CN111516120A - ALC autoclaved aerated concrete slab and preparation method thereof - Google Patents
ALC autoclaved aerated concrete slab and preparation method thereof Download PDFInfo
- Publication number
- CN111516120A CN111516120A CN202010300093.5A CN202010300093A CN111516120A CN 111516120 A CN111516120 A CN 111516120A CN 202010300093 A CN202010300093 A CN 202010300093A CN 111516120 A CN111516120 A CN 111516120A
- Authority
- CN
- China
- Prior art keywords
- parts
- weight
- core plate
- aerated concrete
- concrete slab
- 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.)
- Pending
Links
Images
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
- 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
- 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
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
- E04D3/04—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of concrete or ceramics
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The application discloses an ALC autoclaved aerated concrete slab, which comprises a concrete slab body (1), wherein the concrete slab body (1) comprises a core plate (2) and two face plates (3), the core plate (2) is arranged between the two face plates (3), the core plate (2) and the face plates (3) are made of autoclaved aerated concrete materials, a plurality of steel fiber anti-cracking fiber strips are arranged in the core plate (2), and basalt fiber anti-cracking fiber strips are contained in the face plates (3); the surface area of the surface of the face plate (3) facing the core plate (2) is greater than the surface area of the surface of the core plate (2) facing the face plate (3). The ALC autoclaved aerated concrete slab disclosed by the invention is made of environment-friendly materials, has good heat preservation, improves the energy-saving property of a building, is convenient to perform plastering during installation, increases the bonding area, improves the bonding firmness and has high crack resistance.
Description
Technical Field
The invention relates to an ALC autoclaved aerated concrete slab and a preparation method thereof, and belongs to the field of building materials.
Background
ALC is short for autoclaved lightweight concrete, and is one of high-performance autoclaved aerated concrete. The ALC board is a porous concrete forming board (reinforced with processed reinforcing steel bars) which is formed by curing fly ash (or silica sand), cement, lime and the like serving as main raw materials through high-pressure steam. The ALC board can be used as a wall material and a roof board, and is a novel building material with excellent performance. The ALC board not only has good heat preservation performance, but also has better heat insulation performance. When the reasonable thickness is adopted, the heat insulation material can be used in cold areas with high heat insulation requirements, can also be used in cold areas with high heat insulation requirements in summer and hot winter or in hot areas in summer and hot winter, and meets the requirements of building energy-saving standards. The conventional ALC autoclaved aerated concrete slab mainly comprises the steps of material proportioning, stirring, pouring, pre-curing, cutting, autoclaving and curing, wherein a plate is generally hexahedron-shaped after being cut, the processing shape is single, when the ALC autoclaved aerated concrete slab is installed and fixed on site through bonding ash, a groove needs to be formed in the side surface of the ALC autoclaved aerated concrete slab to increase the bonding area and improve the bonding firmness, at the moment, a groove needs to be formed on the site by using tools such as an angle grinder and the like on a construction site, the operation is complex, the site assembly time is prolonged, and the requirements of various installation conditions are difficult to adapt.
Disclosure of Invention
Aiming at the defects in the prior art, the technical scheme of the invention provides an ALC autoclaved aerated concrete slab and a preparation method thereof.
In order to solve the technical problems, the ALC autoclaved aerated concrete slab comprises a concrete slab body, wherein the concrete slab body comprises a core plate and two face plates, the core plate is arranged between the two face plates, the core plate and the face plates are made of autoclaved aerated concrete materials, a plurality of steel fiber anti-cracking fiber strips are arranged in the core plate, and basalt fiber anti-cracking fiber strips are arranged in the face plates; the surface area of the face sheet facing the core sheet is greater than the surface area of the core sheet facing the face sheet; the surface of the panel facing the core plate is provided with an embedded groove, the embedded groove is arranged in the middle of the surface of the panel facing the core plate, and the core plate is inserted in the embedded groove; the panel is characterized in that a transverse grouting hole and a plurality of longitudinal grouting holes are formed in the core plate, the longitudinal grouting holes are arranged in parallel and perpendicular to the transverse grouting holes, the longitudinal grouting holes are communicated with the transverse grouting holes, the transverse grouting holes and the longitudinal grouting holes are arranged in parallel with the panel, and an end opening of each longitudinal grouting hole and an end opening of each transverse grouting hole are arranged on the side surface of the core plate.
Among the technical scheme of this application, evaporate pressure aerated concrete board with ALC and set up to the form by a core and two panel equipment, the core passes through on the panel inlay the recess and is connected with the panel, because the surface area of panel towards the surface of core is greater than the surface area of core towards the surface of panel, assemble the back at two panels and a core, form the recess of a bar between the border of two panels and the side surface of core, conveniently evaporate the thick liquid when ALC evaporates pressure aerated concrete board installation, in order to increase the bonding area, improve the bonding firmness. The application of ALC evaporates presses no reinforcing bar in the aerated concrete board, but has kept horizontal grout hole and a plurality of vertical grout hole, when the installation, passes horizontal grout hole and vertical grout hole and cast concrete with the reinforcing bar, conveniently presses a plurality of ALC to evaporate to press aerated concrete board to connect as a whole, improves the firm in connection degree that ALC evaporates between the aerated concrete board.
The steel fiber anti-cracking fiber strips commonly used in the prior art are the fiber types with the strongest tensile strength and toughness in all the existing tensile fibers, but the steel fiber anti-cracking fiber strips can affect the strength of the steel fiber anti-cracking fiber strips after being exposed in the air for a long time, are easy to break and affect the anti-cracking performance of concrete. In order to prevent the steel fiber anti-cracking fiber strips from being exposed in the air, the steel fiber anti-cracking fiber strips are used in the core plate, and the basalt anti-cracking fiber strips are used in the face plates, so that the steel fiber anti-cracking fiber strips of the ALC autoclaved aerated concrete slab can be prevented from being exposed in the air for a long time, and the steel fiber anti-cracking fiber strips are used in the core layer, so that the ALC autoclaved aerated concrete slab has good anti-cracking performance, and the anti-cracking requirement of the ALC autoclaved aerated concrete slab is met.
