DE738268C - Process for the production of acid-proof, water-resistant, liquid-impermeable cement - Google Patents
Process for the production of acid-proof, water-resistant, liquid-impermeable cementInfo
- Publication number
- DE738268C DE738268C DEI65260D DEI0065260D DE738268C DE 738268 C DE738268 C DE 738268C DE I65260 D DEI65260 D DE I65260D DE I0065260 D DEI0065260 D DE I0065260D DE 738268 C DE738268 C DE 738268C
- Authority
- DE
- Germany
- Prior art keywords
- water
- acid
- resistant
- production
- liquid
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 6
- 239000004568 cement Substances 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 235000019353 potassium silicate Nutrition 0.000 claims description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000003513 alkali Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- MEYPRMGRFQCXHY-UHFFFAOYSA-N [Na].F[Si](F)(F)F Chemical compound [Na].F[Si](F)(F)F MEYPRMGRFQCXHY-UHFFFAOYSA-N 0.000 description 1
- OZAOTUWBEKTDTD-UHFFFAOYSA-N [Si](F)(F)(F)F.[Ca] Chemical compound [Si](F)(F)(F)F.[Ca] OZAOTUWBEKTDTD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/04—Alkali metal or ammonium silicate cements ; Alkyl silicate cements; Silica sol cements; Soluble silicate cements
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)
Description
Verfahren zur Herstellung säurefester, wasserbeständiger, flüssigkeitsundurchlässiger Kittungen Gegenstand unseres Patents 718 795 ist ein Verfahren zur Herstellung säurefester, wasserbeständiger und flüssigkeitsundurchlässiger Kittungen aus Mörteln, die Natronwasserglas und alkalireaktionsfähige Stoffe enthalten, wobei solche Wasserglaslösungen für das Anmischen der Mörtel verwendet werden, in denen das Verhältnis von Kieselsäure zu Wasser größer als r :2,5, zweckmäßig zwischen r : r,5 und r :2,0, ist.Process for the production of acid-proof, water-resistant, liquid-impermeable Putties The subject of our patent 718 795 is a process for the production of acid-resistant, water-resistant and liquid-impermeable putties made from mortars, the soda waterglass and contain alkali-reactive substances, such water glass solutions for the mixing of the mortar used in which the ratio of silica to water is greater than r: 2.5, expediently between r: r.5 and r: 2.0.
Es wurde nun gefunden, daß außer dem Verhältnis von Kieselsäure zu Wasser auch noch das Mengenverhältnis von Kieselsäure zu Alkali, für die Erzielung einer säuredichten Kittung wesentlich ist und daß insbesondere auch solche Massen für diesen Zweck vorteilhaft sind, bei deren Bereitung solche Wassergläser nach dem Hauptpatent verwendet werden, in denen das Verhältnis von Kieselsäure zu Na20 größer als 3,0 : r ist. Für die Verwendung in der Technik kommen Wassergläser mit einem Verhältnis von Si 02 :Na. 0 bis etwa 3,8 : r in Betracht. Die Verwendung solcher Wassergläser bietet den Vorteil, daß infolge des verhältnismäßig niedrigen Alkaligehaltes der Gehalt der Kittungen an wasserlöslichen Bestandteilen sehr niedrig ist, was für die Erzielung der größtmöglichen Dichte besondere Bedeutung hat. Außerdem bieten diese neuen Kittungen auch den Vorteil, daß in diesen auch entsprechend der verhältnismäßig geringen Alkalimenge des verwendeten Wasserglases nur verhältnismäßig niedrige Mengen von Erhärtungsbeschleunigern verwendet zu werden brauchen. Als Erhärtungsbeschleuniger dienen hierbei vorzugsweise Silikofluoride. Wegen der geringeren Alkalimenge im Anmachewasserglas können bei Verwendung von Silikofluoriden deren Menge für die Erhärtung geringer sein. Dadurch enthalten die fertigen Kittungen gemäß vorliegender Erfindung weniger Fluor als solche, bei ddren Bereitung alkalireicheres Wasserglas verwendet wurde, was günstig für die chemische Beständigkeit der Kittungen ist, insbesondere wenn diese Kittungen mit Schwefelsäure in Berührung kommen.It has now been found that, in addition to the ratio of silica to water, the quantitative ratio of silica to alkali is also essential for achieving acid-tight cement and that especially those compositions are advantageous for this purpose when such water glasses are prepared according to the main patent in which the ratio of silica to Na20 is greater than 3.0: r. Water glasses with a ratio of Si 02 : Na are used in technology. 0 to about 3.8: r can be considered. The use of such water glasses offers the advantage that, as a result of the relatively low alkali content, the content of water-soluble components in the cement is very low, which is of particular importance for achieving the greatest possible density. In addition, these new putties also offer the advantage that, in accordance with the relatively small amount of alkali in the water glass used, only relatively small amounts of hardening accelerators need to be used in them. Silicofluorides are preferably used as hardening accelerators. Because of the lower amount of alkali in the mixing water glass, the amount of silicon fluoride used for hardening can be lower. As a result, the finished putties according to the present invention contain less fluorine than those in which more alkali-rich waterglass was used in the preparation, which is beneficial for the chemical resistance of the putties, especially if these putties come into contact with sulfuric acid.
Beispiel 91,1 g Quarzmehl werden mit 7,9 g Natriumsiliciumfluorid und i g Calciumsiliciumfluorid vermengt und mit etwa 40 ccm einer Natronwasserglaslösung vom spezifischen Gewicht 1, 43 und einem Verhältnis von Si 02 : H2 O wie 1:2,o und einem Verhältnis von Na20 : Si02 wie 1 :3,3 angemischt. Die Verarbeitungszeit der Kittmasse beträgt 1/2 Stunde. Die erhärteten Kittungen sind praktisch flüssigkeitsundurchlässig und. dabei säurebeständig.Example 91.1 g of quartz flour are mixed with 7.9 g of sodium silicon fluoride and ig calcium silicon fluoride and with about 40 cc of a soda waterglass solution with a specific gravity of 1.43 and a ratio of SiO 2: H 2 O such as 1: 2, o and a ratio of Na 2 O : Si02 as 1 : 3.3 mixed. The processing time of the putty is 1/2 hour. The hardened putties are practically impermeable to liquids and. acid-resistant.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI65260D DE738268C (en) | 1939-07-26 | 1939-07-26 | Process for the production of acid-proof, water-resistant, liquid-impermeable cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI65260D DE738268C (en) | 1939-07-26 | 1939-07-26 | Process for the production of acid-proof, water-resistant, liquid-impermeable cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE738268C true DE738268C (en) | 1943-08-09 |
Family
ID=7196306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEI65260D Expired DE738268C (en) | 1939-07-26 | 1939-07-26 | Process for the production of acid-proof, water-resistant, liquid-impermeable cement |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE738268C (en) |
-
1939
- 1939-07-26 DE DEI65260D patent/DE738268C/en not_active Expired
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