Optimizing Polycarboxylate Based Superplasticizer
The use of polycarboxylate ether (PCE) as superplasticizer (SP) in the manufacture of high strength concrete is increasingly common. Each brand of SP available on the market has different
Effect of polycarboxylate ether superplasticizer (PCE) on
All mixes have a water-to-cement ratio (W/C) of 0.4 by mass. As a parameter, the amount of PCE superplaticizer addition varies from 0, 0.05, 0.1, 0.15, 0.2, 0.25 to 0.3% by mass of cement. The polycarboxylate ether superplasticizer (PCE) used in this study is a commercial product commonly used in European market (MasterGlenium 51).
Process design and optimization of VPEG-PCEs - NASA/ADS
The VPEG type polycarboxylate superplasticizer (PCE-A) was synthesized by using 4-hydroxybutylvinyl polyoxyethylene ether (VPEG) as macromonomer, hydrogen peroxide (H 2 O 2 )reducing agent (sodium formaldehyde sulfoxylateas) as redox system, and thioglycolic acid as the chain transfer agent.
The Effect of Various Superplasticizers on Ultra High
Common examples of superplasticizer compositions include Polynaphthalene Sulfonate (PNS), Polymelamine Sulfonate (PMS) and Polycarboxylate Ether (PCE) based polymers. This study focuses on assessing the impact of various superplasticizers on the performance of UHSC.
Project Report On Polycarboxylate Ether Superplasticizer (Pce)
PROJECT REPORT ON POLYCARBOXYLATE ETHER SUPERPLASTICIZER (PCE) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Superplasticizers, also known as high range water reducers, are chemical admixtures used where well-dispersed particle suspension is required.
- What is Polycarboxylate ether superplasticizer (PCE)?
- The polycarboxylate ether superplasticizer (PCE) used in this study is a commercial product commonly used in the market. It is free of chloride and has the sulphnic groups of polymer chain. The molecular weight is 2400 g/mol. The solid content of PCE surfactants is 30% over the total mass in liquid form.
- How are polycarboxylate superplasticizers synthesized?
- In this work, a series of polycarboxylate superplasticizers (PCEs) were synthesized via copolymerization using a novel macromonomer, ethylene–glycol monovinyl polyethylene glycol (EPEG). The molecular structures were modified by varying the side chain length, carboxylate density and integrating sulfonic group.
- Do Polycarboxylate ether/ester superplasticizers affect concrete performance?
- Polycarboxylate ether/ester (PCE) superplasticizers are widely used due to their molecular structural designability, low dosage and high efficiency. However, their high sensitivity and strong interactions with clays in concrete reduce their dispersion and water-reduction capability, which can affect the performance of concrete seriously.
- Does Polycarboxylate ether surperplasticizer improve thixotropy and flocculation state?
- Polycarboxylate ether surperplasticizer (PCE) has been commonly used and studied to enhance flowability of cementitious materials. However, the effect of PCE addition on thixotropy and flocculation state has not gained enough attention. In this study, Focused Beam Reflectance Measurement (FBRM)-rheometer is coupled.
- What are viscosity reducing polycarboxylate superplasticizers (Jn-PCE)?
- In this study, we synthesized a series of viscosity-reducing polycarboxylate superplasticizers (JN-PCE) utilizing allyl polyethylene glycol ether (APEG), acrylic acid (AA), and sodium methallyl sulfonate (SMAS) as raw materials through the process of free radical polymerization.
- Do sacrificial agents and molecular design affect clays-resistance of PCEs?
- The effects of use of sacrificial agents and molecular design on clays-resistance of PCEs are analyzed. Polycarboxylate ether/ester (PCE) superplasticizers are widely used due to their molecular structural designability, low dosage and high efficiency.
