Strike™
Early Strength Concrete

Rapid Strength Concrete System for Accelerated Construction Programs

Strike™ is a unique, specialist ready-mixed concrete system developed to meet the ever-increasing needs of fast-track construction. It delivers rapid strength development together with a clear, risk-free understanding of the in-situ strength of the structural unit. By enabling the early striking of formwork (between 4 and 24 hours from casting), the Strike system accelerates the works, targeting increased productivity and profitability. Strike concrete mixes are bespoke designs tailored to suit the specific strength gain requirements of your project program.

Benefits       Why Strike?       Applications       Specification       Related       Calculator       Contact Us

Benefits

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Rapid Formwork Striking

Formwork can be struck as early as 4 hours after casting, dependent on temperature and performance grade, enabling a faster construction cycle.

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Bespoke Design

Mixes are precisely designed to meet specific early strength gain requirements, ensuring fitness for purpose while minimising costs.

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Strength Verification

Placement may be supported by the Strike Now digital remote sensing service (unique to Holcim UK), providing an absolute value of in-situ strength for risk-free early striking.

Why STRIKE™

The Strike system offers contractors a significant competitive advantage by reducing construction times and potentially supporting up to two casting cycles in a 10–12 hour working day. This rapid cycle time is crucial for high-rise buildings and projects with extremely tight deadlines.


Strike concretes are designed for ease of placing and finishing, ensuring that the accelerated program does not compromise the quality of the finished element. By providing a clear and assured understanding of in-situ strength, the Strike Now service, when used, removes the risks typically associated with early formwork removal, providing confidence and certainty to the project team. The product conforms to the relevant European and British Standards.
 

Applications

Ideal for: 

  • High-Rise Construction: Ideal for rapid casting and re-use of formwork in multi-story concrete cores and structures.
  • Pre-Cast Applications: Enables the rapid demoulding of bespoke pre-cast elements, increasing production throughput.
  • Time-Critical Structures: Used in civil and commercial projects where rapid strength development is essential for accelerating the overall program.
  • Repetitive Casting: Supports up to two casting cycles per day, maximising on-site productivity and profitability.

Specification

Specification Detail

Value

Product TypeRapid Strength Ready-Mixed Concrete System
Striking Time4 to 24 hours from casting (temperature/grade dependent)
Mix DesignBespoke designs to suit specific strength gain requirements
ProductivityCan support up to two casting cycles in a 10–12 hour day
Verification ServiceSupported by the optional Strike Now digital sensing service
Manufacturing StandardConforms to BS EN 206:2013+A2:2021 & BS 8500-1:2023 and BS 8500-2:2023
Working LifeDesigned for optimal placement and finishing

Related Case Studies and News

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