Preferably, above-mentioned ALC evaporates presses aerated concrete slab, evenly be provided with a plurality of inside steel bar anchor rods in the core, inside steel bar anchor rod perpendicular to panel setting, the both ends of inside steel bar anchor rod are outstanding in the core surface and are set up in the panel, inlay to be provided with the reinforcing bar groove that is used for holding inside steel bar anchor rod in the recess.
In this application, improve the firm in connection degree of core and panel through inside steel bar stock for the bulk strength of core and panel improves, and then improves ALC and evaporates the bulk strength that presses aerated concrete board.
A preparation method of an ALC autoclaved aerated concrete slab comprises the following steps:
1) preparing all raw materials, wherein the raw materials comprise fly ash, combustion ash, slag, cement, quick lime, quartz sand, diatomite, gypsum powder, aluminum powder, soda ash, borax, sodium metasilicate pentahydrate, sodium silicate, calcium nitrate and sodium lignosulfonate; levigating quartz sand in a wet-milling mode to form a first slurry; mixing slag, fly ash and combustion ash, and then grinding in a dry grinding mode; grinding quicklime in a dry grinding mode;
2) stirring and mixing the slag, the fly ash, the combustion ash and the quick lime which are ground in the step 1) and then sintering;
3) adding water into sodium silicate and calcium nitrate respectively, and stirring uniformly to form a sodium silicate water-soluble material and a calcium nitrate water-soluble material;
4) stirring and mixing a sodium silicate water-soluble material and a calcium nitrate water-soluble material; adding sodium lignosulfonate in the process of stirring and mixing the sodium silicate water-soluble material and the calcium nitrate water-soluble material, adding the sodium lignosulfonate, and continuously stirring for a period of time;
5) adding the mixed slurry I prepared in the step 1) into a stirrer, adding cement and water into the stirrer and continuously stirring;
6) after the step 5), adding the slag, the fly ash, the burning ash and the quick lime sintered in the step 2) into a stirrer, then adding diatomite and continuously stirring;
7) after the step 6) is finished, sequentially adding steel fiber anti-crack fiber strips, soda ash, borax, gypsum powder, sodium metasilicate pentahydrate and aluminum powder into a stirrer, and continuously stirring in the adding process to obtain concrete slurry II;
8) preparing a core plate forming die, pouring the concrete slurry II after the step 7) is finished into the core plate forming die, and then sequentially carrying out temperature rise pre-curing, demoulding and cutting to obtain a core plate block material of the core plate;
9) repeating the steps 1) to 6), then sequentially adding basalt anti-crack fiber strips, soda ash, borax, gypsum powder, sodium metasilicate pentahydrate and aluminum powder into a stirrer, and continuously stirring in the adding process to obtain concrete slurry III;
10) preparing a forming die of the panel, pouring the concrete slurry III after the step 9) is finished into the forming die of the panel, and then sequentially carrying out temperature-rising pre-curing, demoulding and cutting to obtain a panel block material of the panel;
11) smearing concrete slurry III on the inner surface of the inlaying groove of the panel block material obtained after the step 10) is finished, and placing the core plate block material in the inlaying groove to form a plate body material;
12) putting the plate body material obtained in the step 11) into an autoclave for autoclave curing, and then cooling to obtain the ALC autoclaved aerated concrete slab.
Among the technical scheme of this application, pour the core in advance to pour the cutting shaping with the core, then pour the cutting panel, when the core is connected with the panel, paint concrete slurry two or concrete slurry three in inlaying the recess, through concrete slurry with core and panel adhesion connection, improve the firm in connection degree of core and panel.
In order to prevent the steel fiber anti-cracking fiber strips from being exposed in the air for a long time, the steel fiber anti-cracking fiber strips are added when the core plate is poured for preparation, the basalt anti-cracking fiber strips are added when the panel is poured for preparation, and the steel fiber anti-cracking fiber strips are only positioned in the core plate after assembly, so that the steel fiber anti-cracking fiber strips of the ALC autoclaved aerated concrete panel can be prevented from being exposed in the air for a long time, and the core plate uses the steel fiber anti-cracking fiber strips, so that the ALC autoclaved aerated concrete panel has better anti-cracking performance compared with the autoclaved aerated concrete panel using the fiber strips made of other materials.
When the ALC autoclaved aerated concrete slab is cast and molded, a plurality of sections of round pipes are arranged in the casting template, the positions of the round pipes are matched with the positions of the transverse grouting holes and the longitudinal grouting holes, and the surfaces of the round pipes are coated with coatings which are convenient to remove a formwork or wrapped with non-woven fabric strips in a winding mode, so that the round pipes are convenient to remove the formwork.
In this application, fly ash, combustion ash, slag, cement, quick lime, quartz sand, diatomaceous earth, gypsum powder, aluminum powder, soda ash, borax, sodium metasilicate pentahydrate, sodium silicate, calcium nitrate, and sodium lignosulfonate are used as raw materials. The quicklime and the gypsum powder are used as raw materials for providing calcium, the fly ash, the combustion ash, the slag and the quartz sand are used as raw materials for providing silicon dioxide, and a large amount of fly ash, combustion ash and slag are used, so that the cost is saved, the waste is utilized, a good energy-saving effect is achieved, and resources are saved. The aluminum powder is used as a gas former, the soda ash improves the alkalinity of slurry, the gas of the aluminum powder and the gypsum are accelerated to generate calcium carbonate, the delayed coagulation effect of the gypsum is weakened, and the slag activator is used for promoting the hydration of the slag, so that the thickening of a green body is promoted. Borax is a strong retarder for cement and can delay the thickening time of the slurry. The sodium silicate (Na 2O. nSiO2) can delay the gas evolution time of the lead powder, and the function of the sodium silicate is probably to form a protective film on the surface of the lead powder so that the aluminum powder cannot be immediately contacted with the alkali solution to delay the gas evolution. Sodium metasilicate pentahydrate is used as pH value buffer, and has the function of accelerating coagulation. The sodium silicate is mixed with the calcium nitrate, so that the hydration property of the slurry is improved, the gas generation speed of the aluminum powder is inhibited, the phenomenon of die collapse caused by too high gas generation speed is prevented, and the uniformity of air holes in the ALC autoclaved aerated concrete slab is improved. Sodium lignosulfonate as a dispersant.
