CA1064972A - Glassy calcium silicate fibers made from phosphorus slag - Google Patents
Glassy calcium silicate fibers made from phosphorus slagInfo
- Publication number
- CA1064972A CA1064972A CA228,406A CA228406A CA1064972A CA 1064972 A CA1064972 A CA 1064972A CA 228406 A CA228406 A CA 228406A CA 1064972 A CA1064972 A CA 1064972A
- Authority
- CA
- Canada
- Prior art keywords
- weight
- fiber
- slag
- calcium silicate
- fibers
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/001—Alkali-resistant fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/001—Alkali-resistant fibres
- C03C13/002—Alkali-resistant fibres containing zirconium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Inorganic Fibers (AREA)
- Glass Compositions (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The invention concerns the use of phosphorus slag for the production of glass fibers. The chemical compo-sition of these fibers falls in the range of 10 to 60 weight % CaO, 35 to 75 weight % SiO2 and 0 to 20 weight % Al2O3. The content of iron and alkali metal oxide impurities amounts altogether at most to 2 weight %.
The invention concerns the use of phosphorus slag for the production of glass fibers. The chemical compo-sition of these fibers falls in the range of 10 to 60 weight % CaO, 35 to 75 weight % SiO2 and 0 to 20 weight % Al2O3. The content of iron and alkali metal oxide impurities amounts altogether at most to 2 weight %.
Description
1d:~6497~
1 The invention concerns the use of phosphsrus slag
1 The invention concerns the use of phosphsrus slag
2 for the production of glass fibers. The chemical composition
3 of these fibers falls in the range of 10 to 60 weight % CaO,
4 35 to 7S weight % SiO2 and O to 20 weight % A1203. The content of iron and alkali metal oxide impurities amounts 6 altogether at most to 2 weight %. The preferred composition 7 is 15-50 weight % CaO, 40-65 weight % SiO2 and 1-20 weight 8 % A1203. The fibers are produced from the slag resulting in 9 the electro~hermal manufacture of phosphorus and are resistant to basic solutions, especially to solutions as they are found 11 in concrete. The spinning of the fibers from the molten 12 phosphorus slag is economical because the CaO and SiO2 13 components therein are already present in moLten orm.
14 The fabrication of calclum silicate ~ilaments of glassy structure from the phosphorus slag was surprising 16 because, as is known, it is strongly inclined to crystallize 17 and therefore can be produced by simple tempering of wollas-18 to,nite. The molten phosphorus slag is poured off after tappin 19 and solidifies as slag cinder. The phosphorus slag is obtaine especially ree from iron and Eerrophosphorus iE one keeps the 21 slag formed'in the phosphorus urnace at about tapping 22 ~emperature for a cer'tain time as a thick layer and then 23 separates the phosphorus slag, free from metallic phase and 2~ ferrophosphorus, from the impurities concentrating therebelow.
However, the slag can also be quenched in water 26 in known manner whereby a glassy slag sand results from 27 which, if desired, impurities can be removed mechanically.
28 These products are remelted and then processed into glass ' -2-, --\ 1~64~Z
1 fibers according to known processes. However, one can also 2 additionally add substances containing A1203 and/or SiO2 3 such as, for instance, alumina, kaolin or industrial waste 4 products such as SiO2 dust in order to lower the melting point of the slag. Furthermore, a process step can be -6 saved i the still liquid slag is processed promptly into 7 glass ~ibers subsequent to the recovery of the phosphorus, 8 optionally by addition of substances containing A1203 9 and/or SiO2, The natural impurities of th~ phosphorus slag 11 consist especially o alkali and iron oxides. They should 12 amount at most to 2 weight % of the fibers. It is desirable 13 if the content of impurities amounts to at most 1%. Small 14 contents of fluorine and phosphorus are harmless.
I such glass fibers already show a substantially 16 greater resistance to alkaline solutions in building materials 17 made from inorganic binding material compared to known 18 products, then a further increase o~ the alkali resistance 19 can be obtained i~ certain materials are added in certain quantities to the s~arting mixtures ~or the production o 21 the calcium silica~e fibers o glassy s~ructure.
