In late years, quantity of construction by-products tends to increase in our country. Therefore, dumping restraint of construction by-products and promote those recycling are the most critical issue from a viewpoint of establishing the recycling society. In the other hand, soils generated from construction generally show strong alkalinity because cements are mixed. Thus, the cost at the time of the disposal of soils generated from construction becomes expensive, and it is thought that it has a great influence on environment when the soils is disposed by no improvement. However, it is the present conditions that technique in consideration of the influence on environment with non-appropriate processing is not established. Therefore, a vegetation is applied for an index indicating a recycling potential of soils generated from construction. This paper is inspected experimentally to the potential of soils generated from construction as a planting base by mixing neutralizing agents. It was realized that the soils generated from construction had vegetation by mixing neutralizing agents.

ABSTRACT:In contrast to the mechanical stirring method in which the ground soil and the modifying material are mixed and stirred by stirring blades and the improved body is formed in the ground, the high pressure injection stirring method is a method in which the improved diameter is changed due to soil condition and so on. There is a possibility that it can be changed with, and a method for easily confirming the shape, particularly the improved diameter, is highly desired. In this research, the authors propose and propose a method that can make "visualization" of this improvement situation and confirm the improved diameter in real time. Confirmation was made by measuring water quality in multiple items. From the results, it was confirmed that pH and the values of the other 5 items changed at the same time. And the change was due to the arrival of the cement slurry. Therefore, it can be said that real-time measurement is possible by visualization of improved diameter by water quality measurement conducted this time.

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