Lightweight wallboard is the abbreviation of light partition batten for building in GB/T23451-2009Lightweight materialsOr it is made of light structure, with tenons and joint grooves on both sides, and the surface density is not greater than the standard value (90kg/㎡: 90 boards, 110kg/㎡: 120 boards). The raw materials used for the prefabricated battens of non load bearing interior partitions of industrial and civil buildings should comply with JG/T169-2016 standard.
1. Hollow batten (code: K) - prefabricated batten with several holes along the length of the slab.
2. Solid batten (code: S) - prefabricated batten without holes made of similar materials.
3. Composite batten (code: F) - prefabricated batten composed of two or more different functional materials.
By component type
1. Ordinary plate (code: PB) 2. Door and window frame plate (code: MCB)
3. Special shaped plate (code: YB)
Specifications
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Length dimension (L):
Generally, it is not more than 3.3m, which is the floor height minus the thickness of the structural members at the top of the floor and the size of the technical processing space. It can also be determined by the supplier and the demander through consultation.
Width dimension (B):
The main specification is 600mm
Thickness dimension (T):
The main specifications are 90mm, 100mm, 120mm, 150, etc.
The product is made of cement as bonding material, industrial slag, fly ash, pozzolanic ash, polypropylene fiber, foamed perlite and other additives, and chemical additives are mixed evenly and molded by mold casting. The length is cut according to the project needs and then used in buildings.
Advantages: light weight, fire prevention and low cost.
Disadvantages: grid cloth and secondary plastering are required for connection.
Solid batten (code: S)
The product is made of cement as bonding material, industrial slag, fly ash, mesh cloth, foamed polystyrene particles, etc. as adding materials, chemical additives added, stirred evenly, and molded by mold casting. The length is cut according to the project needs, and then used in buildings.
Advantages: light weight, fireproof, planable, chiselable, nailable, etc., and can be directly puttied for decoration.Disadvantages: grid cloth and secondary plastering are required for connection, which is costly.
The product is made of cement as the bonding material, industrial slag, fly ash, building waste, light aggregate (foamed polystyrene particles, light ceramsite, vitrified beads), etc. as the additive, and chemical additives are mixed evenly and molded by mold casting.
Lightweight energy-saving wallboard, structure: silicic acid cover plate (both sides)+flame retardantThermal insulation material(Sandwich), and the side is of standard clamp design.
Advantages: light weight, energy saving, environmental protection, sound insulation, heat insulation, waterproof, fireproof, heat preservation, antifreeze, shockproof, increased use area, long service life, etc;It is easy to install and has good processing performance. It can be sawed, planed, nailed, drilled, glued, and connected. It can be drilled without deformation, and can reduce wet operation. It is fast in construction and can be directly decorated without plastering.
Disadvantages: The size and height are limited by the panel, the general height is 2.44m, and the width is 0.61m.
Relevant national policies
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Encouraged development
（1） Plate
onePaper faced gypsum board(Industrial by-product gypsum as raw material) must meet the technical requirements of GB/T9775-2008. With industrial by-product gypsum as the main raw material, its single line annual production scale is 30 million square meters and above.
2. The light partition slats for buildings, ash concrete hollow partition panels, and glass fiber reinforced cement light porous partition slats must meet the technical requirements of GB/T23451-2009, GB/T23449-2009, and GB/T19631-2005. Mechanized production is adopted, and the annual production scale of a single line is ≥ 150000 square meters.
3. Fiber cement sandwichComposite wallboardIt must meet the technical requirements of JC/T1055-2007, adopt the production process of group formwork erection, and the production line with an annual production scale of 500000 square meters and above.
fourGypsum hollow batten(Industrial by-product gypsum as raw material), which must meet the technical requirements of JC/T829-2010, adopts mechanized production, and has an annual production scale of 150000 square meters and above.
fiveAutoclaved aerated concrete slabIt must meet the technical requirements of GB15762-2008, with an annual production scale of 200000 cubic meters and above.
6. The metal faced thermal insulation sandwich panel for building must meet the technical requirements of GB/T23932-2009,Thermal insulation materialIt must meet the relevant national fire safety requirements, with an annual production scale of 500000 square meters and above.
7. Steel wire mesh cementPolystyrene sandwich boardSteel wire mesh frame molding for large formwork built-in external wall external insulation systemPolystyrene boardIt must meet the technical requirements of JC623-1996 and GB26540-2011, and the polystyrene sandwich board must meet the relevant national fire safety requirements, with an annual production scale of 200000 square meters and above.
9. The U-shaped glass used for building (with waste glass as raw material) must meet the technical requirements of JC/T867-2000, 06J505-1, 11J508 structural atlas. With waste glass as raw material, the production line with an annual production scale of 600000 square meters and above must meet the technical requirements of JC/T867-2000, 06J505-1, 11J508 structural atlas.