22 ~ pre~erred embodiment of the inst~nt invention 23 therefore concerns the use of calcium silicate fibers of 24 glassy structure modified by admixed materials, which are drawn fro~ phosphorus slag, to reinforce building materials 26 made of inorganic binding agents. It is essential that 27 because o the additives the pH of the glass fibers in 28 water varies and thus can be adapted to the respective 29 pH value of the building material environment.
_3_ 1~69~97;i~;
, ~ Especially TiO2, ZrO2, Cr203 and ZnO alone or 2 in admixture, as well as products containing these oxides, 3 are suitable additives to the phosphorus slag. The addition 4 al quantities amount to about 0.1 to 10, preferably about 0.5 to 7 weight % relative to the starting mixture. Especially 6 resistant in the alkaline environment of concrete are 7 calcium silicate fibers of glassy strucutre containing about 8 2 to 5 weight % of ZnO and whose composition falls in the 9 range of about 15 to 50 weight % of CaO, abou~ 40 to 65 weight ~/~ of SiO2, and about 1 to 20 weight % of A1203.
11 The additives are admixed with the cinder or the 12 granulated, glassy slag sand, whereupon the mixture is 13 melted and then glass fibers are drawn according to known 14 processes. However, one can also add the additives to the still-liquid slag subsequent to the recovery of phosphorus 16 and then process it into glass fibers immediately or a~ter 17 granulation and melting. In the first case a process step 18 is thereby saved.
19 Especially suitable for use according to the present invention is phosphorus slag which is kept at about 21 tapping te~peratu~e before the addition of the additives and 22 thus i9 prac~ically completely puriEied by the metallic phase 23 and ferrophosphorus.
24 Especially preferred are glass fibers in the form o tows of endless glass fibers, glass fiber mats, rope-like 26 constructi~ns or sections o glass fiber bundles having a 27 length between about 0,05 and 5.0 cm and a diameter o~
28 ~ abou 0.009 to 0,0~ mm. They have ~ high modulus of elasticit-, -1 1~1~4~7~
within th~ range of about 5, 600 t~o about 6 ,400 kg/mm and 2 tensile str~ngth of the order of magnitude of about 800 3 ~o 1300 kg/cm2. X-ray diffraction analyses establish that 4 the modified calcium silicate ~ibers used according to the instant invention have no crystalline phase but are com-6 pletely glassy solids.
7 It is evident from the following Table 1 that 8 the pH value of the glass fibers vari2s with the particular 9 additive. The pH values were obtained as follows: in each case 7 parts by weight of glass fibers of about the same 11 length and diameter were shaken in plastic vessels with 12 10 parts by weight of doubly-distilled water and then the 13 pH value of the fluid was determined four times within two 14 weeks,after settling of the solid material. The ollowlng pH values resulted:
16 .
18 Material Content o~ pH value SiO2 CaO
19 _ ~ in /0 ~ ~ _ 1. Silica^glass fiber 99 - 7.5 21 2, E~gla~s iber 55 21 10.4 22 3. Glass fibe~ according to 60 25 10.9 invention 23 Glass fiber according to 2~ invention, with:
4. 3% TiO2 40 47 ll.O
26 5~ 3% Cr203 40 47 11.4 27 6. 3% ZrO2 40 47 11.5 28 7. 3% ZnO 40 47 11.7 29 8. 4% (TiO2+ZnO+Cr203+ZrO2) 11.5
14 The fabrication of calclum silicate ~ilaments of glassy structure from the phosphorus slag was surprising 16 because, as is known, it is strongly inclined to crystallize 17 and therefore can be produced by simple tempering of wollas-18 to,nite. The molten phosphorus slag is poured off after tappin 19 and solidifies as slag cinder. The phosphorus slag is obtaine especially ree from iron and Eerrophosphorus iE one keeps the 21 slag formed'in the phosphorus urnace at about tapping 22 ~emperature for a cer'tain time as a thick layer and then 23 separates the phosphorus slag, free from metallic phase and 2~ ferrophosphorus, from the impurities concentrating therebelow.
