Concrete Admixture in Pakistan: Types & Which to Use 

Quick Answer

The right concrete admixture depends on what you need for your project. Zahabiya ConcrePlaste CP-16/40 is a superplasticizer built for high-strength concrete, precast work, and better workability with less water. Admix C waterproofs foundations, basements, retaining walls, water tanks, and other water-exposed areas from within the concrete itself. Concremight ZUBA-16/123 and SBR Latex Emulsion SBR-160 work well for plaster, screeds, restoration, and bonding fresh concrete to old. Concremight ZUBA-16/127 is built for grouting, sealing, and concreting in saline, waterlogged, marine, or coastal conditions.

What Is a Concrete Admixture?

A concrete admixture is a material added to concrete to improve one or more of its properties. Depending on the product, it might boost workability, cut down on water, slow or speed up setting, improve water resistance, or strengthen how well it bonds.

You usually only need a small amount, and exactly how much depends on the product and the job in front of you.

The simplest way to think about it: pick the admixture based on what you actually need your concrete to do.

What Are the Main Types of Concrete Admixtures?

There are plenty of admixture types out there, but you don’t need to memorize all of them. Start with your project, figure out what it needs, and let that point you toward the right type.

1. Water-Reducing Admixtures

Water-reducing admixtures make concrete easier to work with while using less water in the mix. That gives you the workability you need without pouring in extra water, which would otherwise weaken the concrete.

2. Superplasticizers

Superplasticizers take that same idea and push it much further, improving workability at a far lower water level than a standard water reducer could manage.

Zahabiya ConcrePlaste CP-16/40 is a naphthalene sulphonic acid based, chloride-free admixture with these superplasticizing properties. It meets ASTM C494 Type A and D, and depending on the dosage and mix, it can cut water use by 20 to 22 percent.

Here’s how that plays out in strength, based on lab testing (a higher number means stronger concrete):

At the 1.25 percent dosage, 28-day strength reached 44 N/mm², well ahead of the 26 N/mm² recorded for the control mix.

3. Retarding Admixtures

These slow down how fast concrete sets, which matters a lot in hot weather, when concrete can stiffen before you’ve even finished placing it. ConcrePlaste CP-16/40 does this too, on top of reducing water, so it covers both jobs in one product.

4. Crystalline Waterproofing Admixtures

Zahabiya Admix C is a grey powder that reacts inside the concrete and grows tiny crystals within its pores. These crystals block water from getting in, and can even seal small cracks, up to 0.4 mm, on their own, as long as there’s some moisture around to trigger the reaction. It also cuts water demand by 5 to 15 percent.

Independent lab testing backs this up:

Less water getting through, while strength holds steady or even improves, is exactly what you want from a waterproofing admixture.

5. Polymer and Latex Modifiers

Polymer and latex products earn their keep when you need better bonding, more water resistance, or stronger performance in plaster, screeds, and repair work.

Concremight ZUBA-16/123 is a blend that strengthens concrete, improves bonding to other surfaces, and resists water. In testing, it brought water absorption down from 2.7 percent to under 1.5 percent, and salt absorption from 3.2 percent to under 1.2 percent, both signs of a tougher, longer-lasting mix.

SBR Latex Emulsion SBR-160 is the more budget-friendly option, and it’s commonly used for screeds, plaster, patch repairs, and bonding new concrete to old.

6. Grouting and Sealing Admixtures

For grouting, sealing, and concreting in areas exposed to water or salt, Concremight ZUBA-16/127 is built with exactly that in mind. It’s a concentrated latex and co-polymer reinforced admixture recommended for saline, waterlogged, marine, and coastal conditions, as well as basements, underground water tanks, and foundations. It meets ASTM C494 Type A.

Which Admixture Should You Use?

The easiest way to choose is to start with your project and the result you’re after.

Always check the product datasheet before settling on your final choice.

How Much Admixture Per 50 kg Bag of Cement?

There’s no single dosage that fits every admixture. Each product comes with its own recommended amount, and the right figure also shifts depending on the job.

ZUBA-16/123 also has different dosages depending on the job. 0.5 kg per bag for plastering and screeding, 2.5 to 3.0 kg for non-shrink grouting, and 1.5 to 2.5 kg for industrial and warehouse flooring.

Always confirm the final dosage against the product datasheet. Trial mixes are recommended for products like ConcrePlaste and Admix C, and ConcrePlaste’s final dosage should be verified on site under your engineer’s direction.

Why Does Curing Still Matter?

Adding an admixture doesn’t remove the need for proper curing.

This matters especially with Admix C, since Zahabiya notes that water is needed for its crystals to keep growing inside the concrete. Regular curing is what keeps that process going.

If water is limited on your site, Zahabiya also offers Concrecure-WB, a water-based curing compound that meets ASTM C309 Class A. It forms a film that helps reduce early water loss from fresh concrete and plastered surfaces.

Conclusion

Choosing a concrete admixture gets a lot easier once you know what you need first.

For better workability and lower water use, ConcrePlaste CP-16/40 is worth a look. For waterproofing from within the concrete, Admix C is built for structures that come into regular contact with water. For bonding, plaster, screeds, and repair work, ZUBA-16/123 or SBR-160 tend to fit the job. For grouting, sealing, and saline or waterlogged conditions, ZUBA-16/127 is designed for exactly that.

Before you buy, check the product’s application, dosage, and datasheet, so the admixture actually matches your project.

Zahabiya Chemical Industries has been manufacturing and exporting construction chemicals from Karachi since 1972, including concrete additives, waterproofing products, and related materials.

You can browse the Cement Additives & Mortars range, or contact Zahabiya directly for product and dosage guidance.

FAQs

Can I add admixture directly to cement? 

It depends on the product. ConcrePlaste CP-16/40 should go into the batching or final mix water, not straight into dry cement, and ZUBA-16/123 follows the same rule, mixed with potable water first. Admix C works a bit differently: Zahabiya recommends adding it after the cement, sand, and aggregates are already in the mix, followed by thorough mixing.

Does admixture reduce the amount of cement needed? 

It can, in some mix designs, though that shouldn’t be assumed for every project. Water-reducing admixtures let a mix use less water for the same workability, and that sometimes allows for lower cement content too. Any change to cement quantity should still be confirmed through the mix design and a trial test.

What’s the difference between a plasticizer and a superplasticizer?

 Both improve workability while cutting down on water, just to different degrees. ConcrePlaste CP-16/40 is a water-reducing admixture with superplasticizing properties, and depending on dosage and mix, it can deliver up to 20 to 22 percent water reduction.

Which admixture should I use for a water tank or basement? 

For waterproofing from within the concrete, Zahabiya Admix C is built for foundations, basements, retaining walls, water tanks, swimming pools, and reservoirs. ZUBA-16/123 also works for basements, tanks, and pools, so the right pick depends on the type of work and the specific properties you’re after.

Is admixture safe for steel reinforcement? 

It depends on the product, so it’s worth checking before use. ConcrePlaste CP-16/40 is chloride free, and Zahabiya’s datasheet confirms it doesn’t contribute to or speed up corrosion in steel reinforcement.