10. The glass fiber reinforced cement exterior wall panel must meet the technical requirements of JC/T1057-2007 toAlkali resistant glass fiberLow alkalinity cement is used as raw material and mechanized spray molding process is adopted. The annual production scale is 200000 square meters and above.
11. Sintered decorative panels for curtain walls must meet the technical requirements of GB ×××××× - 201 × which is being submitted for approval.
12. Fiber reinforced cementExterior wall decorative hanging plateIt must meet the technical requirements of JC/T 2085-2011, and its single line annual production scale is 600000 square meters and above.
（2） Blocks
1. Sintered porous blocks, sintered hollow blocks, sintered thermal insulation blocks and sintered composite thermal insulation blocks made of coal gangue, fly ash, shale, building foundation pit soil, building slag, rivers, lakes (canals), sea sludge, sludge, soil and hill and waste slope soil leveling for construction land must meet the requirements of GB13544-2011According to the technical requirements of GB13545-2003 and GB26538-2011, after the fine processing of raw materials (including the construction of aging warehouses), more than 55 brick forming machines, manual drying, automatic stacking and unloading, tunnel kilns with a section of more than 4.6 meters, and automatic temperature control, the annual production scale of a single line is 60 million standard bricks and above.
2. Ordinary concrete small hollow blockLightweight aggregate concrete small hollow blockDecorative concrete blocks and concrete composite thermal insulation blocks must meet the requirements of GB8239-1997GB/T15229-2011, JC/T T641-2008 technical requirements, forming host power is more than 40kW, vibration frequency is more than 55HZ, amplitude is 1.2~1.5mm, automatic metering batching, manual curing (including solar curing), mechanical billet system, production scale, single machine, single shift, annual production scale of 60000 cubic meters and above production line.
threeAutoclaved aerated concrete blocks It must meet the technical requirements of GB11968-2006, use a cutting machine of more than 4.2 meters, and use a production line with an annual production scale of 200000 cubic meters or more.
4. Gypsum (hollow) blocks (industrial by-product gypsum as raw material) must meet the technical requirements of JC/T698-2010, be formed by automatic production process, and have an annual single line production scale of 300000 square meters and above.
（3） Bricks
1. Sintered porous bricks made of coal gangue, fly ash, shale, building slag, building foundation pit soil, river, lake (canal) and sea sludge, sludge, soil leveling for construction land, hills, waste slope soil, etcSintered hollow brick, sintered insulation brickSintered composite insulation brickSintered pavement bricks must meet the technical requirements of GB13544-2011, GB13545-2003, GB26538-2011, GB/T29060, and GB/T26001-2010. After the fine processing of raw materials (including the construction of aging warehouses), brick forming machines of more than 55 models, manual drying, automatic stacking and unloading, tunnel kilns with a section of more than 4.6 meters, and automatic temperature control, the production line with a single line annual production scale of 60 million standard bricks and above has been established.
2. Autoclaved lime sand perforated brick and autoclaved fly ash perforated brick must meet the technical requirements of JC/T637-2009 and GB26541-2011, and adopt two-wayHydroforming machineThe production line with a nominal pressure of more than 8000kN, automatic metering and batching, and an annual production scale of 60 million standard bricks and above.
3. Concrete bricks for roads must meet the technical requirements of JC/T446-2000. The molding host power is more than 40 kW, the vibration frequency is more than 55HZ, and the amplitude is 1.2~1.5mm. The automatic metering and batching, manual maintenance (including solar energy maintenance), mechanical billet, and the production line with a single machine and a single shift annual production capacity of more than 30 million standard bricks are used.
fourComposite insulation brickThe production line must meet the technical requirements of GB/T29060-2012.
fiveSintered decorative brickRefer to the production line in accordance with the technical requirements of GB13544-2011 and GB13545-2003.
6. Sintered tiles must meet the technical requirements of GB/T21149-2007. They are made of coal gangue, fly ash, shale, building waste soil, building foundation pit soil, rivers, lakes (canals) and sea sludge, sludge, leveling earth, hills and waste slope soil for construction land, etc., and have undergone fine processing of raw materials (including the construction of aging warehouses), extrusion molding machines, tile presses, automatic stacking and unloading, manual dryingTunnel kiln roasting, automatic temperature control, production line with an annual production scale of 5 million pieces or more.
Restricted class
（1） Plate
1. Production lines of various slats and composite boards with an annual production scale of less than 150000 square meters.
2. Various fiber cement slab production lines with an annual production scale of less than 8 million square meters.
1. The power of the forming host is less than 40kW, the vibration frequency is less than 55HZ, the amplitude is more than 2.0mm, and there is no automatic metering for batching, no curing room (kiln), and the annual production scale of a single machine per shift is less than 50000 cubic meters of concreteBlock production line。
2. Autoclaved aerated concrete block production line with an annual production capacity of less than 200000 cubic meters.(Excluding economically underdeveloped areas and remote areas)
3. Gypsum block production line with low mechanization and single line annual production scale of less than 500000 square meters.
