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 . According to the connection form of its main chains and side chains, PCE could generally be divided into two
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Poly(carboxylate ether)-based superplasticizer achieves
CAC is the cement of choice for high performance applications such as those requiring resistance to abrasion, corrosion, and temperature 1,2,3.Due to its high early heat and strength gain, CAC has
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Synthesis of lignin-grafted polycarboxylate superplasticizer
It is common that high-performance concrete is highly viscous, which is not conducive to transportation and pumping. In order to reduce the viscosity of fresh high-performance concrete, a lignin-based polycarboxylate superplasticizer (PCE-ACLx) was synthesized through a novel process and the structure was characterized by FTIR, 1 H NMR and GPC.
- 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 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.
- 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.
- Does polycarboxylate water reducer reduce cement dosage?
- Save cement dosage. Polycarboxylate water reducer can significantly reduce the amount of cement dosage of concrete and save costs. By adding an appropriate amount of water reducing agent, you can reduce the amount of cement without reducing the strength of the concrete to achieve the purpose of saving costs.
- Do polycarboxylate-based superplasticizers influence the performance of UHPC?
- In this research, different investigative methods were employed to study the influence of polycarboxylate-based superplasticizers (PCs) on the performance of UHPC. The potential interaction of PC with cement and fine pozzolans was explored. Three PCs, three cements, and three pozzolans typically used in the design of UHPC were selected.
