CN111730716A - Production process of glass fiber reinforced concrete GRC - Google Patents
Production process of glass fiber reinforced concrete GRC Download PDFInfo
- Publication number
- CN111730716A CN111730716A CN202010408442.5A CN202010408442A CN111730716A CN 111730716 A CN111730716 A CN 111730716A CN 202010408442 A CN202010408442 A CN 202010408442A CN 111730716 A CN111730716 A CN 111730716A
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- grc
- glass fiber
- spraying
- reinforced concrete
- production process
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/42—Glass
-
- 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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
- C04B2111/00155—Sprayable, i.e. concrete-like, materials able to be shaped by spraying instead of by casting, e.g. gunite
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a production process of glass fiber reinforced concrete GRC, which comprises the following steps of die arrangement, die combination, cleaning and checking whether the size meets the precision standard, whether an inner die deforms or not, and coating demolding oil on the contact surface of the die and the GRC to ensure that the demolding oil is uniformly distributed; spraying GRC, proportioning the weight of a GRC wire board, uniformly mixing the used cement mortar when the GRC wire board is manufactured, spraying a glass fiber spray gun by using air pressure, wherein the spraying thickness of each layer is about 4-5mm, and uniformly mixing the cement mortar with the sprayed cement mortar, the spraying thickness of each layer is 4-5mm, and each layer is rolled by using a roller to expel bubbles; according to the production process of the glass fiber reinforced concrete GRC, disclosed by the invention, the GRC plate can be accurately manufactured, the GRC quality is excellent and the error rate is reduced through strict control of errors and plate proportion, meanwhile, the manufacturing cost is simple, the process operation is not complex, and the production process can be popularized in a large range.
Description
Technical Field
The invention belongs to the technical field of GRC processing, and particularly relates to a production process of glass fiber reinforced concrete GRC.
Background
GRC is to regard alkali-resisting glass fiber as the reinforcement, sulphoaluminate low alkalinity cement is the cementing material and mix suitable aggregate to form the substrate, through spraying, founding the mould to pour, extrude, flow pulp etc. production technology and make light, high strength and high toughness, multi-functional novel inorganic composite material, utilize GRC material to develop light inner partition wall board, heated board, external wall panel, exterior decorative series products, net rack roof panel, air duct, granary, rigid waterproof roofing, etc. dozens of products have already been applied to the fields such as the building engineering, civil engineering, farming and fish farming and animal husbandry extensively;
the development of the GRC material and the product thereof not only makes outstanding contributions to the reform of Chinese wall materials, building energy conservation and decoration and fitment of buildings, but also makes great progress in the aspects of basic theoretical research, raw material varieties and performances, product development, production process level, product quality and the like. Because GRC material has the characteristics of relatively ideal physical and mechanical properties, easy molding and manufacturing of products, fast product updating, large market capacity, strong adaptability and the like, the GRC industry is full of vitality and is stepping into the sunward industry, and therefore, a production process of glass fiber reinforced concrete GRC is provided.
Disclosure of Invention
The invention mainly aims to provide a production process of glass fiber reinforced concrete GRC, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a production process of glass fiber reinforced concrete GRC comprises the following steps:
step one, arranging the molds, namely combining the molds, cleaning and checking whether the dimension meets the precision standard or not, whether the molds in the enclosure deform or not, and coating demolding oil on the contact surface of the molds and the GRC to ensure that the demolding oil is uniformly distributed;
step two, GRC spraying, wherein the weight of a GRC wire board is proportioned, when the GRC wire board is manufactured, the used cement mortar needs to be uniformly mixed, a glass fiber spray gun is sprayed by utilizing air pressure and can be uniformly mixed, the spraying thickness of each layer is about 4-5mm and is uniformly mixed with the sprayed cement mortar, the spraying thickness of each layer is 4-5mm, each layer is rolled by a roller to expel bubbles, the bubbles are compacted to increase the density, and the spraying mode is operated in a transverse and longitudinal interactive spraying mode;
measuring the glass fiber ejection amount once in the morning and afternoon;
measuring all materials except the glass fiber before mixing, weighing all liquid additives, pouring the weighed liquid additives into water, uniformly stirring, and adding other materials for mixing;
step five, after the mortar layer is sprayed, the spraying operation of the glass fiber reinforced cement is started, and in the production process of one plate, if the machine is interrupted due to failure, the spraying operation must be continued before the initial setting is started, otherwise, the spraying operation should be scrapped;
step six: demolding and maintaining, wherein during demolding, the GRC plate needs to have uniform supporting points, and after demolding, the GRC plate needs to immediately enter a maintenance area for continuous proper maintenance;
step seven: surface treatment and repair, wherein the GRC member is damaged and peeled off during demoulding, or bubbles and honeycombs with the diameter of more than 2mm at common parts are repaired and leveled, and cement mortar used for repairing needs to be prepared by the same cement mortar as the GRC member;
step eight, storing and carrying, wherein the product is stored in a horizontal mode and is placed vertically, a proper support is needed to prevent dumping, a storage place is leveled without water accumulation, the ground is needed to have enough bearing capacity, any uneven settlement is avoided during storage, the surface of the line board cannot be damaged or polluted during carrying, and extra pressure is avoided.
