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今年5月中旬,城乡建设环境保护部标准《回弹法评定混凝土抗压强度技术规程》被审定通过。该标准由陕西省建研所主编,参加编制与协作的单位共十余个,自科研到制定标准历时六年,进行了大量的试验研究与工程调查,使标准(送审稿)具有坚实的基础。其主要特点:首先规定了回弹仪的标准状态。回弹仪除需满足规定的钢砧率定值外,对仪器主要部件的质量与装配尺寸的技术参数也作了明确规定,从而构成回弹仪的标准状态,这是回弹法测强的先决条件。其次,由回弹值与碳化深度值闪个参数确定
In mid-May of this year, the Ministry of Urban and Rural Construction and Environmental Protection Standard “Technical Specification for the Evaluation of Compressive Strength of Concrete by Rebound Method” was approved. The standard was edited by the Shaanxi Provincial Institute of Construction, participated in the preparation and collaboration of a total of more than 10 units, from research to standard development for six years, conducted a large number of experimental research and engineering surveys, so that the standard (draft) has a solid basis. Its main features: First, the standard state of the hammer is specified. In addition to satisfying the specified steel anvil rate, the rebound instrument also clearly stipulates the quality of the main components of the instrument and the technical parameters of the assembly dimensions, and thus constitutes the standard state of the rebound instrument. This is the strength of the rebound method. prerequisites. Secondly, the flashback parameter is determined by the rebound value and carbonization depth value.