Research progress on polycarboxylate based superplasticizers
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.
Progresses in Synthesis of Polycarboxylate Superplasticizer
Polycarboxylate superplasticizer (PCE) was synthesized by unsaturated monomers of carboxylic acid, alkane macromonomers of long chains, and others. It was an excellent cement dispersant which would make great performance in concrete [ 1 ].
Synthesis and Properties of a Polycarboxylate
Polycarboxylate superplasticizers (PCEs) emerged as one of the most important superplasticizers for concrete due to their superior performance. (1,2) Compared to other products like polycondensates, they fluidize cement even at low water to cement ratios, require relatively low dosages, and exhibit a long slump retention capability. (35) The
Polycarboxylate Superplasticizers - Concrete Construction
Subsequent to the introduction of so-called general purpose PCE superplasticizers, new PCE products have been developed especially designed to provide high early strength and different levels of slump retention, as well as provide different capabilities to manage air contents in concrete.
Polycarboxylate Superplasticizers | Supercizer PCE | Fritz-Pak
Polycarboxylate superplasticizers are a fairly recent development in the concrete admixture industry. This unique blend of water-reducing chemicals provides substantially more benefits than previous superplasticizers.
- What is polycarboxylate superplasticizer?
- 1. Introduction The polycarboxylate superplasticizer is characterized by low dosage requirements, a high water-reducing rate, excellent slump retention performance, and strong designability and environmental friendliness during the production process, making them the most widely used admixture in modern concrete , , .
- Can polycarboxylate superplasticizer solve the problem of high viscosity?
- To solve the problem of high viscosity for fresh concrete especially high-grade concrete, a novel viscosity-reducing type of polycarboxylate superplasticizer (PCE) was synthesized based on innovative design of molecular structure, and also was characterized to confirm the designed molecular structure.
- Does polycarboxylate superplasticizer alter dispersion and water-reducing effects?
- Polycarboxylate superplasticizer, synthesized using different methods, may alter dispersion and water-reducing effects. The synthesis of PCE involves creating a novel macromolecular monomer with a controllable molecular mass, adjustable lipophilic, and hydrophilic moieties, as outlined in this study.
- What is a comb-like polycarboxylate superplasticizer (PCE)?
- In this study, a novel comb-like polycarboxylate superplasticizer (PCE) was synthesized using isobutenyl polyethylene glycol (IPEG) and hydroxyethyl acrylate (HEA) by atom transfer radical polymerization (ATRP) (defined as A-CPCE).
- Can comb-like polycarboxylate superplasticizer be synthesized by ATRP method?
- Based on the obtained results, the following conclusions can be drawn: 1. A comb-like polycarboxylate superplasticizer with relatively uniform polymer species (A-CPCE) was successfully synthesized by ATRP method.
- How to synthesize a comb-like polycarboxylate superplasticizer with relatively uniform polymer species?
- 1. A comb-like polycarboxylate superplasticizer with relatively uniform polymer species (A-CPCE) was successfully synthesized by ATRP method. Various characterization methods such as 1 H NMR, SEC and SCD determined the acquisition and molecular information of the synthesized products. 2.
