Establishment method of concrete compression strength curve

A technology of concrete strength and compressive strength, which is applied in the direction of analyzing solids by using sound waves/ultrasonic waves/infrasonic waves to achieve good operability

Inactive Publication Date: 2014-12-31
HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0002] At present, the country adopts a unified ultrasonic rebound method to test the concrete compressive strength curve. However, due to the great differences in raw materials, climatic conditions and construction techniques in different regions, the strength value derived from the national stre

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  • Establishment method of concrete compression strength curve

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[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] The present invention takes the establishment method of the concrete compressive strength curve in Yueyang area as a specific embodiment, and further describes the present invention in detail.

[0019] The establishment method of the concrete compressive strength curve adopts the new standard ultrasonic rebound comprehensive method to detect the concrete strength, and establishes the local special curve for the ultrasonic rebound comprehensive method to detect the concrete compressive strength through experiments and data statistical analysis, and obtains the ultrasonic rebound comprehensive ...

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Abstract

The invention discloses an establishment method of a concrete compression strength curve. The establishment method of the concrete compression strength curve comprises the following steps: adopting a new standard ultrasonic rebound comprehensive method to detect concrete strength, and establishing a locally dedicated curve of the concrete compression strength detected by the ultrasonic rebound comprehensive method through experiments and statistical analysis of data so as to obtain an ultrasonic rebound detected strength regression formula. The locally dedicated curve for the concrete compression strength which is legally detected by the local ultrasonic rebound comprehensive method is established; the curve is more reliable than the nationally unified strength measurement curve, and significant for increasing the detection level; the curve shows a good linear relation with a sound velocity by a level detection method; furthermore, by the level detection method, in the practical application, only one side is detected to avoid the difficulty that centering is not accurate and the other side cannot be tested, and the establishment is better in operation; the detected flat detection sound velocity is corrected in proportionality coefficient, and then substituted in the locally strength measurement formula to presume the strength value, so that the problem that the strength of the concrete member is detected by the level detection method is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to a method for establishing a concrete compressive strength curve. Background technique [0002] At present, the country adopts a unified ultrasonic rebound method to test the concrete compressive strength curve. However, due to the great differences in raw materials, climatic conditions and construction techniques in different regions, the strength value derived from the national strength measurement curve in each region is different from the actual value. There is a large difference between the strength values, so the establishment of the strength measurement curve by the local comprehensive method has obvious practical engineering significance and practical application value. Contents of the invention [0003] The object of the present invention is to provide a method for establishing a concrete compressive strength curve, aiming at establishing a local comprehens...

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Application Information

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IPC IPC(8): G01N29/04G01N29/07
Inventor 胡卫东祝新念
Owner HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY
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