SE8800885L - PROCEDURE FOR HYDROPHOBATION OF PLASTIC BUILDING ELEMENTS - Google Patents

PROCEDURE FOR HYDROPHOBATION OF PLASTIC BUILDING ELEMENTS

Info

Publication number
SE8800885L
SE8800885L SE8800885A SE8800885A SE8800885L SE 8800885 L SE8800885 L SE 8800885L SE 8800885 A SE8800885 A SE 8800885A SE 8800885 A SE8800885 A SE 8800885A SE 8800885 L SE8800885 L SE 8800885L
Authority
SE
Sweden
Prior art keywords
water
wax
moulded
hardening
gypsum
Prior art date
Application number
SE8800885A
Other languages
Swedish (sv)
Other versions
SE8800885D0 (en
Inventor
G Kremer
H Gunther
R Grohmann
H Kinne
Original Assignee
Dessau Zementkombinat
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 Dessau Zementkombinat filed Critical Dessau Zementkombinat
Publication of SE8800885D0 publication Critical patent/SE8800885D0/en
Publication of SE8800885L publication Critical patent/SE8800885L/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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/08—Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
    • 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
    • C04B28/141—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 containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/0018—Coating or impregnating "in situ", e.g. impregnating of artificial stone by subsequent melting of a compound added to the artificial stone composition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)

Abstract

Water-repellent treatment of gypsum building units is achieved by processing hard wax or hard-wax-containing combinations with solid hydrocarbons with acid numbers >10 together with a metal salt characterised by better dissociation in respect of calcium sulphate and/or hydroxide and a sulphite lye or a modified sulphite lye with gypsum binder and water or di-hydrate and water within a mixing device so as to produce a mixed paste, whereupon the mixed paste is moulded and, if gypsum binder is used, dried, after hardening, at temperatures above the melting point of the wax used approximately to mass constancy, whereas if dihydrate is used the moulded strand of material is dehydrated in a saturated steam atmosphere at >130 DEG C so as to form hemihydrate and is then hardened, in which case thermal treatment after hardening is unnecessary.
SE8800885A 1987-03-12 1988-03-11 PROCEDURE FOR HYDROPHOBATION OF PLASTIC BUILDING ELEMENTS SE8800885L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD30071887A DD258413A1 (en) 1987-03-12 1987-03-12 METHOD FOR HYDROPHOBICIZING PLASTER ELEMENTS

Publications (2)

Publication Number Publication Date
SE8800885D0 SE8800885D0 (en) 1988-03-11
SE8800885L true SE8800885L (en) 1988-09-13

Family

ID=5587440

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800885A SE8800885L (en) 1987-03-12 1988-03-11 PROCEDURE FOR HYDROPHOBATION OF PLASTIC BUILDING ELEMENTS

Country Status (7)

Country Link
AT (1) ATA40688A (en)
DD (1) DD258413A1 (en)
DE (1) DE3805337A1 (en)
FI (1) FI881170A (en)
GB (1) GB2205562B (en)
NL (1) NL8800551A (en)
SE (1) SE8800885L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035406A1 (en) * 1990-11-07 1992-05-14 Schmid Rene P METHOD FOR PROTECTING POROESIC CONSTRUCTION MATERIALS AGAINST DEALING AGENTS
CA2116483C (en) * 1994-02-25 1997-07-22 Lionel Borenstein Water-resistant gypsum compositions and emulsion for making same
PT846089E (en) * 1995-08-23 2003-08-29 Henkel Kgaa USING AT LEAST A FAT CHEMICAL ADDITIVE IN A COMPOSITION CONTAINING PLASTER
DE19628749B4 (en) * 1996-07-17 2007-06-14 Romonta Gmbh Hydrophobing agent and use of the same for hydrophobing a mineral material
GB9700372D0 (en) * 1997-01-06 1997-02-26 Walker Ind Holdings Limited Water resistant gypsum compositions and emulsions
DE19734302A1 (en) * 1997-08-08 1999-02-11 Fischer Artur Werke Gmbh Curable mortar
JP2004527446A (en) 2001-06-04 2004-09-09 ウォーカー インダストリーズ ホールディングズ リミテッド Formulation of wax emulsion and gypsum composition containing the same
DE102005035515A1 (en) 2005-07-26 2007-02-01 Sasol Wax Gmbh O / W wax dispersions and gypsum products available therefrom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024152C2 (en) * 1980-06-27 1984-04-12 Zschimmer & Schwarz Gmbh & Co Chemische Fabriken, 5420 Lahnstein Mass for making plaster molds
DD160516A3 (en) * 1980-08-06 1983-08-17 Hans Schmidt METHOD FOR PRODUCING A HYDROPHOBIC PLASTER FOR PLASTER PANELS
DD205882A1 (en) * 1982-03-09 1984-01-11 Inst Zement Dessau BRANCH GUNS WITH WATER RESISTANT PROPERTIES

Also Published As

Publication number Publication date
FI881170A (en) 1988-09-13
GB2205562B (en) 1991-09-04
DE3805337A1 (en) 1988-09-22
ATA40688A (en) 1991-06-15
GB8805879D0 (en) 1988-04-13
NL8800551A (en) 1988-10-03
FI881170A0 (en) 1988-03-11
GB2205562A (en) 1988-12-14
DD258413A1 (en) 1988-07-20
DE3805337C2 (en) 1990-06-28
SE8800885D0 (en) 1988-03-11

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8800885-9

Effective date: 19910718