Synthesis and Properties of a Polycarboxylate Superplasticizer with a
Polycarboxylate superplasticizers (PCEs) are comb-shaped polymers with an anionic backbone and several nonionic pendant chains, which typically are comprised of polyethylene glycols. In this study, the synthesis of a new type of superplasticizer is presented, which does not exhibit the typical comb-shaped form of PCEs but is built up from a linear polyetheramine and a hyperbranched
Sika ViscoCrete-20 HE | PCE based Super-plasticizers
Sika ViscoCrete-20 HE is designed to work on a combination of electrostatic adsorption and steric repulsion effects allowing solid particles to be effectively dispersed. Therefore a high level of fluidity and plasticising can be reached with a high water reduction which provides many advantages.
Polycarboxylate - an overview | ScienceDirect Topics
11.5.4 Polycarboxylates. In the past, polycarboxylate (PCE) nanomaterials were utilized in concrete [166]. PCE is a polymer-based compound obtained from methoxy-polyethylene glycol copolymer. Usually, the carboxylate group is comprised of water molecules, rendering a negative charge along the backbone of PCE.
Polycarboxylate Superplasticizers - Concrete Construction
The PCE superplasticizer replaced both the PNS/lignin and Type A water-reducing products at about one-third the dosage rate. Also, note the 50% drop in AEA dosage rate with the PCE admixed concrete to obtain the same air content.
Experimental Investigation on PCE and SNF Type Admixture on
Super plasticizers are chemical admixtures used where well-dispersed particle suspension is required. Its application in concrete facilitates the reduction of the water with respect to the cement ratio without adversely influencing the workability of the concrete sample.
- 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.
- What is PCE Based admixture?
- 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. Therefore, PCE superplasticizer can be widely used in these projects, such as water conservancy, eletrical power, ports, railway ,bridge, highway and buldings,etc.
- What is polycarboxylate superplasticizer (PCE)?
- Polycarboxylate superplasticizer (PCE), also known as polycarboxylate ether superplasticizer, is a new generation of high-performance concrete admixture.
- Why is poly-carboxylate the most effective superplasticizer for cement concrete?
- Poly-carboxylate achieves its water reducing effect through the yield of electrostatic repulsion and steric hindrance when it is absorbed to the cement particles. Hence, Poly-carboxylate is the most effective superplasticizer for cement concrete. Poly-carboxylate is a raw material for superplasticizer.
- What is PCE water reducer?
- PCE water reducer is a ready-to-use liquid superplasticizer. It is light yellow in appearance. Besides, it can be completely water easily. The water reduction efficiency of PCE concrete admixture can be up to 25%. It is mainly used in the ready-mixed and precast concrete industries where the highest durability and performance is required.
- What are the advantages of polycarboxylate based superplasticizer?
- Low dosage and high water reduction rate. The water reduction rate of polycarboxylate based superplasticizer can be as high as 45%, which can be used to prepare high-strength and high-performance concrete. Small loss when slump is light.