However, the slag can also be quenched in water 26 in known manner whereby a glassy slag sand results from 27 which, if desired, impurities can be removed mechanically.
28 These products are remelted and then processed into glass ' -2-, --\ 1~64~Z
1 fibers according to known processes. However, one can also 2 additionally add substances containing A1203 and/or SiO2 3 such as, for instance, alumina, kaolin or industrial waste 4 products such as SiO2 dust in order to lower the melting point of the slag. Furthermore, a process step can be -6 saved i the still liquid slag is processed promptly into 7 glass ~ibers subsequent to the recovery of the phosphorus, 8 optionally by addition of substances containing A1203 9 and/or SiO2, The natural impurities of th~ phosphorus slag 11 consist especially o alkali and iron oxides. They should 12 amount at most to 2 weight % of the fibers. It is desirable 13 if the content of impurities amounts to at most 1%. Small 14 contents of fluorine and phosphorus are harmless.
I such glass fibers already show a substantially 16 greater resistance to alkaline solutions in building materials 17 made from inorganic binding material compared to known 18 products, then a further increase o~ the alkali resistance 19 can be obtained i~ certain materials are added in certain quantities to the s~arting mixtures ~or the production o 21 the calcium silica~e fibers o glassy s~ructure.
22 ~ pre~erred embodiment of the inst~nt invention 23 therefore concerns the use of calcium silicate fibers of 24 glassy structure modified by admixed materials, which are drawn fro~ phosphorus slag, to reinforce building materials 26 made of inorganic binding agents. It is essential that 27 because o the additives the pH of the glass fibers in 28 water varies and thus can be adapted to the respective 29 pH value of the building material environment.
_3_ 1~69~97;i~;
, ~ Especially TiO2, ZrO2, Cr203 and ZnO alone or 2 in admixture, as well as products containing these oxides, 3 are suitable additives to the phosphorus slag. The addition 4 al quantities amount to about 0.1 to 10, preferably about 0.5 to 7 weight % relative to the starting mixture. Especially 6 resistant in the alkaline environment of concrete are 7 calcium silicate fibers of glassy strucutre containing about 8 2 to 5 weight % of ZnO and whose composition falls in the 9 range of about 15 to 50 weight % of CaO, abou~ 40 to 65 weight ~/~ of SiO2, and about 1 to 20 weight % of A1203.
11 The additives are admixed with the cinder or the 12 granulated, glassy slag sand, whereupon the mixture is 13 melted and then glass fibers are drawn according to known 14 processes. However, one can also add the additives to the still-liquid slag subsequent to the recovery of phosphorus 16 and then process it into glass fibers immediately or a~ter 17 granulation and melting. In the first case a process step 18 is thereby saved.
19 Especially suitable for use according to the present invention is phosphorus slag which is kept at about 21 tapping te~peratu~e before the addition of the additives and 22 thus i9 prac~ically completely puriEied by the metallic phase 23 and ferrophosphorus.
24 Especially preferred are glass fibers in the form o tows of endless glass fibers, glass fiber mats, rope-like 26 constructi~ns or sections o glass fiber bundles having a 27 length between about 0,05 and 5.0 cm and a diameter o~
28 ~ abou 0.009 to 0,0~ mm. They have ~ high modulus of elasticit-, -1 1~1~4~7~
within th~ range of about 5, 600 t~o about 6 ,400 kg/mm and 2 tensile str~ngth of the order of magnitude of about 800 3 ~o 1300 kg/cm2. X-ray diffraction analyses establish that 4 the modified calcium silicate ~ibers used according to the instant invention have no crystalline phase but are com-6 pletely glassy solids.
7 It is evident from the following Table 1 that 8 the pH value of the glass fibers vari2s with the particular 9 additive. The pH values were obtained as follows: in each case 7 parts by weight of glass fibers of about the same 11 length and diameter were shaken in plastic vessels with 12 10 parts by weight of doubly-distilled water and then the 13 pH value of the fluid was determined four times within two 14 weeks,after settling of the solid material. The ollowlng pH values resulted:
16 .