And (3) sintering the ground slag, fly ash, burning ash and quick lime after stirring and mixing, and keeping the slag, fly ash, burning ash and quick lime to have better activity. The quicklime is used because the quicklime generates heat when meeting water, and the generation of hydrate gel is promoted. The diatomite is used as an adsorbent to absorb harmful gas generated in the production process, so that the healthy use of the ALC autoclaved aerated concrete slab is ensured.
Preferably, in the preparation method of the ALC autoclaved aerated concrete slab, the weight ratio of the raw materials prepared in the step 1) is as follows: the total amount of the fly ash, the combustion ash and the slag is 65-70 parts by weight, wherein the fly ash is at least 40 parts by weight; the total amount of cement and quicklime is 30-35 parts by weight; 20-25 parts of quartz sand; 5-8 parts of diatomite; 3-5 parts of gypsum powder; 8 parts of aluminum powder; the total amount of the sodium carbonate and the borax is 4 parts by weight; 0.05 part of sodium metasilicate pentahydrate, 0 part of sodium silicate, 3-0 part of sodium silicate and 4 parts of sodium metasilicate; 0.04 to 0.05 weight part of calcium nitrate; 0.05 part by weight of sodium lignin sulfonate; wherein the cement is 425 ordinary silica cement.
In this application, 425 ordinary silica cement that cement chose for use, comprehensive casting stability, body hardening speed and goods intensity, 425 ordinary silica cement can both reach the operation requirement. If 325 slag cement is selected, the amount of cement used needs to be greatly increased.
Preferably, in the preparation method of the ALC autoclaved aerated concrete slab, the weight ratio of the raw materials prepared in the step 1) is as follows: the total amount of the fly ash, the combustion ash and the slag is 68 parts by weight, wherein the fly ash accounts for 40 parts by weight; the total amount of the cement and the quicklime is 32 parts by weight, wherein the cement is 15 parts by weight; 22 parts of quartz sand; 6 parts of diatomite; 4 parts of gypsum powder; 8 parts of aluminum powder; the total amount of the sodium carbonate and the borax is 4 parts by weight, wherein the sodium carbonate is 2 parts by weight; 0.05 part by weight of sodium metasilicate pentahydrate and 0 part by weight of sodium silicate and 4 parts by weight of sodium silicate; the total amount of calcium nitrate is 0.04 parts by weight; 0.05 part by weight of sodium lignin sulfonate.
Preferably, in the step 7), the stirring time before adding the aluminum powder is 10 minutes, and the stirring time after adding the aluminum powder is 20 seconds; in step 9), the stirring time before the addition of the aluminum powder was 10 minutes, and the stirring time after the addition of the aluminum powder was 20 seconds.
In this application, the churning time after adding the aluminite powder shortens to 20 seconds, prevents that the aluminium powder from sending out gas too early at the stirring in-process for the bubble structure receives destruction, influences ALC and evaporates the structure of pressing aerated concrete board.
Preferably, in the preparation method of the ALC autoclaved aerated concrete slab, in the step 8), the pouring temperature is kept at 40-45 ℃; specifically, in the step 8), the pouring temperature is kept at 45 ℃; in the step 10), the casting temperature is kept at 40-45 ℃; specifically, in step 10), the casting temperature is maintained at 45 degrees celsius.
In the application, in order to coordinate the gas generation and thickening processes, the temperature of the second concrete slurry and the temperature of the third concrete slurry are stabilized at 40-45 ℃ before pouring, so that too high temperature is prevented from generating gas too early in the stirring process. And the temperature of 40-45 ℃ can ensure that the concrete slurry II and the concrete slurry III keep proper air generating speed after pouring, and prevent too small or too small air bubbles caused by too slow initiation.
Preferably, in the step 7), sampling is started before adding the aluminum powder to measure the consistency, and the aluminum powder is added after the consistency of the slurry reaches the standard; in the step 9), sampling and measuring the consistency before adding the aluminum powder, and adding the aluminum powder after the consistency of the slurry reaches the standard; the method for measuring the consistency by sampling comprises the following steps: vertically placing a steel pipe with the diameter of 50mm, the height of 100mm and a smooth inner wall on plate glass, injecting the slurry without aluminum powder in the step 9) into the steel pipe, quickly lifting the steel pipe vertical to the plate glass to enable a distance between the lower end of the steel pipe and the plate glass to be larger than 2 cm and smaller than 10 cm, and measuring the diameter of a collapse surface of the slurry flowing onto the plate glass; and within 3 seconds after the slurry flows onto the flat glass, the diameter of the collapsed surface of the slurry on the flat glass is less than 100mm, and the consistency of the slurry reaches the standard.
In this application, before adding the aluminite powder, test the thick liquids consistency, add the aluminite powder after the thick liquids consistency reaches standard again, prevent that the thick liquids consistency is not up to standard, need add in raw material after adding the aluminite powder for aluminite powder stirring time overlength and influence the aluminite powder and generate gas.
Preferably, in the step 12), the autoclaved curing time is 14-20 hours, the autoclaved temperature is 160-170 ℃, and the autoclaved pressure is 2-3 MPa; and 2) grinding the slag, the fly ash, the combustion ash and the quicklime to a particle size of less than or equal to 0.05 mm, wherein the sintering time is 50 minutes and the sintering temperature is 1200 ℃.
Preferably, in the preparation method of the ALC autoclaved aerated concrete slab, the stirring time in the step 3) and the step 4) is 5 minutes respectively; in the step 5) and the step 6), the stirring time is 10 minutes respectively, and the stirring speed of the stirrer is kept at 120-150 rpm.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
fig. 5 is a sectional view a-a of fig. 2.
Detailed Description
The technical features of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
As shown in the figures, the ALC autoclaved aerated concrete slab comprises a concrete slab body 1, wherein the concrete slab body 1 comprises a core plate 2 and two face plates 3, the core plate 2 is arranged between the two face plates 3, the core plate 2 and the face plates 3 are made of autoclaved aerated concrete materials, a plurality of steel fiber anti-crack fiber strips are arranged in the core plate 2, and the face plates 3 contain basalt fiber anti-crack strips; the surface area of the surface of the face plate 3 facing the core plate 2 is larger than the surface area of the surface of the core plate 2 facing the face plate 3; the surface of the panel 3 facing the core plate 2 is provided with an embedded groove 4, the embedded groove 4 is arranged in the middle of the surface of the panel 3 facing the core plate 2, and the core plate 2 is inserted in the embedded groove 4; the panel is characterized in that transverse grouting holes 5 and a plurality of longitudinal grouting holes 6 are formed in the core plate 2, the longitudinal grouting holes 6 are arranged in parallel and perpendicular to the transverse grouting holes 5, the longitudinal grouting holes 6 are communicated with the transverse grouting holes 5, the transverse grouting holes 5 and the longitudinal grouting holes 6 are arranged in parallel with the panel 3, and end openings of the longitudinal grouting holes 6 and end openings of the transverse grouting holes 5 are arranged on the side surface of the core plate 2.
