2. Gypsum plastering: The basic material is building gypsum and air hardening plastering material with additives, which is divided into bottom leveling gypsum and surface leveling gypsum. Bottom layer leveling usually contains aggregates, while surface layer leveling is usually used for finishing or thin layer leveling.
底層抹灰石膏
Bottom plastering gypsum
適用于各類內(nèi)墻墻面薄抹灰找平,不適用于潮濕、干濕循環(huán)的位置。
Suitable for thin plastering and leveling of various interior walls and surfaces, not suitable for locations with damp or wet dry cycles.
性能特點(diǎn):
Performance characteristics:
1、具有建筑石膏早強(qiáng)、防火、保溫、快干的特點(diǎn)。
1. It has the characteristics of early strength, fire resistance, insulation, and fast drying of building gypsum.
2、和易性好,施工性能優(yōu)異。
2. Good workability and excellent construction performance.
3、強(qiáng)度增長(zhǎng)快,可節(jié)省施工時(shí)間。
3. The intensity increases rapidly, which can save construction time.
4、強(qiáng)度高、不空鼓、不開裂。
4. High strength, no hollowing, no cracking.
技術(shù)指標(biāo):
Technical Indicators:
底層抹灰石膏符合GB/T28627-2012抹灰石膏要求,主要指標(biāo):
The bottom plastering gypsum meets the requirements of GB/T28627-2012 plastering gypsum, and the main indicators are:
Suitable for thin plastering and leveling of various interior walls and surfaces, used for jointing, skirting, and covering gypsum surfaces on the bottom layer. Not suitable for damp, dry wet cycles, and not suitable for scraping projects exceeding 5 millimeters.
性能特點(diǎn):
Performance characteristics:
1、綠色環(huán)保、無害無毒,粘結(jié)力強(qiáng),收縮變形小,不掉粉。
1. Green and environmentally friendly, harmless and non-toxic, strong adhesion, minimal shrinkage and deformation, and no powder loss.
3. Lightweight plastering gypsum: Lightweight plastering gypsum is a new type of plastering gypsum, which is a new, environmentally friendly, and economical plastering gypsum material that replaces cement mortar.
Lightweight gypsum mortar is a green plastering material specifically designed for indoor walls, and it is also a high-performance material for leveling the base of interior walls. Suitable for plastering and leveling the base layer of various interior walls and surfaces, but not suitable for projects with humidity, dry wet cycles, and not suitable for leveling the base layer of tiling projects.
性能特點(diǎn):
Performance characteristics:
1、隔熱、吸音、綠色環(huán)保。
1. Thermal insulation, sound absorption, and environmental friendliness.
2、粘結(jié)力強(qiáng),不脫落,收縮性小,不空鼓,不開裂。
2. Strong adhesion, no detachment, low shrinkage, no hollowing or cracking.
3、和易性好,施工方便,落地灰少,操作方便。減少損耗和提高效率。
3. Good workability, easy construction, minimal dust on the ground, and convenient operation. Reduce losses and improve efficiency.
4、強(qiáng)度增長(zhǎng)快,容易干燥,加快施工進(jìn)度,適合抹灰量大的工程。
4. Fast strength growth, easy drying, accelerates construction progress, suitable for projects with large plastering volume.
5、具有一定的吸音、隔熱效果,有助于調(diào)節(jié)室內(nèi)溫度和噪音。
5. It has certain sound absorption and insulation effects, which help regulate indoor temperature and noise.
6、輕質(zhì)、體積密度低,可明顯降低工程成本,減輕建筑載荷。
6. Lightweight and with low bulk density, it can significantly reduce engineering costs and alleviate building loads.
02
02
特點(diǎn)不同:
Different characteristics:
1、抹灰砂漿:具有良好的和易性,容易抹成均勻平整的薄層。
1. Plastering mortar: It has good workability and is easy to apply into a uniform and smooth thin layer.
2. Plastering gypsum: Plastering gypsum walls are dense, smooth, and free of dust, non-toxic, odorless, and less prone to hollowing and cracking. They have high strength without shrinkage, and have an elegant appearance, achieving advanced plastering effects.
Adopting the layered plastering process, there is a lot of plaster on the ground, the construction process is complex, the construction period is long, and the construction cost is relatively high. The cement mortar needs to have a plastering thickness of 20mm or more, and the plastering layer should be insulated, heat-insulating, flame-retardant, and durable.
Environmental protection: After harmless treatment (desulfurization, etc.), gypsum does not contain soluble pollutants. The inorganic gel materials and additives used are environmental protection products. The light plaster gypsum produced does not release harmful substances such as formaldehyde, which is green, safe and secure.
Gypsum plaster has good adhesion, is not prone to hollowing and cracking, and is easy to apply to walls. It has good fluidity and is easy to smooth Less dust on the ground.
保溫、防火:導(dǎo)熱系數(shù)低、干密度小,具有良好的保溫、防火、隔熱和隔音性能;
Insulation and Fire Protection: With low thermal conductivity and low dry density, it has excellent insulation, fire resistance, thermal insulation, and sound insulation properties;
Scope of application: Plaster plaster has strong durability and durability. Suitable for plastering, leveling, and repairing interior walls of various brick walls, concrete walls, block walls, cement walls (slabs), cast-in-place concrete walls, and prefabricated interior partition panels. Suitable for indoor wall plastering and leveling layers that are not exposed to water and moisture, but not suitable for kitchens and bathrooms. It is not recommended to stick tiles or apply putty with strong rigidity on it.
