Influence of air-entraining intensity on the afterburner ignition, flame-holding and combustion characteristics
Sign Up to like & getrecommendations! Published in 2020 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2020.106063
Abstract: Abstract Reliable ignition, flame-holding, and efficient combustion are crucial, particularly for the newly designed afterburner in variable cycle engines (VCEs). Herein, the air-entraining parts are close-coupled with the cavity-strut structures to simulate the variable cycle… read more here.
Keywords: air entraining; entraining intensity; flame; air ... See more keywords
Sulfonic gemini surfactants: Synthesis, properties and applications as novel air entraining agents for concrete
Sign Up to like & getrecommendations! Published in 2017 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2017.03.052
Abstract: Abstract The development of high performance air entraining agents for concrete is of great importance. In this work, sulfonic gemini surfactants have been utilized as high performance air entraining agents for the first time. Six… read more here.
Keywords: sulfonic gemini; air entraining; gemini surfactants; air ... See more keywords
Cationic oligomeric surfactants as novel air entraining agents for concrete
Sign Up to like & getrecommendations! Published in 2018 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2017.11.065
Abstract: Abstract In this work, we report for the first time the applications of cationic oligomeric surfactants as novel air entraining agents for concrete. A series of oligomeric surfactants with the oligomerization degrees from 2 to… read more here.
Keywords: surfactants novel; cationic oligomeric; air entraining; air ... See more keywords
The rheological properties of self-compacting concrete containing superplasticizer and air-entraining agent
Sign Up to like & getrecommendations! Published in 2018 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2018.01.169
Abstract: Abstract This work investigates the effect of a polycarboxylate superplasticizer (SP) and a rosin resin type air-entraining agent (AE) on the rheological properties of powder-viscosity modifying admixture (VMA) combination type self-compacting concrete (SCC). The modified… read more here.
Keywords: air entraining; thickening behavior; shear thickening; air ... See more keywords
Effects of salts and adsorption on the performance of air entraining agent with different charge type in solution and cement mortar
Sign Up to like & getrecommendations! Published in 2020 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2020.118188
Abstract: Abstract In this paper, the effect of salts in solution and the adsorption of surfactant are studied to give the answer why the air entraining agents fail. The high valence cations (e.g. Ca2+) weaken the… read more here.
Keywords: adsorption; air entraining; surface; solution ... See more keywords
Electrochemical and statistical analyses of the combined effect of air-entraining admixture and micro-silica on corrosion of reinforced concrete
Sign Up to like & getrecommendations! Published in 2020 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2020.120768
Abstract: Abstract This study aims to clarify the combined effect of air-entraining admixture (AEA) and micro-silica (MS) on the structure of cement mortar to improve the corrosion behavior of the resulting reinforced concrete. Open circuit potential… read more here.
Keywords: combined effect; entraining admixture; micro silica; corrosion ... See more keywords
Compatibility of Shrinkage-Reducing and Air-Entraining Admixtures
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DOI: 10.14359/51689900
Abstract: The compatibility of two shrinkage-reducing admixtures (SRAs) with two air-entraining admixtures (AEAs)—one surfactant-based and one foaming polymer-based—was examined based on freezingand-thawing durability, scaling resistance, and air-void characteristics of hardened concrete. SRA dosages of 0, 0.5,… read more here.
Keywords: compatibility; air entraining; shrinkage reducing; entraining admixtures ... See more keywords
Impact of Surfactant and Calcium Sulfate Type on Air-Entraining Effectiveness in Concrete
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15030985
Abstract: The paper presents the evaluation of the influence of calcium sulfate on the air void microstructure in concrete and its action mechanism depending on the character of the air-entraining agent. Gypsum dehydration has been previously… read more here.
Keywords: air entraining; air void; air; calcium sulfate ... See more keywords
EFFECT OF RECYCLED CONCRETE AGGREGATE, AIR ENTRAINING ADMIXTURE AND MAXIMUM AGGREGATE PARTICLE SIZE ON THE BEHAVIOR OF CONCRETE UNDER FREEZE-THAW CYCLES
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Green Building"
DOI: 10.3992/jgb.16.2.217
Abstract: This article presents freeze-thaw (F/T) resistance of concrete containing recycled concrete aggregate (RCA). RCA percentages of 15%, 30%, 45%, and 60% were replaced by natural aggregate. Air entraining admixture (AEA) with three different ratios (0.06%,… read more here.
Keywords: concrete aggregate; air entraining; aggregate air; freeze thaw ... See more keywords