ODWH6XSHUSODVWLFL]HU - Institute of Physics
results show that adaptability of the PCE-2 is better than those of the commercially available Polycarboxylate Superplasticizer (PCE-1). 1. Introduction Polycarboxylate Superplasticizer (PCE) has become the most widely used admixture in the world due to its high water-reducing rate, environmental friendliness and strong molecular designability [1].
Progresses in Synthesis of Polycarboxylate Superplasticizer
It was shown in Fourier transform infrared spectroscopy (FITR) that the molecular structure of modified polycarboxylate superplasticizer (MPCE) contained sulfonic acid groups, carboxylic acid groups, polyethylene oxide vinyl groups, and other groups and had comb-shaped molecular structure.
Effects of polycarboxylate superplasticizers with different
Polycarboxylate superplasticizer (PCE) is the latest generation of superplasticizer, which is more effective than traditional superplasticizers [16]. Previous studies on improving the resistance of concrete to corrosive ions by PCEs focused on one or several types of commercial superplasticizers [16, 17]. There has been little discussion about
40 years of PCE superplasticizers - History, current state-of
PCs are formed by the main chain with carboxylate groups and the polyethylene oxide segment side chain, exhibiting excellent waterreducing properties and a high compatibility and processability in...
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.
- 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 polycarboxylate superplasticizer (PCE)?
- As one important auxiliary, superplasticizers have attracted lots of attention in the concrete and building materials field. Specially, polycarboxylate superplasticizer (PCE) has been widely applied due to its relatively low doping amount, high water reducing rate and environmental friendliness property.
- 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 are the advantages of polycarboxylate superplasticizers?
- From an engineering perspective, Polycarboxylate Superplasticizers offer several critical advantages. Firstly, the significant reduction in water-cement ratio achieved by PCE contributes to higher early and ultimate strength in concrete.
- Can polycarboxylate based superplasticizer improve the crack resistance of concrete?
- The polycarboxylate based superplasticizer can improve the crack resistance of concrete. After adding an appropriate amount of water reducing agent in concrete, the internal structure of the concrete can be improved and the contraction and cracking of concrete can be reduced.
- How to store PCE polycarboxylate superplasticizer?
- The PCE polycarboxylate superplasticizer should be stored in a cool, dry and well-ventilated place, avoiding direct sunlight and rain. At the same time, it should be kept away from fire and heat sources to prevent fire or explosion accidents. Water seepage problem.
