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干粉砂浆容易混杂的几个概念你知道吗?

来源:https://www.jnfhjc.com 日期:2019-11-13 发布人:admin

  干粉砂浆已被广泛应用,但在应用过程中一些生产、使用和监督的概念和性能指标混淆,今天济南抹面砂浆小编为大家分析一下主要的概念如下:

  Dry powder mortar has been widely used, but in the process of application, some concepts of production, use and supervision are confused with performance indicators. Today, Jinan plastering mortar Co., Ltd. analyzes the main concepts as follows:
  1. 粘度和强度
  1. Viscosity and strength
  粘度越高,强度越高。强度通常是指砂浆凝固后的物理性能指标,粘度通常是指砂浆搅拌后的状态,是施工过程中的一个指标。粘度不一定与强度有关。
  The higher the viscosity, the higher the strength. Strength usually refers to the physical performance index of mortar after solidification, and viscosity usually refers to the state of mortar after mixing, which is an index in the construction process. Viscosity is not necessarily related to strength.
  2、粘结强度和抗压强度
  2. Bond strength and compressive strength
济南抹面砂浆
  粘结强度是指砂浆对底层的附着力。有两种抗剪强度和抗拉强度。抗拉强度是指砂浆表面抗垂直作用于表面的拉力;抗剪强度是通过施加平行力来测量的强度。
  Bond strength refers to the maximum adhesion of mortar to the bottom layer. There are two kinds of shear strength and tensile strength. The tensile strength refers to the resistance of mortar surface to the tensile force acting vertically on the surface; the shear strength refers to the strength measured by applying parallel force.
  抗压强度是指施加压力所确定的砂浆破坏的值,一般为砂浆的内聚强度。高粘结强度不一定高抗压强度,低抗压强度不一定低粘结强度。
  Compressive strength refers to the maximum value of mortar failure determined by the applied pressure, which is generally the cohesive strength of mortar. High bond strength is not necessarily high compressive strength, low compressive strength is not necessarily low bond strength.
  3.防水防水
  3. Waterproof
  防水防水概念主要在腻子产品中,防水指的是材料在水环境中的性能不发生很大变化,防水指的是水不能渗透。腻子只是在调平材料前刷上涂料,无应无防水材料性能。JG158《建筑室内用腻子》和JG157《建筑外墙用腻子》标准只规定了腻子的耐水性。观察腻子成型后在水中浸泡一定时间后,腻子层有无变化。而实际应用过程中有些企业夸大宣传,说自己生产的腻子是防水的,而有些使用单位经常询问外墙腻子是否防水。
  The concept of waterproof is mainly used in putty products. Waterproof refers to that the performance of materials in water environment does not change greatly, and waterproof refers to that water cannot penetrate. The putty is only applied with paint before leveling the material, and there shall be no waterproof material performance. JG158 putty for interior building and jg157 putty for exterior wall of building only stipulate the water resistance of putty. Observe whether the putty layer changes after soaking in water for a certain time. In the process of practical application, some enterprises exaggerate their propaganda, saying that the putty they produce is waterproof, while some users often ask whether the putty on the outer wall is waterproof.
  4. 保温隔热
  4. Thermal insulation
  隔热是砌体材料或产品在冬季防止热量损失和保持室温稳定的能力。冬季通常指围护结构(包括屋顶、外墙、门窗等),以防止热量从室内转移到室外,从而保持适当的室内温度。隔热是砌体材料或产品在夏季防止热量进入并保持室温稳定的能力。通常指的是封闭的能力,隔离辐射热的影响,从太阳和高温室外在夏季,从而保持其内部表面在一个适当的温度。我国建筑能效设计规范对不同地区建筑能效指标的规定不同,如下表所示:
  Heat insulation is the ability of masonry materials or products to prevent heat loss and maintain room temperature stability in winter. Winter usually refers to enclosure (including roof, exterior wall, doors and windows, etc.) to prevent heat transfer from indoor to outdoor, so as to maintain appropriate indoor temperature. Heat insulation is the ability of masonry materials or products to prevent heat from entering and keep room temperature stable in summer. Usually refers to the ability to close, isolate the effects of radiant heat from the sun and high temperature outdoors in summer, thus maintaining its internal surface at an appropriate temperature. China's building energy efficiency design code has different regulations on building energy efficiency indicators in different regions, as shown in the table below:
  保温与隔热的区别:
  Difference between heat preservation and heat insulation:
  (1)不同的传热过程。保温是指冬季的传热过程。它通常被认为是稳定的传热,也考虑了不稳定传热的一些影响。隔热是指夏季的传热过程,通常在24小时周期内周期性地进行传热考虑。
  (1) different heat transfer processes. Heat preservation refers to the heat transfer process in winter. It is generally considered as stable heat transfer, and some effects of unstable heat transfer are also considered. Heat insulation refers to the heat transfer process in summer, which is usually considered periodically in a 24-hour period.
  (2)评价指标不同。隔热性能通常用传热系数或传热阻力来评价。在夏季(即炎热天气),隔热性能通常是通过计算室外温度条件下围护结构内表面的温度来评估的。若围护结构内表面温度低于或等于相同条件下240mm厚砖墙(即砖墙)内表面温度,则认为满足保温要求。
  (2) different evaluation indexes. Thermal insulation performance is usually evaluated by heat transfer coefficient or heat transfer resistance. In summer (i.e. hot weather), the thermal insulation performance is usually evaluated by calculating the maximum temperature of the inner surface of the enclosure under outdoor temperature conditions. If the maximum temperature of the inner surface of the enclosure is lower than or equal to the maximum temperature of the inner surface of 240mm thick brick wall (i.e. brick wall) under the same conditions, the insulation requirements shall be considered to be met.
  (3)施工措施不同。由于保温性能主要取决于围护结构的传热系数和传热阻力的大小,由多孔轻质保温材料轻型围护结构的传热系数小,传热阻力较大,因此,保温性能好,但由于其重量轻,热稳定性较差,易受太阳辐射和室内外温度波动的影响,内表面温度升高,因此隔热性能往往较差。
  (3) different construction measures. Because the thermal insulation performance mainly depends on the heat transfer coefficient and heat transfer resistance of the enclosure, the heat transfer coefficient of the light-weight enclosure made of porous lightweight thermal insulation material is small and the heat transfer resistance is large, so the thermal insulation performance is good, but because of its light weight and poor thermal stability, it is easy to be affected by solar radiation and indoor and outdoor temperature fluctuations, and the internal surface temperature rises, so the thermal insulation performance is often poor.
  以上是济南抹面砂浆厂家为大家介绍的干粉砂浆容易混杂的几个概念的相关内容,想要了解更多内容,欢迎访问网站:https://www.jnfhjc.com
  The above are the related contents of several concepts of dry mortar easy to mix introduced by Jinan plastering mortar manufacturer. For more information, please visit the website: https://www.jnfhjc.com