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High Early Strength Concrete
What is a high strength concrete (HSC)?
High strength concretes with a high compressive strength of > 60 MPa after 28 days are classified as high performance. They can be used in many different structures due to their versatile technical performance characteristics. HSC readymix is often a key component of high load bearing columns, high rise building and for many precast products.
Micromix Toproc Rapid concrete is technologically advanced, ensuring fast turnaround and increased construction site efficiency. It’s easy to place (the same as conventional concretes) and it develops extremely high mechanical resistance soon after pouring. This makes it suitable for all construction sites and applications.
Types of high early strength readymix concrete
TOPROC RAPID 15h.
10 to 30 N/mm2, typical high early compressive strength (at specified time) where guaranteed high strength is specified at 15 hours.
TOPROC RAPID 24h.
10 to 40 N/mm2, typical high early compressive strength (at specified time) where guaranteed high strength is specified at 24 hours.
TOPROC RAPID 48h.
10 to 50 N/mm2, typical high early compressive strength (at specified time) where guaranteed high strength is specified at 48 hours.
TOPROC RAPID Specify.
10 to 70 N/mm2 typical high early compressive strength (at specified time) where guaranteed high strength is required within a timeframe specified by the project.
High early strength concrete applications
- High load bearing columns
- Walls
- Beams
- Slabs
- Panels
- Precast products
- Tunnels
- Roads
- High walls
Benefits of high early strength concrete
- Increases productivity with a faster construction time
- Cost-effective
- Very durable concrete
- Improved service life of structure
- Ensures you can meet construction deadlines
Quality assured concrete from Micromix
At Micromix, you can enjoy same-day delivery of high early strength readymix concrete. We use small, agile delivery trucks, meaning we can deliver concrete to your site quickly and efficiently. We’re part of the Tarmac group and the BSI Kitemark scheme, offering you the highest quality product available. As a result, you can meet deadlines and create a durable, long-lasting structure.
In addition to high early strength concrete, we also have standard, design, fibre reinforced, flowing, waterproof, general, reinforced, self-compacting and paving concrete options available.
Contact us today to learn more about our competitive prices.
Frequently asked questions
Why use high early strength concrete?
High early strength concrete is used for projects where quick turnaround times are crucial, or you need to speed up the construction process to meet deadlines. By using this type of concrete, you can accelerate construction schedules, increase productivity on site, and reduce the overall project duration and costs.
How long does it take for high strength concrete to set?
How long it takes for high early strength concrete to set depends on the type you use. For example, at Micromix, you can buy Toproc Rapid concrete that has guaranteed strength in 15, 24 or 48 hours. Alternatively, you can specify when you need the concrete to be classified as high strength by.
Let's talk concrete.
Call our friendly team for guidance, product advice, and a tailored quote for your project.

Quality concrete assured
Using our experience and knowledge we are here to advise on any project requirement. We offer a wide range of readymix and high performance concretes. Our team is here to create the perfect solution to meet your exact requirements, no matter how specific they may be. We offer a range of concrete additives and admixtures to tailor your concrete solution.
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Why choose Micromix readymix concrete
Competitive concrete prices
Prompt, reliable and friendly service
Same day delivery
Experienced sales team who can offer advice for end use suitable mixes
Specialising in small loads of concrete from 0.5m3 to 4m3
FORS accredited drivers
Small agile delivery trucks = better site access and less risk of damage
Ask us about low carbon concrete options with CEVO
Types of concrete & screed
Micromix Ready Mix Concrete High Early Strength Concrete
We cannot be held responsible for any variation in size of the actual delivery vehicle due to the numerous and varied minimix concrete trucks within our fleet. Please contact a member of our team if you have very specific access issues and we will be happy to arrange a site visit.
The truck dimensions are for indication / illustration purposes only.

Max Gross Weight: 18 Tonnes
Width: 9ft 8in (294cm)
Length: 21ft 10in (665cm)
Height: 12ft (366cm)
What our customers say
The experience with the MICROMIX team was one of efficiency and reliability - a great company to deal with from the initial order through to the onsite support at the pour.
Your local concrete experts
We are your local minimix concrete and flowing screed supplier in Scotland, North East, and Yorkshire including Doncaster, Sheffield, Leeds and the surrounding areas. We supply concrete to projects of all sizes and offer same day concrete delivery.
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To order minimix readymix concrete and screed you can choose from: