GB891170A - Improvements in or relating to the production of materials containing calcium silicate more especially for thermal insulation - Google Patents
Improvements in or relating to the production of materials containing calcium silicate more especially for thermal insulationInfo
- Publication number
- GB891170A GB891170A GB1277459A GB1277459A GB891170A GB 891170 A GB891170 A GB 891170A GB 1277459 A GB1277459 A GB 1277459A GB 1277459 A GB1277459 A GB 1277459A GB 891170 A GB891170 A GB 891170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cement
- silicate
- moulded
- sio2
- heated
- 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
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/22—Magnesium silicates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/24—Alkaline-earth metal silicates
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A calcium silicate hydrate is obtained by reacting an aqueous dispersion of pulverized, unset, portland cement (or cementitious substance, e.g. blast furnace slag or fuel ash having a lime to silica ratio similar to portland cement) with a solution of an alkali metal silicate or a silica sol with continuous agitation under conditions such that the final and maximum temperature is between 40 DEG and 100 DEG C., preferably 55 DEG C., and then filtering. Sodium or potassium silicate may be used. When the calcium sulphate content of the cement is low, calcium sulphate in an amount of at least 3,5% by weight of the cement is dissolved in the water in which the reaction occurs. The proportions of lime (CaO) and total silica (SiO2) in the cement and in solution are such that the calcium silicate hydrate has the formula 3(CaO).2(SiO2).x(H2O), where x is at least 10. The wet filter cake then may be moulded and heated at 175 DEG C. or more under pressure in an atmosphere of saturated steam to obtain a rigid, indurated product. Finely-divided silica, e.g. ground quartz, is added to the reaction mixture before filtration in an amount so that the calcium silicate of the rigid product has the formula (CaO)5.(SiO2)6.(H2O)y, where y is variable. Non-reactive reinforcing material, e.g. asbestos fibre, mineral or glass wool, expanded clay, perlite, vermiculite, slags or sintered fuel ash, may be included in the original dispersion of cement which is reacted with the silicate solution. In one example, cement, quartz and sodium silicate are reacted in aqueous dispersion, and the product filtered, heated in steam, dried and ground for use as an insulating filler or filter aid, and in other examples fiberized amosite asbestos and chrysotile asbestos, diatomaceous earth and slaked lime are included, and the filter cake is moulded before being heated in steam to produce moulded thermal insulating pipe sections and moulded thermal insulating wallboards.ALSO:A cementitious composition is obtained by reacting an aqueous dispersion of pulverized, unset, portland cement (or cementitious substance e.g. blast furnace slag or fuel ash having a lime to silica ratio similar to portland cement) with a solution of an alkali metal silicate or a silica sol with continuous agitation under conditions such that the final and maximum temperature is between 40 DEG and 100 DEG C., preferably 55 DEG C., and then filtering. Sodium or potassium silicate may be used. When the calcium sulphate content of the cement is low calcium sulphate in an amount of at least 3,5% by weight of the cement is dissolved in the water in which the reaction occurs. The proportions of lime (CaO) and total silica (SiO2) in the cement and in solution are such that a calcium silicate hydrate is obtained having the formula 3 3(Ca0). 2(SiO2)x(H2O) where x is at least 10. The wet filter cake then may be moulded and heated at 175 DEG C. or more under pressure in an atmosphere of saturated steam to obtain a rigid, indurated product. Finely divided silica, e.g. ground quartz, is added to the reaction mixture before filtration in an amount so that the calcium silicate of the rigid product has the formula (CaO)5.(SiO2)6.(H2O)y where y is is variable. Non-reactive reinforcing material, e.g. asbestos fibre, mineral or glass wool, expanded clay, perlite, vermiculite, slags or sintered fuel ash, may be included in the original dispersion of cement which is reacted with the silicate solution. In one example cement, quartz and sodium silicate are reacted in aqueous dispersion, and the product filtered, heated in steam, dried and ground for use as an insulating filler or filter aid, and in other examples fiberized amosite asbestos and chrysotile asbestos, diatomaceous earth and slaked lime are included, and the filter cake is moulded before being heated in steam to produce moulded thermal insulating pipe sections and moulded thermal insulating wallboards.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1277459A GB891170A (en) | 1959-04-15 | 1959-04-15 | Improvements in or relating to the production of materials containing calcium silicate more especially for thermal insulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1277459A GB891170A (en) | 1959-04-15 | 1959-04-15 | Improvements in or relating to the production of materials containing calcium silicate more especially for thermal insulation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB891170A true GB891170A (en) | 1962-03-14 |
Family
