Concrete admixtures are specialised additives blended into a concrete mix to modify its properties for specific performance outcomes. At Sussex Ready Mix Concrete, we offer a range of admixture options designed to enhance workability, strength, durability, and curing characteristics — helping you get the best results for your project.
Admixtures are widely used in commercial, contractor, and structural applications where standard concrete isn’t enough. Whether you need improved flow for pumped concrete, extended workability in warm conditions, or enhanced strength for critical pours, we can tailor the mix to suit.
Concrete admixtures are substances added during mixing that change the behaviour or properties of the concrete. They work by altering the hydration process, improving performance under certain conditions, and helping the concrete meet specified performance criteria.
Common categories include performance-enhancing, set-controlling, and durability-boosting admixtures.
Water-Reducing Admixtures
These reduce the amount of water needed in a mix without compromising workability. This often enhances concrete strength and reduces shrinkage — ideal for structural and high-load applications.
Retarding Admixtures
Retarders slow down the setting time of concrete, which is useful in hot weather, long haul conditions, or when extended placement time is needed.
Accelerating Admixtures
Accelerators speed up the initial set time — beneficial in cold weather, fast-track projects, or early strength requirements.
Plasticising / Superplasticising Admixtures
These improve the flow and workability of the mix without adding extra water, making them helpful for pumped concrete or smooth finish requirements.
Fibre Reinforcement
While technically a separate category, fibres are often added to enhance crack resistance and impact performance in slabs and flatwork.
If you require a specialist admixture not listed here, please contact us — we can advise on suitability and availability.
Using admixtures allows you to:
Improve workability and placement
Control setting time for site conditions
Increase strength or durability
Reduce the risk of cracking and thermal shrinkage
Enhance pumpability for complex pours
These benefits are particularly valuable on commercial and contractor jobs with tight specifications and performance expectations.
Admixtures are added during the mixing process, using precise measurements based on mix design and project requirements. With our volumetric mixers, we can adjust the admixture dosage on site to ensure performance objectives are met without compromise.
Before delivery, we review your requirements and confirm the correct combination of mix design and additives to achieve your desired results.
We supply admixture-enhanced concrete throughout:
Haywards Heath, Brighton, Worthing, East Grinstead, Lancing, Uckfield, Burgess Hill, and surrounding Sussex areas.
Whether you’re managing a commercial build, a specialist contractor job, or performance-critical application, we can tailor the concrete to your needs.
Need help selecting the right admixture for your project? Our experts can guide you through the options and recommend a solution that meets your performance goals.
Sussex Ready Mix Concrete is your local trusted provider of high-quality concrete and screed. Enjoy fast delivery, with same or next-day options available across the region. Unsure if we cover your area? Quickly check our areas we cover page or give our friendly team a call.
Take a look where we deliver our ready mix concrete throughout East and West Sussex.
