What is G•ROCK?

A Cross Between Rock & Steel

G•ROCK Ultra-High Performance Concrete (UHPC) is an advanced, very-high-density fiber reinforced mineral concrete that delivers ultra-high compressive and flexural strength with exceptional elastic and ductile performance.  It’s ductility under tension is similar to steel and designed to deform under high tensile stress without failing.  This makes possible much longer, thinner and lighter self-supporting structural precast and 3D printed elements; as well as graceful and innovative architectural forms not possible with lesser concretes and building materials.   

G•ROCK is extremely durable and essentially immune to the severe life-cycle limiting flaws of lesser concretes.  G•ROCK built products are expected to have extended service lives, resulting in less environmental impact over time and low-to-no life-cycle costs — MIT estimates UHPC has a 16,000 year life cycle. 

Mechanical Performance

G•ROCK vs. Conventional Concrete (CC)

G•ROCK Compression

Up to >25,000 psi

CC Comp. 

Avg. 3,500 psi

G•ROCK Flexural 

Up to >4,000 psi

CC Flex

Avg. 400+ psi

Why G•ROCK?

If you’re a builder…What would the following value points mean to your bottom line and competitive advantage?

  • 70% LESS MATERIAL to achieve the same structural performance as conventional concretes
  • Substantially faster set and cure times
  • Vastly superior mechanical performance
  • Eliminate or greatly reduce the need for steel reinforcement

If you’re a built asset owner…You know concrete’s many defects have a huge impact on the appearance, maintenance costs, safety and effective life of your built assets. Concrete defects cost building and critical infrastructure owners billions in annual losses.

What would it mean to you if your concrete built assets were virtually immune to these defects and economic losses? 

Faster, Stronger, More Durable, Greener, Healthier, More Cost-Effective

G•ROCK IS TO CONVENTIONAL CONCRETE WHAT
JET ENGINES ARE TO PROPELLER ENGINES

  • Photo of LEED Platinum Logo
    GREENER

    Power Tool for attaining LEED Gold & Platinum Certification: Carbon Negative: Recyclable; Non-Toxic; Less Embodied Energy; More...

  • Photo of Clock
    EARLY SET AND HIGH STRENGTH CURE

    >3,500 psi in 8 hours
    >6,000 psi in 12 hours
    >25,000 psi in 28 days

  • Photo of Strength and Durability
    EXTREME DURABILITY

    Resists extreme seismic loads, high impact forces, ballistics, severe environmental conditions.  Immune to water, chlorides and chemical infiltration, freeze/thaw

  • MORE COST EFFECTIVE AND PROFITABLE

    Costs up to 10 times LESS than competing UHPCs.  Can be cost competitive to conventional concrete.

G•ROCK video Overview

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