Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, Huaiyang indoor environment testing, qualification, Henan Province is the first place since the adoption of one of the detection business assessment. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratories. In construction, fugou indoor environment testing, in order to improve durability, environmental testing materials, may take the following measures in accordance with the characteristics of the material itself and causes corroded. a material in the production process: ① reduce internal porosity of the material, especially the open porosity; ② reduce material number and length of internal cracks; ③ the internal structure of the material homogenization; ④ multiphase composites should increasing the interfacial bond strength between the materials such as concrete, sand adhesive force should be increased, between stone and cement. Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, is one of the qualification place in Henan Province since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratories. ① to master "metallic materials at room temperature tensile test method" (GB / T228-2008) and steel strength grade assessment methods. ② can be obtained yield strength steel, tensile strength, elongation three indicators, and assess the strength of steel grade. (2) testing equipment ① test machine: should have the speed indicating device to record or display device, in order to meet the requirements of the mechanical properties measured. The error should be consistent with "tension, pressure, and universal testing machine" (JJG39-1999) or "non-metallic tension, pressure, and universal testing machine test procedures" (JJG157-2008) of a test machine requirements. ② steel ruler, vernier caliper, micrometer, two claws and other regulations. Environmental testing _ _ Xihua Henan malpractice detected by the indoor environment testing malpractice Henan Construction Engineering Inspection Limited. Environmental testing _ _ Xihua Henan malpractice detection indoor environment testing malpractice Henan Construction Engineering Testing Co., Ltd. (www.hnrsjc.cn) (www.rsgcjc.com) this year introduced a new upgrade, the above picture is for reference only, please call Tel or pictures on this page, for the latest information, contact: Wang Wei.