Among the technical scheme of this application, evaporate pressure aerated concrete board with ALC and set up to the form by a core 2 and two 3 equipment of panel, core 2 is connected with panel 3 through inlaying recess 4 on the panel 3, because the surface area of panel 3 towards 2 surfaces of core is greater than the surface area of core 2 towards 3 surfaces of panel, assemble the back at two panels 3 and a core 2, form the recess of a bar between the border of two panels 3 and 2 side surfaces of core, the convenience is puted the thick liquid when ALC evaporates pressure aerated concrete board installation, with the increase bonding area, improve bonding firmness. The application of ALC evaporates presses no reinforcing bar in the aerated concrete board, but has kept horizontal grout hole 5 and a plurality of vertical grout hole 6, when the installation, passes horizontal grout hole 5 and vertical grout hole 6 and pouring concrete with the reinforcing bar, conveniently evaporates a plurality of ALC and presses aerated concrete board to connect as a whole, improves the firm in connection degree that ALC evaporates between the aerated concrete board.
The steel fiber anti-cracking fiber strips commonly used in the prior art are the fiber types with the strongest tensile strength and toughness in all the existing tensile fibers, but the steel fiber anti-cracking fiber strips can affect the strength of the steel fiber anti-cracking fiber strips after being exposed in the air for a long time, are easy to break and affect the anti-cracking performance of concrete. In order to prevent the steel fiber anti-cracking fiber strips from being exposed in the air, the steel fiber anti-cracking fiber strips are used in the core plate 2, and the basalt anti-cracking fiber strips are used in the panel 3, so that the steel fiber anti-cracking fiber strips of the ALC autoclaved aerated concrete slab can be prevented from being exposed in the air for a long time, and the steel fiber anti-cracking fiber strips are used in the core layer, so that the ALC autoclaved aerated concrete slab has good anti-cracking performance, and the anti-cracking requirement of the ALC autoclaved aerated concrete slab is met.
Evenly be provided with a plurality of inside steel bar stock 7 in the core 2, inside steel bar stock 7 perpendicular to panel 3 sets up, and the both ends of inside steel bar stock 7 are outstanding in the core 2 surface and set up in panel 3, inlay and be provided with the reinforcing bar groove 9 that is used for holding inside steel bar stock 7 in the recess 4.
In this application, improve core 2 and panel 3's firm in connection degree through inside steel bar stock 7 for core 2 and panel 3's bulk strength improves, and then improves ALC and evaporates the bulk strength that presses aerated concrete board.
A preparation method of an ALC autoclaved aerated concrete slab comprises the following steps:
1) preparing all raw materials, wherein the raw materials comprise fly ash, combustion ash, slag, cement, quick lime, quartz sand, diatomite, gypsum powder, aluminum powder, soda ash, borax, sodium metasilicate pentahydrate, sodium silicate, calcium nitrate and sodium lignosulfonate; levigating quartz sand in a wet-milling mode to form a first slurry; mixing slag, fly ash and combustion ash, and then grinding in a dry grinding mode; grinding quicklime in a dry grinding mode;
2) stirring and mixing the slag, the fly ash, the combustion ash and the quick lime which are ground in the step 1) and then sintering;
3) adding water into sodium silicate and calcium nitrate respectively, and stirring uniformly to form a sodium silicate water-soluble material and a calcium nitrate water-soluble material;
4) stirring and mixing a sodium silicate water-soluble material and a calcium nitrate water-soluble material; adding sodium lignosulfonate in the process of stirring and mixing the sodium silicate water-soluble material and the calcium nitrate water-soluble material, adding the sodium lignosulfonate, and continuously stirring for a period of time;
5) adding the mixed slurry I prepared in the step 1) into a stirrer, adding cement and water into the stirrer and continuously stirring;
6) after the step 5), adding the slag, the fly ash, the burning ash and the quick lime sintered in the step 2) into a stirrer, then adding diatomite and continuously stirring;
7) after the step 6) is finished, sequentially adding steel fiber anti-crack fiber strips, soda ash, borax, gypsum powder, sodium metasilicate pentahydrate and aluminum powder into a stirrer, and continuously stirring in the adding process to obtain concrete slurry II;
8) preparing a forming die of the core plate 2, pouring the concrete slurry II after the step 7) is finished into the forming die of the core plate 2, and then sequentially carrying out temperature-rise pre-curing, demoulding and cutting to obtain a core plate block material of the core plate 2;
9) repeating the steps 1) to 6), then sequentially adding basalt anti-crack fiber strips, soda ash, borax, gypsum powder, sodium metasilicate pentahydrate and aluminum powder into a stirrer, and continuously stirring in the adding process to obtain concrete slurry III;
10) preparing a forming die of the panel 3, pouring the concrete slurry III after the step 9) is finished into the forming die of the panel 3, and then sequentially carrying out temperature-rising pre-curing, demoulding and cutting to obtain a panel block material of the panel 3;
11) smearing concrete slurry III on the inner surface of the inlaying groove 4 of the panel block material obtained after the step 10) is finished, and placing the core plate block material in the inlaying groove 4 to form a plate body material;
12) putting the plate body material obtained in the step 11) into an autoclave for autoclave curing, and then cooling to obtain the ALC autoclaved aerated concrete slab.
In the technical scheme of this application, pour core 2 in advance to pour the cutting shaping with core 2, then pour cutting panel 3, when core 2 is connected with panel 3, paint concrete slurry two or concrete slurry three in inlaying recess 4, through concrete slurry with core 2 and the adhesion of panel 3 connect, improve core 2 and panel 3's firm in connection degree.
