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.
Delay Set Superplasticizer | Fritz-Pak | Concrete Admixtures
Overview. Fritz-Pak’s Supercizer 7 is not only a premium superplasticizer, it is a delay set superplasticizer. This powerful product offers the benefits of both a high-range water reducer and a set retarder. It is recommended for use in a variety of formwork, including ICF, to provide the correct flow and strength while also reducing the risk
Polycarboxylate Superplasticizer Powder & Liquid for Concrete
Polycarboxylate superplasticizer (High Slump Retention) is clear transparent liquid. It keeps the slump of concrete well, and can prolong the slump retention time of concrete. What’s more, PCE superplasticizer also shows great performance in hot environments. The packing of PCE liquid is 230kg PE drum, 1100kg IBC tank or flexitank.
SikaPlast-257 | Superplasticizers & Set Retarders
SikaPlast -257 is a third generation polymer based high performance superplasticizer for producing soft consistency concrete. Sika Plast-257 meets the requirements of ASTM C 494 Type D & G. SikaPlast -257 combines diffent modes of actions. By adsorption on the surface of the fines and keeping them apart while the hydration is in progress
CBD-203. Superplasticizers in Concrete - NRC-IRC
A superplasticizer is one of a class of admixtures called water-reducers that are used to lower the mix water requirement of concrete. Normal water-reducers based on lignosulphonic acids, hydroxycarboxylic acids or processed carbohydrates are capable of reducing water requirements by about 10 to 15 per cent.
- 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 is a polycarboxylate ether superplasticizer?
- The polycarboxylate ether superplasticizer is an additive commonly used in concrete engineering and has a wide range of applications. The PCE based admixture can significantly reduce the amount of cement and improve the fluidity and pumpability of concrete while ensuring the strength and durability of concrete.
- What is polycarboxylate superplasticizer?
- Polycarboxylate superplasticizer (PCE), the third generation of high-performance water reducer (water reducing admixture), follows the development of ordinary plasticizers and superplasticizers. It significantly reduces water content while enhancing concrete's workability, strength, and durability.
- How many liters of superplasticizers per cubic meter of concrete?
- Typical dosage of superplasticizers used for increasing the workability of concrete ranges from 1 to 3 liters per cubic meter of concrete where liquid superplasticizers contained about 40 % of active material. In reducing the water cement ratio, higher dosage is used, that is from 5 to 20 liters per cubic meter of concrete.
- Can superplasticizers produce high strength concrete?
- 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.
- Can polycarboxylate based superplasticizer improve the crack resistance of concrete?
- The polycarboxylate based superplasticizer can improve the crack resistance of concrete. After adding an appropriate amount of water reducing agent in concrete, the internal structure of the concrete can be improved and the contraction and cracking of concrete can be reduced.
