MD3252F1 - Dry plaster mix - Google Patents

Dry plaster mix

Info

Publication number
MD3252F1
MD3252F1 MDA20060208A MD20060208A MD3252F1 MD 3252 F1 MD3252 F1 MD 3252F1 MD A20060208 A MDA20060208 A MD A20060208A MD 20060208 A MD20060208 A MD 20060208A MD 3252 F1 MD3252 F1 MD 3252F1
Authority
MD
Moldova
Prior art keywords
mixture
plastering
citric acid
beta
cellulose ether
Prior art date
Application number
MDA20060208A
Other languages
Romanian (ro)
Other versions
MD3252G2 (en
Inventor
Tudor Lupascu
Victor Botan
Original Assignee
Institutul De Chimie Al Academiei De Stiinte A Moldovei
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 Institutul De Chimie Al Academiei De Stiinte A Moldovei filed Critical Institutul De Chimie Al Academiei De Stiinte A Moldovei
Priority to MDA20060208A priority Critical patent/MD3252G2/en
Publication of MD3252F1 publication Critical patent/MD3252F1/en
Publication of MD3252G2 publication Critical patent/MD3252G2/en

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
    • C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/147—Calcium sulfate hemi-hydrate with a specific crystal form beta-hemihydrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (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

Inventia se refera la materiale de constructie sipoate fi utilizata pentru prepararea amestecului uscat pentru tencuire. Amestecul include beta -sulfat de calciu semihidrat, calcar macinat, poliacid organic si eter de celuloza, totodata in calitate de poliacid organic si eter de celuloza se foloseste respectiv acid citric si metilhidroxietilceluloza in urmatorul raport al componentelor, % de masa:beta - sulfat de calciu semihidrat 35,0…40,0metilhidroxietilceluloza 0,1…0,4acid citric 0,04…0,06calcar fin macinat restul.Amestecul poate fi pastrat in saci de polietilena ermetizati cel putin un an. Termenul de valabilitate al mortarului pregatit este de 25…30 ore, iar timpul de priza este de 180…240 min. Rezultatul consta in reducerea volumului de munca in procesul de preparare a amestecului pentru tencuire si in majorarea durabilitatii.The invention relates to construction materials which can be used to prepare the dry mixture for plastering. The mixture includes calcium beta-sulfate semi-hydrate, ground limestone, organic polyacid and cellulose ether, also as organic polyacid and cellulose ether citric acid and methylhydroxyethylcellulose are used in the following ratio of components,% by mass: beta-sulfate calcium semihydrate 35.0… 40.0methylhydroxyethylcellulose 0.1… 0.4 citric acid 0.04… 0.06 finely ground limestone the rest. The mixture can be stored in airtight polyethylene bags for at least one year. The shelf life of the prepared mortar is 25… 30 hours, and the setting time is 180… 240 min. The result is a reduction in the workload in the process of preparing the mixture for plastering and an increase in durability.

MDA20060208A 2006-08-08 2006-08-08 Dry plaster mix MD3252G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20060208A MD3252G2 (en) 2006-08-08 2006-08-08 Dry plaster mix

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20060208A MD3252G2 (en) 2006-08-08 2006-08-08 Dry plaster mix

Publications (2)

Publication Number Publication Date
MD3252F1 true MD3252F1 (en) 2007-02-28
MD3252G2 MD3252G2 (en) 2007-09-30

Family

ID=37845206

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20060208A MD3252G2 (en) 2006-08-08 2006-08-08 Dry plaster mix

Country Status (1)

Country Link
MD (1) MD3252G2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD3536G2 (en) * 2007-02-08 2008-10-31 Институт Химии Академии Наук Молдовы Dry plaster mixture on base of cement
MD401Y (en) * 2011-03-23 2011-07-31 Вениамин РАПОПОРТ Building heat-insulating dry mix

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD112C2 (en) * 1988-04-13 1995-09-30 S.A. Ipct "Tehproectconstructia" Composition for plastering-up
MD612G2 (en) * 1996-04-09 1997-06-30 Институт Химии Академии Наук Молдовы Plaster mix

Also Published As

Publication number Publication date
MD3252G2 (en) 2007-09-30

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees