CN102909783A - Production process of building envelope products - Google Patents
Production process of building envelope products Download PDFInfo
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- CN102909783A CN102909783A CN201210421963XA CN201210421963A CN102909783A CN 102909783 A CN102909783 A CN 102909783A CN 201210421963X A CN201210421963X A CN 201210421963XA CN 201210421963 A CN201210421963 A CN 201210421963A CN 102909783 A CN102909783 A CN 102909783A
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Abstract
The invention discloses a production process of building envelope products and belongs to the field of civil engineering. Light calcined magnesia power or mixture of light calcined magnesia power and quicklime is proportionally mixed with mineral admixtures such as granulated blast-furnace slag, coal ash, silica fume, red mud tailing powder and slag to obtain cementing material, the cementing material is mixed with aggregate and water into mixture used for producing building envelope material, and the building envelope material is finally hardened under CO2 environment into building envelope products such as building blocks, plates and tiles by means of mixing, forming, precuring and the like. The production process is low in production energy consumption, CO2 emitted from industrial waste residue and in industrial production is effectively utilized, and the building envelope products are new energy-saving environment-friendly products.
Description
Technical field
The invention belongs to field of civil engineering, specifically, refer to a kind of production technology of producing the building enclosure material product.
Background technology
China at present a large amount of building enclosure materials (comprising brick and tile, building block, sheet material etc.) that use mostly be with cement as Binder Materials, adds and variously gathers materials and add the water stirring, make through techniques such as moulding, cutting, maintenances.Wherein used Binder Materials cement needs high-temperature calcination in process of production, and calcining heat is 1450 ℃.Light-magnesite powder and quick lime are respectively the Binder Materials that is made by magnesia (a kind of mineral take magnesium carbonate as main component) and limestone calcination, its calcining heat is far below cement, be respectively 750 ℃ and 900 ℃, so its energy consumption reduces greatly than cement.China's magnesite resource is abundant, and reserves account for 1/4 of world's gross reserves, but owing to himself character, its range of application is also very limited.Seek magnesite and have the new purposes of industrial application value, more efficiently, high added value utilize magnesite resource, for promoting that China's magnesium products industrial expansion is significant.
Generate magnesium hydroxide (MgO+H after the light-magnesite powder aquation
2O==Mg (OH)
2), the carbonization of magnesium hydroxide process is (with CO
2Reaction) can generate the carbonate (Mg (OH) of magnesium after
2+ CO
2+ H
2O==MgCO
33H
2O).MgCO
33H
2O is called again hydromagnesite, and test shows that its intensity can reach even be higher than the intensity of the hydrated calcium silicate (C-S-H) of hydrated cementitious generation.Calcium oxide also has and the similar character of light-magnesite powder, generates hard lime stone (CaCO after its carbonization
3).
The mineral admixtures such as flyash, granulated blast-furnace slag, silicon ash, slag are joined in the mixture of light-magnesite powder or light-magnesite powder and calcium oxide; these mineral admixtures can play the effect of similar " nucleus effect " in light-magnesite powder or calcium oxide hydration process; can increase gel and generate quantity, promote gel to assemble to " nucleus ".Flyash and slag in these mineral admixtures belong to industrial residue, and at present the utilization rate of China's industrial residue only is 50%, and the trade waste recycling is that national policy is advocated and supported.Therefore, utilize industrial residue to produce the recycling approach that the building enclosure material can be widened industrial residue, be of value to environmental protection.
China is second-biggest-in-the-world CO
2Discharging state, year discharging CO
2Amount accounts for nearly 30% of world's total release.On Copenhagen Climate Conference in December, 2009, the Chinese government has been permitted to the year two thousand twenty per GDP to reduce discharging 40～45% promise.Therefore, China is bearing very heavy CO
2Emission reduction tasks.CO with the industrial production discharging
2For the production of the building enclosure material, expand CO
2The recycling approach, be of value to environmental protection and the country sustainable development.
Adopt the mixture of light-magnesite powder or light-magnesite powder and quick lime to mix replacement cement with mineral admixtures such as granulated blast-furnace slag, flyash, silicon ashes as Binder Materials, gather materials with water and thickness and mix and stir afterwards at CO
2Harden in the environment, in order to produce the building enclosure material product, can significantly reduce the building maintenance material product energy consumption, utilize industrial residue and CO
2, not only energy-conservation but also environmental protection.
Summary of the invention
The invention provides a kind of production technology of producing the building enclosure material product.The present invention adopts the mixture of light-magnesite powder or light-magnesite powder and quick lime to mix by a certain percentage replacement cement as Binder Materials with mineral admixture, described Binder Materials is mixed matrix material as producing the building enclosure material with gathering materials, through the techniques such as stirring, moulding, precuring and finally at CO
2In the environment sclerosis make building block, sheet material, watt etc. the building enclosure material product.
The mass percent of activated magnesia should be more than 60% in the described light-magnesite powder, and the mass percent of calcium oxide should be not less than 75% in the quick lime; The mass percent of light-magnesite powder is not less than 50% in the mixture of described light-magnesite powder and quick lime.Described mineral admixture is that grain diameter is less than the artificial or natural mineral material of 100 μ m; as: granulated blast-furnace slag, flyash, silicon ash, slag, red mud mine tailing, agstone etc. satisfy the mineral admixture of particle diameter requirement, can be one or more mixtures wherein.The mass ratio of light-magnesite powder and mineral admixture, or the mass ratio of the mixture of light-magnesite powder and calcium oxide and mineral admixture is 30%～70%: 70%～30%.Described gathering materials can be adopted coarse aggregate, fine aggregate or the light-weight aggregate of stipulating in the existing concrete specification of satisfied country according to different building enclosure material products, wherein coarse aggregate is that particle diameter is greater than rubble, the cobble particle of 4.75mm, fine aggregate is the normal sands of particle diameter between 0.15mm to 4.75mm, and light-weight aggregate can adopt bulk density to be not more than 1200kg/m
3Expanded perlite, float stone, haydite etc.The percentage that described aggregate quality accounts for the matrix material quality is [70%～0%].Mixing water should adopt drinking water.
In building enclosure material product of the present invention the tension reinforcing material can be set, described tension reinforcing material can be fiber, sheet material or muscle material.Described fiber can be the chopped silk of fiber that non-directional distributes, and also can be the continuous filament of directional profile; Described fiber can adopt mineral fibres, chemical fibre or string etc., includes but not limited to carbon fiber, aramid fiber, polyester fiber, basalt fibre, glass fibre, bamboo fibre etc.; The braid of described sheet material for adopting above-mentioned fibrage to form; The muscle material can use the fiber wall with strong rib material of plastic of being made by above-mentioned fiber.
The invention provides a kind of production technology of producing the building enclosure material product, mainly may further comprise the steps:
(1) raw material mix and stir; Described raw material mix and stir and can adopt the equipment and process that has known raw material mixing now and stir.
(2) compound moulding: if adopt the chopped silk of fiber as the tension reinforcing material, then with straight forming after itself and the various raw material mixing and stirring; If the continuous filament of employing directional profile or prefabricated fibre sheet material are then successively laid at design attitude in the compound forming process as the tension reinforcing material; If adopt the muscle material as the tension reinforcing material, then should in moulding forward direction mould, put into prefabricated muscle material skeleton, and colligation be on mould;
(3) precuring;
(4) carbonized maintaining is made finished product.
Compound moulding described in the step (2) can be adopted existing known moulding process and former;
Precuring purpose described in the step (3) is to make MgO and CaO aquation to generate Mg (OH)
2And Ca (OH)
2, and tentatively have some strength.Precuring can be adopted common maintenance (20～40 ℃ of temperature, relative humidity 60～100%), (vapor (steam) temperature is higher than 176 ℃ also can to adopt atmospheric steam curing (normal pressure, vapor (steam) temperature are higher than 100 ℃) or autoclave curing, pressure 0.8～1.5MPa) is to accelerate the aquation of MgO and CaO, and the closed container that is used for precuring can adopt the known maintenance of equipments such as curing kilns, steam-cured still, still kettle;
Carbonized maintaining described in the step (4) is that pile body has the follow-up maintenance step of carrying out after some strength and the demoulding through precuring, and purpose is to make MgO and CaO aquation to generate Mg (OH)
2And Ca (OH)
2, Mg (OH)
2And Ca (OH)
2With CO
2Reaction generates MgCO
33H
2O and CaCO
3Thereby, make the pile body sclerosis make finished product.Carbonized maintaining can adopt common maintenance (20～40 ℃ of temperature, relative humidity 60～100%), atmospheric steam curing (normal pressure, vapor (steam) temperature are higher than 100 ℃) or autoclave curing, and (vapor (steam) temperature is higher than 176 ℃, pressure 0.8～1.5MPa) passes into a certain amount of CO to the closed container (curing kilns, steam-cured still, still kettle etc.) that is used for maintenance in the carbonized maintaining process
2Gas is realized carbonized maintaining, CO
2The amount of gas should be controlled at and account for CO
2With 10%～90% of air gas mixture volume.The CO that passes into
2Can adopt commercially available CO
2The CO of gas products or recycling industrial production enterprise (as: brewery, magnesia factory, cement plant etc.) discharging
2
The production technology of production building enclosure material product provided by the invention, can for the production of building block, sheet material, watt etc. the building enclosure material product.
The invention has the advantages that:
(1) the present invention utilize light-magnesite powder or light-magnesite powder and calcium oxide mixture as cement components, compare with cement, its calcining heat reduces greatly, thereby has saved energy consumption.
(2) the present invention utilizes the industrial residues such as flyash, slag to produce the building enclosure material product as mineral admixture, has effectively utilized industrial residue.
(3) the present invention can utilize the CO of other industrial enterprise's discharging
2In order to produce the building enclosure material, can reduce CO
2Discharge capacity in the atmosphere is the new product of class energy-conserving and environment-protective.
The specific embodiment
The present invention is further illustrated for the kind of the different building enclosure materials of producing below in conjunction with concrete application the present invention and embodiment.
The invention provides a kind of production technology and application thereof of producing the building enclosure material product.The present invention adopts the mixture of light-magnesite powder or light-magnesite powder and quick lime to mix by a certain percentage replacement cement as Binder Materials with mineral admixtures such as granulated blast-furnace slag, flyash, silicon ash, slag, red mud mine tailing, agstones; various the gathering materials such as described Binder Materials and sandstone mixed matrix material as producing the building enclosure material, through the techniques such as stirring, moulding, precuring and finally at CO
2In the environment sclerosis make building block, sheet material, watt etc. the building enclosure material product.
The novel gelled material that adopts among the present invention is starched test only, and process of the test and result are as follows: be prepared into clean slurry test block at CO after adopting light-magnesite powder and flyash (mass ratio is 1: 1) mixing
2Maintenance (CO in the environment
2Volume accounts for CO
2With the air gas mixture volume 20%), and cement be prepared into clean slurry test block maintenance in air ambient after flyash (mass ratio is 1: 1) mixes, the intensity in its each length of time is as shown in table 1.
Table 1 Binder Materials intensity (MPa) result contrast
The test specimen that adopts in the above-mentioned test is the cube of length of side 5cm, and curing temperature is 25 ℃, and relative humidity is 95%.From table data as seen, MgO mixes with flyash afterwards at CO
2The prolongation of the intensity curing age of maintenance under the environment improves then gradually and tends towards stability gradually, finally can reach suitable with the intensity of cement, flyash gel rubber material.
The invention provides a kind of production technology of producing the building enclosure material product, described matrix material for the production of the building enclosure material mainly is prepared from by the raw material of following component: the mixture of light-magnesite powder or light-magnesite powder and calcium oxide, mineral admixture, gather materials etc.The mass percentage content of activated magnesia should be more than 60% in the described light-magnesite powder, and the mass percentage content of calcium oxide should be not less than 75% in the quick lime; The mass percent of light-magnesite powder is not less than 50% in the mixture of described light-magnesite powder and quick lime.Described mineral admixture is that grain diameter is less than the artificial or natural mineral material of 100 μ m, as: granulated blast-furnace slag, flyash, silicon ash, slag, red mud mine tailing, agstone etc. satisfy the mineral admixture of particle diameter requirement, can be one or more mixtures wherein; The mixture of light-magnesite powder or light-magnesite powder and calcium oxide and the mass ratio of mineral admixture are (30%～70%): (70%～30%); Described gathering materials can be adopted coarse aggregate, fine aggregate or the light-weight aggregate of stipulating in the existing concrete specification of satisfied country according to different building enclosure material products, wherein coarse aggregate is that particle diameter is greater than rubble, the cobble particle of 4.75mm, fine aggregate is the normal sands of particle diameter between 0.15mm to 4.75mm, and light-weight aggregate can adopt bulk density to be not more than 1200kg/m
3Expanded perlite, float stone, haydite etc.The percentage that described aggregate quality accounts for the matrix material quality is [70%～0%].Mixing water should adopt drinking water.
The invention provides a kind of production technology of producing the building enclosure material, the tension reinforcing material can be set in the building enclosure material product, reinforcing material can be fiber, sheet material or muscle material.Described fiber can be the chopped silk of fiber that non-directional distributes, and also can be the continuous filament of directional profile; Described fiber can adopt mineral fibres, chemical fibre, string etc., includes but not limited to carbon fiber, aramid fiber, polyester fiber, basalt fibre, glass fibre, bamboo fibre etc.; The braid of described sheet material for adopting above-mentioned fibrage to form.Described muscle material can use the muscle material of being made by above-mentioned fiber.
The invention provides a kind of production technology of producing the building enclosure material product, mainly may further comprise the steps:
(1) raw material mix and stir; Described mixing and the equipment and process that stirs the existing known raw material mixing of employing and stir.Described raw material comprise light-magnesite powder or light-magnesite powder and calcium oxide mixture, mineral admixture, gather materials etc.Add entry in the process of mixing and stirring.
(2) compound moulding: if adopt the chopped silk of fiber as the tension reinforcing material, then with straight forming after itself and the various raw material mixing and stirring; If the continuous filament of employing directional profile or prefabricated fibre sheet material are then successively laid at design attitude in the compound forming process as the tension reinforcing material; If adopt the muscle material as the tension reinforcing material, then should in moulding forward direction mould, put into prefabricated muscle material skeleton, and colligation be on mould; The enforcement of concrete compound moulding can be adopted existing known moulding process and former.