As a new type of interior wall plastering material, lightweight plastering gypsum will completely replace traditional cement mortar, which can be seen from the dominant position of lightweight plastering gypsum in indoor wall leveling in developed countries. In the United States, Germany, France, Spain and Türkiye, light plaster gypsum accounts for 90% of the total, while cement mortar accounts for less than 10%; In the UK, lightweight interior plastering gypsum accounts for 96% of the market share.
Scope of application: In addition to bathrooms and kitchens, it is suitable for plastering, leveling, and repairing various types of brick walls, concrete walls, block walls, cement walls (slabs), cast-in-place concrete walls, and prefabricated interior partition walls.
Lightweight plastering gypsum, as a new type of interior wall plastering gypsum, has the following characteristics in addition to the environmental protection and insulation features mentioned above:
Efficient: The interval between the lightweight plastering gypsum work surface and the next putty process is very short, and the efficiency is much higher than traditional mortar plastering. This saves considerable time and costs for both the owners and the general contractor.
Lightweight, large construction area, and low energy consumption: Under the same weight, the construction area of lightweight plastering gypsum is 1.6-1.8 times that of ordinary plastering gypsum, and more than twice that of traditional commodity cement plastering mortar. It can significantly save on usage, transportation capacity, costs, and production energy consumption, thereby reducing overall costs. At the same time, it can also reduce the total load of the building.
Convenient construction: Lightweight plastering gypsum can be manually applied, and workers are more labor-saving and efficient in construction compared to ordinary plastering gypsum. It can also be done by machine spraying (increasing efficiency by about 1 times), and it is also the preferred material for the punching process. Lightweight plastering gypsum has good crack resistance and is suitable for thin plastering on walls. Different construction sites have different requirements for its thickness. The thickness of wall construction is 5-20mm, with a minimum thickness of not less than 5mm, and the total thickness of top plastering should be less than 10mm. Generally speaking, in home decoration construction sites, its thickness is mostly around 10mm; Some construction sites require a thickness of 15mm.
上墻效果好:輕質(zhì)抹灰石膏材料構(gòu)成都比較細(xì)膩,上墻效果好。
Good wall effect: The lightweight plastering gypsum material composition is relatively delicate, and the wall effect is good.
抹灰石膏和輕質(zhì)抹灰石膏,
Plastering gypsum and lightweight plastering gypsum,
功能相似,那如何選擇呢?
How to choose if the functions are similar?
我們通常所說的抹灰石膏,一般是重質(zhì)石膏,而輕質(zhì)抹灰石膏通常稱之為輕抹。
The plastering gypsum we usually refer to is usually heavy gypsum, while lightweight plastering gypsum is usually called light plaster.
Heavy gypsum and light gypsum have different aggregates. Heavy gypsum aggregates are sand, while light gypsum aggregates are vitrified microbeads. Vitrified microbeads as lightweight filling aggregates have advantages such as thermal insulation, fire resistance, and sound absorption. In the building materials industry, using vitrified microbeads as lightweight aggregates can improve the workability and self strength of mortar, reduce material shrinkage, enhance product performance, and reduce overall production costs. At the same time, compared to sand, vitrified microbeads can also form a certain particle strength due to surface vitrification, and have strong aging and weather resistance, as well as excellent insulation, fire resistance, sound absorption and other properties.
石膏含量不同
Gypsum content varies
輕質(zhì)抹灰石膏要求石膏粉含量≥75%,重質(zhì)抹灰石膏要求石膏粉含量≥35%。
Lightweight plastering gypsum requires a gypsum powder content of ≥ 75%, while heavy plastering gypsum requires a gypsum powder content of ≥ 35%.
1. Different densities; The density of lightweight plastering gypsum is ≤ 1000kg/m3, and the density of heavy plastering gypsum is>1000kg/m3.
2、保水率(%);輕質(zhì)抹灰石膏保水率≥ 60%,重質(zhì)抹灰石膏保水率≥ 75%。
2. Water retention rate (%); The water retention rate of lightweight plastering gypsum is ≥ 60%, and the water retention rate of heavy-duty plastering gypsum is ≥ 75%.
3. Tensile bonding strength; The tensile bonding strength of lightweight plastering gypsum is ≥ 0.3Mpa, and the tensile bonding strength of heavy plastering gypsum is ≥ 0.4Mpa.
4. Compressive strength; The compressive strength of lightweight plastering gypsum is ≥ 1.5Mpa, and the compressive strength of heavy plastering gypsum is ≥ 4.0Mpa.
5. Flexural strength; The flexural strength of lightweight plastering gypsum is ≥ 1.0Mpa, and the flexural strength of heavy-duty plastering gypsum is ≥ 2.0Mpa.
Lightweight plastering gypsum has various characteristics such as low bulk density, convenient construction, easy transportation, non hydration when in contact with water, low cost, excellent insulation performance, moderate strength, and the ability to be mechanically sprayed. It is another upgraded product after eliminating heavy plastering gypsum. Bringing good news to developers and construction units, and providing residents with a more comfortable environment. Compared with the market, lightweight plastering gypsum can produce an area of 130 square meters per ton, which is three times that of heavy plastering gypsum, greatly improving construction efficiency and transportation costs.
Heavy plastering gypsum is mainly composed of sand, while lightweight plastering gypsum is mainly composed of gypsum. This is an intuitive understanding of the difference between heavy and light. In terms of construction thickness, heavy gypsum can be used in a single batch of about 0.6cm. If the construction thickness is too thick, it is easy to fall or crack, while lightweight gypsum is different. A single batch can reach about 1cm, and lightweight gypsum is relatively viscous and will not cause hollowing or falling.
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