| Project/Area Number |
18560786
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Recycling engineering
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| Research Institution | Hakodate National College of Technology |
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Principal Investigator |
KOBAYASHI Junya Hakodate National College of Technology, Professor (30205463)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
|
| Budget Amount *help |
¥3,590,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥90,000)
Fiscal Year 2007: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2006: ¥3,200,000 (Direct Cost: ¥3,200,000)
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| Keywords | Scallop Shell / recycle / Spherical Particle / Vaterite-type Calcium Carbite / 炭酸カルシウム / ホタテガイ貝殻 / バテライト型 / 白色顔料 |
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| Research Abstract |
The authors attempted to utilize crystals of spheroidized scallop shells as pigment, composite material and concrete material. It has been found that scallop shells are not different from white pigment with commercially available calcium carbonate as raw material in whiteness, water resistance and pH and can be used as pigment. Furthermore, we attempted to create film material with high strength by creating organic-inorganic composite layers and laminating them. Composite layers were created successfully however sufficient strength was not obtained therefore it is necessary to increase the number of layers, the authors presume. We have found that the flowability of cement paste is improved when spheroidized crystals are used as an additive and ball bearing effect, which is developed by fly ash, has been observed.
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