(3) base substrate precuring;
(4) carbonized maintaining is made finished product.Base substrate precuring purpose described in the step (3) is to make MgO and CaO aquation to generate Mg (OH)
2And Ca (OH)
2, and tentatively have some strength.Raw material ratio and the curing condition of the precuring time of base substrate by base substrate determines that the base substrate precuring is until till the abundant aquation of MgO and CaO.The base substrate precuring can be adopted common maintenance (20～40 ℃ of temperature, relative humidity 60～100%), (vapor (steam) temperature is higher than 176 ℃ also can to adopt atmospheric steam curing (normal pressure, vapor (steam) temperature are higher than 100 ℃) or autoclave curing, pressure 0.8～1.5MPa) is to accelerate the aquation of MgO and CaO, and the closed container that is used for maintenance can adopt the known maintenance of equipments such as curing kilns, steam-cured still, still kettle;
Carbonized maintaining described in the step (4) is that pile body has the follow-up maintenance step of carrying out after some strength and the demoulding, the Mg that generates after the light-magnesite powder aquation (OH) through precuring
2The process carburizing reagent is (with CO
2Reaction) can generate the carbonate (Mg (OH) of magnesium after
2+ CO
2+ 2H
2O==MgCO
33H
2O).MgCO
33H
2O is called again hydromagnesite, and test shows that its intensity can reach even be higher than the intensity of the hydrated calcium silicate (C-S-H) of hydrated cementitious generation.Ca (OH)
2Also have with Mg (OH)
2Similarly character generates hard lime stone (CaCO after its carbonization
3).Carbonized maintaining can adopt common maintenance (20～40 ℃ of temperature, relative humidity 60～100%), atmospheric steam curing (normal pressure, vapor (steam) temperature are higher than 100 ℃) or autoclave curing, and (vapor (steam) temperature is higher than 176 ℃, passes into a certain amount of CO to the closed container (curing kilns, steam-cured still, still kettle etc.) that is used for maintenance in pressure 0.8～1.5MPa) process
2Gas is realized carbonized maintaining, CO
2The amount of gas should be controlled at and account for CO
2With 10%～90% of air gas mixture volume.The CO that passes into
2Can adopt commercially available CO
2The CO of gas products or recycling industrial production enterprise (as: brewery, magnesia factory, cement plant etc.) discharging
2
Adopt production technology provided by the invention to produce the building enclosure material product, different according to the kind of the building enclosure material product of producing, raw material ratio and production technology that it is concrete are as follows:
(1) adopt production technology provided by the invention to produce concrete segment.Can make respectively normal concrete building block and light aggregate concrete building block according to the Aggregate Type in the concrete; Compaction rate according to building block can be made solid block and building-block, and wherein building-block carbonization efficient is higher; Add an amount of blowing agent in the raw material and can make foam concrete block.Its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 100～550 parts;
Quick lime: 0～200 part;
Mineral admixture: 55～500 parts;
Coarse aggregate: 0～1500 part;
Fine aggregate: 0～900 part;
Light-weight aggregate: 0～800 part;
Blowing agent: 0～20 part;
Water: 90～500 parts.
Described blowing agent can adopt the known blowing agent that satisfies functional requirement, such as colophonium pyrolytic polymer, rosin soap etc.
Concrete production technology is:
(1) measuring raw materials and stirring: adopt electronic measurement to measure respectively various raw material and mixing and stirring according to proportioning.Raw material stir and can adopt existing known method and apparatus.
(2) compound moulding: the compound that stirs is delivered to carries out moulding on the block machine, the compound moulding can be adopted extrusion forming or moulding by casting.Block machine can adopt existing known block machine.
(3) building block precuring: the building block precuring can be adopted common maintenance (20～40 ℃ of temperature, relative humidity 90～100%), (vapor (steam) temperature is higher than 176 ℃ also can to adopt atmospheric steam curing (normal pressure, vapor (steam) temperature are higher than 100 ℃) or autoclave curing, pressure 0.8～1.5MPa), the closed container that is used for maintenance can adopt curing kilns, steam-cured still, still kettle etc.The demoulding after MgO and the abundant aquation of CaO.
(4) building block carbonized maintaining: the carbonized maintaining of building block can adopt according to the target strength of building block common maintenance, atmospheric steam curing or autoclave curing.Pass into a certain amount of CO to the closed container that is used for maintenance in the carbonized maintaining process
2Gas is realized carbonized maintaining, passes into CO
2Amount should be controlled at the closed container CO that guarantee to be used for maintenance
2Gas volume accounts for 10～90% of mist volume.The CO that passes into
2Can adopt commercially available CO
2The CO of gas or recycling industrial production enterprise (as: brewery, magnesia factory, cement plant etc.) discharging
2Waste gas.Finished product dispatched from the factory when the intensity for the treatment of building block reached target strength.
(2) adopt production technology provided by the invention to produce building board, mainly comprise following several types:
A, only do Binder Materials by the mixture of light-magnesite powder or light-magnesite powder and quick lime and mineral admixture and add fiber or the fiberboard of fiber cloth through making after the carbonization, can make solid slab, cored slab or add blowing agent and make cystosepiment.
B, concrete slab: mixed with mineral admixture by the mixture of light-magnesite powder or light-magnesite powder and quick lime and to do Binder Materials, add different gather materials and adulterating agent can be made different types of concrete slab.As: the adding thickness is gathered materials and is made the normal concrete plate; Add light-weight aggregate and make the light aggregate concrete plate; Add blowing agent and can make the foam concrete plate.
Concrete slab can make solid slab or cored slab or add at hollow parts have insulation, the core (rock wool, expanded perlite, polystyrene etc.) of the function such as heat insulation, sound insulation makes Sandwich type combined board.
Its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 150～350 parts;
Quick lime: 0～100 part;
Mineral admixture: 90～200 parts;
Coarse aggregate: 0～600 part;
Fine aggregate: 0～500 part;
Light-weight aggregate: 0～900 part;
Fiber: 0.5～2 part;
Blowing agent: 0～15 part;
Water: 90～400 parts.
Described blowing agent can adopt the known blowing agent that satisfies functional requirement, such as colophonium pyrolytic polymer, rosin soap etc.
Concrete production technology is:
(1) preparation of compound: will be according to the mixture of the light-magnesite powder of raw material ratio metering or light-magnesite powder and quick lime, mineral admixture, various gather materials and water mixes and stirs and makes slip.The equipment and process that is used for measuring raw materials, mixing and stirring can adopt existing known equipment and process.
