JPS57143383A - Snow-melting material and its preparation - Google Patents
Snow-melting material and its preparationInfo
- Publication number
- JPS57143383A JPS57143383A JP2957281A JP2957281A JPS57143383A JP S57143383 A JPS57143383 A JP S57143383A JP 2957281 A JP2957281 A JP 2957281A JP 2957281 A JP2957281 A JP 2957281A JP S57143383 A JPS57143383 A JP S57143383A
- Authority
- JP
- Japan
- Prior art keywords
- particle
- snow
- particle size
- mesh
- melting material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
PURPOSE: To provide a snow-melting material having low reflectivity and capable of scattering without fly loss nor causing deterioration of the working environment or pollution caused by the pollution with black color, by using particle mixture having specific particle size and obtained by heating and carbonizing used old molding sand coated with a thermosetting synthetic resin, and dispersing the sand in particles.
CONSTITUTION: Used old molding sand coated with a thermosetting synthetic resin (preferably furan resin or phenolic resin) is heated and carbonized at 400W800°C in an atmosphere with low oxygen content to effect the particle-to- particle dispersion. The resultant particle composition wherein the content of the fraction having the particle size of 35W200 mesh is ≥95% is used as the main component of the objective snow-melting material. It is preferable to use a mixture of 80W90% above particle composition having particle size of 35W200 mesh and 20W10% particles such as natural sand, coal powder, quenched cast iron cupola slag, and/or calcium silicate fertilizer having particle size of 10W25 mesh, because the snow of the surrounding of a larger particle melts preferentially to form a large cavity, and the unmolten snow surface is irradiated with the reflected light to increase the absorption efficiency of the solar heat.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2957281A JPS57143383A (en) | 1981-03-02 | 1981-03-02 | Snow-melting material and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2957281A JPS57143383A (en) | 1981-03-02 | 1981-03-02 | Snow-melting material and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57143383A true JPS57143383A (en) | 1982-09-04 |
JPS642159B2 JPS642159B2 (en) | 1989-01-13 |
Family
ID=12279824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2957281A Granted JPS57143383A (en) | 1981-03-02 | 1981-03-02 | Snow-melting material and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57143383A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60120782A (en) * | 1983-12-03 | 1985-06-28 | Hokkaido Nouzai Kogyo Kk | Snow melting agent and production thereof |
JPS60148906A (en) * | 1984-01-10 | 1985-08-06 | 日本道路株式会社 | Slip preventing material scattered to frozen snow-ice road surface |
JPH01198677A (en) * | 1988-02-03 | 1989-08-10 | Hokkaido Togyo Kk | Production of snow melting agent |
CN112012157A (en) * | 2020-08-28 | 2020-12-01 | 中国水利水电科学研究院 | Solar ice slush flood relieving and eliminating method |
CN115260991A (en) * | 2022-07-27 | 2022-11-01 | 胡勇 | Coated snow-melting agent and preparation method and application thereof |
-
1981
- 1981-03-02 JP JP2957281A patent/JPS57143383A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60120782A (en) * | 1983-12-03 | 1985-06-28 | Hokkaido Nouzai Kogyo Kk | Snow melting agent and production thereof |
JPS60148906A (en) * | 1984-01-10 | 1985-08-06 | 日本道路株式会社 | Slip preventing material scattered to frozen snow-ice road surface |
JPH01198677A (en) * | 1988-02-03 | 1989-08-10 | Hokkaido Togyo Kk | Production of snow melting agent |
CN112012157A (en) * | 2020-08-28 | 2020-12-01 | 中国水利水电科学研究院 | Solar ice slush flood relieving and eliminating method |
CN115260991A (en) * | 2022-07-27 | 2022-11-01 | 胡勇 | Coated snow-melting agent and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS642159B2 (en) | 1989-01-13 |
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