Excerpts on Steel and Concrete LCA

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Comparing LCA Results with Biogenic Carbon

One study from New Zealand (Fernandez 2008) demonstrates the varying carbon emission results by comparing LCAs of the same building designed using four different primary building materials and two different LCI data sources.  Embodied carbon emissions factors in Figure 2 sourced from the a New Zealand dataset (Alcorn 2003) included biogenic carbon (negative indicating carbon sequestration) while...

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Where's the Money

I recently attended a presentation sponsored by the Chicago branch of the US Green Building Council entitled, “Where’s the Money – Building Energy Retrofits.”  A series of presenters, with intimate knowledge of the energy retrofit business, explained how companies and individuals can get support for improving energy efficiency in their homes and businesses.  The monies come from a variety of sources including: utility companies, finance companies, and government backed loans. My electricity...

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House Bill takes on the EPA ruling process. What's best for Fly Ash?

Most of you will recall the EPA is considering whether CCRs that are not designated for beneficial reuse (such as fly ash in concrete) should be regulated as a Hazardous Waste or Household Garbage.  There are nuances to the ruling but that is the crux and either way beneficial reuse would still be allowed.  One of the raging debates is whether a hazardous designation will hamper or encourage...

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