JPS643043A - Hydrofluoric acid anhydrous gypsum composition - Google Patents

Hydrofluoric acid anhydrous gypsum composition

Info

Publication number
JPS643043A
JPS643043A JP15725187A JP15725187A JPS643043A JP S643043 A JPS643043 A JP S643043A JP 15725187 A JP15725187 A JP 15725187A JP 15725187 A JP15725187 A JP 15725187A JP S643043 A JPS643043 A JP S643043A
Authority
JP
Japan
Prior art keywords
composition
hydrofluoric acid
incorporating
anhydrous gypsum
gypsum
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.)
Pending
Application number
JP15725187A
Other languages
Japanese (ja)
Other versions
JPH013043A (en
Inventor
Hirofumi Shimatani
Mikio Wakasugi
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.)
Sumitomo Osaka Cement Co Ltd
Original Assignee
Osaka Cement Co Ltd
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 Osaka Cement Co Ltd filed Critical Osaka Cement Co Ltd
Priority to JP15725187A priority Critical patent/JPS643043A/en
Publication of JPH013043A publication Critical patent/JPH013043A/en
Publication of JPS643043A publication Critical patent/JPS643043A/en
Pending legal-status Critical Current

Links

Landscapes

  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

PURPOSE:To obtain the titled composition with hydraulic rate moderately made promotable, by incorporating proper amount of sulfamic acid or activated clay in a composition comprising hydrofluoric acid anhydrous gypsum and metal sulfate(s) as the curing promotor. CONSTITUTION:The objective composition can be obtained by incorporating (A) a composition prepared by incorporating (i) hydrofluoric acid anhydrous gypsum produced by adding, to a byproduct from hydrofluoric acid manufacturing processes, such amount of calcium hydroxide as to be more than that required for neutralizing the residual acid component with (ii) pref. 0.2-5.0wt.%, based on the gypsum, of at least one kind of curing promotor selected from potassium sulfate, sodium sulfate, aluminum sulfate and potash alum etc. with (B) such amount of sulfamic acid or activated clay as to be pH4-10 after kneading the composition A with water. This composition is suitable for gypsum board plaster etc. without using any setting retarder, also being able to made into self-leveling material by adding, furthermore, a fluidizing agent, viscosity regulator, antifoaming agent etc.
JP15725187A 1987-06-24 1987-06-24 Hydrofluoric acid anhydrous gypsum composition Pending JPS643043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15725187A JPS643043A (en) 1987-06-24 1987-06-24 Hydrofluoric acid anhydrous gypsum composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15725187A JPS643043A (en) 1987-06-24 1987-06-24 Hydrofluoric acid anhydrous gypsum composition

Publications (2)

Publication Number Publication Date
JPH013043A JPH013043A (en) 1989-01-06
JPS643043A true JPS643043A (en) 1989-01-06

Family

ID=15645556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15725187A Pending JPS643043A (en) 1987-06-24 1987-06-24 Hydrofluoric acid anhydrous gypsum composition

Country Status (1)

Country Link
JP (1) JPS643043A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720305A (en) * 1980-07-11 1982-02-02 Nippon Hume Pipe Manufacture of concrete product
JPS5732018A (en) * 1980-08-03 1982-02-20 Tomosada Fukuyama Machine for increasing output for automobile by utilizing its vibration energy and inducing property of exhaust gas
JPS60103060A (en) * 1983-11-07 1985-06-07 大日精化工業株式会社 Fluidizing agent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720305A (en) * 1980-07-11 1982-02-02 Nippon Hume Pipe Manufacture of concrete product
JPS5732018A (en) * 1980-08-03 1982-02-20 Tomosada Fukuyama Machine for increasing output for automobile by utilizing its vibration energy and inducing property of exhaust gas
JPS60103060A (en) * 1983-11-07 1985-06-07 大日精化工業株式会社 Fluidizing agent

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