Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1995-12-14
1997-08-19
Suchfield, George A.
Hydraulic and earth engineering
Earth treatment or control
Chemical
106706, 106707, 106793, 106811, 404 76, 588256, 588257, B09B 300, C04B 2822, C09K 1700, E02D 312
Patent
active
056580975
ABSTRACT:
The present disclosure concerns a soil or ground quality stabilizer comprising a mixture formed by mixing a burned sewage sludge ash the main contents of which are CaO, SiO.sub.2 and Al.sub.2 O.sub.3 with a lime of calcium hydroxide to reduce hydraulicity and a fine Fe oxides mixture powder byproduced in steel production the main content of which is iron oxide. The soil or ground quality stabilizer is added into a pavement material containing crushed stones, natural soil, etc. to improve the strength and viscoelasticity of the natural soil and can give a desired CBR strength to the soil having an increased moisture content. The preferable adding ratio of the fine Fe oxides mixture powder into the mixture of the burned sewage sludge ash and the lime of calcium hydroxide is within the range of 15-35 weight %.
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Ii Akira
II Kiyoshi
II Tsukio
Komori Teruaki
Mizoguchi Takayoshi
Fe Lime Industry Corporation
Suchfield George A.
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