In-situ monitoring device and method of cement concrete structure forming process

Abstract

An in-situ monitoring device and method of a cement concrete structure forming process are mainly used for controlling the concrete quality, preferring original materials and optimizing proportioning parameters in the fields of buildings, traffic, bridges, water conservation, underground construction, and the like. The device comprises an electromagnetic stirring device (1), a sample storehouse (2), an oil bath groove (3), an ultrasonic instrument (4) and an ultrasonic clamping instrument (5). During an experiment, first, the oil bath groove (3) is filled with heat resistant oil; then, the oil bath groove (3) is placed on the electromagnetic stirring device (1), a magnetic stirrer and a temperature sensor arranged in the electromagnetic stirring device are placed in the oil bath groove, and newly stirred cement concrete slurry is placed in the sample storehouse (2); the sample storehouse (2) filled with slurry is embedded in the oil bath groove (3) filled with heat-resistant oil; and finally, two piezoelectric sensors of the ultrasonic instrument (4) are clamped by the ultrasonic clamping instrument (5) so that the two piezoelectric sensors are in direct and tight contact with thecement concrete slurry in the sample storehouse (2), and the change curve of acoustic parameters in the structure forming process of the cement concrete slurry is automatically recorded.

Description

technical field [0001] The invention relates to an in-situ monitoring device and an experimental method in the formation process of a cement concrete structure, which belongs to the early performance testing technology of cement concrete. It is mainly used for concrete quality control, selection of raw materials and optimization of mix ratio parameters in fields such as construction, transportation, bridges, water conservancy, and underground engineering. Background technique [0002] Cement concrete is the largest man-made building material in the world and is widely used in construction, transportation, bridges, water conservancy, underground engineering and other fields. With the rapid development of the global economy, the construction scale is unprecedented, and the consumption of concrete is increasing year by year, especially for China, which is developing rapidly. At present, the annual output of concrete in my country reaches 7 billion tons, accounting for 45% of th...

AI Technical Summary

Problems solved by technology

Therefore, it is a damaged, intermittent and ex-situ method, and it is mainly aimed at relatively mature cement concrete with a certain strength (after 3 days), but there is a lack of research on the structure formation process of the ultra-early period (from the beginning of adding water to 3 days).

Images