FR2428619A1 - Setting agent for building mixts. contg. granulated slag - contains gypsum mixed with sodium sulphate and lime or calcium hydroxide - Google Patents

Setting agent for building mixts. contg. granulated slag - contains gypsum mixed with sodium sulphate and lime or calcium hydroxide

Info

Publication number
FR2428619A1
FR2428619A1 FR7817509A FR7817509A FR2428619A1 FR 2428619 A1 FR2428619 A1 FR 2428619A1 FR 7817509 A FR7817509 A FR 7817509A FR 7817509 A FR7817509 A FR 7817509A FR 2428619 A1 FR2428619 A1 FR 2428619A1
Authority
FR
France
Prior art keywords
mixt
gypsum
pref
mixts
building
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
FR7817509A
Other languages
French (fr)
Other versions
FR2428619B1 (en
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.)
SETEC GEOTECHNIQUE
Original Assignee
SETEC GEOTECHNIQUE
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 SETEC GEOTECHNIQUE filed Critical SETEC GEOTECHNIQUE
Priority to FR7817509A priority Critical patent/FR2428619A1/en
Priority to LU81376A priority patent/LU81376A1/en
Priority to BE0/195703A priority patent/BE876929A/en
Publication of FR2428619A1 publication Critical patent/FR2428619A1/en
Application granted granted Critical
Publication of FR2428619B1 publication Critical patent/FR2428619B1/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
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Abstract

The mixts. are used for roadworks, civil engineering, or buildings, and contain blast furnace slag and other granulates or similar materials. The agent consists of a mixt. of dry or partly dehydrated gypsum to which is added, w.r.t. the wt. of the gypsum 10-24% Na2SO4 and 3.7-9% CaO. the final temp. of the mixt. being between room temp and 50 degrees C and the mixt. possessing a compsn. similar to that obtd. by adding NaOH to gypsum. The pref. mixt. contains gypsum with 13-20% Na2SO4 and 4.5-8% CaO, and the gypsum pref. has a size of 50-300 mu m. When using CaSO4, 1/2H2O, 13% Na2SO4 and 7% CaO are pref. used in the mixt. The resulting setting agent pref. forms 0.5-1.5% of the building mixt. of slag and granulate. As compared with conventional agents contg. gypsum and NaOH, the invention provides an agent which is less corrosive, less hygroscopic and of lower cost.
FR7817509A 1978-06-12 1978-06-12 Setting agent for building mixts. contg. granulated slag - contains gypsum mixed with sodium sulphate and lime or calcium hydroxide Granted FR2428619A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7817509A FR2428619A1 (en) 1978-06-12 1978-06-12 Setting agent for building mixts. contg. granulated slag - contains gypsum mixed with sodium sulphate and lime or calcium hydroxide
LU81376A LU81376A1 (en) 1978-06-12 1979-06-11 PROCESS FOR THE PREPARATION OF A SETTING ADDITIVE FOR MIXTURES BASED ON HAUT-FOURNEAU PELLET MILK, CONSISTING OF SODA SULPHATE AND LIME, AND THUS PREPARED ADDITIVE
BE0/195703A BE876929A (en) 1978-06-12 1979-06-12 PROCESS FOR THE PREPARATION OF A SETTING ADDITIVE FOR MIXTURES BASED ON GRANULATED MILK, AND ADDITIVE THUS PREPARED

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7817509A FR2428619A1 (en) 1978-06-12 1978-06-12 Setting agent for building mixts. contg. granulated slag - contains gypsum mixed with sodium sulphate and lime or calcium hydroxide

Publications (2)

Publication Number Publication Date
FR2428619A1 true FR2428619A1 (en) 1980-01-11
FR2428619B1 FR2428619B1 (en) 1982-05-14

Family

ID=9209371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7817509A Granted FR2428619A1 (en) 1978-06-12 1978-06-12 Setting agent for building mixts. contg. granulated slag - contains gypsum mixed with sodium sulphate and lime or calcium hydroxide

Country Status (3)

Country Link
BE (1) BE876929A (en)
FR (1) FR2428619A1 (en)
LU (1) LU81376A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588855A1 (en) * 1985-10-22 1987-04-24 Lorrain Michel New composition of a material based on blast furnace slag
FR2777274A1 (en) * 1998-04-09 1999-10-15 Mecaroute Road and civil engineering infrastructures, such as bed and foundation layers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE400255R (en) * 1933-04-24 1934-01-31
US1997782A (en) * 1931-03-07 1935-04-16 Windecker Robert Erwin Manufacture of cement
GB427227A (en) * 1933-04-24 1935-04-17 Arthur Oscar Purdon Improvements in processes of manufacturing cement, mortars and concretes
JPS4921284A (en) * 1972-06-17 1974-02-25

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997782A (en) * 1931-03-07 1935-04-16 Windecker Robert Erwin Manufacture of cement
BE400255R (en) * 1933-04-24 1934-01-31
GB427227A (en) * 1933-04-24 1935-04-17 Arthur Oscar Purdon Improvements in processes of manufacturing cement, mortars and concretes
JPS4921284A (en) * 1972-06-17 1974-02-25

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588855A1 (en) * 1985-10-22 1987-04-24 Lorrain Michel New composition of a material based on blast furnace slag
FR2777274A1 (en) * 1998-04-09 1999-10-15 Mecaroute Road and civil engineering infrastructures, such as bed and foundation layers
US6793851B1 (en) 1998-04-09 2004-09-21 Mecaroute Process for manufacturing infrastructures based on vitrified blast-furnace slag and additive used

Also Published As

Publication number Publication date
LU81376A1 (en) 1979-09-12
BE876929A (en) 1979-10-01
FR2428619B1 (en) 1982-05-14

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