(2) compound moulding: plate blank molding technique can adopt existing known plate forming technique, as: extrusion forming process, battery mould pouring forming technology etc.Can adopt in forming process manually and to lay prefabricated fiber cloth in the mould or to adopt fiber jet machinery chopped silk of jet fiber in the mould, the chopped filament length degree of fiber should be controlled at 10～30mm.Must in mould, put into first prefabricated muscle material skeleton before the moulding.
(3) precuring: the precuring of sheet material can be adopted the curing condition identical with above-mentioned building block.The demoulding and cutting after MgO and the abundant aquation of CaO.
(4) carbonized maintaining: the carbonized maintaining of sheet material can adopt the curing condition identical with above-mentioned building block, the CO that passes into
2Concentration can adopt concentration and the source identical with building board with above-mentioned building block with the source.Sheet material reaches the target strength finished product through intensity after the maintenance and dispatches from the factory.
(3) adopt production technology provided by the invention to produce watt, its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 50～150 parts;
Quick lime: 0～60 part;
Mineral admixture: 25～150 parts;
Fine aggregate: 150～600 parts;
Fiber: 0.5～1.5 part;
Water: 30～180 parts.
Concrete production technology is:
(1) preparation of mixed slurry: will mix and stir according to mixture, mineral admixture, fine aggregate, fiber and the water of the light-magnesite powder of raw material ratio metering or light-magnesite powder and quick lime and make slip.The equipment and process that is used for measuring raw materials, mixing and stirring can adopt existing known equipment and process.
(2) compound moulding: adopt existing known corrugated tile automatic moulding machine to carry out the compound moulding, mix the strip moulding and can adopt extrusion forming or pouring forming technology, adopting transverse cutting unit to carry out crosscut after the moulding of mixing strip makes unbaked tile, also need adopt punch to press ripple if produce corrugated tile.
(3) precuring and rip cutting: the unbaked tile precuring should be adopted common maintenance (20～40 ℃ ± 3 ℃ of temperature, relative humidity 95% ± 5%).Treat the abundant aquation of MgO, its intensity is able to slough a watt mould after the requirement of the demoulding.Upper slitter carries out rip cutting after the unbaked tile demoulding.
(4) carbonized maintaining: the carbonized maintaining of corrugated tile should adopt common maintenance (20～40 ℃ ± 3 ℃ of temperature, relative humidity 95% ± 5%), usually carries out in curing kilns.The CO that passes in the curing kilns in the maintenance processes
2Concentration can adopt concentration and the source identical with building board with above-mentioned building block with the source.
(5) unbaked tile carries out painted processing after reaching target strength through intensity after the maintenance, and finished product dispatches from the factory.
Embodiment 1:
Adopt Method and process of the present invention to produce normal concrete small hollow block.Its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 550 parts;
Mineral admixture is chosen flyash: 500 parts;
Coarse aggregate: 1500 parts; The coarse aggregate maximum particle diameter is 10mm;
Fine aggregate: 900 parts;
Water: 500 parts.
Concrete production technology is:
(1) measuring raw materials and stirring: adopt electronic measurement to measure respectively various raw material and mixing and stirring according to proportioning.
(2) compound moulding: the compound that stirs is delivered to moulding on the block machine.Block forming adopts extrusion forming, and briquetting pressure is 5MPa; Building block is of a size of length * wide * height=390mm * 190mm * 190mm, outer wall thickness 40mm wherein, and the thick 30mm of rib, building block is double-row hole, hole dimension is length * wide * height=140mm * 110mm * 190mm.
(3) precuring: the demoulding behind the precuring 5d in the curing kilns (28 ℃ of temperature, relative humidity 80%) is sent in building block.
(4) building block carbonized maintaining: steam-cured still (110 ℃ of normal pressure, vapor (steam) temperatures) is put in the building block after the demoulding, in steam-cured still, passed into CO
2, pass into CO
2Amount guarantee CO in the steam-cured still
2Volume accounts for CO
2With 45% of air gas mixture volume, the CO that passes into
2The CO that adopts the cement plant to produce
2Waste gas.Strength grade reaches and shifts out steam-cured still finished product behind the MU7.5 and dispatch from the factory behind the block curing 3d.
Embodiment 2:
Adopt Method and process of the present invention to produce lightweight small size hollow concrete blocks.Its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 100 parts;
Quick lime: 75 parts;
Mineral admixture is chosen granulated blast-furnace slag: 55 parts;
Light-weight aggregate is chosen float stone: 800 parts; Maximum particle diameter is not more than 10mm;
Water: 90 parts.
Concrete production technology is:
(1) measuring raw materials and stirring: adopt electronic measurement to measure respectively various raw material and mixing and stirring according to proportioning.
(2) compound moulding: the compound that stirs is delivered to extrusion forming on the block machine, briquetting pressure 7.5MPa.Building block is of a size of length * wide * height=290mm * 190mm * 190mm, outer wall thickness 45mm wherein, and the thick 25mm of rib, building block is 3 rounds, hole dimension is length * wide * height=100mm * 50mm * 190mm.
(3) precuring: the demoulding behind the precuring 4d in the curing kilns (30 ℃ of temperature, relative humidity 90%) is sent in building block.
