The Effect of Various Superplasticizers on Ultra High
Ultra-High Strength Concrete (UHSC) is a high-strength and highly ductile material formulated to provide compressive strengths exceeding 130 MPa. UHSC materials typically have a very low water-to-cementitious ratio (w/cm), which requires the use of superplasticizers, also known as High Range Water Reducing Admixtures (HRWRA), to disperse the
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Superplasticizers and Other Chemical Admixtures in Concrete
Study on Polycarboxylate Superplasticizer with Slump Retention Capacity by Zhenping Sun, Lelin Wu, Yanliang Ji, Xu Yang, Yuansong Sun, and Chao Chen SP-329-04 41 Amphoteric Superplasticizers for Cements Blended with a Calcined Clay by Marlene Schmid, Nancy Beuntner, Karl-Christian Thienel, and Johann Plank SP-329-05 55 PCE Superplasticizers Used as
Molecular dynamic simulations of montmorillonite contact with
Montmorillonite (MMT) is one of the common clay minerals in concrete and the interaction between MMT and concrete admixture, polycarboxylate (PCE) superplasticizer, obviously weakened the dispersing performance of PCE. In this work, the molecular dynamics (MD) simulations of adsorption of PCE on three cations-MMT (Na-MMT, K-MMT, and Ca-MMT
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.
- 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 is polycarboxylate superplasticizer (PCE)?
- Polycarboxylate superplasticizer (PCE), also known as polycarboxylate ether superplasticizer, is a new generation of high-performance concrete admixture.
- 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.
- How can Polycarboxylate ether reduce water and gray ratio?
- Reduce concrete water and gray ratio. Polycarboxylate ether superplasticizer can form a decentralized adsorption film in the concrete, reducing the contact between water and cement particles, thereby reducing the concrete water and gray ratio. By reducing the water and gray ratio, the strength and durability of the concrete can be improved.
