FR2380234A1 - Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength - Google Patents
Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strengthInfo
- Publication number
- FR2380234A1 FR2380234A1 FR7703561A FR7703561A FR2380234A1 FR 2380234 A1 FR2380234 A1 FR 2380234A1 FR 7703561 A FR7703561 A FR 7703561A FR 7703561 A FR7703561 A FR 7703561A FR 2380234 A1 FR2380234 A1 FR 2380234A1
- Authority
- FR
- France
- Prior art keywords
- water
- high mechanical
- plaster
- mechanical strength
- compsns
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
Abstract
Mixtures consisting of plaster and a material supplying water, such as moist gypsum or water using Plaster of Blaine surface area 500-15000 cm2/g is used at 30-100 wt. %. The excess of water over the stoichiometric amount required for set is 0-15 (2-8) wt.%. The method consists of intimately mixing the plaster, the water supplying material and water, moulding and compression in the mould for a short time, to give a moulding which has high mechanical strength without drying. High mechanical strengths are obtd. in mfr. of parts by compression at low pressures unlike prior art where pressures >100 kg/cm2 were required.
Priority Applications (23)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7703561A FR2380234A1 (en) | 1977-02-09 | 1977-02-09 | Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength |
NL7801229A NL7801229A (en) | 1977-02-09 | 1978-02-02 | PROCEDURE FOR COMPRESSING PLASTIC GLASS MIXTURES. |
JP1288978A JPS53124536A (en) | 1977-02-09 | 1978-02-07 | Method of compressing plasterrbase mixture under pressure |
LU79017A LU79017A1 (en) | 1977-02-09 | 1978-02-07 | PRESSURE COMPACTION PROCESS FOR PLASTER-BASED MIXTURES |
GR55380A GR63170B (en) | 1977-02-09 | 1978-02-07 | Method for making mixtures based on plaster compacts |
MX10094378U MX5043E (en) | 1977-02-09 | 1978-02-07 | IMPROVED COMPACTING PROCEDURE UNDER PRESSURE OF MIXTURES BASED ON SEMI-HYDRATED PLASTER |
BE185014A BE863776A (en) | 1977-02-09 | 1978-02-08 | PRESSURE COMPACTION PROCESS FOR PLASTER-BASED MIXTURES |
ZA00780763A ZA78763B (en) | 1977-02-09 | 1978-02-08 | Chemical process |
TR2010478A TR20104A (en) | 1977-02-09 | 1978-02-08 | YAS ALCI TASI / PROCESSING FOR COMPRESSION OF THE PLASTER MIX |
IL5399878A IL53998A (en) | 1977-02-09 | 1978-02-08 | Process for compacting plaster-based mixtures under pressue and articles produced thereby |
CA296,478A CA1131431A (en) | 1977-02-09 | 1978-02-08 | Process for compacting under pressure plaster-based mixtures |
ES466766A ES466766A1 (en) | 1977-02-09 | 1978-02-08 | Pressure compacting of settable plaster compositions |
AU33108/78A AU512125B2 (en) | 1977-02-09 | 1978-02-08 | Compression moulding of gypsum-plaster compositions |
DK57078A DK57078A (en) | 1977-02-09 | 1978-02-08 | PROCEDURE FOR COMPRESSING Gypsum-containing mixtures UNDER PRESSURE |
IT4797778A IT1104163B (en) | 1977-02-09 | 1978-02-08 | COMPACT PROCESS UNDER PRESSURE OF GYPSUM MIXTURE |
FI780411A FI66167C (en) | 1977-02-09 | 1978-02-08 | FOERFARANDE FOER KOMPAKTERING UNDER TRYCK AV BLANDNINGAR BASERADE PAO HEMIHYDRATGIPS DIHYDRATGIPS OCH VID BEHOV DESSUTANVATTEN |
GB5078/78A GB1593344A (en) | 1977-02-09 | 1978-02-08 | Compression mouldinf of gypsumplaster compositions |
AR27103978A AR216502A1 (en) | 1977-02-09 | 1978-02-09 | A PROCEDURE FOR COMPACTION UNDER PRESSURE OF MIXTURES ESSENTIALLY CONSTITUTING OF SEMIHYDRATED CALCIUM SULPHATE, A WATER SUPPLY MATERIAL SUCH AS DIHYDRATED CALCIUM SULPHATE (GYPSUM) AND WATER |
BR7800779A BR7800779A (en) | 1977-02-09 | 1978-02-09 | IMPROVEMENT IN THE COMPACTING PROCESS UNDER PRESSURE OF MIXTURES ESSENTIALLY CONTAINED BY PLASTER AND A MATERIAL SUPPLY OF WATER AS SINGLE AND / OR WATER GYPSITE |
DE2805523A DE2805523B2 (en) | 1977-02-09 | 1978-02-09 | Process for the production of gypsum components |
