Superplasticizers and Other Chemical Admixtures in Concrete
concrete industries to exchange information and delineate new areas of needed research. The scope of this conference was expanded to include chemical admixtures other than superplasticizers. Proceedings of the conference were published as ACI SP-119. In October 1994, CANMET in association with the ACI and several other organizations
Superplasticizer - an overview | ScienceDirect Topics
Abstract: Superplasticizers are a fundamental ingredient for lowering the yield stress of concrete. This chapter provides an overview of the chemical classes of superplasticizers and their performance, with a selective review of those aspects that we consider important in understanding superplasticizers. We also demonstrate the consistency in
Superplasticizers for Concrete: Fundamentals, Technology, and
Superplasticizers for Concrete: Fundamentals, Technology, and Practice ... From National Research Council Canada. ... NRC Institute for Research in Construction
Effect of Superplasticizer on Workability and
This research examined the effect of superplasticizer on workability and properties of self-compacting concrete (SCC). Three types of superplasticizers Conplast SP 561, Conplast SP 430 and...
Superplasticizer
Superplasticizers ( SPs ), also known as high range water reducers, are additives used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more.
- What is a superplasticizer in concrete?
- Superplasticizers (SPs) are crucial in today's concrete industry for the production of modern concrete . Their purposes are to reduce the water-to-cement ratio and enhance the flowability and durability of concrete [2,3]. ... The Impact of Distinct Superplasticizers on the Degradation of Concrete Affected by Alkali-Silica Reaction (ASR) ...
- 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)?
- Polycarboxylate superplasticizer (PCE) makes up a class of concrete admixtures that exhibit a unique comb or brushlike structure, consisting of a trunk chain holding carboxylate groups and of pendant chains that are made of poly ethylene oxide (PEO).
- Does master glenium 118 superplasticizer improve concrete strength?
- It is observed from this study that the present work using the Master Glenium 118 superplasticizer showed more improved strength, rate of flow and workability in the concrete compared to the past studies [36,37, 38].
- How can chemical admixtures improve concrete performance?
- Chemical admixtures have also been developed to reduce amount of water-cement ratio, to enhance workability and hence improve strength , , while some researchers improved concrete performance by incorporating supplementary cementitious materials (SCMs) such as fly ash, silica fume - .
- Does water reducing agent Z improve pore structure of concrete?
- The results show that water-reducing agent Z significantly improves the pore structure of concrete and further compacts the structure of concrete and mortar, thereby improving the compressive strength of concrete.
