Air Krete is proud to offer our customers products that have earned the government's ENERGY STAR label.
Breaking News
The leader of the green movement and winner of the 2007 Nobel Peace Prize for Climate Change, Al Gore insulated his personal estate with Air Krete® in October 2007.
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MgO Extracts CO2
from the Atmosphere Air Krete is made with air, water and Magnesium Oxide (MgO) Cement. The MgO is a mineral which is used in our daily vitamin mineral supplements. When MgO is calcined, it produces high temperature fireproof refractory cement when used in the Air Krete process. Recent studies have proven that (MgO) absorbs Co2 (carbon dioxide). The MgO activates a counter action to the global warming effect by scrubbing Co2 from the atmosphere, making Air Krete an even more environmentally friendly product.
USE OF MGO AS THE ENGINEERED BARRIER IN THE WIPP
The U.S. Department of Energy is emplacing MgO in the Waste Isolation Pilot Plant (WIPP) to serve as the engineered barrier by decreasing the solubilities of the actinide elements in transuranic (TRU) waste in any brine present in the repository after closure. In its May 1998 certification rulemaking, the U.S. Environmental Protection Agency specified MgO as the only engineered barrier in the WIPP disposal system.
MgO will decrease actinide solubilities by consuming essentially all aqueous or gaseous CO2 produced by microbial consumption of cellulosic, plastic, and rubber (CPR) materials (even if microbes consume all CPR materials in the repository), thereby buffering fCO2 and pH within ranges favorable from the standpoint of actinide solubilities. The DOE is emplacing significantly more MgO than required to consume all CO2. MgO could also consume significant quantities of H2O from brine or the gaseous phase. Read More
Development of Carbon Negative Construction Products Using Novel MgO Based Binders
....The production of Magnesium Oxide on the other hand converts easily from Magnesium Carbonate at around 650°C, thus halving the energy consumption. Whilst the ‘roasting’ process of manufacturing ‘eco-cements’ produces more CO2, during setting and hardening a process called carbonation reabsorbs the majority of this from the air. In construction terms, a tonne of eco-concrete can end up absorbing up to 0.4 tonnes of CO2. Read more...
MgO Magnoboard®
Building Board for the 21st Century
....the actual cement composition which accelerates the absorption of CO2 from the environment within the manufactured construction products.Read more...
MgO is used as an Insulator
...MgO is used as an insulator in industrial cables, as a basic refractory material for crucibles and as a principal fireproofing ingredient in construction materials. As a construction material, magnesium oxide wallboards have several attractive characteristics: fire resistance, moisture resistance, mold and mildew resistance, and strength. Read More...
Review of MgO-Related Uncertainties in the
Waste Isolation Pilot Plant
Contract Number EP-D-05-002
Work Assignment No. 4-02, TD No. 2008-3 Read More...
...In December 2002, the Department of Energy (DOE) submitted a request to the
Environmental Protection Agency (EPA) for disposal of supercompacted waste from
Idaho's Advanced Mixed Waste Treatment Facility (AMWTF). On March 26, 2004, the
DOE received approval to dispose of AMWTF's supercompacted waste provided
magnesium oxide (MgO), the approved engineered barrier, was emplaced in sufficient
quantities to comply with the EPA's safety factor. DOE will take necessary measures to
ensure that sufficient amounts of MgO are emplaced within each disposal room. Read More...
Behavior of MgO as a CO2 Scavenger at the Waste Isolation Pilot Plant (WIPP), Carlsbad, New Mexico
Author(s): J. L. Krumhansl, H. W. Papenguth, P-C. Zhang, J. W. Kelly, H. L. Anderson, J. O. E. Hardesty
Transuranic nuclear wastes being disposed of in the Waste Isolation Pilot Plant (WIPP) contain large amounts of organic material that may decay producing substantial quantities of undesirable CO2. Because of this possibility a MgO backfill has been included in the repository design. In addition to scavenging C0 2, the backfill may also hydrate forming Mg(OH) 2. Backfill hydration may provide a sink that may sorb much, or all, of the brine that enters the repository. The key to understanding the full implications of including the MgO backfill lies in knowing the rates of the various processes that may operate as the repository ages and evolves. Both carbonation and hydration reactions were found to occur rapidly enough to have beneficial impacts on repository performance. Read More...