In order to prevent the steel fiber anti-crack fiber strips from being exposed in the air for a long time, the steel fiber anti-crack fiber strips are added when the core plate 2 is poured for preparation, the basalt anti-crack fiber strips are added when the panel 3 is poured for preparation, and the steel fiber anti-crack fiber strips are only positioned in the core plate 2 after assembly, so that the steel fiber anti-crack fiber strips of the ALC autoclaved aerated concrete plate can be prevented from being exposed in the air for a long time, and the core plate 2 uses the steel fiber anti-crack fiber strips, so that the ALC autoclaved aerated concrete plate has better anti-crack performance compared with autoclaved aerated concrete plates using other material fiber strips.
When the ALC autoclaved aerated concrete slab is cast and molded, a plurality of sections of round pipes are arranged in the casting template, the positions of the round pipes are matched with the positions of the transverse grouting holes 5 and the longitudinal grouting holes 6, and the surfaces of the round pipes are coated with coatings which are convenient to remove a mold or wrapped with non-woven fabric strips in a winding mode, so that the round pipes are convenient to remove the mold.
In this application, fly ash, combustion ash, slag, cement, quick lime, quartz sand, diatomaceous earth, gypsum powder, aluminum powder, soda ash, borax, sodium metasilicate pentahydrate, sodium silicate, calcium nitrate, and sodium lignosulfonate are used as raw materials. The quicklime and the gypsum powder are used as raw materials for providing calcium, the fly ash, the combustion ash, the slag and the quartz sand are used as raw materials for providing silicon dioxide, and a large amount of fly ash, combustion ash and slag are used, so that the cost is saved, the waste is utilized, a good energy-saving effect is achieved, and resources are saved. The aluminum powder is used as a gas former, the soda ash improves the alkalinity of slurry, the gas of the aluminum powder and the gypsum are accelerated to generate calcium carbonate, the delayed coagulation effect of the gypsum is weakened, and the slag activator is used for promoting the hydration of the slag, so that the thickening of a green body is promoted. Borax is a strong retarder for cement and can delay the thickening time of the slurry. The sodium silicate (Na 2O. nSiO2) can delay the gas evolution time of the lead powder, and the function of the sodium silicate is probably to form a protective film on the surface of the lead powder so that the aluminum powder cannot be immediately contacted with the alkali solution to delay the gas evolution. Sodium metasilicate pentahydrate is used as pH value buffer, and has the function of accelerating coagulation. The sodium silicate is mixed with the calcium nitrate, so that the hydration property of the slurry is improved, the gas generation speed of the aluminum powder is inhibited, the phenomenon of die collapse caused by too high gas generation speed is prevented, and the uniformity of air holes in the ALC autoclaved aerated concrete slab is improved. Sodium lignosulfonate as a dispersant.
And (3) sintering the ground slag, fly ash, burning ash and quick lime after stirring and mixing, and keeping the slag, fly ash, burning ash and quick lime to have better activity. The quicklime is used because the quicklime generates heat when meeting water, and the generation of hydrate gel is promoted. The diatomite is used as an adsorbent to absorb harmful gas generated in the production process, so that the healthy use of the ALC autoclaved aerated concrete slab is ensured.
The weight ratio of the raw materials prepared in the step 1) is as follows: the total amount of the fly ash, the combustion ash and the slag is 65 parts by weight, wherein the fly ash is 40 parts by weight; the total amount of cement and quicklime is 30 parts by weight; 20 parts of quartz sand; 5 parts of diatomite; 3 parts of gypsum powder; 8 parts of aluminum powder; the total amount of the sodium carbonate and the borax is 4 parts by weight; 0.05 part by weight of sodium metasilicate pentahydrate and 0 part by weight of sodium silicate and 3 parts by weight of sodium silicate; the total amount of calcium nitrate is 0.04 parts by weight; 0.05 part by weight of sodium lignin sulfonate; wherein the cement is 425 ordinary silica cement.
In this application, 425 ordinary silica cement that cement chose for use, comprehensive casting stability, body hardening speed and goods intensity, 425 ordinary silica cement can both reach the operation requirement. If 325 slag cement is selected, the amount of cement used needs to be greatly increased.
In the step 7), the stirring time before adding the aluminum powder is 10 minutes, and the stirring time after adding the aluminum powder is 20 seconds; in step 9), the stirring time before the addition of the aluminum powder was 10 minutes, and the stirring time after the addition of the aluminum powder was 20 seconds.
In this application, the churning time after adding the aluminite powder shortens to 20 seconds, prevents that the aluminium powder from sending out gas too early at the stirring in-process for the bubble structure receives destruction, influences ALC and evaporates the structure of pressing aerated concrete board.
In step 8), the casting temperature is kept at 40 ℃; in step 10), the casting temperature is maintained at 40 degrees celsius.
In the application, in order to coordinate the gas generation and thickening processes, the temperature of the second concrete slurry and the temperature of the third concrete slurry are stabilized at 40-45 ℃ before pouring, so that too high temperature is prevented from generating gas too early in the stirring process. And the temperature of 40-45 ℃ can ensure that the concrete slurry II and the concrete slurry III keep proper air generating speed after pouring, and prevent too small or too small air bubbles caused by too slow initiation.
In the step 7), sampling and measuring the consistency before adding the aluminum powder, and adding the aluminum powder after the consistency of the slurry reaches the standard; in the step 9), sampling and measuring the consistency before adding the aluminum powder, and adding the aluminum powder after the consistency of the slurry reaches the standard; the method for measuring the consistency by sampling comprises the following steps: vertically placing a steel pipe with the diameter of 50mm, the height of 100mm and a smooth inner wall on plate glass, injecting the slurry without aluminum powder in the step 9) into the steel pipe, quickly lifting the steel pipe vertical to the plate glass to enable a distance between the lower end of the steel pipe and the plate glass to be larger than 2 cm and smaller than 10 cm, and measuring the diameter of a collapse surface of the slurry flowing onto the plate glass; and within 3 seconds after the slurry flows onto the flat glass, the diameter of the collapsed surface of the slurry on the flat glass is less than 100mm, and the consistency of the slurry reaches the standard.
In this application, before adding the aluminite powder, test the thick liquids consistency, add the aluminite powder after the thick liquids consistency reaches standard again, prevent that the thick liquids consistency is not up to standard, need add in raw material after adding the aluminite powder for aluminite powder stirring time overlength and influence the aluminite powder and generate gas.
