Admixtures and additives for concrete - PCC Group
This group includes superplasticizers that reduce the amount of mixing water by 12-40%. The best results can be obtained by using polymer concrete admixtures. As a result of their action, the concrete mix is liquefied, the porosity of the concrete decreases, and its durability and strength increases.
Mid Range Water Reducing Admixture - Afzir co
MWR concrete additive is a type of super- plasticizer, super-reducer of concrete water, and its mechanism of action is based on the distribution of cement particles inside the concrete. This type of additive is formulated based on Poly Naphthalene Sulfonate and meets the requirements of ASTM C494. MWR concrete admixture improves the
Chemical Admixtures - Cement
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.
[PDF] Water-Reducing and Plasticizing Additives for Highly
The paper presents the results proving the possibility of using the super-plasticizer of the type Linamix PC in highly mobile and cast concrete mixes for the production of high-strength concrete. The paper gives results of raw materials tests for the preparation of monolithic compositions of highstrength concrete and a comparative assessment of the quality indicators of chemical additives
Multi-range water-reducing plasticiser additive Conplast MR260
The resulting properties of concrete containing more than one admixture should be checked by prior testing. Conplast MR260 is suitable for use with all cements complying with RC-08. Reduction of water permeability. One of the most effective means of reducing the permeability of a concrete mix is to reduce the water/cement ratio.
- What are plasticizers & water reducers?
- Plasticizers and water reducers are chemical admixtures used to make concrete more workable. Unless the mixture is “starved” of water, increasing the w/c ratio reduces the concrete’s strength. An increase in durability is achieved by decreasing the water content (without “starving” the concrete).
- How do plasticizers and water reducers affect concrete strength?
- Since the heat of hydration of mass concrete goes down when the cement weight goes down, plasticizers can do this. Plasticizers and water reducers are chemical admixtures used to make concrete more workable. Unless the mixture is “starved” of water, increasing the w/c ratio reduces the concrete’s strength.
- What is the difference between water reducing and superplasticizer?
- Water-reducing plasticizers reduce the amount of water needed in the concrete mix, while superplasticizers can increase the workability of the concrete without increasing the water content. Retarding plasticizers slows down the setting time of the concrete, which can be useful in hot or dry weather conditions.
- Can super plasticizers reduce water content in concrete mix?
- The use of super plasticizers can permit the reduction of water in the concrete mix upto 30% without producing any ill effect on the workability of the concrete i.e. without reduction in the workability of concrete, where as normal plasticizers with doses upto 0.1 to 0.4% by weight of cement can reduce water content from 5 to 15%.
- 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 superplasticizers & plasticizers?
- Our concrete superplasticizers and plasticizers for the production of quality concrete, ready-mixed/construction site concrete and precast parts made of reinforced and prestressed concrete. Quality and profitability with concrete superplasticizers and concrete plasticizers from Rhein-Chemotechnik GmbH.
