Instrument for measuring low-temperature performance of road gap-grouting material

Abstract

The invention provides an instrument for measuring low-temperature performance of a road gap-grouting material. The instrument mainly comprises a bracket part, a clamp part, a skateboard part, a stretching distance measuring part, a motor transmission part and a temperature control part, wherein the bracket part has the supporting function and can be also used as a skateboard slideway; the clamp part can be detached according to experimental requirement and is relatively convenient; the skateboard part utilizes the connection between four directly-actuated bearings and four pillar guide rails, can freely slide on the slideway and has extremely small friction; the stretching distance measuring part can automatically measure the stretching length of the material; the motor transmission partand a power part have simple structures, are durable, utilize electrical energy and have no noise and pollution; and the temperature control part can continuously adjust the temperature and accurately controls the temperature. The instrument can simply and effectively measure the low-temperature stretching performance of the road gap-grouting material. The instrument has simple equipment composition, easy operation and a rapid experimental method, is difficult to destroy, does not need special maintenance, can well evaluate the low-temperature performance of the road gap-grouting material andgives quantized data.

Description

(1) Technical field [0001] The invention relates to the technical field of road joint filling, in particular to a temperature measuring device for road joint filling materials. (2) Background technology [0002] With the rapid development of highway traffic construction in our province, the mileage of highways has increased rapidly, and cracks have become an inevitable disease of the road surface. Therefore, timely and effective repair of road surface cracks has become a prominent problem. As one of the main disease forms of highway asphalt pavement, cracks seriously affect the service performance and life of the pavement. There are many types of crack repair materials in our province, and the quality is uneven. Due to the cold winter in Heilongjiang Province and the large temperature difference between day and night, the failure of joint filling materials generally occurs in winter and breaks under the tension of cracks. Therefore, the tensile properties of the joint grout...

AI Technical Summary

Problems solved by technology

At present, there is no simple and effective method for evaluating the

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