In the step 12), the autoclave curing time is 14-20 hours, the autoclave temperature is 160 ℃, and the autoclave pressure is 2 MPa; and 2) grinding the slag, the fly ash, the combustion ash and the quicklime to a particle size of 0.05 mm, wherein the sintering time is 50 minutes and the sintering temperature is 1200 ℃.
The stirring time in the step 3) and the step 4) is respectively 5 minutes; in step 5) and step 6), the stirring time was 10 minutes, and the stirring speed of the stirrer was maintained at 120 rpm.
Example 2
This example differs from example 1 in that: the weight ratio of the raw materials prepared in the step 1) is as follows: the total amount of the fly ash, the combustion ash and the slag is 70 parts by weight, wherein the fly ash is 41 parts by weight; the total amount of cement and quicklime is 35 parts by weight; 25 parts of quartz sand; 8 parts of diatomite; 5 parts of gypsum powder; 8 parts of aluminum powder; the total amount of the sodium carbonate and the borax is 4 parts by weight; 0.05 part by weight of sodium metasilicate pentahydrate and 0 part by weight of sodium silicate and 4 parts by weight of sodium silicate; 0.05 part by weight of total amount of calcium nitrate; 0.05 part by weight of sodium lignin sulfonate; wherein the cement is 425 ordinary silica cement.
In this application, 425 ordinary silica cement that cement chose for use, comprehensive casting stability, body hardening speed and goods intensity, 425 ordinary silica cement can both reach the operation requirement. If 325 slag cement is selected, the amount of cement used needs to be greatly increased.
In the step 7), the stirring time before adding the aluminum powder is 10 minutes, and the stirring time after adding the aluminum powder is 20 seconds; in step 9), the stirring time before the addition of the aluminum powder was 10 minutes, and the stirring time after the addition of the aluminum powder was 20 seconds.
In this application, the churning time after adding the aluminite powder shortens to 20 seconds, prevents that the aluminium powder from sending out gas too early at the stirring in-process for the bubble structure receives destruction, influences ALC and evaporates the structure of pressing aerated concrete board.
In step 8), the casting temperature is kept at 45 ℃; in step 10), the casting temperature is maintained at 45 degrees celsius.
In the step 12), the autoclave curing time is 20 hours, the autoclave temperature is 170 ℃, and the autoclave pressure is 3 MPa; and 2) grinding the slag, the fly ash, the combustion ash and the quicklime to a particle size of 0.04 mm, wherein the sintering time is 50 minutes and the sintering temperature is 1200 ℃.
The stirring time in the step 3) and the step 4) is respectively 5 minutes; in step 5) and step 6), the stirring time was 10 minutes, and the stirring speed of the stirrer was maintained at 150 rpm.
Example 3
This example differs from examples 1 and 2 in that: the weight ratio of the raw materials prepared in the step 1) is as follows: the total amount of the fly ash, the combustion ash and the slag is 69 parts by weight, wherein the fly ash is 42 parts by weight; the total amount of cement and quicklime is 33 parts by weight; 23 parts of quartz sand; 7 parts of diatomite; 4 parts of gypsum powder; 8 parts of aluminum powder; the total amount of the sodium carbonate and the borax is 4 parts by weight; 0.05 part by weight of sodium metasilicate pentahydrate and 0 part by weight and 36 parts by weight of sodium silicate; the total amount of calcium nitrate is 0.045 parts by weight; 0.05 part by weight of sodium lignin sulfonate; wherein the cement is 425 ordinary silica cement.
In this application, 425 ordinary silica cement that cement chose for use, comprehensive casting stability, body hardening speed and goods intensity, 425 ordinary silica cement can both reach the operation requirement. If 325 slag cement is selected, the amount of cement used needs to be greatly increased.
In step 8), the casting temperature is kept at 42 ℃; in step 10), the casting temperature is maintained at 43 degrees celsius.
In the step 12), the autoclave curing time is 17 hours, the autoclave temperature is 1605 ℃, and the autoclave pressure is 2.4 MPa; in the step 2), the slag, the fly ash, the burning ash and the quicklime are ground to be 0.035 mm in particle size, the sintering time is 50 minutes, and the sintering temperature is 1200 ℃.
The stirring time in the step 3) and the step 4) is respectively 5 minutes; in step 5) and step 6), the stirring time was 10 minutes, and the stirring speed of the stirrer was maintained at 140 rpm.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.
Claims (10)
1. The ALC autoclaved aerated concrete slab is characterized in that: the anti-crack concrete slab comprises a concrete slab body (1), wherein the concrete slab body (1) comprises a core plate (2) and two face plates (3), the core plate (2) is arranged between the two face plates (3), the core plate (2) and the face plates (3) are made of autoclaved aerated concrete materials, a plurality of steel fiber anti-crack fiber strips are arranged in the core plate (2), and the face plates (3) contain basalt anti-crack fiber strips; the surface area of the surface of the face plate (3) facing the core plate (2) is greater than the surface area of the surface of the core plate (2) facing the face plate (3); the surface of the panel (3) facing the core plate (2) is provided with an embedded groove (4), the embedded groove (4) is arranged in the middle of the surface of the panel (3) facing the core plate (2), and the core plate (2) is inserted into the embedded groove (4); be provided with horizontal grout hole (5) and a plurality of vertical grout hole (6) in core (2), parallel arrangement and perpendicular to horizontal grout hole (5) between vertical grout hole (6), vertical grout hole (6) and horizontal grout hole (5) intercommunication, horizontal grout hole (5), vertical grout hole (6) are on a parallel with panel (3) and set up, and the tip opening of vertical grout hole (6), the tip opening of horizontal grout hole (5) set up on the side surface of core (2).
2. The ALC autoclaved aerated concrete panel of claim 1, wherein: evenly be provided with a plurality of inside steel bar stock (7) in core (2), inside steel bar stock (7) perpendicular to panel (3) set up, and the both ends of inside steel bar stock (7) are outstanding in core (2) surface and are set up in panel (3), inlay and be provided with reinforcing bar groove (9) that are used for holding inside steel bar stock (7) in recess (4).
