Selection method of pulling rheometer and concrete pumping equipment

Abstract

The invention discloses a type selection method for a pull-type rheometer and concrete pumping equipment; the pull-type rheometer includes a base, a driving mechanism, a cable, a piston, a speed sensor, a tension sensor and a cylinder. The cylinder is vertically arranged on the base, and the piston is slidably arranged in the cylinder; one end of the cable is connected to the driving mechanism, and the other end is connected to the piston; the tension sensor is arranged on the cable for Detect the pulling force of the cable; the driving mechanism drives the piston to move upward at a constant speed through the cable, and the speed sensor is used to obtain the moving speed of the piston. The viscosity coefficient of concrete can be obtained conveniently through the pulling rheometer, and then provide a theoretical basis for the selection of concrete pumping equipment. In addition, the proportion of concrete can be adjusted according to the viscosity coefficient of concrete, thereby optimizing the performance of concrete.

Description

technical field [0001] The invention relates to fluid performance parameter detection technology, in particular to a pull-type rheometer. In addition, the invention also proposes a type selection method for concrete pumping equipment. Background technique [0002] At present, concrete, as a basic material, has been widely used in various engineering constructions, so the impact of concrete performance parameters on engineering quality is self-evident. Moreover, in the construction process, in order to improve construction efficiency and shorten the construction period, pumping machinery (such as concrete pump trucks, tow pumps or booms, etc.) is usually used to pump concrete to the predetermined position on the construction site, and the performance parameters of concrete It also has an important impact on pumping operations, especially the viscosity coefficient; concrete with an appropriate viscosity coefficient can reduce the energy consumption of pumping operations, incr...

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Problems solved by technology

[0003] In the industry standard "Technical Regulations for Concrete Pumping Construction" promulgated in 1995, an empirical formula for the pressure loss of pumped concrete along the way was proposed. The method for calculating the viscosity coefficient is obviously not suitable for the high-grade concrete commonly used at present.

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