A polycarboxylate as a superplasticizer for montmorillonite
Polycarboxylate superplasticizer also exhibited some limitations. A major concern is its poor tolerance to clay minerals in cement (Hassan and Ismail, 2017). The PCE cannot effectively prevent the clay minerals in concrete from forming aggregates (Ismail and Hanafiah, 2017). This is nontrivial as it will lead to a dramatic decrease of
Synthesis of Comb-Polyurethane-Modified Polycarboxylate at
Polycarboxylate superplasticizer (PCE) has been extensively used in concrete technology since the 1980s (Plank and Bian, 2010). The side chain of PEO is suspended between the Portland cement particles to exert its steric hindrance effect, thereby dispersing Portland cement (Li et al., 2005; Wang, 2009). Compared with other plasticizers, PCE has
Sika ViscoCrete-3110 | PCE based Super-plasticizers
High range superplasticizer and self-compacting Concrete (SCC) Admixture. Sika ViscoCrete-3110 is a third generation polycarboxylate based superplasticizer for concrete. It has been particularly developed for use in ready mixed concrete to give extended slump retention and high strength development of normal grade concrete mixes.
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].
Frontiers | Synthesis of Modified Polycarboxylate and Its
Polycarboxylate has functions such as slump protection, coagulation control, and shrinkage reduction. By adding polycarboxylate, the force between Portland cement particles and the physicochemical properties of their solid–liquid interface are changed, thus affecting the flowability of cement paste ( Andersen et al., 1987; LI et al., 2005 ).
- 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.
- 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 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 a polycarboxylate superplasticizer be used for 70 flow-carbon cement?
- This innovation could broaden the range of applications for 70 flow-carbon cement applications (Shu et al., 2016; Sabzi et al., 2024; Wang et al., 2024). Polycarboxylate Superplasticizers In 1981, a PCE concrete water reduction agent was developed.
- Are polycarboxylate superplasticizers used in concrete?
- NVSRK (2024) “Polycarboxylate Superplasticizers Used in Concrete: A review,” International Journal of Experimental Research and Review. doi: 10.52756/ijerr.2024.v38.007. Modern concrete frequently uses a variety of chemical admixtures, like setting time-retarding admixtures, viscosity-modifying admixtures (VMA), and superplasticizers (SPs).
