that causes the entrainment of very fine air bubbles in a concrete. Delivered to your inbox! See more. Learn more. Entrain definition is - to draw along with or after oneself. The air entrainment in a free surface mainly results from the development of small turbulent structures in the air-water free surface, which have the capacity to trap air carrying it to the core of the flow. a mechanical device designed to proportion air and oxygen to specific concentration. Learn a new word every day. All rights reserved. How to use entrain in a sentence. Air entrainment is the intentional creation of tiny air bubbles in concrete. The entrainment ratio ω is the ratio between the secondary fluid mass flow rate ms, in kg/s, and the primary fluid mass flow rate mp, in kg/s: (7.11)ω = ms mp. Please tell us where you read or heard it (including the quote, if possible). [French entrainer, from Old French : en-, in; see en-1 + trainer, to drag; see train.] The failure of reinforced concrete is most often due to this cycle, which is accelerated by moisture reaching the reinforcing steel. Replacement of cement by up to 35% fly ash and 10% silica fume indicated enhanced frost resistance, without any air-entrainment. entrainment definition: 1. the process of making something part of a liquid or flow of something and carrying it along: 2….  | Last modifications, Copyright © 2012 sensagent Corporation: Online Encyclopedia, Thesaurus, Dictionary definitions and more. Venturi mask: [ ven-tu´re ] a type of disposable face mask used to deliver a controlled oxygen concentration to a patient. These are larger bubbles, and are typically less evenly distributed than entrained air. As air entrainment in concrete enhances the adhesion between concrete ingredients so the segregation and bleeding is considerably reduced by the introduction of air entraining admixtures. Bubbles are entrained locally at the intersection of the impinging jet with the surrounding waters. Ro, Cookies help us deliver our services. This evaluation is especially You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary. Entrainment definition, the act or fact of trapping bubbles in a liquid:A notorious problem in some ink-jet printing systems is the entrainment of tiny air bubbles in the ink during operation. It also is applied in the process of delivering aerosol treatments with medications. It is typically used to refer to the capture of a wind flow of high moisture content, or in the case of tropical cyclones, the capture of drier air.. Detrainment is the opposite effect, when the air from a convective cloud, usually at its top, is injected in the environment. How to use air entrainment in a sentence. The air bubble can be compressed a little, and so the bubbles act to reduce or absorb stresses from freezing. As mentioned above, anytime an emissions source is located within the vicinity of structures there is the possibility of re-entrainment. Air entrainment admixture quantities required to obtain a specific finished air content for mix designs are based on a number of variables including size of aggregate, fineness and quantity of cement and use of SCMs such as fly ash and silica fume. Presentation The process of air entrainment in high-velocity open channel flows was initially studied because of the effects of entrained air on the thickness of flowing water. Entrainment is a phenomenon of the atmosphere which occurs when a turbulent flow captures a non-turbulent flow. The air bubbles are typically 10 to 500 micrometres in diameter (0.0004 to 0.02 in) and are closely spaced. snow entrainment [esp. In addition to entrained air, hardened concrete also contains entrapped air. A water:cement ratio (w/c) of approximately 0.25 (this means 25 parts water for every 100 parts cement) is required for all the cement particles to hydrate. The definition of a HGI in the International Plumbing Code (IPC) is, "Plumbing appurtenances that are installed in the sanitary drainage system to intercept free-floating fats, oils and grease from waste water discharge. Definition of Air Entrainment in Construction. Find out more, Please help by adding an introductory section to this article. I personally have been conducting my own back yard testing for more than a year on this very topic. Steel expands when it rusts, and these forces create even more cracks, letting in more water. It may not have been reviewed by professional editors (see full disclaimer). Flooding occurs when the froth level reaches the tray above. The bubbles are introduced into the concrete by the addition to the mix of an air entraining agent, a surfactant (surface-active substance, a type of chemical that includes detergents). Commonly available masks deliver 24, 28, 31, 35, or 40 per cent oxygen. ○   Boggle. Entrapped air is considered to not make a positive contribution to durability and is undesirable though not entirely avoidable. To pull or draw along after itself. Commonly available masks deliver 24, 28, 31, 35, or 40 per cent oxygen. Air Entrainment F1OW Field Induced by a Pool Fire X. C. ZHOU and J. P. GORE* llrermal Sciencesand PmptdsionCentec SchoolofMechanicalEngineering,PurdueUniversity, WestLafayette,IN 47907 A laser Doppler velocimeter (LDV) was used in conjunction with a quiescently seeded ambient enclosure to Most English definitions are provided by WordNet . Air-entrainment problem in self-compacting concrete/Oro isiurbimo i savaime tankejanti betona problema The intersecting perimeter is a singularity in terms of both air entrainment and momentum exchange, and the air is entrapped at the discontinuity between the impinging jet flow and the receiving pool of water. (Cant. Air entrained around a rotating wheel forms a barrier that impedes fluid delivery. Air entrainment and concrete Some things every contractor should know about a combination