CN1156702A - Glass fibre reinforced light cement slab using expansive vermiculite as light aggregate and its producing method - Google Patents
Glass fibre reinforced light cement slab using expansive vermiculite as light aggregate and its producing method Download PDFInfo
- Publication number
- CN1156702A CN1156702A CN 96100783 CN96100783A CN1156702A CN 1156702 A CN1156702 A CN 1156702A CN 96100783 CN96100783 CN 96100783 CN 96100783 A CN96100783 A CN 96100783A CN 1156702 A CN1156702 A CN 1156702A
- Authority
- CN
- China
- Prior art keywords
- expanded vermiculite
- cement
- light
- glass fibre
- water
- 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.)
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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
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- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/008—Flocking or deflocking agents
- C04B2103/0081—Deflocking agents
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A glass fibre reinforced light cement slab using expanded vermiculite as light aggregate is made up through mixing dried expanded vermiculite with water-soluble adhesive, stirring with cement slurry, going through extrusion pump, spraying by spray gun, mixing the atomized slurry from spray gun with short fibres from spray gun of fibres, and deposition on surface of shuttering, and features high bending and impact strength and low cost.
Description
The present invention relates to a kind of glass fibre that is used on the novel building engineering and strengthen light weight cement plate, particularly is that the glass fibre of light skeletal strengthens light weight cement plate and method for making with the expanded vermiculite, belongs to the cement products field.
Generally in gunite and give the glass fibre that mixes manufactured and strengthen in the light weight cement plate, adding perlite is main light skeletal, stop up easily in process of production and laminated segregation, and the perlite light skeletal is that random vitreous state, intensity own are low, the interface binding intensity of light skeletal and base material (cement) is low, it is not high that product strength is carried, use be restricted, cracky in transportation and the construction process, the patent application 90103142.9 that the applicant has proposed just has this situation.
The weak point that the application 90103142.9 that the objective of the invention is to have proposed at the applicant exists at present, promptly because the cohesive strength at perlite light skeletal and base material (cement) interface is low, the intensity of perlite itself is also low, make the product strength of making on the low side, breakage rate height in transportation and the construction process, adopt the sheet light skeletal, it is the counter-bending and resistance to impact shock that layered distribution can improve goods in goods, this is one of purpose of the present invention, and another object of the present invention is to stop up and the laminated segregation problem for the equipment that solves in the moulding process.
For achieving the above object, technical scheme of the present invention is that the employing expanded vermiculite is a light skeletal, earlier with exsiccant expanded vermiculite and water-soluble binder mix, allow binding agent equably coated in the surface of aggregate, again the light skeletal of this mix binding agent is put in the slip still and mixed, this method can solve light skeletal because of smooth surface densification and the low problem of cement matrix cohesive strength, the expanded vermiculite surface is stained with binding agent, during with the grout mix, resin is activated and cement interpenetrates, improved the cohesive strength of aggregate and grout, binding agent in the light skeletal micropore also permeates in grout simultaneously, after the hardening of cement, base material (cement) intensity around the aggregate improves, and is the echelon shape to aggregate direction strength increase; Be that sheet structure is layered distribution in sheet material because of sheet light skeletal expanded vermiculite again, similar in appearance to fiber reinforced material, so can improve the intensity of sheet material, in addition owing to give absorption binding agent earlier around the aggregate, binding agent is conjunctiva in the aggregate micropore, can avoid grout to permeate in the aggregate micropore and strengthens the problem of aggregate unit weight; Because aggregate has adsorbed binding agent, and improve viscosity in addition, can avoid the light skeletal stratified shortcoming that in slip, float, and improved the workability and the flowability of slip, be difficult for the obstruction splashing device.
Below in conjunction with process flow sheet the concrete scheme of the present invention is described in detail:
1. proportioning
Cement 100 (weight part)
Expanded vermiculite 15～30
Water-soluble binder 0.3～1.5
Alkali resistant glass fiber 2～7
Retardant 0.1～0.05
Water reducer 0.2～0.6
Water 60～90
2. starting material requirement
(1) cement, label is higher than 325, available Portland cement, high-alumina cement, aluminosulfate cement or ferro-aluminate cement.
(2) alkali resistant glass fiber meets JC/J572～94 (alkali resistant glass fibre roving) standard.
