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钢筋在混凝土中承受拉力和给结构以延性,弥补混凝土抗拉能力差、易开裂和脆断的缺陷。因此混凝土中的钢筋成为工程质量鉴定和验收的必检项目。《混凝土中钢筋检测技术规程》(JGJ/T152-2008)对混凝土保护层厚度、钢筋的间距、钢筋直径和其锈蚀性状做了检测技术的规定。
Reinforcement in concrete to withstand tension and ductility to the structure to make up for concrete tensile strength is poor, easy to crack and brittle fracture defects. Therefore, the steel in the concrete has become an indispensable item for engineering quality appraisal and acceptance. Technical Specification for Testing of Reinforcing Steel in Concrete (JGJ / T152-2008) Provisions are made on the testing techniques for the thickness of concrete cover, the spacing of reinforcing bars, the diameter of reinforcing bars and their corrosion properties.