ABSTRACT
In the construction industry of the world, concrete has become indispensable material now. Concrete has affected the modernization in various countries and the industrial recovery. However, cement which composes concrete, has the disadvantage in environment. Because cement has a strong alkalinity, there is a bad character for the natural world in no small way and the cement-based concrete which becomes the wastes is not recycled easily. On the other hand, the bamboo influences the environment now too. Recently, the bamboos forest was neglected and its area was spreading. As a result, the bamboo forest invades the man-made forest of the Japanese cedar and the cypress. Therefore, in the construction industry, the effective usage of the bamboo material has become of major interest lately. With the above mentioned points as background, the calcium-based solidification material and the bamboo material are taken up to consider the preservation of natural environment in this study. Because the calcium-based solidification material is lower alkalinity than cement, the usage of it is ecofriendly for animals and plants. In addition, when the calcium-based solidification material is disused, it may not have some adverse effect on environment. Therefore, in this study, calcium-based solidification material and bamboo material are examined to evaluate the effectiveness as the construction materials.
