GB1247382A - Improvements in and relating to pressed concrete articles - Google Patents
Improvements in and relating to pressed concrete articlesInfo
- Publication number
- GB1247382A GB1247382A GB28773/68A GB2877368A GB1247382A GB 1247382 A GB1247382 A GB 1247382A GB 28773/68 A GB28773/68 A GB 28773/68A GB 2877368 A GB2877368 A GB 2877368A GB 1247382 A GB1247382 A GB 1247382A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mix
- drum
- aggregate
- article
- pressed
- 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.)
- Expired
Links
- 239000000203 mixture Substances 0.000 abstract 7
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000004568 cement Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000004927 clay Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0081—Embedding aggregates to obtain particular properties
- B28B23/0087—Lightweight aggregates for making lightweight articles
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
1,247,382. Pressed lightweight concrete articles. NATIONAL RESEARCH DEVELOPMENT CORP. 20 May, 1969 [17 June, 1968], No. 28773/68. Heading B5A. A pressed concrete article is formed from lightweight aggregate concrete mix by vigorously mixing an air entraining agent with the mix, pressing an article formed from the mix in an appropriately shaped mould, transferring the article to a curing station and curing the pressed article. The lightweight aggregate is preferably a sintered pulverized fuel ash, a foamed slag or a bloated clay aggregate. The preferred method of preparation comprises mixing a predetermined amount of the air entraining agent with water, adding a small amount of the resulting solution to the drum of a paddle mixer, rotating the drum at about 20 r.p.m. and adding medium grade aggregate to provide about 40 wt. per cent of the final aggregate content, adding cement to the drum, adding aggregate fines to provide the remaining 60% of the final aggregate content, adding the remainder of the air entraining agent solution to the drum so that the water content of the mix is about 0À8% by weight of the cement content of the mix, rotating the drum for 1¢ minutes at 20 r.p.m., rotating the drum for 3 minutes at 80 r.p.m., introducing the mix into a mould, applying a pressure of about 350 p.s.i. to the mix in the mould, removing the pressed article from the mould and curing it.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28773/68A GB1247382A (en) | 1968-06-17 | 1968-06-17 | Improvements in and relating to pressed concrete articles |
| DE19691929257 DE1929257A1 (en) | 1968-06-17 | 1969-06-10 | Process for the production of pressed lightweight concrete precast elements |
| FR6919967A FR2011075A1 (en) | 1968-06-17 | 1969-06-16 | Press moulded light weight concrete sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28773/68A GB1247382A (en) | 1968-06-17 | 1968-06-17 | Improvements in and relating to pressed concrete articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1247382A true GB1247382A (en) | 1971-09-22 |
Family
ID=10280927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28773/68A Expired GB1247382A (en) | 1968-06-17 | 1968-06-17 | Improvements in and relating to pressed concrete articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1247382A (en) |
-
1968
- 1968-06-17 GB GB28773/68A patent/GB1247382A/en not_active Expired
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