Best Admixture for Concrete: Types, Uses & How to Choose

The best admixture depends on the project goal, such as improving workability, controlling setting time, increasing durability, or reducing water permeability. Common concrete admixtures include plasticisers, accelerators, retarders, and integral waterproofing admixtures, each serving a specific purpose. For moisture protection, an integral waterproofing admixture such as Dr. Fixit Pidiproof LW+ can help reduce water permeability. For a 50 Kg bag of cement, you must add around 200 ml of Dr. Fixit Pidiproof LW+ to the mix as per the product guidelines.

Share On:

Choosing the best admixture for concrete starts with identifying your project requirements. An admixture is added to concrete or mortar to modify specific properties. These can include workability, setting behaviour, durability and water resistance.

For construction where moisture protection is important, you also need to apply an integral waterproofing solution without fail. 

 

What is a concrete admixture?
 

Definition & purpose
 

A concrete admixture is a material added to a cement-based mix. It changes one or more properties of fresh or hardened concrete.

Depending on its formulation, an admixture can help:
 

• Improve workability
   
• Control setting time
   
• Support concrete strength development
   
• Reduce water permeability
   
• Improve durability
   
• Reduce shrinkage-related cracking
   

The correct choice depends on the mix design, application and required performance. 

 

Types of Admixtures
 

Different admixtures address different construction requirements.
 

Select an admixture solution based on the intended performance.

 

Which Admixture Is Best for Concrete?
 

Ultimately, the best admixture depends on your construction needs. Each admixture has its own use cases, and a professional can help you choose the right option for your project. 
 

Match admixture to your goal

The best admixture for concrete depends on the job’s requirements. However, note that integral waterproofing is always recommended during construction. Without waterproofing, water exposure can easily damage your walls, foundation, floors, and roof. 

Water damage remains one of the most common causes of cracks and structural deterioration, especially in rain-prone or coastal areas with high humidity. That is why you should always include a waterproofing admixture in your project. The right waterproofing product can secure your building from water damage for a decade or more, reducing the constant need for repairs or renovations. 

 

How to Use Dr. Fixit Pidiproof LW+
 

Dr. Fixit Pidiproof LW+ is a suitable admixture for most projects. You can add it to concrete or plaster to reduce water permeability while improving workability and cohesiveness. 

You can use Dr. Fixit Pidiproof LW+ in multiple areas, including roofs, columns, supporting beams, and water-retaining structures. It can be used for internal or external surfaces.
 

Dosage & tips
 

For every 50 kg bag of cement, use around 200 ml of Dr. Fixit Pidiproof LW+. For concrete, the product’s technical data sheet recommends mixing cement and aggregates in the concrete mixer first.

Do not add Dr. Fixit Pidiproof LW+ directly to dry cement, and do not increase the recommended amount. Maintain a suitable water-cement ratio and cure the concrete using good construction practices. 

If you need further guidance on the best waterproofing chemicals for construction, then fill out the form below to connect with Dr. Fixit’s expert consultants. 

 

Frequently asked questions

Which is the best admixture for concrete?

The best admixture for concrete depends on the required performance. Dr. Fixit Pidiproof LW+ is designed for concrete mixtures.


What are the types of concrete admixtures?

Common types include plasticisers, accelerators, retarders and integral waterproofing admixtures. Each addresses a different construction requirement.


What does an integral waterproofing admixture do?

An integral waterproofing admixture is added to concrete or mortar during mixing. It reduces water permeability in the cement-based material.


How much Dr. Fixit Pidiproof LW+ should I add per bag of cement?

200 ml Dr. Fixit Pidiproof LW+ must be added for every 50 kg bag of cement, as specified by the product information.


Does an admixture replace a waterproof coating?

Not necessarily. An integral admixture works within concrete or mortar. A waterproof coating protects the prepared surface. Depending on the structure, both may form part of a broader waterproofing system.