Influence of GGBS on Rheology of Cement Paste and Concrete with SNF and
Superplasticizers (SP) are used to improvethe workability of concrete at low water-cement ratios and increase the compressive strength by reducing it. But, this work-ability is sometimes lost...
Concrete Admixtures in Nigeria [plasticizers and superplasticizers
Admixtures are normally provided as water based solutions and can be added to the concrete at up to 5% on cement weight, although most types are added at less than 2.0% and the majority are at less than 1.0%. BETOCRETE-FN is a high-range water-reducing super- plasticizer“ formulated to produce rheoplastic concrete in hot climates.
studies on compatibility issues of super plasticizers
a SNF based Super plasticizer. The water - cement ratio is considered are 0.35 and 0.4. The dosage of Super Plasticizer (Master Glenium ACE 30) started from 0.6% to 1.4% with respect to cement.
Dosage Limit Determination of Superplasticizing Admixture and Effect
According to I. B.Muhit (2013), the maximum strength for concrete is obtained from a fixed dosage percentage of super-plasticizer and it is exactly 1.0% by weight of cement and the effective...
Concrete Superplasticizer - High Range Water Reducer in Kingsun
The superplasticizer for concrete has the functions of high-efficiency water reduction, retardation, slump retention and reinforcement. This product has strong adaptability to cement, less dosage, and is easy to use. It is especially suitable for concrete projects that require high-efficiency water reduction and retardation.
- What is SNF superplasticizer?
- SNF superplasticizer helps to improve the strength and durability of concrete. By reducing the pores and cracks in concrete, reducing water penetration and erosion, the service life of concrete structures can be extended. Sodium naphthalene superplasticizer can also improve the performance of cement.
- What is naphthalene superplasticizer?
- The naphthalene superplasticizer can improve the workability of concrete, reduce the segregation and bleeding of concrete during mixing, transportation, and pouring, and improve the density and uniformity of concrete. SNF superplasticizer helps to improve the strength and durability of concrete.
- Which superplasticizer admixture is better?
- Based on the findings, out of three superplasticizers, PC—based admixture showed a better improvement in strength aspects compared to other mix. Compressive strength of UHPC (a) SNF admixture (b) SMF admixture (c) PC admixture
- Why does SNF Based super plasticizer have high fluidity?
- SNF-based super plasticizer possesses high fluidity due to reduced monomer and increased molecular weight. Retardation of the cement hydration depends on the molecular weight where the higher the molecular weight, higher the retardation [65, 66].
- Is SNF powder suitable for fresh concrete?
- SNF powder is suitable for fresh concrete with excessive slump loss over time and poor flowability. Polynaphthalene sulfonate can also make fresh concrete have good workability and can make concrete obtain good slump retention.
- What is the maximum tensile strength of a superplasticizer?
- The maximum split tensile strength at 28 days of testing for all cases was found to be 29.09 MPa—SNF based, 30.72 MPa—SMF based, and 31.23 MPa—PC-based admixture, respectively, at 1.5% of dosage (Fig. 6). Therefore, the effect of superplasticizers mainly influences the workability of concrete rather mechanical properties.