Preferably, the allowance error of the corner of the die is-1 mm-2mm, and the allowance error of the diagonal length is-3 mm-0 mm.
Preferably, the air pressure maintains 5-7Kg/cm 2.
Preferably, the content of the glass fiber spraying amount in the third step is 5 percent by weight, the allowable error is +1.0 percent and-0.5 percent, namely, the content is between 4.5 and 6.0 percent.
Preferably, when the weight ratio of the GRC wire plate is 5%, the glass fiber content is 5%, the water cement ratio is 0.3-0.35, and the sand-mud ratio is 1: 1.
compared with the prior art, the invention has the following beneficial effects: this glass fiber reinforced concrete GRC's production technology, according to the difference of GRC material thickness and surface treatment mode, can reach good sound insulation and inhale the sound effect, and its quality is light in addition, and intensity is high, it is stronger to resist earthquake impact capacity for other materials, the time limit for a project is short, it is convenient to maintain, easy change, GRC can the bold production cut apart, the simple and convenient various of installation method, and all be the mill prefabrication, be favorable to the site operation, shorten the time limit for a project greatly, through the strict control of error and panel ratio, make GRC quality excellent, reduce the error rate, the cost of manufacture is simple simultaneously, the technology operation is uncomplicated, can promote on a large scale.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The production of the glass fiber reinforced concrete GRC comprises the following steps of firstly, die arrangement:
1, combining the moulds, cleaning and checking whether the size meets the precision standard or not, and whether the mould in the enclosure deforms or not.
2. And (3) coating demolding oil on the contact surface of the mold and the GRC to ensure that the demolding oil is uniformly distributed.
3. The mold tolerances are as follows:
(II) spraying GRC:
the weight ratio of the GRC wire plate is as follows: the glass fiber content is 5%, the water-cement ratio (W/C) is 0.3-0.35, the sand-mud ratio is 1: 1. 2. when the plate is manufactured, the used cement mortar is uniformly mixed, the glass fiber spray gun is sprayed by using air pressure (maintaining the pressure of 5-7Kg/cm 2) to uniformly mix, the spraying thickness of each layer is about 4-5mm and is uniformly mixed with the sprayed cement mortar, the spraying thickness of each layer is 4-5mm, each layer is rolled by using a roller to expel bubbles, the density is increased by compaction, and the spraying mode is operated in a transverse and longitudinal interactive spraying mode.
3. The amount of the glass fiber sprayed is generally measured once in the morning and afternoon, the content is 5% by weight, and the allowable error is + 1.0% and-0.5%, i.e. the content should be 4.5-6.0%.
4. All materials, except for glass fibers, should be carefully measured prior to blending.
5. All liquid additives should be carefully weighed and poured into water, and after being uniformly stirred, other materials are added for mixing.
6. After the mortar layer is sprayed, the spraying operation of the glass fiber reinforced cement is started.
7. In the production of a panel, if the machine is interrupted by a failure, it must be continued before the initial set begins, or else it must be discarded. The initial setting starting time is related to the cement proportion and the types of the additives.
