Superplasticizers in practice - ScienceDirect
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.
Superplasticizers in practice - ScienceDirect
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.
Superplasticizer - an overview | ScienceDirect Topics
Superplasticizers are additions that allow a given degree of workability to be obtained at a reduced water/cement ratio. The ratio may be reduced by up to 20% in the presence of, for example, sulphonated naphthalene formaldehyde condensate, which is absorbed at the solid/liquid interface.
Superplasticizers in practice | Request PDF - ResearchGate
Superplasticizers are essential components of modern concrete, allowing the production of highly durable structures with reduced environmental impact. Their working mechanisms rely on their...
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.
- 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.
- What is a superplasticizer?
- 2006, Materials for Engineering (Third Edition) J.W. Martin Superplasticizers are additions that allow a given degree of workability to be obtained at a reduced water/cement ratio. The ratio may be reduced by up to 20% in the presence of, for example, sulphonated naphthalene formaldehyde condensate, which is absorbed at the solid/liquid interface.
- What are the different types of superplasticizers?
- Types of Superplasticizers: Sulphonated Melamine – Formaldehyde Condensates (SME): Sulphonated Naphthalene Formaldehyde Condensates (SNF): Modified Lignosulphonates (MLS): Special considerations for high-strength materials Superplasticizers in practice Waste for aggregates in ultrahigh-performance concrete (UHPC)
- Why should a superplasticizer be reduced?
- Higher levels of dispersion may be reached and possible segregation may occur. As a result, in most cases, the superplasticizer dosage should be reduced. This, in turn, would reduce the workability time, so that the final benefits are not obvious. In an earlier section, we mentioned that the mixing process affects the initial fluidity of concrete.
- Why do we use specialized superplasticizers in RC?
- However, the unique properties of RC, such as the high water demand and short setting time, necessitate the use of specialized superplasticizers that are different from those used in ordinary Portland cement. As an important component for the application of RC, superplasticizer has an important impact on the performance modification of RC.
- What are inorganic superplasticizers?
- Inorganic superplasticizers contain inorganic salts as the major components, including silicate, phosphate, borate, etc. Inorganic superplasticizers are used to increase the fluidity of concrete while reducing water consumption by modifying the composition and structure of cement and reducing its degree of gelatinization.