3. The method for preparing the ALC autoclaved aerated concrete panel of claims 1-2, characterized in that: the method comprises the following steps:
1) preparing all raw materials, wherein the raw materials comprise fly ash, combustion ash, slag, cement, quick lime, quartz sand, diatomite, gypsum powder, aluminum powder, soda ash, borax, sodium metasilicate pentahydrate, sodium silicate, calcium nitrate and sodium lignosulfonate; levigating quartz sand in a wet-milling mode to form a first slurry; mixing slag, fly ash and combustion ash, and then grinding in a dry grinding mode; grinding quicklime in a dry grinding mode;
2) stirring and mixing the slag, the fly ash, the combustion ash and the quick lime which are ground in the step 1) and then sintering;
3) adding water into sodium silicate and calcium nitrate respectively, and stirring uniformly to form a sodium silicate water-soluble material and a calcium nitrate water-soluble material;
4) stirring and mixing a sodium silicate water-soluble material and a calcium nitrate water-soluble material; adding sodium lignosulfonate in the process of stirring and mixing the sodium silicate water-soluble material and the calcium nitrate water-soluble material, adding the sodium lignosulfonate, and continuously stirring for a period of time;
5) adding the mixed slurry I prepared in the step 1) into a stirrer, adding cement and water into the stirrer and continuously stirring;
6) after the step 5), adding the slag, the fly ash, the burning ash and the quick lime sintered in the step 2) into a stirrer, then adding diatomite and continuously stirring;
7) after the step 6) is finished, sequentially adding steel fiber anti-crack fiber strips, soda ash, borax, gypsum powder, sodium metasilicate pentahydrate and aluminum powder into a stirrer, and continuously stirring in the adding process to obtain concrete slurry II;
8) preparing a forming die of the core plate (2), pouring the concrete slurry II after the step 7) into the forming die of the core plate (2), and then sequentially carrying out temperature-rise pre-curing, demoulding and cutting to obtain a core plate block material of the core plate (2);
9) repeating the steps 1) to 6), then sequentially adding basalt anti-crack fiber strips, soda ash, borax, gypsum powder, sodium metasilicate pentahydrate and aluminum powder into a stirrer, and continuously stirring in the adding process to obtain concrete slurry III;
10) preparing a forming die of the panel (3), pouring the concrete slurry III obtained in the step 9) into the forming die of the panel (3), and then sequentially carrying out temperature-rising pre-curing, demoulding and cutting to obtain a panel block material of the panel (3);
11) smearing concrete slurry III on the inner surface of the inlaying groove (4) of the panel block material obtained after the step 10) is finished, and placing the core plate block material in the inlaying groove (4) to form a plate body material;
12) putting the plate body material obtained in the step 11) into an autoclave for autoclave curing, and then cooling to obtain the ALC autoclaved aerated concrete slab.
4. The preparation method of the ALC autoclaved aerated concrete slab according to claim 3, characterized in that: the weight ratio of the raw materials prepared in the step 1) is as follows: the total amount of the fly ash, the combustion ash and the slag is 65-70 parts by weight, wherein the fly ash is at least 40 parts by weight; the total amount of cement and quicklime is 30-35 parts by weight; 20-25 parts of quartz sand; 5-8 parts of diatomite; 3-5 parts of gypsum powder; 8 parts of aluminum powder; the total amount of the sodium carbonate and the borax is 4 parts by weight; 0.05 part of sodium metasilicate pentahydrate, 0 part of sodium silicate, 3-0 part of sodium silicate and 4 parts of sodium metasilicate; 0.04 to 0.05 weight part of calcium nitrate; 0.05 part by weight of sodium lignin sulfonate; wherein the cement is 425 ordinary silica cement.
5. The preparation method of the ALC autoclaved aerated concrete slab as set forth in claim 4, characterized in that: the weight ratio of the raw materials prepared in the step 1) is as follows: the total amount of the fly ash, the combustion ash and the slag is 68 parts by weight, wherein the fly ash accounts for 40 parts by weight; the total amount of the cement and the quicklime is 32 parts by weight, wherein the cement is 15 parts by weight; 22 parts of quartz sand; 6 parts of diatomite; 4 parts of gypsum powder; 8 parts of aluminum powder; the total amount of the sodium carbonate and the borax is 4 parts by weight, wherein the sodium carbonate is 2 parts by weight; 0.05 part by weight of sodium metasilicate pentahydrate and 0 part by weight of sodium silicate and 4 parts by weight of sodium silicate; the total amount of calcium nitrate is 0.04 parts by weight; 0.05 part by weight of sodium lignin sulfonate.
6. The preparation method of the ALC autoclaved aerated concrete slab according to claim 3, characterized in that: in the step 7), the stirring time before adding the aluminum powder is 10 minutes, and the stirring time after adding the aluminum powder is 20 seconds; in step 9), the stirring time before the addition of the aluminum powder was 10 minutes, and the stirring time after the addition of the aluminum powder was 20 seconds.
7. The preparation method of the ALC autoclaved aerated concrete slab according to claim 3, characterized in that: in the step 8), the pouring temperature is kept at 40-45 ℃; specifically, in the step 8), the pouring temperature is kept at 45 ℃; in the step 10), the casting temperature is kept at 40-45 ℃; specifically, in step 10), the casting temperature is maintained at 45 degrees celsius.
8. The preparation method of the ALC autoclaved aerated concrete slab according to claim 3, characterized in that: in the step 7), sampling and measuring the consistency before adding the aluminum powder, and adding the aluminum powder after the consistency of the slurry reaches the standard; in the step 9), sampling and measuring the consistency before adding the aluminum powder, and adding the aluminum powder after the consistency of the slurry reaches the standard; the method for measuring the consistency by sampling comprises the following steps: vertically placing a steel pipe with the diameter of 50mm, the height of 100mm and a smooth inner wall on plate glass, injecting the slurry without aluminum powder in the step 9) into the steel pipe, quickly lifting the steel pipe vertical to the plate glass to enable a distance between the lower end of the steel pipe and the plate glass to be larger than 2 cm and smaller than 10 cm, and measuring the diameter of a collapse surface of the slurry flowing onto the plate glass; and within 3 seconds after the slurry flows onto the flat glass, the diameter of the collapsed surface of the slurry on the flat glass is less than 100mm, and the consistency of the slurry reaches the standard.
9. The preparation method of the ALC autoclaved aerated concrete slab according to claim 3, characterized in that: in the step 12), the steam pressure curing time is 14-20 hours, the steam pressure temperature is 160-170 ℃, and the steam pressure is 2-3 MPa; and 2) grinding the slag, the fly ash, the combustion ash and the quicklime to a particle size of less than or equal to 0.05 mm, wherein the sintering time is 50 minutes and the sintering temperature is 1200 ℃.