8. Before the initial setting, the fine modification or the full compaction is required to be completed, so that the bubbles in the glass fiber reinforced cement can overflow, and the continuous different parts and the connection part of the glass fiber reinforced cement sheet and the pre-buried iron member can be rapidly completed, thereby avoiding the weakening of the whole connectivity.
The average thickness of the GRC sheet should be checked at 2 points per 0.5M ^2 area according to the P.C.I specification for pin insertion to know the average thickness.
10. The resistance tensile strength of the pre-embedded iron piece after being bonded after 28 days needs less than hundred kilograms
And (III) demolding and curing:
1. during demolding, GRC plate needs to have homogeneous fulcrum, and after demolding, GRC plate needs to enter the maintaining area for maintaining proper maintenance.
2. In order to prevent the GRC plate from being damaged due to insufficient strength during demoulding, a good mould dismounting mode is required in the design of a mould. In order to prevent the component from being subjected to unnecessary external force, a proper hoisting tool is used for operation so as to prevent the product from being damaged.
(IV) surface treatment and repair:
1. the GRC member is damaged and peeled off when demolded, or the general portion exceeds 2mm diameter bubbles, honeycombs, etc. should be repaired and smoothed.
2. The cement mortar used for repairing needs to be prepared by the same proportion as that of the GRC member.
(V) storage and transportation:
1. the products are generally stored flat, standing, and with appropriate support to prevent them from tipping.
2. The storage site should be leveled without water accumulation, the ground should have sufficient bearing capacity, and there should not be any uneven settlement during storage.
3. When carrying, the surface of the wire board can not be damaged or polluted, and the wire board is prevented from bearing extra pressure.
Control of two qualities
Cloth polymerization: the contractor must issue tests and delivery certificates, and the design organization and the owner must perform long-term and irregular inspections.
(II) the test specimens must be tested at 28 days old according to CNS, BSI or ASTM test specifications.
Physical properties of (III) GRC:
three-component transportation plan
Carrying and assembling: the transportation of the project is required to match the requirement of on-site hoisting, the required components are transported to the construction site before hoisting, and the components are unloaded from the construction site
And (5) parking the site, and transporting the site to a lifting point in a small transportation mode after finishing the repair. In principle, the components required for hoisting are supplied according to the daily demand.
(II) packaging: and (5) in order to prevent the transportation damage after the maintenance of the component is finished, an anti-collision pad is additionally arranged at a position where the component is fixed and is easy to collide with the component so as to protect the material.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A production process of glass fiber reinforced concrete GRC is characterized by comprising the following steps:
step one, arranging the molds, namely combining the molds, cleaning and checking whether the dimension meets the precision standard or not, whether the molds in the enclosure deform or not, and coating demolding oil on the contact surface of the molds and the GRC to ensure that the demolding oil is uniformly distributed;
step two, GRC spraying, wherein the weight of a GRC wire board is proportioned, when the GRC wire board is manufactured, the used cement mortar needs to be uniformly mixed, a glass fiber spray gun is sprayed by utilizing air pressure and can be uniformly mixed, the spraying thickness of each layer is about 4-5mm and is uniformly mixed with the sprayed cement mortar, the spraying thickness of each layer is 4-5mm, each layer is rolled by a roller to expel bubbles, the bubbles are compacted to increase the density, and the spraying mode is operated in a transverse and longitudinal interactive spraying mode;
measuring the glass fiber ejection amount once in the morning and afternoon;
measuring all materials except the glass fiber before mixing, weighing all liquid additives, pouring the weighed liquid additives into water, uniformly stirring, and adding other materials for mixing;
step five, after the mortar layer is sprayed, the spraying operation of the glass fiber reinforced cement is started, and in the production process of one plate, if the machine is interrupted due to failure, the spraying operation must be continued before the initial setting is started, otherwise, the spraying operation should be scrapped;
step six: demolding and maintaining, wherein during demolding, the GRC plate needs to have uniform supporting points, and after demolding, the GRC plate needs to immediately enter a maintenance area for continuous proper maintenance;
step seven: surface treatment and repair, wherein the GRC member is damaged and peeled off during demoulding, or bubbles and honeycombs with the diameter of more than 2mm at common parts are repaired and leveled, and cement mortar used for repairing needs to be prepared by the same cement mortar as the GRC member;
step eight, storing and carrying, wherein the product is stored in a horizontal mode and is placed vertically, a proper support is needed to prevent dumping, a storage place is leveled without water accumulation, the ground is needed to have enough bearing capacity, any uneven settlement is avoided during storage, the surface of the line board cannot be damaged or polluted during carrying, and extra pressure is avoided.
