Handbook of Plasticizers - 3rd Edition
Description. Handbook of Plasticizers, Third Edition, is an essential professional reference, providing information that enables R&D scientists, production chemists, and engineers the information they need to use plasticizers more effectively, and to avoid certain plasticizers in applications where they may cause health or material durability
Effect of Superplasticizer on Workability and
From recent issues of stability, particle suspension, particle segregation, flow characteristics and cohesiveness in concrete, Superplasticizer has played an important role in this part. This...
Effect of Superplasticizer on Fresh and Hardened
The tests considered for study are, slump test and compressive strength test The results show that the increase of superplasticizer dose in concrete leads to gain of good ability in addition to...
Use of Water Reducers, Retarders, and Superplasticizer
There are four types of superplasticizers: sulfonated melamine, sulfonated naphthalene, modified lignosulfonates and a combination of high dosages of water reducing and accelerating admixtures. Commonly used are melamine based and naphthalene based superplasticizers.
Super-plasticizers In Concrete: Amazon.com: Books
Super-plasticizers In Concrete. Unknown Binding – January 1, 1979. 1 rating. 1 LB bag Concrete additive-Water reducer-Super plasticizer High-performance superplasticizer for cement based construction materials Characteristics / Chemistry Free-flowing, spray dried powder of modified polycarboxylic ether. Fields of Application Superplasticizer
- Are superplasticizers essential components of modern concrete?
- Conclusions Superplasticizers are essential components of modern concrete, allowing the production of highly durable structures with reduced environmental impact. Their working mechanisms rely on their molecular structures and physical–chemical interactions taking place between them and the surface of cement particles.
- Does superplasticizer admixture affect rheological properties of self-compacting concrete?
- The influence of superplasticizers on cement paste, and on rheological and mechanical properties of self-compacting concrete, are also discussed. Moreover, the effect of dry extract of superplasticizer admixture on the behavior of concrete is included. 8.1. Introduction
- Can superplasticizers improve self-compacting concrete workability?
- Self-compacting concrete workability is usually ensured by the addition of superplasticizers in the mixture. The effects of some properties of superplasticizers have been investigated by many researchers.
- Are superplasticizers compatible with cement?
- Beyond these process parameters, the only real leverage on these superplasticizers is their molecular mass, in the range of 32–75 kD in the case of PNS (Spiratos et al., 2003). This only leaves a narrow range of variations, so that incompatibilities with cement should come mainly from the cement.
- Does superplasticizer dry extract affect the mechanical behavior of self-compacting concretes?
- The superplasticizer dry extract content in the self-compacting concretes affects directly their mechanical behavior due to the adsorption phenomenon of superplasticizers (electrostatic and steric repulsion) as a consequence of changes in the cement hydration kinetics , , , , , , .
- How do superplasticizers interact with cement?
- Today, recent results give a better understanding of the interactions between superplasticizers and cement. It is commonly accepted that the adsorption kinetics of superplasticizers on the surface of cement particles is the basis of deflocculation and dispersion of cement grains over time.
