JPS6437448A - Method for forming lightweight aggregate - Google Patents
Method for forming lightweight aggregateInfo
- Publication number
- JPS6437448A JPS6437448A JP19271687A JP19271687A JPS6437448A JP S6437448 A JPS6437448 A JP S6437448A JP 19271687 A JP19271687 A JP 19271687A JP 19271687 A JP19271687 A JP 19271687A JP S6437448 A JPS6437448 A JP S6437448A
- Authority
- JP
- Japan
- Prior art keywords
- grains
- lightweight aggregate
- resultant
- calcined
- softened
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Glass Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
PURPOSE:To obtain a lightweight aggregate of good quality having glassy films and a high surface film strength, by mixing discarded glass powder in an incinerated ash of sewage sludge, granulating the resultant mixture, calcining the obtained grains at a specific temperature and cooling the calcined grains. CONSTITUTION:An crushed glass powder is mixed in an incinerated ash of sewage sludge consisting of components of SiO2, Al2O3, Fe2O3, FeO, P2O5, CaO, etc., and the resultant granules are calcined at 900-1,200 deg.C while vigorously stirring and preventing mutual adhesion to convert the surfaces of the resultant grains 1 into a semimolten state. The interiors thereof are softened to simultaneously evolve a gas and form closed cells 2 and expand the softened whole, which is then air-cooled to form hard glassy films 3 on the surfaces and afford the aimed lightweight aggregate having about 1.0 apparent specific gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19271687A JPS6437448A (en) | 1987-08-03 | 1987-08-03 | Method for forming lightweight aggregate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19271687A JPS6437448A (en) | 1987-08-03 | 1987-08-03 | Method for forming lightweight aggregate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6437448A true JPS6437448A (en) | 1989-02-08 |
Family
ID=16295871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19271687A Pending JPS6437448A (en) | 1987-08-03 | 1987-08-03 | Method for forming lightweight aggregate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6437448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847923A (en) * | 2020-07-29 | 2020-10-30 | 湖州南浔兴云建材有限公司 | Preparation method of cement clinker for hydraulic engineering |
-
1987
- 1987-08-03 JP JP19271687A patent/JPS6437448A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847923A (en) * | 2020-07-29 | 2020-10-30 | 湖州南浔兴云建材有限公司 | Preparation method of cement clinker for hydraulic engineering |
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