Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
Interpretation of common steel fiber knowledge
Fiber is the most basic unit of constituent materials. At present, the common classification of fibers may be textile fibers, but in addition to the textile industry, other industries will also use different fiber materials. For example, the standard group will introduce a common type in this article. Steel fiber. The interface between cement matrix and aggregate in concrete is the weak link of concrete. For steel fiber concrete, the interface between cement matrix and steel fiber is often the weakest link in steel fiber concrete. The interface bond between cement stone and steel fiber Mainly physical combination. The so-called physical bonding is caused by the adhesion and mechanical meshing between the cement hydrate and the steel fiber interface. Therefore, the shape, surface condition, cross-sectional shape of the steel fiber and the material of the steel fiber have a great influence on this kind of physical bonding. . At present, the most widely used steel fibers mainly include the following: (1) Short fibers made from steel wire cutting: The production process of this type of fiber is relatively simple, and the resulting steel fiber has high tensile strength, and the disadvantage is that its surface is smooth. , Therefore, the bond strength with the concrete matrix is u200bu200blow. (2) Thin plate shearing steel fiber: The production process of this type of fiber is similar to the first type. The raw material is a thin steel plate as wide as the required fiber length, and then it is made by shearing, and the steel fiber is slightly bent during the shearing. And twisting, which can increase the bond strength. (3) Steel ingot milling steel fiber: The fiber is made by using steel ingot as raw material and cutting with a milling cutter. This fiber is characterized by axial distortion, and the surface of the fiber can be roughened by improving the cutter. In addition, the first two The surface of this fiber will be more or less sticky with impurities such as oil during the production process, and the production method of the fiber can ensure the cleanness of its surface. Therefore, the bonding strength between the steel fiber and the concrete matrix prepared by this method is higher than that of the first two steel fibers.
GESTER International Co.,Limited is committed to fulfill the demands of our customers with using textile testing equipment.
GESTER International Co.,Limited will become the destination store for customers, offering the convenience of multiple brands and channels, and providing a personal high touch shopping experience that helps create lifelong customer relationships.
Do you want to find a provider to get your textile testing equipment problem settled? If so, we suggest that you give a shot to GESTER International Co.,Limited. Visit GESTER Instruments to learn more and contact us.
The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
Quick links