In-situ dynamic monitoring system for internal microenvironment parameters of concrete

Abstract

The invention provides an in-situ dynamic monitoring system for internal microenvironment parameters of concrete. The system comprises a temperature sensor, a humidity sensor, an all-solid-state chloride ion sensor, an all-solid-state pH sensor, a macro battery pack sensor and a square frame, wherein the temperature sensor is used for measuring internal temperature of the concrete; the humidity sensor is used for measuring internal humidity of the concrete; the all-solid-state chloride ion sensor is used for measuring the content of chloride ions in the concrete; the all-solid-state pH sensor is used for measuring internal pH value of the concrete; the macro battery pack sensor is used for measuring the corrosion condition of reinforcing steel bars in the concrete; the square frame is used for connecting the sensors into a whole, has a fixing function and prevents sensor locations from being changed in a mounting process or a concentrate pouring process. The monitoring system is accurate in positioning, comprehensive in testing and easy to mount, further, the system is provided with a self-powered system and adopts solar power supply, batteries are not required to be changed regularly, and the system is convenient and efficient accordingly.

Description

Technical field [0001] The invention relates to the technical field of concrete durability monitoring, in particular to an in-situ dynamic monitoring system for internal microenvironment parameters of concrete. Background technique [0002] The development of the marine economy has driven the construction of marine areas. This rapid development is inseparable from the construction of infrastructure such as harbours, marine platforms, and cross-sea channels. Most of these large marine infrastructures are reinforced concrete structures, and their service life is mostly The requirement is more than 100 years. However, according to investigations conducted by the Ministry of Construction of my country, most domestic industrial buildings need to be overhauled after 25 to 30 years of use, and the service life of buildings in harsh environments such as the ocean is only 15 to 20 years. This does not meet the service life requirements, and the ocean is a very harsh corrosive environment...

AI Technical Summary

Problems solved by technology

CN104075756A discloses a multi-component wireless monitoring system for the durability of concrete structures. The advantage is that the system can wirelessly monitor relevant parameters in the concrete. The disadvantage is that the sensing element cannot be moved, the monitoring position is single, and the external collector needs to replace the battery for a long time

CN101334353A discloses a multifunctional sensor for monitoring the corrosion of reinforced concrete structures. The sensor can also monitor relevant parameters in the concrete, and integrates each sensor into one body, but the monitoring point is unique, and multiple sensors need to be embedded in the concrete for monitoring , does not reflect real data, and the metal shell used for integration is a stainless steel cylinder, which is expensive

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