Results 31 to 40 of about 9,383 (216)
VARIATION OF SUPERPLASTICIZER AMOUNT ON CONCRETE COMPRESSIVE STRENGTH [PDF]
, 2023 This study aims to determine the effect of the addition of superplasticizer in concrete mixtures on compressive strength. To achieve this goal, a laboratory study was conducted using 12 cylindrical specimens with a diameter of 150 mm and a height of 300 ...
Rido +3 more
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Influence of mixture composition on fresh concrete workability for ballastless track slabs [PDF]
E3S Web of Conferences, 2020 There are several factors that affect the fresh concrete workability: water demand and composition of Portland cement, properties of fine and coarse aggregates, presence of superplasticizer and others admixtures, etc.
Kazanskaya Liliya, Smirnova Olga
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工程科学学报, 2022 Aiming at the problems of pipeline transportation blockage and filling body stratification caused by waste rock–unclassified tailings high-concentration slurry, the effects of superplasticizer and stirring parameters on the slurry homogenization were ...
Xiao-bing YANG +3 more
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Effect of Superplasticizer on Workability of Concrete Containing Crumb Rubber [PDF]
, 2015 Crumb rubber concrete was produced by using 10% of recycled fine rubber 400 ?m as the sand replacement. Superplasticizer with 0.25%, 0.5%, 0.75% and 1.0% contents were added into crumb rubber concrete without changing the water-cement ratio purposely to ...
Al-Tayeb, Mustafa Maher, Hamouda, Hasan
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矿业科学学报, 2021 Coal gasification slag is a kind of solid coal chemical waste which mainly contains aluminosilicate minerals.The gasification slag modified by mechanical grinding and chemical excitation can be used as active admixture of composite Portland cement, which
Zhang Ming +5 more
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TOWARDS TAILORED SUPERPLASTICIZERS
, 2005 Superplasticizers (SP) of the “new generation” are essentially polycarboxylate polymers. Polymers of this family can be produced with almost infinite variations in their chemical structure, which allow the fulfilment of specific (tailored) properties. These polymers are more efficient for water reduction and for keeping concrete workability for longer ...
Houst, Y.F., Bowen, P., Perche, F.
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The Preparation Research of Powder Polycarboxylate Superplasticizer
, 2011 This paper uses centrifugal spray drying process to prepare powder polycarboxylate superplasticizer. The best spray drying process: speed of centrifugal atomizer is 16000r/min, feed liquid temperature is 30°C, import / export air temperature of drying ...
Miao Miao Gui +5 more
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Research of Efficient Methods of Superplasticizer Introduction into Cement Materials
, 2017 The article presents the results of researching efficiency of different modes of superplasticizer introduction in solution mixture with different consistency - from hard to plastic.
M.O. Korovkin, D.M. Grintsov
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Pengaruh Pengerasan Beton Menggunakan Superplasticizer Terhadap Kuat beton Busa [PDF]
, 2022 A new product of lightweight concrete that has a low specific gravity that is increasingly used in the world of construction is foam concrete. In this study, testing the addition of superplasticizers to the foam concrete mixture was carried out, by
M Royan +5 more
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Synthesis and Characterization of Quaternary Polymers as Superplasticizer and Assessing Their Effectiveness on Micronized Cement Particles [PDF]
علوم و تکنولوژی پلیمر, 2017 Different macromonomers having polyethylene glycol branches were synthesized via esterification reactions in various conditions. Quaternary polymers were prepared using synthesized macromonomers of polyoxyethylene acrylate and methacrylate with a PEG ...
Mohammad Reza Rostami Daronkola
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