Papercrete is a construction material that consists of re-pulped paper fiber with Portland cement or clay and/or other soil added. First patented in 1928, it was revived during the 1980s. Although perceived as an environmentally friendly material due to the significant recycled content, this is offset by the presence of cement. Using this technique for building a papercrete house is a good choice. Finishing Papercrete Papercrete has the disadvantage of not being.

Testing the of a papercrete panelPapercrete is a construction material that consists of re-pulped with or and/or other soil added. First patented in 1928, it was revived during the 1980s.

Although perceived as an environmentally friendly material due to the significant recycled content, this is offset by the presence of cement. The material lacks standardisation, and proper use therefore requires care and experience.

Eric Patterson and Mike McCain, who have been credited with independently 'inventing' papercrete (they called it 'padobe' and 'fibrous cement'), have both contributed considerably to research into machinery to make it and ways of using it for building. Contents.Manufacture The paper to be used can come from a variety of sources, including,.

A mixer is used to pulp the mix. Depending on the type of mixer, the paper may be soaked in water beforehand.Standardization and commercial acceptance As of 2007, papercrete lacks approval from the. This limits its range of use within the city limits of most incorporated cities where building codes apply. It is not used as a load-bearing wall where building codes apply. However, its strength in model structures has been proven, and homes and small commercial buildings are being constructed.

There is little or no evidence of its long-term durability at present.In these small building projects, papercrete is being used as an in-fill in conjunction with or other load-bearing elements.Papercrete gets its name from the fact that most formulas use a mixture of water and cement with cellulose fiber. The fiber is usually acquired from recycled newspaper, lottery tickets and phone books. The mixture has the appearance and texture of oatmeal and is poured into forms and dried in the sun, much like the process for making.Dried papercrete has very low strength, but fails by slow compression (due to the large air content and hence compressibility) rather than in a manner. Concrete and wood (though dry soft wood can be as high as R-2 per inch, high moisture content reduces this value markedly.) are not known for their insulating qualities; however, papercrete also provides good insulation.Papercrete's is reported to be within 2.0 and 3.0 per inch (2.54 cm); papercrete walls are typically 10 to 12 inches thick (about 25–30 cm). Unlike concrete or adobe, papercrete blocks are lightweight, less than a third of the weight of a comparably-sized adobe brick. Papercrete is mold resistant and has utility as a sound-proofing material.Research tests into papercrete have been carried out by Barry Fuller in Arizona and Zach Rabon in Texas. Fuller directs government-funded research on papercrete through the.

He is also head of a subcommittee for the, and it is his goal to set standards that will lead to acceptance of the product within the architectural community and commercialization of the product, especially for affordable housing.Structural tests have been completed on several papercrete formulas and Fuller claims the compressive strength of papercrete to be in the 140-160 psi range (0.96 - 1.1 MPa), while others like Kelly Hart claim 260 psi (1.7 MPa). For comparison, the compressive strength of concrete ranges from 15 MPa to over 70 MPa (2200 - 10000 psi) depending on the application. A more useful measure of papercrete's properties is its - i.e. The extent to which it compresses under load. Its stiffness is many times less than that of concrete, but sufficient for the support of roof loads in some low-height buildings. Dried, ready-to-use papercrete has a rough surface.

This increases its surface area and provides a very strong bond from one block to the next.Papercrete has also been tested for its. Fuller notes that a papercrete block is the equivalent of hundred of pages of paper - almost like a catalog. Papercrete has very good shear strength as a block.

Lateral load involves sideways force - the wind load on the entire area of an outside wall for example. Because papercrete walls are usually a minimum of twelve inches thick, and usually pinned with, they may be strong laterally.Zach Rabon founded Mason Greenstar in Mason, Texas for the purpose of producing and selling a commercially viable papercrete block. His product, Blox Building System, is at present the only mass-produced commercial papercrete block in the market. He has built several residential structures with it.The Mason Greenstar block had its genesis in a journey Rabon's father, Kent Rabon, made to. The elder Rabon made the acquaintance of Clyde T. Curry, the proprietor of Eve's Garden Organic Bed & Breakfast and Ecology Resource Center.Mr.

Curry was an early proponent of papercrete and benefited from the lack of building regulations in the small mountain community of Marathon. Curry built four of the rooms at the bed and breakfast either partially or entirely out of papercrete and is in the process of building two more, in addition to a library and reception area, entirely out of papercrete.Papercrete's ready moldability provides considerable flexibility in the designed shape of structures.

Domed ceilings/roofs may be commonly constructed with this material.Along with Fuller's work at Arizona State University, Curry's establishment has become a resource center for people interested in papercrete, and workshops are intermittently held there.The Rabons had prior experience as homebuilders and are owners of a ready-mix cement plant in Mason. They have invested in research and testing on their product for several years. However, they consider their product a proprietary formula.

They have filed for a separate patent even though a patent for papercrete had already been filed in 1928. The block developed by Mason Greenstar is known for its uniform shrinkage (all papercrete blocks go through a lengthy dry-time that involves some shrinkage), giving it a sharper edge.Fuller has remarked that in tests he has performed on the Rabon block, it has outperformed other formulas.Papercrete is claimed to have benefit of being a project that involves little cost to start.

The materials are claimed to be cheap and widely available. Machinery suitable for small-scale construction is simple to design and construct.When properly mixed and dried, the papercrete wall can be left exposed to the elements. In its natural state, it is a grey, fibrous-looking wall. For a more conventional look, stucco can be applied directly to it.A study model home made of papercrete has been built at the. This study model is a sample of homes to be built for a community in Tijuana by students ofSince 2006 a small company based in England, has developed, with the support of Cambridge and Bath University, a papercrete formula and production process for breeze blocks to be accepted by British Standard and a green certification for Europe. This new mixture of papercrete is to withstand the wet and harsh English weather. As of 2009 Econovate was in the process of developing this product and reaching manufacturing trials stage.

A patent was filed in 2011 for the production process of breeze blocks with this material. The design of machinery was necessary to achieve a successful scale up of production. In January 2013 Econovate became fully funded to set up its first demonstration plant capable of producing up to 1.5m blocks a year which expected to achieve certification by October 2015.

The company has tested the product at UKAS register testing houses for 18 rigours test such as fire, strength, moisture movement, acoustics, thermal, durability and others toward the product certification. This certification by LABC was achieved in dec 2015. The company was also in the process of achieving ISO 9001, 14001, 18001 and BS eN 6001 (responsible sourcing). Its ISO 9001 certification was achieved in October 2015. Econovate with its product Econoblok is producing a breeze block, UK standard size (440mmx215mmx100mm) with 5Mpa and another with 7Mpa. The difference between the two will be the amount of fibre within the mixture and this can range between 55% to 79%.

The more strength the less fibre thus less thermal. After gaining Certification the company has increased production and the product is called 'econoblok®'. Initial commercialization will be in the UK until the production process is fully tested and ready for up scaling to a full size plant. From January 2017 the company will start preparing for the full size plant of 5-6 million block production, this will be based in the UK. Econovate plans to expand to other region of the world where some basic recycling system exist.Compressive test on papercrete block reveals that papercreate can withstand load up to its.Do it yourself Papercrete is rapidly gaining a groundswell of support among 'do it yourself' builders. It is claimed to be a very attractive building material due to its very low cost, light weight, and high performance.

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Many owner/builders are contributing to furthering the technology and sharing their experiences over the internet through resources such as 'Papercreters'.Similar materials There are different earth-paper mixes promoted under different names. A mix that uses clay as a binder instead of Portland cement is often referred to as 'Hybrid Adobe', 'Fidobe', or 'Padobe'.See also.References.

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