Imagine you had a building material that was energy-efficient, non-toxic and resistant to mold, insects and fire. The material may even have a higher R-value, or thermal resistance, than concrete, a claim that is still being investigated. The only problem? The base of the Hempcrete creation is hemp, which comes from the cannabis sativa plant -- the same one that produces marijuana, which is a federally banned substance. Because of this, industrial hemp production is illegal in the United States. MORE READ....... huffingtonpost/2012/05/10/hempcrete-hemp-house_n_1506662.html Hempcrete is a bio-composite made of the inner woody core of the hemp plant mixed with a lime-based binder. The hemp core or “Shiv” has a high silica content which allows it to bind well with lime. This property is unique to hemp among all natural fibers. The result is a lightweight cementitious insulating material weighing about a seventh or an eighth of the weight of concrete. Fully cured hempcrete blocks float in a bucket of water. MORE READ..... americanlimetechnology/what-is-hempcrete/
Posted on: Fri, 21 Jun 2013 05:04:02 +0000
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