Adsorption of superplasticizer admixtures on alkali-activated slag
The adsorption isotherms for the three superplasticizers on 11.7- and 13.6-pH NaOH-AAS and OPC are shown in Fig. 3. In 11.7- and 13.6-pH NaOH-AAS pastes the adsorption of melamine-based admixture is linear at initial concentrations of admixture lower than 6 mg superplasticizer/g slag (see Fig. 2 a).
Delay Set Superplasticizer | Fritz-Pak | Concrete Admixtures
The delay set feature of the products helps keep the first layer of concrete plastic as you work your way around the forms. As a premium superplasticizer, this admixture offers up to 40% water reduction and a Supercizer 7 does not contain hazardous materials and comes packaged in our signature water-soluble bags.
Sikament NN | Superplasticizers
High Range Liquid Water Reducer / Superplasticiser Admixture For Concrete. Sikament NN is a highly effective dual action liquid superplasticiser for the production of high slump concrete or as a substantial water reducing agent. Sikament NN provides the following properties: As a Superplasticizer: Workability is greatly improved.
Superplasticizer compatibility with cement properties – A study
Our paper discusses the various effects of Superplasticizers on the properties of cementitious mixes and the contribution of its constituent mineral phases. More recently, a new type of...
Effect of Superplasticizers to Enhance the Properties of Concrete
This study aimed to study the effects of asuperplasticizing admixture, namely, Sikament-NN superplasticizer, on concrete properties, such as workability and compressive strength. Experiments were
- What is a superplasticizer admixture?
- Superplasticizers are a relatively new category of admixtures utilized for gaining higher strength at lower water/cement ratios. Mostly, these are chemical admixtures and interact with cement. Superplasticizers are chemically different from normal water reducers and are capable of reducing water content up to about 30%.
- What is a superplasticizer used for?
- Superplasticizers (SPs), also known as high range water reducers, are additives used for making high strength concrete or to place self-compacting concrete. Plasticizers are chemical compounds enabling the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more.
- What are concrete superplasticizing admixtures?
- Concrete superplasticizing admixtures are additives which when added in the concrete help in improving the consistency and flow of the concrete mix. Thus, allowing easy flow & spreading of concrete with addition of extra water.
- What is the difference between a plasticizer and a superplasticizer?
- Plasticizers are chemical compounds enabling the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more. These additives are employed at the level of a few weight percent. Plasticizers and superplasticizers also retard the setting and hardening of concrete.
- Can a superplasticizer be used to reduce water content?
- The use of superplasticizers allows this water reduction without affecting workability. Water reduction of up to 30% can be achieved and concrete with a w/c ratio below 0.28 has been placed successfully. Superplasticizers can be used to produce concrete with reduced cement content without changing the w/c ratio.
- What is a superplasticizer in concrete?
- Concrete basically consist of sand, cement, water, and aggregates. These ingredients tends to stick together, making the concrete mix thick and hard to handle. Use of superplasticizers brings a dynamic change in the mixture by reducing the surface pressure between the particles , making them freely flowable.
