GB879182A - Low water loss cement slurry comprising dextran - Google Patents

Low water loss cement slurry comprising dextran

Info

Publication number
GB879182A
GB879182A GB196658A GB196658A GB879182A GB 879182 A GB879182 A GB 879182A GB 196658 A GB196658 A GB 196658A GB 196658 A GB196658 A GB 196658A GB 879182 A GB879182 A GB 879182A
Authority
GB
United Kingdom
Prior art keywords
dextran
cement
water
cements
low water
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
Application number
GB196658A
Inventor
Harry Aubrey Toulmin
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.)
Commonwealth Engineering Company of Ohio
Original Assignee
Commonwealth Engineering Company of Ohio
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 Commonwealth Engineering Company of Ohio filed Critical Commonwealth Engineering Company of Ohio
Priority to GB196658A priority Critical patent/GB879182A/en
Publication of GB879182A publication Critical patent/GB879182A/en
Expired 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • C04B24/383—Cellulose or derivatives thereof

Landscapes

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

Abstract

A composition which will form a pumpable slurry comprises hydraulic cement and a minor amount, sufficient to prevent loss of water from the slurry of (1) a water dispersible dextran having a molecular weight between 5000 and that of native unhydrolyzed microbiologically produced or (2) mixtures of native water-disperisible dextran and fructose produced by the action of dextran-synthesizing strains of Leuconostoc on sucrose. The amount of dextran is between 0,1 and 5,0%, and the term hydraulic cement includes lime; pozzuolana cements e.g. slag cements from slaked lime and granulated blast furnace slag; natural cement and portland cement. The cement may contain up to 3% calcium sulphate or chloride. Fillers e.g. sand or crushed limestone, and retarders may also be present.
GB196658A 1958-01-21 1958-01-21 Low water loss cement slurry comprising dextran Expired GB879182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB196658A GB879182A (en) 1958-01-21 1958-01-21 Low water loss cement slurry comprising dextran

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB196658A GB879182A (en) 1958-01-21 1958-01-21 Low water loss cement slurry comprising dextran

Publications (1)

Publication Number Publication Date
GB879182A true GB879182A (en) 1961-10-04

Family

ID=9731186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB196658A Expired GB879182A (en) 1958-01-21 1958-01-21 Low water loss cement slurry comprising dextran

Country Status (1)

Country Link
GB (1) GB879182A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048624A2 (en) * 2004-11-02 2006-05-11 Halliburton Energy Services, Inc. Biodegradable retarder for cementing applications

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048624A2 (en) * 2004-11-02 2006-05-11 Halliburton Energy Services, Inc. Biodegradable retarder for cementing applications
WO2006048624A3 (en) * 2004-11-02 2006-09-14 Halliburton Energy Serv Inc Biodegradable retarder for cementing applications
US8435344B2 (en) 2004-11-02 2013-05-07 Halliburton Energy Services, Inc. Biodegradable retarder for cementing applications
US8858860B2 (en) 2004-11-02 2014-10-14 Halliburton Energy Services, Inc. Biodegradable retarder for cementing applications

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