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Method for measuring temperature and humidity of concrete test piece under constant axial pressure load

A concrete specimen, temperature and humidity technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of less temperature and humidity measurement tests, no temperature and humidity force coupling loading device, etc., and achieve the effect of easy operation, clear steps and simple principle

Active Publication Date: 2018-04-20
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are very few temperature and humidity measurement experiments under load, and there is no specific temperature-humidity coupling loading device

Method used

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  • Method for measuring temperature and humidity of concrete test piece under constant axial pressure load
  • Method for measuring temperature and humidity of concrete test piece under constant axial pressure load
  • Method for measuring temperature and humidity of concrete test piece under constant axial pressure load

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Embodiment Construction

[0026] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the examples.

[0027] Such as figure 1 As shown, a device for measuring the temperature and humidity of concrete specimens under constant axial compression load, including: a loading frame for placing concrete specimens and loading equipment; System; a strain acquisition system used to monitor the screw strain in the pressurized zone and reflect the load maintenance situation.

[0028] The loading frame includes a pressurized base plate 1, a pressurized backing plate 2, a reaction force support plate 3, a screw rod 4 and a nut 5, and the pressurized base plate 1, the pressurized backing plate 2 and the reaction force support plate 3 are all supported by the screw rod 4, and are supported by the screw rod 4. The supporting nut 5 of corresponding position is fixed.

[0029] The concrete specimen to be tested is placed between t...

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Abstract

The invention discloses a method for measuring the temperature and humidity of a concrete test piece under a constant axial pressure load. According to the method, measurement is carried out under theeffect of a constant axial pressure load. The method has clear steps and is based on the simple principle; and the measurement process is easy to operate. The result demonstrates that the axial pressure load has the obvious impact on the relative humidity of the concrete; and at the moment of load application, the relative humidity increases instantaneously and then decreases slowly.

Description

technical field [0001] The invention relates to the technical field of concrete temperature and humidity measurement, in particular to a method for measuring the temperature and humidity of concrete specimens under the action of a constant axial compression load. Background technique [0002] In the early stage of pouring, due to the low tensile strength, obvious changes in temperature and humidity, and large shrinkage and deformation of concrete structures, serious early-age cracks often occur. The temperature and humidity inside concrete is an important indicator for predicting early cracking. Therefore, accurate measurement of early temperature and humidity can provide reliable support for early temperature and humidity transmission theory and crack resistance research. Based on this, a large number of researchers at home and abroad have carried out experimental research on the early temperature and humidity of concrete, and used various temperature and humidity probes to...

Claims

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Application Information

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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 赵海涛杨睿黄煜煜陈晓东万意吴霞孔高扬蒋凯迪贾瑞明李士海
Owner HOHAI UNIV