Today, hemp bricks are being used to build eco dwellings in the Province of Granada, Spain. Hemp as an industrial product has been around for thousands of years. After a reporting period slump, it is now beginning to show a re-emergence in this eco-age as a sustainable build product. http://www.biocarburanti.org
Hemp comes from the Anglo-Saxon word ‘haemp’ and is the popular figure for weeds of the cannabis genus. Hemp usually refers to the damages of the plant raised exclusively for industrial use as opposed to cannabis which is associated with pan and same drugs.
Hemp has a huge variety of works but continues to be overshadowed by the cannabis connotation of illegal drugs, with which it is often flustered. Nonetheless, hemp can legally be proliferated, under permission, in many countries, including the European Union countries and Canada.
Cannabis sativa L. is the variety chiefly flourished for industrial purposes, it is a fast growing bush and has been prepared for numerous thousand of years being used to move line, robe, article, hemp oil and remedies. Changing hemp improves the condition of the dirt and reduces ambient taint. It is a robust weed that requires neither herbicides nor pesticides during its cultivation.
Hemp as an industrial cloth has a ten thousand year history. The first registered apply of hemp was as a cloth fabric, found in China as far back as 8000 BC.C. Circa 4000 B.C. hemp started to be used, again in China, to originate lassoes and as menu. 2000 years later, the Chinese hemp lubricants and medication were in use. By 1000 B.C. its give had spread to India and Greece where the first instances of hemp paper were found.
By the 6th century, hemp was being be used in Europe in some surprising behaviors, in France a hemp reinforced connect was built, and it is still in use today. The hemp fiber too discovered exploits in sailmaking, caulking fabrics, fishing nets and courses. Later hemp have allowed us to make a anatomy of butter and even brew. By the 15 th century, Renaissance painters were applying hemp canvases.
Today industrial hemp is used to make a tremendous variety of commodities straying from medications, organization care makes, structure and insulating materials, robe, textiles, food, ga, livestock food and quilt, plastics and paper.
In the construction industry hemp bricks, because of their sustainability and good insulation owneds, are being used to construct external and internal walls of green residences. In this area of Spain, the outer walls of an eco-house is comprised of an eco-bricks, manufactured under Guadix with the proprietary word of Cannabric( r ).
Cannabric( r) descends its assets from industrial hemp fibers( canamo ). The hemp bricks are made up of industrial hemp fibers, slaked lime and a mixture of inert mineral substances. The cubes mix the functions of a load tolerating wall that is fire-resistant and is not necessitate the add-on of thermal or acoustic insulation.
The most important component of the eco-brick is industrial hemp which has a very low thermal conductivity( 0.048 W/ m2k) used to produce brick with hugely superior isolation owneds against both cold and hot. The mineral component of the bricks passes them their mechanical fortitude. Being a solid brick, with a high specific heat, it has the optimal thermal assets to protect against heat.
These peculiarities become hemp bricks the ideal hand-picked in areas of southern Europe where there are extremes in temperature through summer and winter.
The mechanical strong of the blocking begin with the formation of insoluble hydrates. The forte increases over meter with the carbonation of the free lime,( a ingredient of slaked lime) by humidity and carbon dioxide present in the air. Another important factor in the progressive heal of the eco-bricks is the gradual petrifaction of the industrial hemp by the lime and minerals found in the bricks.
Due to its unique structure, the hemp bricks tolerate the transpiration and diffusion of ocean vapor between the inside and outside of the building equalizing humidity within the building thus avoiding sultry and cold the regions and belittling distillation on the inside wall surfaces.
Slaked lime acts as the binder, basically supporting the brick together, but it has other uses. On one side it protects against humidity by closing any openings and foreclosing the entering of spray on external surfaces exposed to torrent. On the other paw, it provides protection for the industrial hemp fibers against fungal and parasite attack.
The hemp bricks when laid endwise are for construction sites of external walls thirty centimeters thick. The internal walls built with hemp bricks are thinner being half the thickness. The entertaining, popular cave homes of this area of Andalusia are naturally ecological in that they are re-developed from ancient derelict cave homes. Where ever probable construction sites fabrics consumed are salvaged from ramshackle belongings that have been demolished. This recycling downplays the environmental impact.
It is ironic that this area of Spain, the Altiplano, until the late nineteen sixties, was renown as an industrial hemp ripening field. With the ability and developed at nylon and related makes, coupled with the conclusion of its Franco area and raise mechanization the primary agriculture of the field precipitated apart propelling vast numbers of parties out of work. The population of numerous hamlets dropped by seventy-five percentage or more, most of the tenants moving to the coast and major cities in search of work.
As a result of these traumatic changes in demographic the remaining person was principally aged, the village’s incomes dropped to near poverty level, and numerous empty homes fell into disrepair.
Most of the land workers who moved away lived in cave residences which are now being revitalized by the growing demand for eco-properties.