Development of Environmentally-Friendly Pipe Filling Material Using Industrial Waste
نویسنده
چکیده
Environmental problems have attracted worldwide attention, and the recognition of their importance has risen through the newspapers and other media every day. In the construction industry, industrial waste resulting from civil engineering work has become a big problem, termed construction pollution. Construction sludge and muddy water resulting from construction or demolition are particularly difficult to treat and hardly ever recycled except for some practical cases. We had also disposed of these materials as industrial waste after the installation of our underground power transmission lines (Photo 1). To turn this situation around, Sumitomo Densetsu Co., Ltd. focused on the recycling of muddy water. We aimed to develop a material that can meet the following three requirements: · Recyclable as a filling material of installation pipes · Makes a contribution to environmental protection · Decreases construction costs This paper details the development of the filling material. An installation project of underground power line conduits in 1997 is also introduced as an example in which the material was used in response to the request from an electric power company. 2. Background of the Development
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