18 Material Content o~ pH value SiO2 CaO
19 _ ~ in /0 ~ ~ _ 1. Silica^glass fiber 99 - 7.5 21 2, E~gla~s iber 55 21 10.4 22 3. Glass fibe~ according to 60 25 10.9 invention 23 Glass fiber according to 2~ invention, with:
4. 3% TiO2 40 47 ll.O
26 5~ 3% Cr203 40 47 11.4 27 6. 3% ZrO2 40 47 11.5 28 7. 3% ZnO 40 47 11.7 29 8. 4% (TiO2+ZnO+Cr203+ZrO2) 11.5
-5-~64g72 1 Beyond that, the pH value can of course be 2 adjusted by the amount of additive selected in each case.
3 With knowledge of the pH value of the calcium silicate 4 fibers its optimal applicability can also be determined, i.e. that particular fiber is employed for a particular
3 With knowledge of the pH value of the calcium silicate 4 fibers its optimal applicability can also be determined, i.e. that particular fiber is employed for a particular
6 use whose pH value is as close as possible or equal to
7 the pH value of the environ~ent of the building material.
8 Fiber 7 of Table 1 is especially suited fo~ use in rein-
9 forcing concrete.
In order to ascertain the stability of the modified 11 fibers in an environment such as in hardened concrete, 12 prisms having a dimension of 1 x 1 x 6 cm were wrapped 13 and stored under water for 180 days at 20C. Subsequently 1~ the free Ca(OH)2 content o the prisms was chemically determined, These values were compared in each case with 16 the value of the prisms which were produced without ~ibars, 17 this value being taken as 100. Therefore, if the glass 18 fibers react with the Ca(OH)2 then the free Ca(0}1)2 19 content of the glass fiber-reinforced prisms must decrease.
In Table 2 there are compiled the relative contents of 21 free Ca(OH)2 in diferent samples after 1~0 days, ~ -6-.
101~9~972 l TA13LE 2 Prisms, produced by additionKelative content of of 5% of fibers Lree Ca(OH)2 after Without addition lOO
6 Fibers without additive 89 7 Fibers with 3% TiO2 as additive 97 8 3% ZrO2 additive 100 3% Cr203 additive 98 3% ZnO additive lOO
ll 4% (TiO2~ ZrO2 ~ Cr203 -~ ZnO) 99 12 __ ~ __ 13 It.is evident that the fibers without additive 14 reacted more strongly ttlan the fibers with additive~ It is also evident that the calcium silicate fibers used according 16 to the invention have different reaction values according 17 to the additive and the amount added. The results also 18 show that the use of a calcium silicate fiber of glassy l9 structure containing ZnO as additive is especially suitable for the reinEorcement oL concrete.
21 The modi~ied calcium silicate Eib~rs of glassy struc-22 ture are also suitable for the reinforcement of concrete 23 based on alumina cement and Portland cement. Even if the 2~ concrete does not have steel reinLorcement, the novel fibers increase the tensile strength of concrete as well as its 26 rigidity and impact strength and its resistance to chipping 27 off at high temperature stress. The reinforcement of the 28 concre~e with glass fibers can be advantageously combined _7_ l ~ ii4~72 1 ¦ with ~hat by steel inserts.
I The modified calcium silicate Eiber of glassy 3 ¦ structure is furthermore suitable for the production of 4 ¦ other cement-based building materials, especially those 5 ¦ heretofore reinforced with asbestos fibers such as patent 6 ¦ plasters, flnished mortars and plasters, as well as plates, 7 ¦ corrugated plates, pressure tubes, flower boxes, gutters, roo~
8 1 gutter pipes-and other products identified as asbestos 9 ¦ cement articles.
In order to ascertain the stability of the modified 11 fibers in an environment such as in hardened concrete, 12 prisms having a dimension of 1 x 1 x 6 cm were wrapped 13 and stored under water for 180 days at 20C. Subsequently 1~ the free Ca(OH)2 content o the prisms was chemically determined, These values were compared in each case with 16 the value of the prisms which were produced without ~ibars, 17 this value being taken as 100. Therefore, if the glass 18 fibers react with the Ca(OH)2 then the free Ca(0}1)2 19 content of the glass fiber-reinforced prisms must decrease.
