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2.3 Eco-materials examples
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30000 yen per square meter (Taiheiyo, 2003).
Eco-cement (I.A) Eco-cement is a product of Taiheiyo Cement Corporation. This eco-cement is manufactured using municipal wastes as its substitute for raw materials. The municipal waste can be used as raw materials for ecocement in two different ways, in the form of incinerated ash, and in the form of municipal sludge. In the ecocement, approximatetly 50% of municipal wastes has replaced the cement raw materials (table 2). Quality of
TABLE3 ___
M-Wood2 (I.B)
Table 2 ___ Raw materials in eco-cement and Portland cement
eco-cement is similar to ordinary Portland cement. Use of eco-cement has two benefits, reducing non renewable raw material extraction and reducing the waste released to the environment. A life cycle assessment result of ecocement indicated that CO2 emissions are reduced up to 50%, energy consumption is reduced up to 89%, and prolongation of landfill could save up to
M-Wood2 is a synthetic wood blend product combining various types of plastics (polyvinyl chloride or polypropylene) with wood chips. The wood composition in this material is about 51-55% or less (by weight). The other components consist of about 25-30% of plastic wastes such as polypropylene trays, automobile bumpers, agricultural PVC, and less than 20% of pigments and additives which are normally used in olefin resins. The production of this M-Wood2 will not produce any VOCs. In addition, 100% recycled materials are used for the production of M-Wood2. Furthermore, the testing phase reported that M-Wood2 could be recycled 10 times
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