ID=10010880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1277459A Expired GB891170A (en) | 1959-04-15 | 1959-04-15 | Improvements in or relating to the production of materials containing calcium silicate more especially for thermal insulation |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB891170A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50115228A (en) * | 1974-02-26 | 1975-09-09 | ||
FR2401752A1 (en) * | 1977-08-31 | 1979-03-30 | Intong Ab | PROCESS FOR THE MANUFACTURING OF HYDROTHERMICALLY HARDENED CONSTRUCTION ELEMENTS |
FR2473356A1 (en) * | 1980-01-16 | 1981-07-17 | Sipac | PROCESS FOR PREPARING A CATION EXCHANGER AND METHOD OF USING THE EXCHANGER FOR THE EXTRACTION OF LIQUID METALS |
USRE31118E (en) * | 1970-10-30 | 1983-01-04 | The Flintkote Company | Hydraulic cement and method of producing same |
EP2607329A1 (en) * | 2011-12-23 | 2013-06-26 | Sika Technology AG | Accelerator |
WO2014191272A1 (en) * | 2013-05-30 | 2014-12-04 | Sika Technology Ag | Accelerator for mineral binders |
CN115466079A (en) * | 2022-09-28 | 2022-12-13 | 中材(池州)节能新材料有限公司 | Low-density fireproof plate and preparation method thereof |
CN117585976A (en) * | 2023-12-06 | 2024-02-23 | 浙江阿斯克建材科技股份有限公司 | Preparation method of composite nano-pore calcium silicate heat insulation material |
-
1959
- 1959-04-15 GB GB1277459A patent/GB891170A/en not_active Expired
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE31118E (en) * | 1970-10-30 | 1983-01-04 | The Flintkote Company | Hydraulic cement and method of producing same |
JPS50115228A (en) * | 1974-02-26 | 1975-09-09 | ||
JPS5416534B2 (en) * | 1974-02-26 | 1979-06-22 | ||
FR2401752A1 (en) * | 1977-08-31 | 1979-03-30 | Intong Ab | PROCESS FOR THE MANUFACTURING OF HYDROTHERMICALLY HARDENED CONSTRUCTION ELEMENTS |
FR2473356A1 (en) * | 1980-01-16 | 1981-07-17 | Sipac | PROCESS FOR PREPARING A CATION EXCHANGER AND METHOD OF USING THE EXCHANGER FOR THE EXTRACTION OF LIQUID METALS |
US4495080A (en) * | 1980-01-16 | 1985-01-22 | Societe Internationale De Pulicite Et D'agences Commerciales, Enabrege: "Sipac" | Method for preparing a cation exchanger |
EP2607329A1 (en) * | 2011-12-23 | 2013-06-26 | Sika Technology AG | Accelerator |
WO2013093034A1 (en) * | 2011-12-23 | 2013-06-27 | Sika Technology Ag | Accelerator |
WO2014191272A1 (en) * | 2013-05-30 | 2014-12-04 | Sika Technology Ag | Accelerator for mineral binders |
CN105246828A (en) * | 2013-05-30 | 2016-01-13 | Sika技术股份公司 | Accelerator for mineral binders |
RU2670230C2 (en) * | 2013-05-30 | 2018-10-19 | Сикэ Текнолоджи Аг | Accelerator for mineral benders |
EP3553025A1 (en) * | 2013-05-30 | 2019-10-16 | Sika Technology Ag | Accelerator for mineral binder |
US10759716B2 (en) | 2013-05-30 | 2020-09-01 | Sika Technology Ag | Accelerator for mineral binders |
CN105246828B (en) * | 2013-05-30 | 2021-08-17 | Sika技术股份公司 | Accelerator for mineral binders |
CN115466079A (en) * | 2022-09-28 | 2022-12-13 | 中材(池州)节能新材料有限公司 | Low-density fireproof plate and preparation method thereof |
CN115466079B (en) * | 2022-09-28 | 2023-09-05 | 中材(池州)节能新材料有限公司 | Low-density fireproof plate and preparation method thereof |
CN117585976A (en) * | 2023-12-06 | 2024-02-23 | 浙江阿斯克建材科技股份有限公司 | Preparation method of composite nano-pore calcium silicate heat insulation material |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Liu et al. | An overview on the reuse of waste glasses in alkali-activated materials | |
US4193958A (en) | Process for preparing calcium silicate shaped product | |
CN105016636B (en) | A kind of gypsum slag cement insulation board and its preparation technology | |
GB891170A (en) | Improvements in or relating to the production of materials containing calcium silicate more especially for thermal insulation | |
GB1124387A (en) | Improvements relating to the manufacture of calcium silicate hydrate products | |
US3419495A (en) | Expanded silica insulation material | |
US4298561A (en) | Process for preparing calcium silicate shaped product | |
Van Aardt et al. | Reaction of Ca (OH) 2 and of Ca (OH) 2+ CaSO4. 2H2O at various temperatures with feldspars in aggregates used for concrete making | |
JPH0525828B2 (en) | ||
JP3908292B2 (en) | Method for producing asbestos material sintered body | |
US3926653A (en) | Method of building and maintaining slurry consistency | |
JPS5925745B2 (en) | Manufacturing method for lightweight materials | |
JPS62115B2 (en) | ||
KR101607394B1 (en) | Geopolymer based on blast furnace slag using ash of circulating fluidized bed boiler and method for manufacturing thereof | |
KR102103471B1 (en) | Noncement Concrete Based on Industrial By-products | |
KR100566948B1 (en) | Recycling method for waste concrete | |
GB1521019A (en) | Process for the production of a hydraulic mortar or concrete | |
CN113620659A (en) | Method for preparing non-autoclaved hydrophobic fiber reinforced calcium silicate board by utilizing fly ash | |
KHAN et al. | Building materials | |
KR810000338B1 (en) | Process of producing fiber-reinforced hardened body of gypsum system | |
US2509315A (en) | Lightweight firebrick and process of producing the same | |
Abdullah et al. | Physico-Chemical and Mechanical Properties of Geopolymer Materials | |
JPS6149264B2 (en) | ||
GB436105A (en) | Improvements in the manufacture of light concrete | |
Malolepszy et al. | Microcalorimetric studies of slag alkaline binders |