(3) expanded vermiculite meets the JC441-91 standard
(4) tap water, inclusion-free and clay.
(5) water reducer: wooden calcium sulfonate
(6) retardant: citric acid
(7) water-soluble binder, available EVC emulsion, acrylic resin, polyvinyl alcohol etc.
3. prepare burden and manufacturing process
(1) take by weighing admixture by said ratio and water mixes, add stir in the cement standby;
(2) take by weighing water-soluble binder by proportioning and be dissolved in water, take by weighing the exsiccant expanded vermiculite and add to mix in the water-soluble binder solution and add evenly;
(3) with mixing in (2) addings (1), deliver to squeegee pump, deliver to spray gun, behind airflow atomizing, spray through extruding; Dried alkali resistant glass fiber cuts through cutting machine simultaneously, aloft mixes with the slip of atomizing through the fiber spray gun ejection, and jet deposition is to die surface, and is floating through roll extrusion, maintenance, and the demoulding is dispatched from the factory.
Advantage of the present invention and effect are as follows:
The present invention is at application number 90103142.9, name is called on the light-fibre glass reinforced cement slab basis by changing a kind of product innovation and the novel process that light skeletal kind and treatment process and admixture mode are invented, the high strength that had both kept original general GRC plate, shock resistance, water-fast, advantage such as do not fire and be the easy processing of the light grc board of light skeletal with the pearlstone, unit weight is low, the advantage of easy installation, is better than prior art in following several respects again.
(1) because expanded vermiculite is a sheet structure, be layered distribution in goods, its sheet plane parallel is equivalent to strongthener in stencil plane, and the counter-bending and resistance to impact shock of goods is improved, and also makes plate surface bright and clean simultaneously.
(2) light skeletal promptly mixes with water soluble resin solution before not adding cement slurry, and the light skeletal surface adsorption has the water soluble resin layer, the viscosity height, and after puddling with cement slurry, light skeletal is difficult for come-up from slip and causes laminated segregation again.
(3) because expanded vermiculite light skeletal queueing discipline in slip, better than random pearlstone workability, be easy to processing, overcome the technical barrier that slip in the old technology course of processing easily stops up splashing device.
(4) sheet material (10 * 1200 * 2400) mm of same area is the sheet material of light skeletal with the pearlstone, frangibility during flat lifting, breakage rate is big in transportation and the construction, and frangibility not when the sheet material made from the present invention, flat lifting, breakage rate is low in transportation, the construction, and comprehensive cost reduces by 3～5%.
Following subordinate list 1 is the embodiment of the invention, enumerate 3 examples altogether, NO3 is an aglite for replacing expanded vermiculite with garrulous mica, with the sheet material made from sampling technology, its performance is poor slightly, but also can implement, with the expanded vermiculite is the sheet material of light skeletal system, better performances, the counter-bending 9.2～10.10MPa that reaches of its wet strength is if dry tenacity can be higher; Compare with itself and the S-GRC plate performance that with the perlite is light skeletal in subordinate list 2, counter-bending all higher with resistance to impact shock, this has just widened the use range of sheet material, has also reduced its breakage rate.
Accompanying drawing 1 is a process flow sheet of the present invention.
Table 1 embodiment of the invention
Table 2 the present invention be the S-GRC plate comparison sheet of light skeletal with the pearlstone
| Kind | Resistance to impact shock | Bending strength | Unit weight |
| S-GRC plate (dry state) | ??10kg/cm 2 | ????9MPa | ≤1.1g/cm 3 |
| Plate of the present invention (dry state) | ??14kg/cm 2 | ??10.5MPa | ≤1.20g/cm 3 |
Claims (6)
1. one kind is the glass fibre enhancing light weight cement plate of light skeletal with the expanded vermiculite, and its component comprises low alkalinity cement, light skeletal, and alkali resistant glass fiber is characterized in that with the expanded vermiculite being light skeletal, its set of dispense is such as following:
Cement 100 (weight fraction)
Expanded vermiculite 15～30
Water-soluble binder 0.3～1.5
Alkali resistant glass fiber 2～7
Water reducer 0.2～0.6
Retardant 0.1～0.05
Water 60～90
2. according to claim 1 is the glass fibre enhancing light weight cement plate of light skeletal with the expanded vermiculite, it is characterized in that described cement is Portland cement, high-alumina cement, aluminosulfate cement or ferro-aluminate cement.