(4) building block carbonized maintaining: the building block after the demoulding is reentered into (30 ℃ of temperature, relative humidity 90%) in the curing kilns, in curing kilns, passes into CO
2, pass into CO
2Amount guarantee CO in the curing kilns
2Volume accounts for CO
2With 50% of air gas mixture volume, the CO that passes into
2The CO that adopts magnesia factory to produce
2Waste gas.Strength grade reaches and shifts out the curing kilns finished product behind the 3.5MPa and dispatch from the factory behind the block curing 10d.
Embodiment 3:
Adopt Method and process of the present invention to produce foam concrete block.Its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 200 parts;
Quick lime: 200 parts;
Mineral admixture is chosen flyash: 150 parts; Red mud mine tailing: 150 parts;
Coarse aggregate: 1000 parts;
Fine aggregate: 600 parts;
Blowing agent is chosen rosin soap: 20 parts;
Water: 300 parts.
Concrete production technology is:
(1) measuring raw materials and stirring: adopt electronic measurement to measure respectively various raw material and mixing and stirring according to proportioning.
(2) compound moulding: the compound that stirs is delivered to moulding on the block machine, and moulding process adopts moulding by casting.Building block is of a size of length * wide * height=600mm * 200mm * 250mm.
(3) precuring: the demoulding behind the precuring 2d in the steam-cured still (120 ℃ of normal pressure, vapor (steam) temperatures) is sent in building block.
(4) building block carbonized maintaining: still kettle (190 ℃ of pressure 1MPa, vapor (steam) temperatures) is put in the building block after the demoulding, in still kettle, passed into CO
2, pass into CO
2Amount guarantee CO in the still kettle
2Volume accounts for CO
2With 75% of air gas mixture volume, the CO that passes into
2Adopt commercially available CO
2Gas.Strength grade reaches and shifts out the still kettle finished product behind the A7.5 and dispatch from the factory behind the block curing 1d.
Embodiment 4:
Adopt Method and process of the present invention to produce glass fibre porous batten, its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 150 parts;
Quick lime: 100 parts;
Mineral admixture is chosen flyash: 50 parts; Slag: 40 parts;
Glass fibre: 2 parts;
Water: 90 parts.
Concrete production technology is:
(1) preparation of slip: will mix and stir according to light-magnesite powder, flyash and the water of raw material ratio metering and make slip.
(2) mixed slurry moulding: adopt the battery mould pouring forming technology to carry out plate blank molding, adopting fiber jet machine spray penetration in the mixed slurry in forming process is the glass chopped silk of 25mm.In mould, put into prefabricated fiberglass reinforced plastics muscles and bones frame before the casting mixture slurry, and colligation is on template.
(3) precuring: slab is sent in the curing kilns (40 ℃ of temperature, relative humidity 70%) behind the precuring 3d demoulding and cut, size of plate blank is length * wide * height=2500mm * 600mm * 60mm, at width 9 row's circular holes, bore dia 50mm, pitch of holes 9mm are set.
(4) carbonized maintaining: the slab after the demoulding is sent into (135 ℃ of normal pressure, vapor (steam) temperatures) in the steam-cured still, in curing kilns, pass into CO
2, pass into CO
2Amount guarantee CO in the steam-cured still
2Volume accounts for CO
2With 65% of air gas mixture volume, the CO that passes into
2The CO that adopts brewery to produce
2Waste gas.Anti-folding failing load reaches and shifts out steam-cured still finished product behind the 1400N and dispatch from the factory behind the slab maintenance 3d.
Embodiment 5:
Adopt Method and process of the present invention to produce the foam concrete plate, its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 350 parts;
Mineral admixture is chosen the silicon ash: 200 parts;
Coarse aggregate: 600 parts;
Fine aggregate: 500 parts;
Blowing agent is chosen rosen polyester: 15 parts;
Bamboo fibre cloth: 0.5 part;
Water: 400 parts.
Concrete production technology is:
(1) preparation of slip: mix and stir according to the various raw material of raw material ratio metering and make slip.
(2) mixed slurry moulding: adopt extrinsion pressing to carry out plate blank molding.Adopt in the forming process manually and successively in mould, lay prefabricated bamboo fibre cloth.
(3) precuring: slab is sent in the steam-cured still (normal pressure, 150 ℃ of vapor (steam) temperatures) behind the precuring 1d demoulding and cut, size of plate blank is length * wide * height=1500mm * 500mm * 150mm.
(4) carbonized maintaining: the slab after the demoulding is sent into (200 ℃ of vapor (steam) temperatures, pressure 1.2MPa) in the still kettle, in still kettle, pass into CO
2, pass into CO
2Amount guarantee CO in the still kettle
2Volume accounts for CO
2With 80% of air gas mixture volume, the CO that passes into
2Adopt commercially available CO
2Gas.Compression strength reaches and shifts out the still kettle finished product after the A10 grade and dispatch from the factory behind the slab maintenance 2d.
Embodiment 6:
Adopt Method and process of the present invention to produce the reinforced-concrete rock wool-steel plywood, its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 200 parts;
Quick lime: 50 parts;
Mineral admixture is chosen granulated blast-furnace slag: 100 parts; Silicon ash: 50 parts;
Coarse aggregate: 300 parts;
Fine aggregate: 250 parts;
Water: 220 parts.
Concrete production technology is:
(1) preparation of compound: mix and stir according to the various raw material of raw material ratio metering and make slip.