AT0092378A AT375905B (en) | 1977-02-09 | 1978-02-09 | METHOD FOR PRODUCING PLASTER COMPONENTS |
PH20768A PH14018A (en) | 1977-02-09 | 1978-02-09 | Process of compacting mixtures containing plastics |
US06/200,084 US4340521A (en) | 1977-02-09 | 1980-10-23 | Pressure compacting of settable plaster compositions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7703561A FR2380234A1 (en) | 1977-02-09 | 1977-02-09 | Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2380234A1 true FR2380234A1 (en) | 1978-09-08 |
FR2380234B1 FR2380234B1 (en) | 1982-08-06 |
Family
ID=9186487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7703561A Granted FR2380234A1 (en) | 1977-02-09 | 1977-02-09 | Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2380234A1 (en) |
ZA (1) | ZA78763B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480274A1 (en) * | 1980-04-11 | 1981-10-16 | Ugine Kuhlmann | BINDERS BASED ON RESIDUAL GYPSUM AND SYNTHETIC ANHYDRITE |
WO1987007257A1 (en) * | 1986-05-29 | 1987-12-03 | Belorussky Politekhnichesky Institut | Composition for making plaster articles |
-
1977
- 1977-02-09 FR FR7703561A patent/FR2380234A1/en active Granted
-
1978
- 1978-02-08 ZA ZA00780763A patent/ZA78763B/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480274A1 (en) * | 1980-04-11 | 1981-10-16 | Ugine Kuhlmann | BINDERS BASED ON RESIDUAL GYPSUM AND SYNTHETIC ANHYDRITE |
WO1987007257A1 (en) * | 1986-05-29 | 1987-12-03 | Belorussky Politekhnichesky Institut | Composition for making plaster articles |
Also Published As
Publication number | Publication date |
---|---|
ZA78763B (en) | 1979-01-31 |
FR2380234B1 (en) | 1982-08-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8300342L (en) | PLANT FOR MANUFACTURE OF CALCIUM SILICATE HYDRATE | |
ES8103717A1 (en) | Process for producing a binder for slurry, mortar, and concrete | |
MY130140A (en) | Hydration retarder | |
GB1549029A (en) | Process for the conversion of gypsum into calcium sulphate hemihydrate | |
ES8300278A1 (en) | Process and device for the elimination of excess water from a mixture of gypsum and water, and products obtained. | |
ES8404300A1 (en) | Gypsum-free cement compositions | |
ATE16380T1 (en) | PROCESS FOR MAKING PLASTER MOLDS. | |
FR2380234A1 (en) | Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength | |
FR2396632A1 (en) | Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength | |
FR2386497A2 (en) | Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength | |
FR2355787A1 (en) | Mortar for wall facings or fixing tiles - where toxic asbestos fibres are replaced by polyethylene fibrils | |
FR2063034A1 (en) | Alpha calcium sulphate hemihydrate | |
ES406265A1 (en) | Method for grouting tendons | |
GB1450246A (en) | Manufacture of shaped articles of calcium sulphate dihydrate | |
GB2017076A (en) | Fiber reinforced composition | |
GB920446A (en) | Improvements in or relating to cementitious compositions | |
FR2196299A1 (en) | Hydraulic plaster mix - contg untreated chemical gypsum whose hydration water causes setting | |
ES465990A1 (en) | Procedure to increase stability to aging of calcinated gypsum mortars. (Machine-translation by Google Translate, not legally binding) | |
GB1159200A (en) | Improvements in Cementitious Compositions | |
ES458593A1 (en) | Process for the manufacture of shaped products from calcium sulphate dihydrate | |
JPS51126986A (en) | Adhesive water repellents | |
NL7414904A (en) | Gypsum mouldings e.g. building blocks - by mixing moist uncalcined calcium sulphate dihydrate with cement and moisture, pressing and drying | |
JPS5261198A (en) | Process for production of prismatic alpha-type gypsum hemihydrate | |
JPS55164285A (en) | Preparation of soil conditioner composition | |
DE3581177D1 (en) | DEVICE FOR THE PRODUCTION OF PLASTER BLOCKS ON A DRY WAY. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |