Asphalt mixture rut test piece vibration wheel rolling forming instrument and use method thereof

Abstract

The invention relates to an asphalt mixture rut test piece vibration wheel rolling forming instrument and a use method thereof, and belongs to the technical field of engineering machinery. The instrument comprises a vibration rolling system and a control system, the vibration rolling system mainly comprises a base, a moving trolley, a rolling wheel and a vibration motor, a rail is arranged at thetop of the base, the bottom of the moving trolley is connected with a dowel bar, a support is arranged on the side edge of the base, a hydraulic dowel bar is arranged at the top end of the support, the rolling wheel is in power connection with a hydraulic force loading rod, and the vibration motor is arranged at the top of the rolling wheel; and the control system is composed of a box body, a vibration switch, a moving trolley driving switch, a rolling wheel lifting switch and a parameter input unit, the hydraulic force loading rod is connected with an oil pump, the oil pump is connected withan oil pump switch, the moving trolley driving switch is electrically connected with a driving device, the vibration motor is electrically connected with the vibration switch, the rolling wheel lifting switch is electrically connected with the rolling wheel, and the vibration switch, the rolling wheel lifting switch and the hydraulic dowel bar are electrically connected with the parameter input unit.

Description

technical field [0001] The invention relates to an asphalt mixture rutting test piece vibrating wheel mill forming instrument and a using method thereof, which belong to the technical field of engineering machinery. Background technique [0002] In recent years, the rapid development of my country's highway traffic construction has led to the large-scale application of asphalt pavement. At present, rutting forming instruments are used to form test pieces through reciprocating rolling, and the high-temperature stability of asphalt mixtures is evaluated by the dynamic stability index of rutting testing instruments. . However, because the asphalt mixture contains more aggregates, the coarse aggregate particles have strong angularity and large internal friction angle, so the conventional static pressure wheel rolling method cannot effectively improve the embedding ability between aggregates. The method of increasing the number of rolling times will easily lead to the crushing of...

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Problems solved by technology

However, because the asphalt mixture contains more aggregates, the coarse aggregate particles have strong angularity and large internal friction angle, so the conventional static pressure wheel rolling method cannot effectively improve the embedding capacity between aggregates. The method of increasing the number of rolling times will easily lead to the crushing of the edges and corners of the aggregate. At the same time, the indoor static pressure wheel rolling method cannot simulate the vibration rolling of the steel wheel roller on the construction site, so that the density ratio of the rut specimen formed by the indoor static pressure The site is too small to truly reflect the actual performance of the road surface on site

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