4. Fired ceramisite production line with an annual production scale of less than 50000 cubic meters.
（3） Bricks
1. If the content of shale or various waste residues (soil) in the raw materials is less than 70%, the brick extruder of 45 type or below shall be used to produce various sintered bricks and sintered hollow blocks with an annual production scale of less than 30 million standard bricks in a single line.
3. Fired ceramisite production line with an annual production scale of less than 50000 cubic meters.
4. The power of forming host is less than 40kW, the vibration frequency is less than 55HZ, the amplitude is more than 2.0mm, the batching is not automatically measured, there is no curing room (kiln), and the annual production scale of a single machine per shift is less than 30 million standard bricksConcrete solid brickNon bearing concrete hollow brick, bearing concrete perforated brickDecorative concreteBricks andConcrete pavement brickproduction line.
Obsolescence
（1） Plate
1. Production lines for various handmade wallboards.
2. Glass fiber reinforced cement hollow batten production line using non alkali resistant glass fiber and non low alkalinity cement.
3. Paper faced gypsum board production line with an annual output of 10 million square meters or less.
（2） Blocks
1. The clay sintered block production line, which mainly uses the soil that destroys farmland, cultivated land and environment as the raw material.
2. The power of forming host is less than 20kW, and the vibration frequency is less than 40HZ. Simple mobile type is adoptedconcrete block making machine Or attached vibration forming table, a concrete block production line with an annual production capacity of less than 25000 cubic meters per machine per shift.
3. Autoclaved aerated concrete block production line with an annual production capacity of less than 100000 cubic meters;Manual cutting or pre laying steel wire autoclave curingAerated concrete production line；Non autoclavedAerated concrete blockproduction line.
4. Ceramsite production line with clay as raw material (except Shaanxi, Qinghai, Gansu, Xinjiang, Tibet and Ningxia).
5. It does not conform to the national industrial policy, and in the urban planning area, ecological protection areaScenic AttractionThe production line of fired brick kiln within the scope of cultural relics and historic sites protection zone, basic farmland protection zone and the visible scope along national roads, provincial roads, railways and expressways.
6. Autoclaved lime sand brick and autoclaved fly ash brick production line with molding machine less than 200t (excluding) and disc rotary brick pressing.
7. Non sintered and non autoclaved fly ash brick production line.
8. The forming host power is less than 20 kW, the vibration frequency is below 40HZ, the annual production scale of a single machine per shift is less than 25000 cubic meters, and the concrete brick production line using simple mobile forming machine or attached vibration forming table.
Characteristics of lightweight wallboard
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01 Environmental protection
The raw materials used for lightweight energy-saving wall materials are 100% free of harmful substances to human body and radioactive products, and comply with relevant national standards.
02 Fire prevention
The fire resistance limit of lightweight energy-saving wall material under the high temperature of 1000 ℃ exceeds 4 hours, and it does not emit toxic gas, and its non combustible performance reaches the national A-level standard.
03 Increase the use area
The lightweight energy-saving wall material is generally 75mm, which is 85mm less than the thickness of 120 brick wall. That is to say, the energy-saving lightweight wall panel can increase the use area by 1m for every 11.8m extension.
04 Good overall
Due to the fabricated construction, the body is in a three in one structure, and the plates are connected as a whole. The impact resistance is 1.5 times that of ordinary masonry;Anchored by steel structure, the wall has high strength and can be used as a partition wall with high story height and large span. The overall seismic performance is many times higher than that of ordinary masonry walls.The composite wallboard partition system has a compact structure, good integrity, no deformation, and the wall is not easy to loosen, with good seismic resistance.
05 Damp proof and waterproof
The experiment proves that the wall can be filled with water by bonding the pool body with cement without any waterproof facing, and the back of the wall can be kept dry without leaving traces, and condensation drops will not appear in wet weather.The panel of the wallboard is a professional waterproof board, which has good waterproof and moisture-proof performance, and can be used in wet areas such as kitchens, bathrooms, basements, etc.
06 Sound insulation
The cement fiber of lightweight energy-saving wallboard and its internal constituent materials all have good sound insulation effect. The sound insulation amount of 90mm thick wallboard is 43dB, and its sound insulation effect meets the sound insulation requirements of national housing, which is much higher than that of other brick walls.
07 Simple and fast
The lightweight energy-saving wallboard is completely dry work and fabricated construction. The wallboard can be cut and adjusted in width and length at will.During construction, the transportation is simple, the stacking is sanitary, and there is no need for mortar batching, which greatly shortens the construction period, and the material loss rate is low, reducing construction waste.
08 Light economy
The weight of 75mm thick lightweight energy-saving wallboard is equivalent to 1/7 of the weight of 120mm thick masonry, thus reducing the structural cost and increasing the use area.The construction is simple and convenient, reduces labor intensity, speeds up the construction progress, saves 15-30% of the total project cost, and meets the requirements of different customers for the indoor and outdoor environment of modern buildings.
