What is the detection method of Shandong white linen stone

Shandong white linen stone with its beautiful texture, hard texture, in the building decoration, landscaping and other fields are widely used. However, the stone quality varies, scientific testing methods to become the key to protect its quality. Mastery of Shandong white marble stone detection methods, not only can help buyers choose to quality stone, but also help the construction side to ensure the quality of the project.

Appearance quality testing is the basic and intuitive testing links. To observe the surface of the stone whether there are cracks, trachoma, color spots, color lines and other defects. Cracks will seriously affect the strength and service life of the stone, subtle cracks can be strong flashlight irradiation to find; trachoma will destroy the flatness of the stone surface and aesthetics; and color spots, color lines will affect the overall decorative effect. Secondly, the need to check the distribution of the texture of the stone is uniform, high-quality Shandong white marble stone texture natural and smooth, no obvious abrupt differences. At the same time, but also pay attention to the surface finish of the stone, through the touch and observation, to determine whether the surface is flat, smooth, there is no grinding is not in place.

Physical properties testing is an important indicator of the quality of the stone. Density and water absorption detection is crucial, high density, low water absorption of the stone, its resistance to weathering, corrosion resistance is stronger. Weighing method can be used to measure the density of the stone, first weigh the mass of the dry stone, and then completely immersed in water, weighing the mass of saturated water absorption, through the formula to calculate the density; water absorption can be determined by measuring the change in the quality of the stone before and after the absorption of water. In addition, compressive strength and flexural strength testing is also indispensable, these two indicators determine the performance of the stone in the pressure and bending force when the performance, usually using professional pressure testing equipment for testing, simulating the actual use of the force situation.

Chemical performance testing is mainly for stone acid and alkali resistance. As Shandong white stone is often used in outdoor environments, will be subject to acid rain, chemical cleaners and other erosion, so it is necessary to test its chemical stability. Stone samples can be selected, respectively, immersed in different concentrations of acid, alkali solution, after a certain period of time, observe the changes in the surface of the stone, such as whether there is corrosion, discoloration, flaking and other phenomena, in order to determine the acid and alkali resistance of the stone. At the same time, for the stone used for interior decoration, but also need to test the content of radioactive elements to ensure that it meets national standards, to avoid harm to human health.

Size specification testing is also a part of the testing process can not be ignored. Whether the size of the stone is accurate, directly affecting the construction and installation of the effect and efficiency. Need to use vernier calipers, steel tape measure and other measuring tools, the length of the stone, width, thickness measurement, check whether its size is in line with the contract agreed standards, whether the error is within the allowable range. For some special shape requirements of the stone, such as curved, shaped stone, more carefully measure its contour dimensions to ensure accurate installation.

Shandong white stone testing covers the appearance, physical properties, chemical properties and size specifications and other aspects. Through scientific and comprehensive testing, in order to select a reliable quality of stone, so that Shandong white hemp stone in various projects to play a decorative and practical effect.