In Table 2 there are compiled the relative contents of 21 free Ca(OH)2 in diferent samples after 1~0 days, ~ -6-.
101~9~972 l TA13LE 2 Prisms, produced by additionKelative content of of 5% of fibers Lree Ca(OH)2 after Without addition lOO
6 Fibers without additive 89 7 Fibers with 3% TiO2 as additive 97 8 3% ZrO2 additive 100 3% Cr203 additive 98 3% ZnO additive lOO
ll 4% (TiO2~ ZrO2 ~ Cr203 -~ ZnO) 99 12 __ ~ __ 13 It.is evident that the fibers without additive 14 reacted more strongly ttlan the fibers with additive~ It is also evident that the calcium silicate fibers used according 16 to the invention have different reaction values according 17 to the additive and the amount added. The results also 18 show that the use of a calcium silicate fiber of glassy l9 structure containing ZnO as additive is especially suitable for the reinEorcement oL concrete.
21 The modi~ied calcium silicate Eib~rs of glassy struc-22 ture are also suitable for the reinforcement of concrete 23 based on alumina cement and Portland cement. Even if the 2~ concrete does not have steel reinLorcement, the novel fibers increase the tensile strength of concrete as well as its 26 rigidity and impact strength and its resistance to chipping 27 off at high temperature stress. The reinforcement of the 28 concre~e with glass fibers can be advantageously combined _7_ l ~ ii4~72 1 ¦ with ~hat by steel inserts.
I The modified calcium silicate Eiber of glassy 3 ¦ structure is furthermore suitable for the production of 4 ¦ other cement-based building materials, especially those 5 ¦ heretofore reinforced with asbestos fibers such as patent 6 ¦ plasters, flnished mortars and plasters, as well as plates, 7 ¦ corrugated plates, pressure tubes, flower boxes, gutters, roo~
8 1 gutter pipes-and other products identified as asbestos 9 ¦ cement articles.
10 ¦ In addition, the use of the modified calcium sili~
11 ¦ cate fiber is possible in building materials based on other
12 ¦ inorganic binding agents such as, for instance, building
13 ¦ lime and gypsum and in building materials based on organic
14 ¦ binding agènts. It can also be used as a filler or plastics.
15 ¦ Another interesting field of application is in
16 ¦ hydrothermally hardened concretes. Here the modified glass
17 ¦ fibers also serve as aggregate for the reinforcement of lB ¦ concrete. They react in the autoclave process only imper-19 ¦ ceptibly with the basic solution and thereEore rernain almost 20 ¦ unchanged in their shape stabili~y. Especially advantageous 21 ¦ in this connection is their light color 90 that the calcium 22 ¦ silicate concretes are no~ only reinforced in ~heir strength 23 I but also keep ~heir light or white color tone.
2~ ¦ In addition it is possible to produce and use 25 ¦ economically other especially laminar glass fiber cement 26 ¦ articles which did not give sa~isfactory results with 27 asbestos ~ibers because of unsuitable E-moduli.
28 l 1 16~64972 It will be appreciated that the instant speci-2 fication and claims are set forth by way of illustration 3 and not li~itatlon, and that various modiications and 4 changes may be made without departing from the spirit and S scop of the present invention.
~12 . .
.
~ l9 ~
22 : ` .
2~ .
2~ :
26 .
28 . .
, ~ _9_ ~.
2~ ¦ In addition it is possible to produce and use 25 ¦ economically other especially laminar glass fiber cement 26 ¦ articles which did not give sa~isfactory results with 27 asbestos ~ibers because of unsuitable E-moduli.
28 l 1 16~64972 It will be appreciated that the instant speci-2 fication and claims are set forth by way of illustration 3 and not li~itatlon, and that various modiications and 4 changes may be made without departing from the spirit and S scop of the present invention.
~12 . .
.
~ l9 ~
22 : ` .
2~ .
2~ :
26 .
28 . .
, ~ _9_ ~.
Claims (10)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Calcium silicate fiber of glassy structure made from a phosphorus slag and of the approximate % composition by weight said fiber further comprising 0.1 to 10% by weight of at least one modifying oxide selected from the group consisting of ZnO, ZrO2, Cr2O3 and TiO2.