10. The preparation method of the ALC autoclaved aerated concrete slab according to claim 3, characterized in that: the stirring time in the step 3) and the step 4) is respectively 5 minutes; in the step 5) and the step 6), the stirring time is 10 minutes respectively, and the stirring speed of the stirrer is kept at 120-150 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300093.5A CN111516120A (en) | 2020-04-16 | 2020-04-16 | ALC autoclaved aerated concrete slab and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300093.5A CN111516120A (en) | 2020-04-16 | 2020-04-16 | ALC autoclaved aerated concrete slab and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111516120A true CN111516120A (en) | 2020-08-11 |
Family
ID=71904175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010300093.5A Pending CN111516120A (en) | 2020-04-16 | 2020-04-16 | ALC autoclaved aerated concrete slab and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111516120A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1181511A (en) * | 1997-09-12 | 1999-03-26 | Matsushita Refrig Co Ltd | Vacuum thermal insulating body, refrigerator, thermal insulating panel and manufacture of vacuum thermal insulating body |
| CN1391017A (en) * | 2002-06-18 | 2003-01-15 | 李顺安 | Light-weight small building block as sandwich of wall and its production method |
| CN103541488A (en) * | 2013-10-25 | 2014-01-29 | 黄海涛 | Calcium silicate board veneered light-weight wallboard and preparation method thereof |
| CN105016698A (en) * | 2015-07-17 | 2015-11-04 | 山东益丰生化环保股份有限公司盛源新型建材分公司 | Composite autoclaved aerated concrete block and preparation method thereof |
| CN205421683U (en) * | 2016-03-31 | 2016-08-03 | 山东易通建材有限公司 | Porous pit evaporates presses aerated concrete insulation block |
| CN107044188A (en) * | 2017-01-19 | 2017-08-15 | 北京工业大学 | A kind of Light trabses of crack resistence automatically cleaning from card-type |
| CN207469526U (en) * | 2017-11-06 | 2018-06-08 | 确山县久华住宅工业有限责任公司 | One kind is exempted to build assembled filling wall by laying bricks or stones |
| CN208501480U (en) * | 2018-04-23 | 2019-02-15 | 宁波大学 | A kind of prestressing force bridge floor continuation apparatus that waterproof is durable |
-
2020
- 2020-04-16 CN CN202010300093.5A patent/CN111516120A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1181511A (en) * | 1997-09-12 | 1999-03-26 | Matsushita Refrig Co Ltd | Vacuum thermal insulating body, refrigerator, thermal insulating panel and manufacture of vacuum thermal insulating body |
| CN1391017A (en) * | 2002-06-18 | 2003-01-15 | 李顺安 | Light-weight small building block as sandwich of wall and its production method |
| CN103541488A (en) * | 2013-10-25 | 2014-01-29 | 黄海涛 | Calcium silicate board veneered light-weight wallboard and preparation method thereof |
| CN105016698A (en) * | 2015-07-17 | 2015-11-04 | 山东益丰生化环保股份有限公司盛源新型建材分公司 | Composite autoclaved aerated concrete block and preparation method thereof |
| CN205421683U (en) * | 2016-03-31 | 2016-08-03 | 山东易通建材有限公司 | Porous pit evaporates presses aerated concrete insulation block |
| CN107044188A (en) * | 2017-01-19 | 2017-08-15 | 北京工业大学 | A kind of Light trabses of crack resistence automatically cleaning from card-type |
| CN207469526U (en) * | 2017-11-06 | 2018-06-08 | 确山县久华住宅工业有限责任公司 | One kind is exempted to build assembled filling wall by laying bricks or stones |
| CN208501480U (en) * | 2018-04-23 | 2019-02-15 | 宁波大学 | A kind of prestressing force bridge floor continuation apparatus that waterproof is durable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103342531B (en) | Building exterior wall thermal insulation material and preparation process thereof | |
| CN109400076B (en) | High-strength concrete and preparation process thereof | |
| CN103015574A (en) | Form-removal-free cast-in-place light-weight insulated wall and construction method thereof | |
| CN101475345A (en) | Cement based polymer heat preserving dry powder mortar and using method thereof | |
| CN105152598B (en) | A kind of rack type ceramsite foam concrete and preparation method thereof | |
| CN107313531A (en) | A kind of assembled integral shear wall connecting node and its system and its construction technology | |
| CN105439628A (en) | Refractory thermal-insulation aerated brick and preparation method thereof | |
| CN109776057A (en) | A kind of foamed heat insulating plate material and preparation method thereof for upright mould process production | |
| CN114873965B (en) | Joint mortar for improving durability of new and old concrete joint surfaces | |
| CN104831862A (en) | Fiber-reinforced concrete composite thermal insulation permanent template | |
| CN107869116A (en) | A kind of light-weight thermal-insulating and sound-insulating batten and preparation method thereof | |
| CN101492280A (en) | Phosphate cellular concrete and process for producing its product | |
| CN112341140B (en) | Assembled building wet joint concrete interface agent and preparation method thereof | |
| CN102050609B (en) | Honeycomb foam material for wall | |
| CN101913903B (en) | Aerated concrete block and preparation method thereof | |
| CN109572090B (en) | Thermal insulation material and preparation method thereof | |
| CN111516120A (en) | ALC autoclaved aerated concrete slab and preparation method thereof | |
| CN103979862A (en) | Energy-saving and environmental-protection material, preparation method and application of energy-saving and environmental-protection material in building system | |
| CN207194226U (en) | A kind of assembled integral shear wall connecting node | |
| CN101538167A (en) | Porous concrete mixture and products and preparation method thereof | |
| CN116813267A (en) | Quick-hardening quick-setting high-strength adhesive mortar for assembled concrete composite wallboard | |
| CN104961409B (en) | Cast self-thermal-insulation wall doped with iron tailings and manufacturing method | |
| CN113715160A (en) | Production process of high-strength aerated concrete slab | |
| RU174634U1 (en) | INSULATING FACING PLATE | |
| CN203373872U (en) | Cast-in-place concrete self-warm-keeping wall with dismounting-free outer formworks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |