The rheological properties of self-compacting concrete containing superplasticizer and air-entraining agent

Huang, Fali; Li, Huajian; Yi, Zhihua; Wang, Zhen; Xie, Yongjiang

doi:10.1016/j.conbuildmat.2018.01.169

Cited by 68 publications

(22 citation statements)

References 27 publications

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“…e presence of salt solutions eventually results in premature spalling of the concrete surface [21,22], which gives rise to additional maintenance costs every year [23,24]. e air entraining agent (AEA) is undoubtedly the most critical admixture in order to improve the frost resistance of concrete [25,26]. e addition of air entraining agent brings a large number of tiny, enclosed bubbles inside the concrete.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Durability Behaviour and Optimization of Concrete with Triple‐Admixtures Subjected to Freeze‐Thaw Cycles in Salt Solution

Wang

Zhu

et al. 2021

Advances in Materials Science and Engineering

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In the seasonal frozen area of northeast China, cement concrete is usually in a working environment of cold climate and chlorine erosion coupling effect. In general, with a reasonable addition of air entraining agent (AEA) and multimineral admixtures such as fly ash, blast furnace slag, and silica fume, the durability of cement concrete under the effects of freeze-thaw and salt solution can be significantly improved in cold regions. However, due to several more compositions of cement concrete with multiple mineral admixtures, it would take excessive trial mixtures to select the desired mixture proportion based on the conventional method. This means a great deal of costs of raw materials and laboratory experimental time. In this paper, the experimental scheme of mixture proportion for air-entrained concrete with multimineral admixtures was designed based on the orthogonal experiment design method. Based on the compressive strength, rapid chloride permeability, and weight loss and relative dynamic elastic modulus after salt freeze-thaw cycles, the influence of different mineral admixtures and their dosages on the durability of concrete subjected to freeze-thaw in salt solution was analyzed. After that, based on genetic algorithm, an optimization of mixture proportion was proposed, which only requires less trial mixes and accessible optimization process. The test results indicated the superiority of air-entrained concrete with multimineral admixtures when serving in salt freeze-thaw environment. Eventually, it was also verified that the optimized concrete in this paper could achieve pleasurable durability performances under salt freeze-thaw cycles.

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Section: Introductionmentioning

confidence: 99%

Investigation on Durability Behaviour and Optimization of Concrete with Triple‐Admixtures Subjected to Freeze‐Thaw Cycles in Salt Solution

Wang

Zhu

et al. 2021

Advances in Materials Science and Engineering

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“…In recent studies unmodified rosin was used for making films, coatings and adhesives [26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42], biomedical applications [43,44,45,46,47,48,49,50,51,52,53,54,55], or in mining, metallurgy and construction [56,57,58] and for filler purposes [59,60,61,62,63,64]. However, chemical modification of rosin gives many-fold greater possibilities of using this raw material, which are described in the next, main section of this article.…”

Section: Basic Information About Rosinmentioning

confidence: 99%

Advances in Rosin-Based Chemicals: The Latest Recipes, Applications and Future Trends

et al. 2019

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A comprehensive review of the publications about rosin-based chemicals has been compiled. Rosin, or colophony, is a natural, abundant, cheap and non-toxic raw material which can be easily modified to obtain numerous useful products, which makes it an excellent subject of innovative research, attracting growing interest in recent years. The last extensive review in this research area was published in 2008, so the current article contains the most promising, repeatable achievements in synthesis of rosin-derived chemicals, published in scientific literature from 2008 to 2018. The first part of the review includes low/medium molecule weight compounds: Especially intermediates, resins, monomers, curing agents, surfactants, medications and biocides. The second part is about macromolecules: mainly elastomers, polymers for biomedical applications, coatings, adhesives, surfactants, sorbents, organosilicons and polysaccharides. In conclusion, a critical evaluation of the publications in terms of data completeness has been carried out with an indication of the most promising directions of rosin-based chemicals development.

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“…The use of chemical admixtures makes it possible to decrease the water-to-binder ratio and thus increase the mechanical strength by improving the microstructure [59]. For Huang, et al, in the case of higher percentages of entrained air, chemical admixtures are more effective [60]. For Mardani-Aghbaghou, et al, the chemical admixture needs to be chosen on the basis of the type of sulfates present in cement, i.e.…”

Section: Current State Of Knowledgementioning

confidence: 99%

Optimization of concrete mix design to account for strength and hydration heat in massive concrete structures

Bourchy¹,

Barnes²,

Bessette³

et al. 2019

Cement and Concrete Composites

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In the case of massive concrete structures, the heat generated by cement hydration may cause cracking due to thermal strains. The mix design of the concrete used for such structures has to take account of mechanical properties and generated temperatures. Using experimental design principles, the hydration heat and the development of compressive strength are measured in order to determine how the composition of concrete and the presence of SCM influence the characteristics of concrete and to create a mix design protocol. This protocol can help to determine which mix design minimizes the hydration temperature for a given compressive strength.

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The rheological properties of self-compacting concrete containing superplasticizer and air-entraining agent

Cited by 68 publications

References 27 publications

Investigation on Durability Behaviour and Optimization of Concrete with Triple‐Admixtures Subjected to Freeze‐Thaw Cycles in Salt Solution

Investigation on Durability Behaviour and Optimization of Concrete with Triple‐Admixtures Subjected to Freeze‐Thaw Cycles in Salt Solution

Advances in Rosin-Based Chemicals: The Latest Recipes, Applications and Future Trends

Optimization of concrete mix design to account for strength and hydration heat in massive concrete structures

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