Ultrahigh-performance concrete distributing apparatus and application method thereof

Abstract

The invention relates to the technical field of concrete paving, and especially relates to an ultrahigh-performance concrete distributing apparatus and an application method thereof. The apparatus comprises a quantitative discharging device, a bin dynamic weighing device, a translation device and an intelligent distributing control device, the quantitative discharging device is erected on the translation device and can longitudinally move and transversely move on the translation device, the bin dynamic weighing device is connected with the quantitative discharging device so as to measure the storage state and the storage decreasing value in the bin of the quantitative discharging device, an elevation detection device is arranged at the bottom of the quantitative discharging device and is used for detecting the distance between the elevation detection device and a material distribution face, and the intelligent material distributing control device is in data connection with the bin dynamic weighing device and the elevation detection device and controls the displacement state of the quantitative discharging device on the translation device according to measurement data of the bin dynamic weighing device and the elevation detection device. An ultrahigh-performance concrete distribution intelligent control system is used for accurately controlling distribution, and efficient operation of the system is achieved.

Description

technical field [0001] The invention relates to the technical field of concrete paving, in particular to an ultra-high performance concrete distributing device and an application method thereof. Background technique [0002] Ultra-high performance concrete is especially suitable for important structures, such as steel box girder composite structures, but there are also a series of construction problems in the actual construction process, such as UHPC's low water-cement ratio (less than 0.2), high viscosity, and workability The time is short, which leads to difficulty in distributing materials. The materials during construction are sensitive to temperature and humidity, and the materials contain steel fibers. It is difficult to mix and pave by conventional methods. In particular, the coagulation characteristics of the concrete make conventional paving equipment and It is difficult for the process to meet the requirements of large-area, continuous, high-quality and uniform pav...

AI Technical Summary

Problems solved by technology

[0002] Ultra-high performance concrete is especially suitable for important structures, such as steel box girder composite structures, but there are also a series of construction problems in the actual construction process, such as UHPC's low water-cement ratio (less than 0.2), high viscosity, and workability The time is short, which leads to difficulty in distributing materials. The materials during construction are sensitive to temperature and humidity, and the materials contain steel fibers. It is difficult to mix and pave by conventional methods. In particular, the coagulation characteristics of the concrete make conventional paving equipment and It is difficult for the process to meet the requirements of large-area, continuous, high-quality and uniform paving

[0003] Due to the unsatisfactory distribution effect, only a few manufacturers in China currently use ultra-high-performance concrete placing machines to distribute materials. The main problem in the prior art is that when laying ultra-high-performance concrete, there is a defect of uneven feeding. If Simply relying on the scraper to plaster the surface has a poor forming effect, and even leaves tiny gaps, and the phenomenon of cracking is more serious

In addition, the height is measured before the continuous paving of large areas of concrete, so that the thickness of the concrete paving is consistent during the distributing, and it is impossible to fine-tune it according to the actual height of the bridge deck. Concrete makes an impact

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