Supporting the Concrete Industry Through Technical Expertise and High-Performance Admixture Solutions
CEMTECH National provides concrete admixtures, laboratory testing, mix design optimisation, and technical consulting services that improve concrete performance, consistency, and production efficiency.
Technical Services
Laboratory Testing
Concrete Admixture Solutions
About CEMTECH National
Premium Made Affordable
CEMTECH National is a South African manufacturer and distributor of high-performance concrete admixtures and construction performance solutions.
We help ready-mix, precast, dry-cast, infrastructure, and construction businesses improve concrete consistency, workability, strength, and production efficiency through practical technical expertise and dependable products.
Our lean management structure allows us to remain responsive, maintain strict quality control, and deliver exceptional customer support.
What We Do
We specialise in the formulation, blending, packaging, and distribution of concrete performance solutions designed to assist manufacturers and contractors in producing stronger, more consistent, and more efficient concrete products.
Our solutions support a wide range of applications, including:
Ready-mix concrete
Precast concrete production
Dry-cast manufacturing
Paving and block production
Infrastructure projects
General construction applications
Our services
Supporting the concrete industry through technical expertise, laboratory testing, and performance-enhancing admixture solutions.
Product Solutions
Concrete Accelerators
Designed to increase early strength development and reduce setting times, particularly in colder conditions or fast-track production environments.
Plasticisers, Cohesion Aids & Workability Enhancers
Admixture solutions designed to improve concrete workability, cohesion, and placement characteristics while reducing water demand. Particularly effective in high-strength concrete applications where enhanced flowability, consistency, and early strength development are required.
Superplasticisers & High-Range Water Reducers
Advanced admixtures that significantly improve flowability and workability while reducing water demand, resulting in enhanced strength, durability, and overall concrete performance.
Retarders
Controls setting times in hot weather conditions and complex pours, allowing greater flexibility during placement and finishing.
Mould Release Agents
Specially formulated products that ensure clean mould separation while improving surface finish quality and reducing production downtime.
Shutter Release Oils
Reliable release solutions for formwork and shuttering systems, promoting cleaner stripping and longer mould life.
Rescue Packs
Corrective admixture solutions designed to assist with on-site concrete challenges and help recover out-of-specification concrete where appropriate.
Technical Services
Material Grading Analysis & Diagnosis
Comprehensive aggregate and material grading assessments to identify inconsistencies, diagnose performance-related issues, and ensure compliance, consistency, and optimal concrete performance.
Mix Design Optimisation
Evaluation and refinement of concrete mix designs to improve strength, workability, production efficiency, and overall cost-effectiveness.
Comprehensive Laboratory Testing
Independent testing of finalised concrete products through our SABS-accredited laboratory partners, including compressive strength, tensile strength, abrasion resistance, and other performance assessments to verify quality, durability, and compliance with industry standards.
Supporting the concrete industry through technical expertise, laboratory testing, and performance-enhancing admixture solutions.
Our Approach
At CEMTECH National, we believe that operational excellence begins with discipline, consistency, and attention to detail.
Our business is intentionally structured around a small, agile management team that maintains direct oversight of daily operations, quality control, customer relationships, and product development. This lean approach allows us to remain responsive, efficient, and focused on delivering value to our customers.
We pride ourselves on operating a clean, organised, and professional facility where quality and consistency remain at the centre of everything we do.