(2) mixed slurry moulding: pour into a mould first the supporting course concrete, in template, put into prefabricated bamboo reinforcement network framework before the cast, and colligation is on template; The supporting course concrete is laid prefabricated rock cotton board thereon after the moulding of vibrating; Last casting area layer concrete.
(3) precuring: slab is sent in the curing kilns (35 ℃ of temperature, relative humidity 95%) behind the precuring 5d demoulding and cut, size of plate blank is length * wide * thick=2690mm * 2380mm * 250mm, wherein load-bearing bed thickness 150mm, rock wool bed thickness 50mm, the thick 50mm of surface layer.
(4) carbonized maintaining: the slab after the demoulding is sent into (normal pressure, 150 ℃ of vapor (steam) temperatures) in the steam-cured still, in steam-cured still, pass into CO
2, pass into CO
2Amount guarantee CO in the steam-cured still
2Volume accounts for CO
2With 25% of air gas mixture volume, the CO that passes into
2The CO that adopts magnesia factory to produce
2Waste gas.Shifting out steam-cured still finished product behind the slab maintenance 7d dispatches from the factory.
Embodiment 7:
Adopt Method and process of the present invention to produce light aggregate concrete porous batten, its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 220 parts;
Quick lime: 80 parts;
Mineral admixture is chosen the red mud mine tailing: 180 parts;
Light-weight aggregate is chosen haydites of book structure: 900 parts;
Bombax cotton: 1 part;
Blowing agent is chosen rosen polyester: 15 parts;
Water: 135 parts.
Concrete production technology is:
(1) preparation of slip: mix and stir according to the various raw material of raw material ratio metering and make slip.
(2) mixed slurry moulding: adopt extrinsion pressing to carry out plate blank molding.In mould, place prefabricated bamboo reinforcement skeleton before the moulding.Adopting fiber jet machine spray penetration in the mixed slurry in the forming process is the chopped silk of bombax cotton of 15mm.
(3) precuring and the demoulding: slab is sent into steam-cured still (normal pressure, 140 ℃ of vapor (steam) temperatures) demoulding and cutting behind the precuring 1d in, size of plate blank is length * wide * thick=3300mm * 600mm * 75mm, and at width 8 row's diameters being set is the hole of 44mm, pitch of holes 26mm.
(4) carbonized maintaining: the slab after the demoulding is sent into (205 ℃ of vapor (steam) temperatures, pressure 1.5MPa) in the still kettle, in still kettle, pass into CO
2, pass into CO
2Amount guarantee CO in the still kettle
2Volume accounts for CO
2With 30% of air gas mixture volume, the CO that passes into
2Adopt commercially available CO
2Gas.Shifting out the still kettle finished product behind the slab maintenance 5d dispatches from the factory.
Embodiment 8:
Adopt Method and process of the present invention to produce watt, its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 50 parts;
Mineral admixture is chosen agstone: 25 parts;
Fine aggregate is chosen quartz sand: 150 parts;
Vinylon fibre: 0.5 part;
Water: 30 parts.
Concrete production technology is:
(1) preparation of mixed slurry: will mix and stir according to light-magnesite powder, flyash, quartz sand, vinylon fibre (long 12mm) and the water of raw material ratio metering and make slip.
(2) compound moulding: adopt forming machine to carry out the compound extrusion forming and make unbaked tile, briquetting pressure is 3Mpa.
(3) precuring and rip cutting: unbaked tile sent in the curing kilns slough a watt mould behind (30 ℃ of curing temperatures, relative humidity 85%) precuring 1d, then go up slitter and carry out rip cutting.
(4) carbonized maintaining: again send into after the unbaked tile process demoulding and the rip cutting and carry out carbonized maintaining (30 ℃ of curing temperatures, relative humidity 85%) in the curing kilns.The CO that passes in the curing kilns in the maintenance processes
2Amount guarantee CO in the curing kilns
2Volume accounts for CO
2With 15% of air gas mixture volume, the CO that passes into
2The CO that adopts brewery to produce
2Waste gas.Shift out curing kilns behind the unbaked tile maintenance 36h.
(5) unbaked tile is carried out painted processing, finished product dispatches from the factory.
Embodiment 9:
Adopt Method and process of the present invention to produce watt, its raw material ratio and production technology are:
Raw material ratio calculates by weight and comprises:
Light-magnesite powder: 150 parts;
Quick lime: 60 parts;
Mineral admixture is chosen flyash: 150 parts; Silicon ash: 50 parts;
Fine aggregate is chosen river sand: 600 parts;
Glass fibre: 1.5 parts;
Water: 180 parts.
Concrete production technology is:
(1) preparation of mixed slurry: will mix and stir according to light-magnesite powder, flyash, quartz sand, glass fibre (long 20mm) and the water of raw material ratio metering and make slip.
(2) compound moulding: adopt forming machine that compound is built moulding, make unbaked tile.
(3) precuring and rip cutting: unbaked tile sent in the curing kilns slough a watt mould behind (25 ℃ of curing temperatures, relative humidity 65%) precuring 2d, then go up slitter and carry out rip cutting.
(4) carbonized maintaining: again send into after the unbaked tile process demoulding and the rip cutting and carry out carbonized maintaining (30 ℃ of curing temperatures, relative humidity 65%) in the curing kilns.The CO that passes in the curing kilns in the maintenance processes
2Amount guarantee CO in the curing kilns
2Volume accounts for CO
2With 18% of air gas mixture volume, the CO that passes into
2The CO that adopts the cement plant to produce
2Waste gas.Finished product dispatches from the factory behind the unbaked tile maintenance 48h.