2. A process of producing a glass fibre reinforced concrete GRC according to claim 1, characterised in that: the allowable error of the corner of the die is-1 mm-2mm, and the allowable error of the length of the diagonal is-3 mm-0 mm.
3. A process of producing a glass fibre reinforced concrete GRC according to claim 1, characterised in that: the air pressure maintains 5-7Kg/cm 2.
4. A process of producing a glass fibre reinforced concrete GRC according to claim 1, characterised in that: the content of the glass fiber ejection amount in the third step is 5 percent by weight, the allowable error is plus 1.0 percent and minus 0.5 percent, namely the content is between 4.5 and 6.0 percent.
5. A process of producing a glass fibre reinforced concrete GRC according to claim 1, characterised in that: when the GRC wire board is prepared according to the weight ratio, the glass fiber content is 5%, the water-cement ratio is 0.3-0.35, and the sand-mud ratio is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408442.5A CN111730716A (en) | 2020-05-14 | 2020-05-14 | Production process of glass fiber reinforced concrete GRC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408442.5A CN111730716A (en) | 2020-05-14 | 2020-05-14 | Production process of glass fiber reinforced concrete GRC |
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| CN111730716A true CN111730716A (en) | 2020-10-02 |
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| CN202010408442.5A Pending CN111730716A (en) | 2020-05-14 | 2020-05-14 | Production process of glass fiber reinforced concrete GRC |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720788A (en) * | 2020-12-28 | 2021-04-30 | 恒豪国际贸易（上海）有限公司 | Manufacturing process of UHPC (ultra high performance polycarbonate) component |
| CN113211599A (en) * | 2021-05-27 | 2021-08-06 | 金华求真装饰工程有限公司 | Heat-insulating light GRC line, production process and production equipment |
| CN113733299A (en) * | 2021-08-18 | 2021-12-03 | 河北宏京新型建材有限公司 | Production process of glass fiber reinforced concrete GRC |
| CN113979696A (en) * | 2021-11-24 | 2022-01-28 | 镇江建科建设科技有限公司 | Formula and production process of glass fiber reinforced precast concrete member |
| CN114274309A (en) * | 2021-12-31 | 2022-04-05 | 贵州瑞气升腾实业有限公司 | GRC member injection manufacturing process |
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| FR1062350A (en) * | 1952-09-01 | 1954-04-21 | Products based on glass fibers incorporated in hydraulic binders, cements and various aggregates. processes for obtaining said products and high-throughput machines intended for their manufacture | |
| CN101284722A (en) * | 2007-09-29 | 2008-10-15 | 上海盈创装饰设计工程有限公司 | Fiberglas reinforced plaster tablet and method for making the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720788A (en) * | 2020-12-28 | 2021-04-30 | 恒豪国际贸易（上海）有限公司 | Manufacturing process of UHPC (ultra high performance polycarbonate) component |
| CN113211599A (en) * | 2021-05-27 | 2021-08-06 | 金华求真装饰工程有限公司 | Heat-insulating light GRC line, production process and production equipment |
| CN113733299A (en) * | 2021-08-18 | 2021-12-03 | 河北宏京新型建材有限公司 | Production process of glass fiber reinforced concrete GRC |
| CN113979696A (en) * | 2021-11-24 | 2022-01-28 | 镇江建科建设科技有限公司 | Formula and production process of glass fiber reinforced precast concrete member |
| CN114274309A (en) * | 2021-12-31 | 2022-04-05 | 贵州瑞气升腾实业有限公司 | GRC member injection manufacturing process |
| CN114274309B (en) * | 2021-12-31 | 2024-02-09 | 贵州瑞气升腾实业有限公司 | GRC component injection manufacturing process |
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