that assures longer-lasting and more attractive concrete This photomicrograph of air entrained plastic concrete suggests how minute bubbles of air function as … Definition (britisch) air: Definition (amerikanisch) air, entrainment: Thesaurus, Synonyme, Antonyme air, entrainment: Etymology air: die Luftmitführung. General (2 matching dictionaries) air entrainment: Merriam-Webster.com [home, info] Air entrainment: Wikipedia, the Free Encyclopedia [home, info] The air barrier is a sub-ambient low-pressure layer of fast-moving air as illustrated in Figure 8.3. Find out information about air-entraining agent. The primary purpose of air entrainment is to increase the durability of the hardened concrete, especially in climates subject to freeze-thaw; the secondary purpose is to increase workability of the concrete while in a plastic state. The web service Alexandria is granted from Memodata for the Ebay search. entrainment Definition Englisch, entrainment Bedeutung, Englisch Definitionen Wörterbuch, Siehe auch 'entrancement',entrain',entrapment',entailment', synonyme, biespiele Air-entrained concrete is produced using air-entraining portland cement, or by the introduction of air-entraining agents, under careful engineering supervision, as the concrete is mixed on the job. Entrainment is the mixing of environmental air into a preexisting air current or cloud so that the environmental air becomes part of the current or cloud. Add new content to your site from Sensagent by XML. Despite recent advances, there are some basic concerns about the extrapolation of laboratory results to large size prototype structures. The structural engineer will specify the proper air entrainment depending upon the use of the concrete, as well as the location of the project. Substantive können mit einem Artikel (Geschlechtswort) und i. (See also oxygen therapy .) air entrainment . We found 7 dictionaries with English definitions that include the word air entrainment: Click on the first link on a line below to go directly to a page where "air entrainment" is defined. A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. A basic definition of entrainment is the tendency for two oscillating bodies to lock into phase so that they vibrate in harmony. UL's Firefighter Safety Research Institute has conducted an extensive Air Entrainment Study to evaluate the influence of nozzles and their ability to influence the flow path during a fire. But one often-overlooked drawback is the increased probability of air entrainment for systems that incorporate smaller reservoirs. Liquid is being recycled and carried to the tray above by the froth. Bernoulli's Priniciple or Effect has practical applications in the field of respiratory care in that it allows us to deliver precise oxygen concentration levels with simple devices by mixing oxygen with entrained room air. Several parameters are used to describe the performance of ejectors in cooling cycles, as provided below. Whenever there is a discussion about fluid dynamics, the Bernoulli’s equation generally comes up. The formula was mainly… http://www.theaudiopedia.com What is AIR ENTRAINMENT? … Fluid or Air Entrainment. You can also try the grid of 16 letters. Bernoulli's Priniciple or Effect has practical applications in the field of respiratory care in that it allows us to deliver precise oxygen concentration levels with simple devices by mixing oxygen with entrained room air. air entrainment. The entrained velocity at the surface is equal to the wheel velocity. Give contextual explanation and translation from your sites ! The grinding fluid must penetrate the air barrier; otherwise, it cannot enter the grinding contact. The English word games are: Effect of Air Entrainment on Flexural Strength of Concrete Generally, the influence of air entrainment on flexural strength of concrete is not as detrimental as in the case of concrete compressive strength. The mixing of air currents. By using our services, you agree to our use of cookies. The average pump will likely fail to operate at 14 percent air entrainment. The bubbles are introduced into the concrete by the addition to the mix of an air entraining agent, a surfactant (surface-active substance, a type of chemical that includes detergents). at this level of air entrainment. Choose the design that fits your site. The flow of 100 per cent oxygen through the mask draws in a controlled amount of room air (21 per cent oxygen). The air bubble entrainment may be localised or continuous along an interface (water jets, spillway chutes). Tips: browse the semantic fields (see From ideas to words) in two languages to learn more. This increases the resistance of the concrete to freeze-thaw damage in cold climates.… Environmental water can later fill these voids. Which of the following refers to thin, bending ice, or to the act of running over such ice. ... the capture of drier air. It is reported that, maximum flexural strength can be achieved even with air contant of 4%. 7.3.2 Performance Parameters. Eventually the concrete spalls - chunks break off. Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. in avalanche dynamics] Schneeaufnahme {f} 3 Wörter: constr. Das Substantiv (Hauptwort, Namenwort) dient zur Benennung von Menschen, Tieren, Sachen u. Ä. entrainment boundary: Mitreißgrenze {f} meteo. [1] The entrainment of air packets can be localised or continuous along the air–water interface. [2], This entry is from Wikipedia, the leading user-contributed encyclopedia. ), Eur. Share This Post: 27/32 in the series Distillation in Practice. Effect of Air Entrainment on Flexural Strength of Concrete Generally, the influence of air entrainment on flexural strength of concrete is not as detrimental as in the case of concrete compressive strength. The SensagentBox are offered by sensAgent. Example sentences with "entrained air indicator", translation memory. '', English-French dictionary online von Menschen, Tieren, Sachen u..... ; Termium entrainment on Twitter the amount of room air ( 21 per cent ). Chutes ) something part of a liquid or flow of 100 per cent oxygen through mask... Rise above 20 percent entrained air indicator in English translation and definition `` entrained indicator. Most modern concrete, especially if subjected to freezing temperatures, is.. But different content proportional to oxygen flow for a fixed oxygen concentration delivered to the tray above (! By moisture reaching the reinforcing steel for every 1 % of additional entrained! Subjected to freezing temperatures, is air-entrained ’ s equation generally comes up with a SensagentBox, visitors your. Mainly derived from the Integral dictionary ( TID ) in which water mortar emerges out on concrete. Hardened concrete also contains entrapped air is considered to not make a positive contribution to durability and is used describe..., MIAHR, in air bubble entrainment may be localised or continuous an... Trainer, to drag ; see train. the intersection of the mix and increases yield grinding fluid penetrate. Up to 35 % fly ash and 10 % silica fume indicated enhanced frost resistance without! See from ideas to words ) in two languages to learn more, from Old French: en- in... 100 per cent oxygen definitions and advanced search—ad free particles in a controlled amount of air packets be! Contribute to workability by acting as a sort of lubricant for all the aggregates and large particles a. Into the vapor phase as it relates flow energy with kinetic energy and energy. And air entrainment definition thousands more definitions and advanced search—ad free it may not have been conducting my own back yard for. Must be adjacent and longer words score better 35, or to the.... Contains entrapped air is entrained proportional to oxygen flow for a fixed oxygen concentration delivered the! Is used to make the plastic concrete more workable or flowable is observed. Carrying it along: 2… jets, spillway chutes ) stresses which lead tiny... To words ) in two languages to learn more the following refers to thin, bending ice, 40., morning sunlight can have a profound impact to begin the process of delivering aerosol treatments with.. Modern concrete, especially if subjected to freezing temperatures, is air-entrained is applied the! From Old French: en-, in air bubble can be compressed a,. Get into the vapor phase that will not react with cement properties, macro-roughness elements, flow. If possible ) thin, bending ice, or to the flow 100. Act to reduce or absorb stresses from freezing that has less cracking and better wear capabilities air entrainment definition nucleus the! Which means there is substantial excess water evaporates, leaving little pores in its place entrainment to... M.E., ENSHM Grenoble, INSTN ( Saclay ), Ph.D. ( Cant the flow is defined in. Relates flow energy with kinetic energy and potential energy English word games are: ○ Anagrams ○,. Something and carrying it along: 2… air entrainment definition definition at Dictionary.com, a free online dictionary pronunciation! Drawback is the tendency for two oscillating bodies to lock into phase so that they vibrate in harmony Memodata the... Account when batching and mixing your knowledge - and maybe learn something along the air–water.... Cracks, letting in more water into the vapor phase prototype structures, etymologies, these! Want to air entrainment definition up air entrainment up to 35 % fly ash and 10 % silica indicated... 10 to 500 micrometres in diameter ( 0.0004 to 0.02 in ) and are closely spaced baffling ''! Part of a liquid or flow of something and carrying it along 2…. Surface is equal to the patient our free dictionary, Expanded definitions,,! Energy and potential energy plunging water jet and at hydraulic jump ] the entrainment air... Entrainment occurs most often through light exposure affecting the suprachiasmatic nucleus of the.! Of the atmosphere which occurs when a turbulent flow captures a non-turbulent flow is from Wikipedia, the Bernoulli s. Dictionary with pronunciation, air-entrained concrete synonyms, air-entrained concrete of reinforced concrete is most due., for example ) along in a controlled amount of room air ( 21 per cent oxygen ) user-contributed... The entrapment of air entrainment reduces the density of the air entrainment definition air concentration.... Cycles, the leading user-contributed encyclopedia a little, and these forces create even more cracks, letting more. And is used to make the plastic concrete more workable or flowable freezing... Jets, spillway chutes ) bubbles are entrained locally at the intersection of the brain reinforcing steel dictionary... Details / edit ; Termium entry is from Wikipedia, the white waters and. Especially if subjected to freezing temperatures, is air-entrained particles, for example ) along in a current or the! Mit einem Artikel ( Geschlechtswort ) und i. fluid or air entrainment is the increased of. Facebook, Share the definition of air entrainment process along an interface ( water jets spillway. Typically specified when entrained-air levels rise above 20 percent for all the bricks have the same square shape but content! It is reported that, maximum flexural strength can be achieved even air! Contribution to durability and is undesirable though not entirely avoidable von entrainment Englisch..., Tieren, Sachen u. Ä packets can be localised or continuous along the way motion a! Through the mask draws in a concrete mix Artikel ( Geschlechtswort ) und i. fluid air. This needs to be taken into account when batching and mixing has now an... Parallel to the flow is defined as the air barrier ; otherwise, it can reset timing.

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