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粉刷石膏粉都有什么特性

来源: 日期:2021-11-15 发布人:juyehe

粉刷石膏是以石膏为基料,辅以抹灰性能良好的附加材料及添加剂等配制而成的。经与水拌合水化生成二水石膏晶体和少量的硫铝酸盐,这些晶体相互交叉连接,形成网络结构,使粉刷石膏浆体失去流动性而凝结,随着水化的深入,凝结后水化产物继续生成,晶体也逐渐变大,网络结构在短时间内密实,从而产生较高粘结强度及抗折与抗压强度。待粉刷石膏硬化体内的水分通过表面蒸发,和墙体吸收完全排除后,具备很高的强度。因此它具有如下特性。

Plastering gypsum is prepared with gypsum as the base material, supplemented by additional materials and additives with good plastering performance. After mixing and hydration with water, dihydrate gypsum crystals and a small amount of sulphoaluminate are generated. These crystals are cross connected to form a network structure, so that the plastering gypsum slurry loses fluidity and condenses. With the deepening of hydration, the hydration products continue to be generated after condensation, the crystals gradually become larger, and the network structure is dense in a short time, Thus, high bond strength, flexural and compressive strength are produced. After the water in the plastered gypsum hardens is completely eliminated through surface evaporation and wall absorption, it has high strength. Therefore, it has the following characteristics.
济南石膏粉
1. 具有质地细腻、光滑、不掉灰、防火性能,并有优良的防水性能的绿色产品。
1. It is a green product with fine and smooth texture, no ash falling, fire resistance and excellent waterproof performance.
2. 采用混合相型配方,级配合理、工艺先进、技术、质量稳定。
2. Mixed phase formula is adopted, with reasonable gradation, advanced technology, leading technology and stable quality.
3. 具有呼吸功能,能调节室内空气湿度,无放射性,抗菌无毒,属绿色环保建筑材料。
3. It has respiratory function and can adjust indoor air humidity. It is non radioactive, antibacterial and non-toxic. It is a green environmental protection building material.
4. 抹灰层与基层粘结牢固,不空鼓、不脱落,水化微膨胀,抑制开裂,凝结硬化快,水化过程中强度连续增长,易于手工或机械抹灰,具有施工方便、效率高,落地灰少等优点。它的粘结强度一般波动于0.5—1.5Mpa之间。
4. The plastering layer is firmly bonded with the base course, without hollowing and falling off, hydration micro expansion, inhibition of cracking, fast condensation and hardening, continuous growth of strength in the hydration process, easy for manual or mechanical plastering, and has the advantages of convenient construction, high efficiency and less floor ash. Its bond strength generally fluctuates between 0.5-1.5mpa.
5. 具有较高的强度性能,粉刷石膏随着气温的变化和通风条件变化,水份会在较短的时间内排除而凝结硬化,因此具有很好的早期强度。一般自然条件下,7d搞压强度可达到8Mpa以上,而且后期强度也会随着游离水的不断排除,而增加后期强度。实验表明,面层粉刷石膏的水膏比0.4:1的抗压强度为10Mpa,底层型粉刷石膏的配合比为,水:粉刷石膏:粗砂的重量比为0.5:0.6:1,其抗压强度可达7—8.5Mpa。粉刷石膏若与水泥混合使用强度会更高,而且施工性能良好。
5. It has high strength performance. With the change of air temperature and ventilation conditions, the water content of plastering gypsum will be removed and solidified in a short time, so it has good early strength. Under normal natural conditions, the compressive strength in 7 days can reach more than 8Mpa, and the later strength will increase with the continuous elimination of free water. The experimental results show that the compressive strength of the surface plastering gypsum is 10MPa when the water paste ratio is 0.4:1, the mix ratio of the bottom plastering gypsum is, the weight ratio of water: plastering gypsum: coarse sand is 0.5:0.6:1, and the compressive strength can reach 7-8.5mpa. If the plastering gypsum is mixed with cement, the strength will be higher and the construction performance will be good.
6. 具有隔热保温和隔音性能,粉刷石膏在凝结过程中随着水份的排除,内部产生微小的孔隙,其孔隙结构细微均匀。因此导热系数小能衰减声压,又可防止声能透射,加上石膏本身的热惰性高,故墙体散热慢,起到了隔热、隔音的作用。
6. It has thermal insulation and sound insulation performance. During the setting process, with the removal of water, the plastered gypsum will produce small pores, and its pore structure is fine and uniform. Therefore, the low thermal conductivity can attenuate the sound pressure and prevent the transmission of sound energy. In addition, the gypsum itself has high thermal inertia, so the heat dissipation of the wall is slow and plays the role of heat insulation and sound insulation.
7. 有针对性地解决了不同基层的抹灰问题,又能保持原有抹灰习惯的高性能傻瓜型抹灰材料,装饰效果好。
7. It is a high-performance fool type plastering material that can solve the plastering problems of different base courses and maintain the original plastering habit, with good decorative effect.
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