Solidified insolubilized neutral modifier for low fluidized mud and low fluidized mud reformer using the modified material

摘要

【Task】 The low-fluidity mud soil, which is made by mixing mud material, which is an organic polymer emulsion, with mud soil such as dredged soil and shield-generated soil, which have high fluidity due to the influence of high water content and foaming agent, is re-mud. It is possible to insolubilize heavy metals and the like eluted from the soil without doing so, and it is possible to improve the strength of the treated soil and reform it. Provided are a neutral reforming material and a low-fluidization mud reforming method using the reforming material. SOLUTION: The solidified insolubilized neutral modifier of the present invention is a modifier used for low-fluidized mud containing a mud-based material containing an organic polymer emulsion as a main component, and is calcium oxide, magnesium oxide, and sulfuric acid first. Iron and calcium carbonate are essential components, calcium oxide is contained in an amount of 3 to 30% by mass, ferrous sulfate is contained in an amount of 1 to 20% by mass, and calcium carbonate is contained in a proportion of 50% by mass or more, based on 100 parts by mass of calcium oxide. , Magnesium oxide is contained in a proportion of 10 to 100 parts by mass, and ferrous sulfate is further contained in a proportion of 10 to 200 parts by mass. [Selection diagram] None