(5) unbaked tile is carried out painted processing, finished product dispatches from the factory.
Claims (10)
1. production technology of producing the building enclosure material product, it is characterized in that: the flow process of described technique is as follows:
1. raw material mix and stir: described raw material comprise mixture, mineral admixture and the water of light-magnesite powder or light-magnesite powder and quick lime; 2. compound moulding; 3. precuring: common maintenance, atmospheric steam curing or autoclave curing are adopted in described precuring; 4. carbonized maintaining is made finished product; Described carbonized maintaining adopts common maintenance, atmospheric steam curing or autoclave curing, passes into CO to the closed container that is used for maintenance in the maintenance processes
2Gas passes into CO
2The amount of gas is controlled at the closed container CO that guarantees to be used for maintenance
2Gas volume accounts for 10～90% of mist volume.
2. a kind of production technology of producing the building enclosure material product according to claim 1, it is characterized in that: described raw material also comprise and gathering materials.
3. a kind of production technology of producing the building enclosure material product according to claim 1, it is characterized in that: the activated magnesia mass percentage content is more than 60% in the light-magnesite powder, and the mass percentage content of calcium oxide should be not less than 75% in the quick lime; The mass percent of light-magnesite powder is not less than 50% in the mixture of described light-magnesite powder and quick lime; The mixture of light-magnesite powder or light-magnesite powder and quick lime and the mass ratio of mineral admixture are 30%～70%: 70%～30%; The mixture of light-magnesite powder, quick lime and mineral admixture is 30%～100%: 70%～0% with the mass ratio that gathers materials.
4. a kind of production technology of producing the building enclosure material product according to claim 1, it is characterized in that: described mineral admixture is that grain diameter is less than the artificial or natural mineral material of 100 μ m; Described gathering materials comprises coarse aggregate, fine aggregate or light-weight aggregate, and wherein coarse aggregate is that particle diameter is greater than rubble, the cobble of 4.75mm; Fine aggregate is the sand of particle diameter between 0.15mm to 4.75mm; Light-weight aggregate is that density is not more than 1200kg/m
3Expanded perlite, slag, float stone or haydite.
5. a kind of production technology of producing the building enclosure material product according to claim 1 is characterized in that: described mineral admixture is one or more the mixture in granulated blast-furnace slag, flyash, silicon ash, slag, red mud mine tailing or the agstone.
6. according to claims 1 described a kind of production technology of producing the building enclosure material product, it is characterized in that: add the tension reinforcing material in the described building enclosure material, described tension reinforcing material is fiber, sheet material or muscle material.
7. according to claims 1 described a kind of production technology of producing the building enclosure material product, it is characterized in that: described fiber is the chopped silk of fiber that non-directional distributes, or the continuous filament of directional profile; The braid of described sheet material for adopting above-mentioned fibrage to form; Described muscle material uses the muscle material of being made by above-mentioned fiber.
8. according to claims 1 described a kind of production technology of producing the building enclosure material product, it is characterized in that: described common curing condition is 15 ℃～40 ℃ of temperature, relative humidity 60%～100%; Described atmospheric steam curing condition is that normal pressure, vapor (steam) temperature are higher than 100 ℃; Described autoclave curing condition is that vapor (steam) temperature is higher than 176 ℃, pressure 0.8～1.5MPa.
9. a kind of production technology of producing the building enclosure material product according to claim 1 is characterized in that: described CO for passing into for the closed container of maintenance
2Adopt commercially available CO
2The CO of gas or the discharging of recycling industrial production enterprise
2Waste gas.
10. a kind of production technology of producing the building enclosure material product according to claim 1 is characterized in that: described building enclosure material product be building block, sheet material or watt, wherein building block and plate are solid form, hollow form or porous form.
The raw material ratio of producing building block product calculates by weight and comprises:
Light-magnesite powder: 100～550 parts;
Quick lime: 0～200 part;
Mineral admixture: 55～500 parts;
Coarse aggregate: 0～1500 part;
Fine aggregate: 0～900 part;
Light-weight aggregate: 0～800 part;
Blowing agent: 0～20 part;
Water: 90～500 parts.
The raw material ratio of producing sheet material calculates by weight and comprises:
Light-magnesite powder: 150～350 parts;
Quick lime: 0～100 part;
Mineral admixture: 90～200 parts;
Coarse aggregate: 0～600 part;
Fine aggregate: 0～500 part;
Light-weight aggregate: 0～900 part;
Fiber: 0.5～2 part;
Blowing agent: 0～15 part;
Water: 90～400 parts.
The raw material ratio of producing watt calculates by weight and comprises:
Light-magnesite powder: 50～150 parts;
Quick lime: 0～60 part;
Mineral admixture: 25～150 parts;
Fine aggregate: 150～600 parts;
Fiber: 0.5～1.5 part;
Water: 30～180 parts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210421963XA CN102909783A (en) | 2012-10-29 | 2012-10-29 | Production process of building envelope products |
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| US11680015B2 (en) | 2021-09-29 | 2023-06-20 | Wuhan University Of Technology | CO2 solidified fiber cement board and its preparation method |
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