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Difference Between Plasticizer And Superplasticizer in Civil

Difference Between Plasticizer And Superplasticizer in Civil

Important Point

  • What Is Plasticizer In Civil?
  • What Is Superplasticizer In Civil?
  • Difference Between Plasticizer And Superplasticizer in Civil
    • Plasticizer and Superplasticizer
    • Can Plasticiser Be Used in Concrete?
    • What Is Plasticizer for Concrete?
    • Superplasticizer in Concrete

What Is Plasticizer In Civil?

Plasticizer

Plasticizer us in concrete for workability, Strength, and Durability of concrete. Plasticizer in concrete for Water-reducing admixtures usually reduces the required water content for a concrete mixture by about 5 to 12 percent.

The use of water-reducing admixtures is defining as Type A in ASTM C 494. The WRA mainly affects the fresh properties of concrete.

Which is measured by the dilution indicated in ASTM C 143-90. Water-reducing admixtures that delay the initial setting time by more than three hours. It is classified as a water-reducing admixture with a debugging effect (Type D).

Commonly used water-reducing admixtures (WRA) are lignosulfonates and hydrocarboxylic acids. The use of hydro carboxylic (HC) acids as WRA requires higher water content (w/c) compared to the lignosulfonates. Rapid bleeding is a problem for concrete treated with hydro carboxylic (HC) acids.

Plasticizer

The increase in a slump is different according to its types and dosage. The typical dosage rate is based upon the cementitious material content (millilitres per hundred kilograms). The figure below illustrates the influence of the dosage of Lignosulfonates and HC acid on a slump.

It is shown in the figure that Hydro Carboxylic (HC) acids give a higher slump compared to lignosulfonates with the same dosage.

Water-Reducing Admixtures (WRA) has been used primarily in hot weather concrete pumping, placing, and tremie.

Careful concrete placement is required, as an initial setting time of cement will take place an hour earlier.

It is also shown that the use of Water-Reducing Admixtures (WRA) will give a higher initial concrete compressive strength by 10% compared to the control mixture.

Another benefit of using Water-Reducing Admixtures (WRA) is that higher concrete density is achieved, which makes the concrete less permeable and has higher durability.

Also, read: How Cement is Made | Cement Ingredients | History of Cement 

What Is Superplasticizer In Civil?

Superplasticizer

This Superplasticizers, also known as high range water reducers, same as a plasticizer, are chemical admixtures used where well-dispersed particle suspension is required.

Polymers are used as dispersants to avoid particle segregation also to improve the flow characteristics of suspensions such as in concrete applications.

Superplasticizer

Their addition to mortar or concrete allows a reduction of the water to cement ratio (W/C), not affecting the workability of the mixture, and enables the production of high-performance concrete and self-consolidating concrete.

This effect drastically improves the performance of the fresh, hardening paste. Strength of concrete increases when water to cement (W/C) ratio decreases.

Their working mechanisms lack a full understanding, revealing, into certain cases, cement-superplasticizer incompatibilities.

The addition of superplasticizer in during transit is a fairly new development within the industry.

Superplasticizer added in transit through automated slump management systems, such as Verify, allows concrete producers to maintain slump until without reducing concrete quality.

Also, read: What is Plum Concrete | Application | Mix Design | Methodology

Difference Between Plasticizer And Superplasticizer in Civil

Sr.No. Plasticizer Superplasticizer
1 To achieve a higher strength by decreasing the water-cement ratio at the same workability as an admixture free mix. Superplasticizer by Self-leveling, Self-compacting concrete and also Penetration and compaction round dense reinforcement
2 To achieve the same workability by decreasing the cement content so as to reduce the heat of hydration in mass concrete. Improved durability by removing water to reduce permeability and diffusion.
3 To increase the workability so as to ease placing inaccessible locations Reduced shrinkage, especially if combined with reduced cement content.
4 Water reduction of more than 5% but less than 12% Water reduction of more than 6% but less than 25%
5 This Plasticizer called water reducer This Superplasticizer called high range water reducer
6 It is an additive used to improve the plasticity of a certain substance It is a water-reducing admixture capable of producing large water reduction or great flammability
7 This increases the plasticity matricidal such as water reducer in a concrete mixture This further increases the water requirement for concrete mixture increase the strength and durability of concrete
8 Add plasticizer 0.1 – 0.5 % weight of cement Add Superplasticizer 0.5 – 3% weight of cement
FAQ

Plasticizer and Superplasticizer

Plasticizer: Plasticizers are used to increase the plasticity of polymer materials such as PVC and as a water reducer in concrete mixtures. Superplasticizer: Superplasticizers are used to further increase the water requirement for concrete mixtures, increasing the strength and durability of concrete.

Can Plasticiser Be Used in Concrete?

“Plasticizers or water reducers are chemical admixtures that can be added to concrete mixtures to improve workability. Unless the mix is “starved” of water, the strength of concrete is inversely proportional to the amount of water added or water-cement ratio.

What Is Plasticizer for Concrete?

Plasticizers are chemical compounds that enable 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 retard the curing of concrete.

Superplasticizer in Concrete

Superplasticizers (SP’s), also known as high range water reducers, are additives used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more.

 

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Suggested Read-

  • Difference Between Lap Length and Development Length
  • Tension Vs Compression | What Is Tension & Compression
  • Difference Between Plinth Level, Sill Level, and Lintel Level
  • Difference Between One Way Slab and Two Way Slab | What is Slab
  • Difference Between Timber And Wood | What is Wood | What is Timber
  • Difference Between Bridge and Culvert | What Is Bridge | What Is Culvert
  • Difference Between Flyover and Bridge | What Is Flyover | What Is Bridge
  • Difference Between M Sand Vs River Sand | What is M-Sand & River Sand
  • Difference Between Footing and Foundation | What is Footing and Foundation
  • Difference Between OPC Vs PPC | What is Cement | OPC Cement | PPC Cement
  • Difference Between Short Column and Long Column | What Is Column | Type of Column
  • Difference Between Mortar and Concrete | What Is Mortar & Concrete | Type of Mortar &Concrete
  • Difference Between Flexible Pavement and Rigid Pavement | What is Pavement | Type of Pavement
  • Difference Between Pre-Tensioning and Post-Tensioning | What Is Prestressed | Methods of Prestress

By Krunal Rajput

About Krunal Rajput

Hey, I am Krunal Rajput. The Man Behind CivilJungle. I started this site to spread knowledge about Civil Engineering. I am a Degree Holder in Civil Engineering.

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Comments

  1. Engr ebraheem says

    20th March 2022 at 7:03 am

    Good morning Sir
    I want
    Concrete superplasticizer
    Delivery to Jordan Irbid
    50 liter
    Please
    How much be it ?

    Reply

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