Heat insulation layer for realization of temperature gradient of rutting test specimen

Abstract

The invention discloses a heat insulation layer for realization of temperature gradient of a rutting test specimen. The heat insulation layer comprises two parts including a left-side heat insulation layer (1) and a right-side heat insulation layer (2), and the two parts are independent and can be combined. Both the left-side heat insulation layer (1) and the right-side heat insulation layer (2) are V-shaped structures and are composed of two mutually vertical cuboids. The left-side heat insulation layer (1) and the right-side heat insulation layer (2) just can be pieced together to form a seamless combination shaped like a Chinese character ''Hui'', combining places can be fixedly connected through the tool buttons (4). Both the left-side heat insulation layer (1) and the right-side heat insulation layer (2) comprise housings and heat insulation layers (3). The heat insulation layers (3) are made from alumina silicate and have a thickness of 3 cm, and the housings are made from Q235 ordinary carbon structure steels and have the thickness of 1.5 mm. The heat insulation layer disclosed by the invention ensures that the external environment temperature dose not transmit to the outside wall of a test mold, can prevent heat dissipation and heat absorption of gaps between the rutting test mold and the heat insulation layer, can very effectively control the temperature of side walls of the rutting test specimen without affection of molding of the test mold, has the advantages of simple structure, low cost, and convenient manufacture, and can be repeatedly used.

Description

technical field [0001] The invention belongs to the field of indoor test instruments for performance evaluation of highway asphalt pavement, and in particular relates to a heat insulation layer for realizing the temperature gradient of a rutting test piece, so as to provide an asphalt mixture test piece for realizing the rutting resistance performance evaluation test of an asphalt pavement structure A technical solution for the design of the external insulation layer realized by the temperature gradient. Background technique [0002] With the rapid development of my country's economy, the traffic volume has increased significantly. The traffic channelization of expressways and first-class highways has become more and more serious. In addition to the rare and continuous high temperature in summer, the rutting problem has become a problem that affects the healthy development of my country's highways. Outstanding issue. [0003] The existence of rutting seriously affects the f...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems of poor heat insulation effect, complicated operation and serious waste of the heat insulation design of the side wall temperature control of the existing rutting specimens, thereby proposing a heat insulation layer for realizing the temperature gradient of the rutting specimens, so as to provide a A technical scheme for the design of the external heat insulation layer to realize the temperature gradient of the asphalt mixture specimen in the evaluation test of the anti-rutting performance of the asphalt pavement structure, so as to achieve the purpose of suitable material, good heat insulation function, convenience and reusability

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