Research apparatus for wick effect solution transmission process in concrete

Abstract

The invention discloses a research apparatus for a wick effect solution transmission process in concrete. The research apparatus comprises an environment simulation system, a quality test system, a data transmission and reception system, and a data process system, the quality test system is arranged in the environment simulation system and enables communication connection with the data process system through the data transmission and reception system, The research apparatus employ an environment simulation-wireless transmission, automatic data collection experiment mode, the moisture evaporation rate in the concrete wick effect process is detected, and the rate can directly present environment humidity, erosion solution concentration, and the influence on the wick effect by a concrete composition material and a structure. The environment simulation employs a sealed environment tank, and the environment change is controlled through the different saturation salting solutions. The test realizes whole-process data real-time acquisition, the data accuracy is high, and the invention provides a reliable testing device for researching the wick effect salting solution transmission process in the concrete.

Description

technical field [0001] The invention belongs to the technical field of anti-salt corrosion in concrete durability research, and in particular relates to a research device for the wick effect solution transmission process in concrete. Background technique [0002] Concrete is a multiphase system composed of solid, liquid and gas phases, accompanied by fluid migration inside. Fluids related to durability: Water, carbon dioxide, and oxygen can flow through concrete in different ways, all migration depending on the structure of the hydrated cement paste. The transport of solution in concrete mainly consists of three modes: osmosis, diffusion and adsorption. Osmosis is the flow under the action of pressure difference, and the migration rate depends on the permeability coefficient; diffusion is the movement of fluid under the concentration difference, and the migration rate depends on the diffusion coefficient. Adsorption is the contact between the pores of concrete and the surr...

AI Technical Summary

Problems solved by technology

Buenfeld, N.R. et al. proposed an experimental device as early as 1997 to simulate the dynamics of the water evaporation area, called The Wick Action Test Cell. Although this experimental method can reasonably express the concrete wick effect, the results are not real-time and universal , its device is not up to date and does not meet the accuracy required by the wicking effect research

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