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Synthesis and Performance Research of Ester Polycarboxylate Superplasticizer
Applied Mechanics and Materials, 2012Using methoxy polyethylene glycol methacrylate (MPEGMA), butyl acrylate (BA), Methyl allyl sulfonate (SMAS) as the raw materials, we can compose them to multipolymer in redox system. Through analyzing the factors and adjustment of orthogonal experimental results, the optimum technology of synthesis are shown as follows: n(MPEGMA):n(BA):n(SMAS)=5:12:2 ...
Xiao Lu Chen +5 more
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The Performance of Low Air-Entraining Polycarboxylate Superplasticizer
Advanced Materials Research, 2015A new low air-entraining polycarboxylate superplasticizer (denoted as L-PCE) was synthesized by using oxirane/epoxypropane (denoted as EO/PO) block-polyether as one of monomers. The molecular structure of EO/PO block-polyether monomer was characterized by proton nuclear magnetic resonance spectroscopy (denoted as 1H NMR).
Nan Li, Bei Ding
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Relationship between Structure and Performance of Polycarboxylate Superplasticizer
Key Engineering Materials, 2012The structure of the polycarboxylate superplasticizer (PCE) and the relationship between the structure and the performance of PCE were summarized and analyzed. Based on these results achieved so far, the consensus and the unified opinions were presented while the ambiguous and contradictory points were compared and discussed. Furthermore, the different
Zi Ming Wang +3 more
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Adsorption Behavior of Polycarboxylate Superplasticizer on Cement Particles
Applied Mechanics and Materials, 2013In this paper, the adsorption behavior of polycarboxylate superplasticizer (PC) on cement was examined. Through adsorption of PC, adsorption area of the molecule was calculated, and it is found that PC molecule would maintain curled shape when it was adsorbed on the surface of cement particles.
Zhi Kun Li, Jia Hui Peng
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Preparation and Properties of New Polycarboxylate-Type Superplasticizer
Advanced Materials Research, 2011A modified polycarboxylate superplasticizer was synthesized by copolymerization of polyethylene glycol monomethyl ether methacrylate (MPEG-MA), β–Cyclodextrins grafted maleic anhydride (MAH-β-CD), methacrylic acid (MAA) and methallyl sulfonic acid (MAS). The excellent superplasticizer was obtained at the molar ratio of n(MAH-β-CD) : n(MAS) : n(MAA) : n(
Sheng Hua Lv +4 more
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Preparation and properties of nanosilica-doped polycarboxylate superplasticizer
Construction and Building Materials, 2020Abstract Combination of nanoparticles and polycarboxylate superplasticizers (PCE) is expected to synchronously improve the workability, mechanical properties and durability of the mortars and concretes. In this study, nanosilica (NS) has been introduced and grafted onto PCE molecular chains through radical polymerization.
Chunrong Ren +4 more
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Influence of Polycarboxylate Superplasticizer on Cement Hydration Products
Applied Mechanics and Materials, 2014This paper studied the effect of polycarboxylate superplasticizer on cement hydration products through XRD, DTA/TG, ESEM, IR, XPS and adsorption test, and suggested that the new hydration products were not discovered in the adding PC sample; the adding of PC delayed the formation of hydration product of Aft; with the hydration, the PC molecules were ...
Zhi Kun Li, Jia Hui Peng
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Mechanism of intercalation of polycarboxylate superplasticizer into montmorillonite
Applied Clay Science, 2016Abstract It is well known that polycarboxylate superplasticizer (PC) has a poor clay tolerance, due to huge adsorption amount caused by clay minerals, especially by montmorillonite (Mt). The aim of the paper is to study the mechanism of the interaction of Mt and PC.
Hongbo Tan +5 more
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Reflections on the Detection Method of Polycarboxylate Superplasticizer
Applied Mechanics and Materials, 2015According to the detection method of "Polycarboxylates high performance water reducing admixture"(JG/T223-2007), the different concrete mix ratio with different binder systems were designed to test the air-entraining content and compressive strength ratio for 3days of the HSP-V and PCA-II polycarboxylate superplasticizer.
Ling Yao, Shi Wei Li, Chao Li
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Synthesis and Characterization of Comb-Like Polycarboxylate Superplasticizer
Applied Mechanics and Materials, 2012Polycarboxylate superplasticizers have become the superstar for high-performance concrete. Because their molecular structure can be easily manipulated by impart new materials to acquire new performance. In this paper, the synthetic parameters adjusting experiment is utilized to get the optimal synthetic formulations.
Yun Hui Fang +9 more
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