3. according to claim 1 is the glass fibre enhancing light weight cement plate of light skeletal with the expanded vermiculite, it is characterized in that described water-soluble binder is EVC emulsion, acrylic resin or polyvinyl alcohol.
4. according to claim 1 is the glass fibre enhancing light weight cement plate of light skeletal with the expanded vermiculite, it is characterized in that described water reducer is a wooden calcium sulfonate.
5. according to claim 1 is the glass fibre enhancing light weight cement plate of light skeletal with the expanded vermiculite, it is characterized in that described retardant is a citric acid.
6. one kind is the method for making of the glass fibre enhancing light weight cement plate of light skeletal with the expanded vermiculite, it is characterized in that the expanded vermiculite drying is handled, by the proportioning weighing, water-soluble binder is dissolved in the water, mixes, pour this solution in expanded vermiculite mix, add in the grout and mix, deliver to spray gun through squeegee pump and aloft mix through the staple fibre of airflow atomizing ejection with the fiber spray gun ejection, jet deposition is to die surface, through roll extrusion, the floating sheet material that is shaped to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96100783A CN1051065C (en) | 1996-02-08 | 1996-02-08 | Glass fibre reinforced light cement slab using expansive vermiculite as light aggregate and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96100783A CN1051065C (en) | 1996-02-08 | 1996-02-08 | Glass fibre reinforced light cement slab using expansive vermiculite as light aggregate and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1156702A true CN1156702A (en) | 1997-08-13 |
| CN1051065C CN1051065C (en) | 2000-04-05 |
Family
ID=5116737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96100783A Expired - Lifetime CN1051065C (en) | 1996-02-08 | 1996-02-08 | Glass fibre reinforced light cement slab using expansive vermiculite as light aggregate and its producing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1051065C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357217C (en) * | 2000-08-08 | 2007-12-26 | 北新建材(集团)有限公司 | Vacuum extrusion process and equipment of fiber reinforced cement board |
| CN102030505A (en) * | 2010-10-27 | 2011-04-27 | 朱奎 | Anti-magnetic cement slurry |
| CN104692748A (en) * | 2015-02-15 | 2015-06-10 | 深圳市华科德新材料有限公司 | Lightweight composite thermal insulation material |
| CN106316265A (en) * | 2016-08-26 | 2017-01-11 | 北海金匠水泥制品有限责任公司 | Cement wallboard |
| CN114230299A (en) * | 2021-12-30 | 2022-03-25 | 湖北工业大学 | Full-solid-waste high-performance light material and preparation method and application thereof |
| CN116730638A (en) * | 2023-06-15 | 2023-09-12 | 济南大学 | Alkali-resistant iron-rich sulphoaluminate cement composite cementing material and preparation process thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323977C (en) * | 2006-02-15 | 2007-07-04 | 公安部四川消防研究所 | Multifunctional light inorgaic fire-proof fiber protective layer material |
-
1996
- 1996-02-08 CN CN96100783A patent/CN1051065C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357217C (en) * | 2000-08-08 | 2007-12-26 | 北新建材(集团)有限公司 | Vacuum extrusion process and equipment of fiber reinforced cement board |
| CN102030505A (en) * | 2010-10-27 | 2011-04-27 | 朱奎 | Anti-magnetic cement slurry |
| CN104692748A (en) * | 2015-02-15 | 2015-06-10 | 深圳市华科德新材料有限公司 | Lightweight composite thermal insulation material |
| CN106316265A (en) * | 2016-08-26 | 2017-01-11 | 北海金匠水泥制品有限责任公司 | Cement wallboard |
| CN114230299A (en) * | 2021-12-30 | 2022-03-25 | 湖北工业大学 | Full-solid-waste high-performance light material and preparation method and application thereof |
| CN116730638A (en) * | 2023-06-15 | 2023-09-12 | 济南大学 | Alkali-resistant iron-rich sulphoaluminate cement composite cementing material and preparation process thereof |
| CN116730638B (en) * | 2023-06-15 | 2023-12-29 | 济南大学 | Alkali-resistant iron-rich sulphoaluminate cement composite cementing material and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1051065C (en) | 2000-04-05 |
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Addressee: Ding Yanling Document name: Notification of Expiration of Patent Right Duration |