Preparation and properties of allyl ether-based polycarboxylate
Polycarboxylate ether (PCE) superplasticizer possesses outstanding characteristics, such as better slump adjustment, higher water reduction rate, and lower dosage. 1,2 It is a new type of superplasticizer commonly used in advanced concrete in recent years.
Adsorption and dispersion capability of polycarboxylate-based
Adsorption of polycarboxylate ester/ether (PCE) superplasticizer on the cementitious materials and steric effect of its side chain determine to its dispersion and water-reducing capability. This paper reviews the effect of molecular structure of PCE and characteristics of cementitious system on its adsorption behavior, and build up the relationship between adsorption of PCE and its dispersion
Adsorbed Conformations of PCE Superplasticizers in Cement Pore
The conformations of polycarboxylate ether (PCE) type superplasticizer polymers adsorbed on the surface of MgO in cement pore solution are simulated by molecular dynamics (MD). Three types of PCEs
ODWH6XSHUSODVWLFL]HU - Institute of Physics
A highly adaptable polycarboxylate superplasticizer (PCE-2) was synthesized by free radical copolymerization in aqueous solution with isoprenol polyoxyethylene ether as macromonomer, acrylic acid and hydroxyethyl acrylate and 2-methacryloyloxyethyl phosphate as unsaturated monomers, mercaptopropionic acid as chain transfer agent, hydrogen
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.
- What is polycarboxylate superplasticizer (PCE)?
- Polycarboxylate superplasticizer (PCE), also known as polycarboxylate ether superplasticizer, is a new generation of high-performance concrete admixture.
- What is a polycarboxylate ether superplasticizer?
- The polycarboxylate ether superplasticizer is an additive commonly used in concrete engineering and has a wide range of applications. The PCE based admixture can significantly reduce the amount of cement and improve the fluidity and pumpability of concrete while ensuring the strength and durability of concrete.
- What is PCE monomer?
- Polycarboxylate superplasticizer monomer are the primary raw materials used in the production of polycarboxylate superplasticizers.
- 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.
- What is PCE superplasticizer?
- PCE superplasticizer is a high-performance water reducing agent that integrates many functions such as high water reduction, high collapse retention, reinforcement, shrinkage, and environmental protection. It is also an ideal admixture for preparing high-strength and high-performance concrete.
- Which polyglycols are used in synthesis of PCE -superplasticizers?
- Clariant is one of the world's leading suppliers of polyglycols used in the synthesis of PCE -superplasticizers (3rd generation superplasticizers). Our Polyglykol M-types meet all requirements for esterification e.g. with methacrylic acid, acrylic acid and pre-polymerized (meth-)acrylates.