2. Fiber according to claim 1, wherein the modifying oxide is present in about 0.5 to 7% by weight.
3. Fiber according to claim 2, of the approximate composition by weight
4. A calcium silicate fiber as claimed in claim 1, combined with an inorganic binder, the combination to be used as a building material.
5. A fiber as claimed in claim 2, combined with an in-organic binder, the combination to be used as a building material.
6. The combination claimed in claim 4, wherein the PH value of the inorganic binder is approximately equal to that of the calcium silicate fiber.
7. A fiber as claimed in claim 3, combined with an inorganic binder, the combination to be used as a building material.
8. The process which comprises forming a fiber as claimed in claim 1, by melt spinning molten phosphorus slag.
9. The process of claim 8, wherein the slag is of approximate % composition by weight therebeing added to the slag prior to spinning about 0.5 to 7%
by weight of at least one modifying oxide selected from the group consisting of ZnO, ZrO2, Cr2O3, and TiO2.
by weight of at least one modifying oxide selected from the group consisting of ZnO, ZrO2, Cr2O3, and TiO2.
10. A fiber as claimed in claim 1, combined with a plastic material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742427770 DE2427770C3 (en) | 1974-06-08 | Glass fiber reinforced building material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1064972A true CA1064972A (en) | 1979-10-23 |
Family
ID=5917675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA228,406A Expired CA1064972A (en) | 1974-06-08 | 1975-06-03 | Glassy calcium silicate fibers made from phosphorus slag |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT371093B (en) |
| BE (1) | BE829826A (en) |
| CA (1) | CA1064972A (en) |
| CH (1) | CH598151A5 (en) |
| ES (1) | ES438329A1 (en) |
| FR (1) | FR2273774A1 (en) |
| GB (1) | GB1494408A (en) |
| NL (1) | NL7506646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2609870C2 (en) * | 2011-07-13 | 2017-02-06 | КАДОРЕЛЬ Катрин | Composite part to endosseous implantation and method of said part making |
| CN111548019A (en) * | 2020-06-08 | 2020-08-18 | 昆明理工大学 | Method for integrated coproduction of coal gas, yellow phosphorus and building materials |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2717464B1 (en) * | 1994-03-15 | 1996-05-24 | Vetrotex France Sa | Glass fibers intended for the reinforcement of organic and composite materials obtained. |
| CN111960663A (en) * | 2020-08-28 | 2020-11-20 | 西安建筑科技大学 | Additive for enhancing stability of mineral wool, mineral wool and preparation method |
-
1975
- 1975-06-02 CH CH709375A patent/CH598151A5/xx not_active IP Right Cessation
- 1975-06-03 CA CA228,406A patent/CA1064972A/en not_active Expired
- 1975-06-03 BE BE156994A patent/BE829826A/en unknown
- 1975-06-04 NL NL7506646A patent/NL7506646A/en not_active Application Discontinuation
- 1975-06-05 AT AT0426975A patent/AT371093B/en not_active IP Right Cessation
- 1975-06-05 GB GB2431175A patent/GB1494408A/en not_active Expired
- 1975-06-06 FR FR7517812A patent/FR2273774A1/en active Granted
- 1975-06-07 ES ES438329A patent/ES438329A1/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2609870C2 (en) * | 2011-07-13 | 2017-02-06 | КАДОРЕЛЬ Катрин | Composite part to endosseous implantation and method of said part making |
| CN111548019A (en) * | 2020-06-08 | 2020-08-18 | 昆明理工大学 | Method for integrated coproduction of coal gas, yellow phosphorus and building materials |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1494408A (en) | 1977-12-07 |
| FR2273774B1 (en) | 1982-05-07 |
| FR2273774A1 (en) | 1976-01-02 |
| CH598151A5 (en) | 1978-04-28 |
| ES438329A1 (en) | 1977-01-16 |
| BE829826A (en) | 1975-10-01 |
| ATA426975A (en) | 1982-10-15 |
| AT371093B (en) | 1983-05-25 |
| NL7506646A (en) | 1975-12-10 |
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