JPS643037A - Formation of lightweight aggregate - Google Patents
Formation of lightweight aggregateInfo
- Publication number
- JPS643037A JPS643037A JP15756487A JP15756487A JPS643037A JP S643037 A JPS643037 A JP S643037A JP 15756487 A JP15756487 A JP 15756487A JP 15756487 A JP15756487 A JP 15756487A JP S643037 A JPS643037 A JP S643037A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- fine granules
- lightweight aggregate
- resulting
- followed
- 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.)
- Pending
Links
Landscapes
- Glass Compositions (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
PURPOSE: To obtain lightweight aggregate carrying vitreous film thereon, with deceased admixing water required, by mixing respective granular powder of expandable shale and volcanic rock containing vitreous matter, carrying out granulation followed by calcination.
CONSTITUTION: First, expandable shale is ground into fine granules or powder of desired size. Thence, (A) ca. 90W70wt.% of said fine granules or powder and (B) ca. 10W30wt.% of fine granules or powder of volcanic rock containing vitreous matter such as obsidian or perlite are mixed followed by moistening, then granulation. The resulting product is dried followed by calcination in e.g. a rotary kiln. The surface of the resulting granulated product is in a semifused state along with gas generated therein, leading to bubble formation, thus resulting in the expansion of the softened whole product. When cooled following that, the objective lightweight aggregate with vitreous film formed thereon can be obtained.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15756487A JPS643037A (en) | 1987-06-26 | 1987-06-26 | Formation of lightweight aggregate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15756487A JPS643037A (en) | 1987-06-26 | 1987-06-26 | Formation of lightweight aggregate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH013037A JPH013037A (en) | 1989-01-06 |
JPS643037A true JPS643037A (en) | 1989-01-06 |
Family
ID=15652438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15756487A Pending JPS643037A (en) | 1987-06-26 | 1987-06-26 | Formation of lightweight aggregate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643037A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5013232B1 (en) * | 2011-04-11 | 2012-08-29 | 宮崎▲高▼砂工業株式会社 | Aggregate using Shinmoedake eruption ash, its manufacturing method and building material using the same |
-
1987
- 1987-06-26 JP JP15756487A patent/JPS643037A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5013232B1 (en) * | 2011-04-11 | 2012-08-29 | 宮崎▲高▼砂工業株式会社 | Aggregate using Shinmoedake eruption ash, its manufacturing method and building material using the same |
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