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Japan, a country of is full of innovation. Possible the naming of that as according to how Japan handles the problem of garbage. After succeeding to make a airport have international class to in made Kobe above garbage coat, last apply making of manure of garbage in various hotel in Japan, nowadays Japan have succeeded to alter garbage become cement product which is later ; then named with Ecocement.

Ecocement
Early research in year 1992, financed by Development Bank of Japan, all researcher of Japan have checked possibility of ash result of combustion of garbage, made dirty water sediment upon which cement. From result of the research known that ash result of combustion of pregnant garbage of element which is equal to elementary materials of cement in general. In the year 1998, after passing process test eligibility finally first factory is world alter garbage become cement founded by in Chiba. The Factory can yield ekosemen 110.000 ton per its year. While turned into garbage is ash which is later; then processed to become tired cement 62.000 ton per year, dirty water sediment and processed combustion residue reach 28.000 ton per year. Till in this time have two factory in Japan which producing Ecocement. 

Making of Ecocement
Resident of Japan throws away inorganic and also organic good garbage, about around 50 million ton / year. From 50 ton per the year which incinerated by about around 37 ton per year. While yielded ash reach 6 ton / its year. From this ash is later; then made upon which from making of ekosemen. Dusty this and dirty water sediment contain compounds in forming of ordinary cement. That is, oxide compounds like CaO, SiO2, Al2O3, and Fe2O3. Therefore, this ash can do duty off used clay at making of ordinary cement
But Cao which consist in at ash result of combustion of garbage assessed by still not yet answered the demand of, so that limestone as source of Cao still required by about around 52 percentage of entirety. While at ordinary cement, required limestone reach 78 percentage of entirety

Process hereinafter is ash result of combustion of garbage (39 gratuity), limestone (52 gratuity), dirty water sediment (8 gratuity) and other materials entered/included into kiln rotary to is later; then burned. To prevent to be formed his its of dioxin, at combustion process in kiln rotary, done/conducted by at 1400 degree of Celsius more where at temperature of dioxin raveled safely

Later; Then gas result of combustion at kiln rotary made cool quickly to prevent process forming of dioxin repeat. So that results of dangerous discard gas is not to human being. While at result of combustion which still contain metal compound dissociated, to later; then can be utilized for other requirement. End result of this process is ecocement.

Influence of vinyl plastic
Vinyl plastic which there are in garbage at combustion process will effect of strength of ekosemen conceit will decrease. This matter is resulted from by the existence of gas of Cl2 result of breakdown of vinyl plastic able to influence strength of ekosemen conceit

Quality of ecocement
Pursuant to result of examination of JSA (Japan Standard of Association) expressed that ekosemen have the quality of which is of equal quality with ordinary cement. So that, till in this time usage of ekosemen have been used in development of bridge, road; street, house, and other building in Japan.

With existence of distorting of garbage become cement, adding alternative processing of garbage become goods is of benefit to human being which has thrown away him. Besides with existence of alternative processing of garbage become cement, expense of processing of garbage in Japan become cheaper. If/When previously 40.000 yen per ton (processing of conventional garbage) becoming 39.000 yen per ton (processing of garbage till become cement)