Auxiliary device for determining asphalt aging performance and test method thereof
A technology of aging performance and auxiliary devices, which can be used in measurement devices, instruments, scientific instruments, etc.
Active Publication Date: 2018-12-21
CHANGAN UNIV
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Problems solved by technology
In the absence of oxygen, heat plays a leading role in the performance change of asphalt, and the traditional rotary film oven (RTFOT) and pressure aging vessel (PAV) aging methods for this type of asphalt aging behavior cannot be simulated correctly, so , the aerobic thermal aging behavior of asphalt needs to be further studied
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[0033] Embodiments of the present invention will be described in detail below in conjunction with examples, but those skilled in the art will understand that the following examples are only used to illustrate the present invention, and should not be considered as limiting the scope of the present invention.
[0034] refer to figure 1 , the auxiliary device for measuring the aging performance of asphalt proposed according to the content of the present invention is used to analyze the influence of temperature on the aging performance of asphalt during storage and transportation, including: a bottle body 1, a bottle cap 2 and a thermometer 4; the bottle body The upper port of 1 is provided with an external thread, the inside of the bottle cap 2 is provided with an internal thread, and the external thread cooperates with the internal thread, and the upper port of the bottle body 1 and the bottle cap 2 are provided with a sealing gasket; the bottle cap 2 is provided with a vent hole ...
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Abstract
The invention discloses an auxiliary device for determining asphalt aging performance and a test method thereof. The auxiliary device is used for analyzing influence of temperature on the asphalt aging performance during storage and transportation processes. The auxiliary device comprises a bottle body, a bottle cap and a thermometer. The upper port of the bottle body is provided with external threads, the inside of the bottle cap is provide with internal threads, the external threads and the internal threads cooperate with each other, and a sealing gasket is arranged between the upper port ofthe bottle body and the bottle cap; the bottle cap is provide with a vent hole which is provided with a gas check valve therein; and the thermometer penetrates through the bottle cap and extends intothe bottle body, and a sealing shim is arranged between the thermometer and the bottle cap. The auxiliary device can simulate asphalt aging during the storage and transportation processes or high oxygen degradation of polymers, and can obtain the influence of temperature on the asphalt aging performance during the storage and transportation processes, which helps to judge whether various performance indexes of an asphalt meet construction requirements after actual transportation, so that the asphalt can be improved to meet the construction requirements before the actual transportation, and the auxiliary device also contributes to research of new materials.
Description
technical field [0001] The invention relates to the technical field of asphalt material detection equipment and detection methods thereof, in particular to an auxiliary device for measuring the aging performance of asphalt and a test method thereof, which are used to analyze the influence of temperature on the aging performance of asphalt during storage and transportation. Background technique [0002] Polymer modified asphalt has been widely used in roads due to its excellent performance. Among many polymerized modified asphalts, styrene-butadiene-styrene ternary block copolymer (SBS) modified asphalt is the most widely used modified asphalt, which can effectively improve the high and low temperature performance of asphalt , durability and fatigue resistance, etc. [0003] However, there are still many problems in the application process of SBS modified asphalt, such as thermal degradation and anti-aging performance. Many literatures mainly focus on the degradation of SBS...
Claims
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IPC IPC(8): G01N17/00
CPCG01N17/002
Inventor 丛培良贺北斗陈贝妮王俊岩郝红杰张皓
Owner CHANGAN UNIV