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Performance evaluation of cementitious composites by designing an extrusion system for construction 3D printing. [PDF]
Sci RepHiremath S +3 more
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A feasibility assessment of low-carbon concrete containing calcined clay and granite powder or dolomitic limestone in Burkina Faso. [PDF]
Sci RepNshimiyimana P +8 more
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Influence of Quality of Recycled Fine Aggregate on Properties of Concrete [PDF]
Fumoto, Takayuki, Yamada, Masaru
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Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2022
Abstract Ester-based slow-release polycarboxylate superplasticizers (PCT) exhibit high fluidity and a good slump retention effect on concrete slurries. Hence, in this study, a previously prepared unsaturated triethyl citrate (as the functional monomer) and acrylic acid and isoprenyloxy polyethylene glycol (as the primary raw materials) were employed ...
Pengchao Feng +4 more
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Abstract Ester-based slow-release polycarboxylate superplasticizers (PCT) exhibit high fluidity and a good slump retention effect on concrete slurries. Hence, in this study, a previously prepared unsaturated triethyl citrate (as the functional monomer) and acrylic acid and isoprenyloxy polyethylene glycol (as the primary raw materials) were employed ...
Pengchao Feng +4 more
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Preparation Research of Shrinkage Reducing Polycarboxylate Superplasticizer
2020 International Conference on Artificial Intelligence and Electromechanical Automation (AIEA), 2020Shrinkage reducing polycarboxylate superlasticizer was synthesized with acrylic acid, isopentenol polyoxyethylene ether (TPEG) and shrinkage-reducing monomer P. Monomer P was obtained by esterification of acrylic acid with dipropylene glycol. We studied the effects of ordinary polycarboxylate superlasticizer (Point-MS) and the synthetic shrinkage ...
Yanmei Lin, Xiaofang Zhang, Yanna Shi
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Application of Polycarboxylate Superplasticizer in the Concrete
Materials Science Forum, 2017Compared with the traditional water reducer, polycarboxylicwater-reducing agent exhibits the advantages of high water-reducing rate, cement paste fluidity and low slump loss, etc. The structure of polycarboxylates water reducing agent molecular is comb type.
Xing Qi Huang +4 more
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Research on Polycarboxylic Superplasticizer with Slump Retaining
Advanced Materials Research, 2014Adopting methyl allyl polyoxyethylene ether (TPEG) and unsaturated carboxylic acid throught REDOX system synthetize the polycarboxylic slump retaining admixture. Researching the impact factors of temperature,reaction time, acid alcohol ratio, dosage of initiator and molecular regulator to the polycarboxylic superplasticizer with slump retaining.In the ...
Guo Sheng Liao, Tao Ai, Yu Xiao
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The Preparation Research of Powder Polycarboxylate Superplasticizer
Applied Mechanics and Materials, 2011This 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 chamber is 200°C/80°C. It achieves a high concentration of polycarboxylate superplasticizer to prepare
Miao Miao Gui +5 more
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Synthesis of new polyether polycarboxylate superplasticizer
Journal of Wuhan University of Technology-Mater. Sci. Ed., 2010The effects of various factors on the synthesis process and the performances of product, including batch feeding way and the dosage of the radical initiator, the system concentration, the reaction temperature and the reaction time were discussed. A kind of polycarboxylate superplasticizer with allyl alcohol polyethylene glycol, maleic anhydride and ...
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