From towering skyscrapers to single family homes, concrete masonry units or CMU, have played an integral role in shaping our built environment. However, concrete is an energy intensive material that contributes to the massive footprint of the construction sector. At the same time, plastic pollution has become a significant environmental crisis plaguing our planet. What if we could deal with these 2 problems at the same time? Could we lower the carbon and energy footprint of concrete blocks by replacing cement and concrete with recycled plastic?
Introduction
he Lok N Blok system is an easy-to-install, mortar-less, interlocking building block that streamlines installation and reduces the need for specialized equipment. It is composed of a proprietary mix of recycled polypropylene, virgin polypropylene, and fiberglass reinforcement, making it highly durable and environmentally friendly. Furthermore, Lok N Blok contains UV protection additives, ensuring its longevity even in direct sunlight.
Features
- There is only one type of Lok N Blok. There are no corner blocks, no bond beams, stretcher units, lintel units or half blocks. Lok N Blok’s design is so intricate and versatile, that it can handle every condition.
- The block has tapered female dovetails on the ends and main faces.
- The slots measure 0.82” on the top and 0.53” on the bottom.
- Tapered male dovetails slide into these slots to create secure and strong connections.
- They can form flat ends, corners and even openings up to 6 feet in length with no additional header or reinforcement to maintain structural integrity.
- Square posts on the top surface of the block, fit into the square voids on the bottom surface of another block. This allows them to be stacked either directly on top of each other or offset by a quarter of a block or even half a block. There is no mortar or adhesive needed between the layers.
- The plastic webs in the middle have several purposes. They reduce the weight of the block, create room for additional insulation, and allow utilities to run vertically.
- Another cool feature is this circular void created when the blocks stack, which allows conduit and wires to run horizontally.
Advantages of Lok N Blok
- Lightweight and Easy Installation: Weighing just 6.2 lbs, Lok N Blok is much lighter than traditional CMU blocks, reducing fatigue and the risk of injuries among construction workers. Its simple design eliminates the need for various block types, simplifying the construction process.
- Versatile and Secure Connections: Lok N Blok’s intricate design allows for tapered female dovetails on the ends and main faces, enabling secure and strong connections with tapered male dovetails. The blocks can form flat ends, corners, and openings up to 6 feet without additional reinforcement.
- Speedy Construction: The absence of mortar enables quicker construction, making the Lok N Blok system 50 to 60% faster than traditional methods.
- Eco-Friendly and Recyclable: Made from recycled polypropylene, Lok N Blok significantly reduces plastic waste and is 100% recyclable. Its eco-friendly nature makes it an excellent choice for sustainable building projects.
Disadvantages and Regulatory Hurdles
Although Lok N Blok offers numerous benefits, it currently comes at a higher cost than traditional construction methods. Regulatory hurdles have also hindered mass adoption, but efforts are ongoing to gain approval as a structural material in the United States.
Environmental Impact and Fire Resistance
Lok N Blok’s polypropylene composition makes it resistant to mold, mildew, and insects. The inclusion of glass fibers further enhances its resistance to insects. Moreover, Lok N Blok is heat-resistant, with a high melting point of 327 degrees Fahrenheit, emitting only water vapor and carbon dioxide when burned.
Conclusion
The Lok N Blok system presents a game-changing solution to two pressing environmental issues – the carbon and energy footprint of concrete masonry units and plastic pollution. With its innovative design and eco-friendly composition, Lok N Blok offers a more sustainable and efficient construction alternative. While regulatory hurdles remain, the potential impact on the construction industry and the environment is undeniable. Lok N Blok is a testament to the power of innovation and determination, a product that may shape a greener future for construction.
http://lok-n-blok.com/
