FR2396632A1 - 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 strength

Info

Publication number
FR2396632A1
FR2396632A1 FR7720773A FR7720773A FR2396632A1 FR 2396632 A1 FR2396632 A1 FR 2396632A1 FR 7720773 A FR7720773 A FR 7720773A FR 7720773 A FR7720773 A FR 7720773A FR 2396632 A1 FR2396632 A1 FR 2396632A1
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
Application number
FR7720773A
Other languages
French (fr)
Other versions
FR2396632B1 (en
Inventor
Michel Deleuil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Priority to FR7720773A priority Critical patent/FR2396632A1/en
Priority to NL7801229A priority patent/NL7801229A/en
Priority to JP1288978A priority patent/JPS53124536A/en
Priority to GR55380A priority patent/GR63170B/en
Priority to MX10094378U priority patent/MX5043E/en
Priority to LU79017A priority patent/LU79017A1/en
Priority to DK57078A priority patent/DK57078A/en
Priority to TR2010478A priority patent/TR20104A/en
Priority to ES466766A priority patent/ES466766A1/en
Priority to FI780411A priority patent/FI66167C/en
Priority to IL5399878A priority patent/IL53998A/en
Priority to AU33108/78A priority patent/AU512125B2/en
Priority to BE185014A priority patent/BE863776A/en
Priority to CA296,478A priority patent/CA1131431A/en
Priority to IT4797778A priority patent/IT1104163B/en
Priority to GB5078/78A priority patent/GB1593344A/en
Priority to AR27103978A priority patent/AR216502A1/en
Priority to PH20768A priority patent/PH14018A/en
Priority to BR7800779A priority patent/BR7800779A/en
Priority to DE2805523A priority patent/DE2805523B2/en
Publication of FR2396632A1 publication Critical patent/FR2396632A1/en
Priority to US06/200,084 priority patent/US4340521A/en
Application granted granted Critical
Publication of FR2396632B1 publication Critical patent/FR2396632B1/fr
Granted legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

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.
FR7720773A 1977-02-09 1977-07-06 Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength Granted FR2396632A1 (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
FR7720773A FR2396632A1 (en) 1977-07-06 1977-07-06 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.
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
LU79017A LU79017A1 (en) 1977-02-09 1978-02-07 PRESSURE COMPACTION PROCESS FOR PLASTER-BASED MIXTURES
JP1288978A JPS53124536A (en) 1977-02-09 1978-02-07 Method of compressing plasterrbase mixture under pressure
AU33108/78A AU512125B2 (en) 1977-02-09 1978-02-08 Compression moulding of gypsum-plaster compositions
ES466766A ES466766A1 (en) 1977-02-09 1978-02-08 Pressure compacting of settable plaster compositions
FI780411A FI66167C (en) 1977-02-09 1978-02-08 FOERFARANDE FOER KOMPAKTERING UNDER TRYCK AV BLANDNINGAR BASERADE PAO HEMIHYDRATGIPS DIHYDRATGIPS OCH VID BEHOV DESSUTANVATTEN
IL5399878A IL53998A (en) 1977-02-09 1978-02-08 Process for compacting plaster-based mixtures under pressue and articles produced thereby
DK57078A DK57078A (en) 1977-02-09 1978-02-08 PROCEDURE FOR COMPRESSING Gypsum-containing mixtures UNDER PRESSURE
BE185014A BE863776A (en) 1977-02-09 1978-02-08 PRESSURE COMPACTION PROCESS FOR PLASTER-BASED MIXTURES
CA296,478A CA1131431A (en) 1977-02-09 1978-02-08 Process for compacting under pressure plaster-based mixtures
IT4797778A IT1104163B (en) 1977-02-09 1978-02-08 COMPACT PROCESS UNDER PRESSURE OF GYPSUM MIXTURE
GB5078/78A GB1593344A (en) 1977-02-09 1978-02-08 Compression mouldinf of gypsumplaster compositions
TR2010478A TR20104A (en) 1977-02-09 1978-02-08 YAS ALCI TASI / PROCESSING FOR COMPRESSION OF THE PLASTER MIX
PH20768A PH14018A (en) 1977-02-09 1978-02-09 Process of compacting mixtures containing plastics
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
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
DE2805523A DE2805523B2 (en) 1977-02-09 1978-02-09 Process for the production of gypsum components
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
FR7720773A FR2396632A1 (en) 1977-07-06 1977-07-06 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
FR2396632A1 true FR2396632A1 (en) 1979-02-02
FR2396632B1 FR2396632B1 (en) 1982-11-05

Family

ID=9193057

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7720773A Granted FR2396632A1 (en) 1977-02-09 1977-07-06 Low pressure moulding of plaster contg. compsns. - comprising calcium sulphate and a water-supplying material and achieving high mechanical strength

Country Status (1)

Country Link
FR (1) FR2396632A1 (en)

Also Published As

Publication number Publication date
FR2396632B1 (en) 1982-11-05

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Legal Events

Date Code Title Description
ST Notification of lapse