The main reason why contractors, repair specialists, and homeowners buy fasteners like expansion wedge anchors is for their use in solid concrete. Wedge anchors, and their many varieties, including stainless steel wedge anchors and galvanized wedge anchors, are essential for creating connections in materials that create much of our infrastructure.
Concrete’s ubiquity is a direct result of its many advantages. It’s strong, versatile, and easy to produce and use. Structural elements can be incorporated during the pouring process, as in the case of anchor inserts and bar anchors, or after the concrete has hardened, as in the case of stainless steel sleeve anchors and zinc-plated wedge anchors.
What’s So Bad About Concrete?
While there’s little debate on concrete’s usability for structural purposes, its future prominence has come into question. Growing concern about the effects of greenhouse gas emissions and their contribution to climate change have many industries exploring more sustainable and carbon-neutral alternatives. This is especially relevant for industries that use concrete because of the material’s significant contribution to CO2 levels.
Roughly eight percent of global CO2 emissions come from the production of concrete/cement. Apart from the manufacturing process, poured and cured concrete also contributes to urban heat. As temperatures rise and heat is absorbed by paved services, more energy is needed for climate control, which further contributes to greenhouse gases.
Concrete’s environmental impact and the need to update rapidly aging infrastructure have led to a push for alternative materials and more sustainable innovations. Efforts to reduce concrete’s environmental impact come not just from proponents of a carbon-neutral future, but also from companies that produce cement. Some of the world’s biggest cement makers have pledged to reduce greenhouse gas emissions by a quarter within the next ten years and make the material completely carbon neutral by the middle of the century.
To accomplish this, it would be necessary to further carbon capture and storage capabilities, as well as other measures that alter the manufacturing process and adjust building standards and designs. It’s also necessary to identify suitable infrastructure materials that could be alternatives to cement.
What Are The Alternatives?
Traditional building materials like timber and clay have been suggested as alternatives to concrete. These options have been used in structural applications for centuries and now modern engineers, developers, architects, and other professionals are applying them to a more contemporary and sustainable approach to infrastructure.
Other materials include those made from fiber, plant-based materials, waste plastic and rubber, and other substances that aren’t typically used in structural applications. These materials are processed so they can be used like bricks, planks, or sheets. More modern concrete alternatives are typically made from composites that account for weather-proofing, stability, insulation, and ease of manufacture.
Since composites are also usually lighter than concrete, these materials can also amount to easier labor requirements during the construction process, as well as less energy consumption.
Reshaping And Repurposing Existing Infrastructure
Since it’s not always possible to start with a blank slate, some proposals for adapting and repurposing existing concrete infrastructure have included recycling concrete to create more eco-friendly composites. Recycled concrete would utilize spent materials from deteriorating or older structures that can then be incorporated into new projects. This would reduce the amount of resources required to move forward with new projects.
Other proposals have included incorporating solar cells, energy storage, and smog reduction technology to offset the environmental impact of new construction.
Whether many or few of these measures are implemented, infrastructure in the near future will likely be quite different from the standards that have shaped our cities, towns, and roadways.
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