Use of Water Reducers, Retarders, and Superplasticizer
The use of superplasticizers may produce high strength concrete (compressive strength up to 22,000 psi). Superplasticizers can also be utilized in producing flowing concrete used in a heavy reinforced structure with inaccessible areas. Requirement for producing flowing concrete is defined in ASTM C 1017.
Chemical Admixtures - Cement
Accelerating admixtures are especially useful for modifying the properties of concrete in cold weather. Superplasticizers, also known as plasticizers or high-range water reducers (HRWR), reduce water content by 12 to 30 percent and can be added to concrete with a low-to-normal slump and water-cement ratio to make high-slump flowing concrete.
Influence of Superplasticizer Type on the Compressive
in concrete. INTRODUCTION Reactive powder mortar (RPM*) is a special high-strength, fiber-reinforced, ... the SNF or SMF superplasticizer: the 28-day compressive strength was about
Influence of Superplasticizer Type on the Compresive Strength
Reactive powder mortar (RPM) mixtures cured at room temperature with different portland cement, silica fume and steel fibers were manufactured. The influence of the super-plasticizer type on the RPM performance - in terms of w/c and compressive strength was studied.
EFFECT OF SUPERPLASTICIZER ON PROPERTIES OF MORTAR - ResearchGate
Twenty concrete mixes were prepared, keeping the water/cement ratio constant at w/c = 0.40, with different amounts of SP admixture, and NS. the superplasticizer was studied in the range of (0
- Is SMF a soluble melamine formaldehyde resin based superplasticizer?
- SMF is a soluble melamine formaldehyde resin based superplasticizer. It has no air-entraining. A chloride free admixture based on melamine formaldehyde, formulated for the production of rheoplastic concrete. Available as a liquid, or in powder form which must be dissolved in water prior to use.
- Is SMF a chloride-free admixture?
- SMF is a soluble melamine formaldehyde resin based superplasticizer. It has no air-entraining. A chloride-free admixture based on melamine formaldehyde formulated for the production of the plastic concrete. SMF is a soluble melamine formaldehyde resin based superplasticizer. It has no air-entraining.
- What is peramin SMF?
- Peramin SMF range can also be used in combination or association with Peramin AXL, CONPAC, DEFOAM and SRA additives. Peramin SMF are sulfonated melamine polymers. It is the reference range of conventional plasticizers for drymix mortars, gypsum and concrete materials.
- Which peramin SMF is best for dry-silo mortars?
- Peramin SMF 10 is the reference grade for all applications. Peramin SMF 11 enhances flow and is especially recommended for dry-silo mortars. Peramin SMF 20 has a low release of free formaldehyde. Peramin SMF 22 also has a low release of free formaldehyde and comes especially recommended for use with calcium sulfate binders.
- What is a superplasticizer?
- It is the reference range of conventional plasticizers for drymix mortars, gypsum and concrete materials, due to their consistency, robustness and excellent cost-performance ratio. As a superplasticizer, it enables users to achieve high flow properties and reduce water content in self leveling compounds and screed technology.
- How much peramin SMF should be used?
- Typically, the dosage normally lies in the range of 0.1%-0.8% of the dry mortar total weight, depending on the kind of superplasticizer and performance required. During its initial stage of use, Peramin SMF provides a long working time, flowability and water reduction. During setting, it provides consistency, robustness and regularity of color.
