OtB Concrete Ltd is an international consultancy providing expertise and an overall approach to the specification, design and implementation of concrete technology. Our specialists give a personalised service to all types of clients — from the initial setup and mix design to a final "Outside the Box" concrete solution engineered to meet the structure's needs and the environment.
From maturity monitoring to architectural finishes, our consultants cover the full lifecycle of concrete on complex projects. Click any service to learn more.
Specification and design review for aggressive environments, long-life structures and infrastructure assets.
Learn moreTesting strategies, interpretation and technical reporting for strength, heat, shrinkage and durability.
Learn morePractical mix design support for performance, durability, programme and site placement requirements.
Learn moreConcrete technology advice for segmental linings, shafts, tunnels and below-ground construction.
Learn moreMix design and specification for C60–C100+, UHPC, SCC and fibre-reinforced concrete systems.
Learn moreDelivering consistent off-form finishes, colour uniformity and surface quality for visible structures.
Learn moreProTest in-situ temperature and strength monitoring for striking, loading, post-tensioning and cold-weather concreting decisions.
Learn moreIndependent technical opinion, investigation and evidence for concrete-related disputes.
Learn morePractical review of designs for site constructability — bridging design intent and on-site reality.
Learn moreCONTEST monitoring for heat of hydration, thermal cracking risk and strength development.
Learn moreSpecification and design review for aggressive environments, long-life structures and infrastructure assets.
Learn moreTesting strategies, interpretation and technical reporting for strength, heat, shrinkage and durability.
Learn morePractical mix design support for performance, durability, programme and site placement requirements.
Learn moreConcrete technology advice for segmental linings, shafts, tunnels and below-ground construction.
Learn moreMix design and specification for C60–C100+, UHPC, SCC and fibre-reinforced concrete systems.
Learn moreDelivering consistent off-form finishes, colour uniformity and surface quality for visible structures.
Learn moreProTest in-situ temperature and strength monitoring for striking, loading, post-tensioning and cold-weather concreting decisions.
Learn moreIndependent technical opinion, investigation and evidence for concrete-related disputes.
Learn morePractical review of designs for site constructability — bridging design intent and on-site reality.
Learn moreCONTEST monitoring for heat of hydration, thermal cracking risk and strength development.
Learn moreSpecification and design review for aggressive environments, long-life structures and infrastructure assets.
Learn moreTesting strategies, interpretation and technical reporting for strength, heat, shrinkage and durability.
Learn moreOur consultants bring decades of site, design and research experience to every project.
OtB personnel have been instrumental in the design and execution of concrete works for some of the world's most demanding and iconic structures.
Whether you need specialist advice on an ongoing project, a review of your concrete specification, or a long-term monitoring solution — we'd like to hear from you.