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A one-step grading mixture method of high performance modified emulsified asphalt with open grading structure

A technology of open-graded structure and emulsified asphalt, which is applied in the direction of climate change adaptation, can solve problems such as energy consumption, and achieve the effects of reducing water drift, better environmental protection, and lower use costs

Active Publication Date: 2016-05-11
中交二公局第四工程有限公司
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AI Technical Summary

Problems solved by technology

Hot-mix asphalt technology: asphalt needs to be heated to 170°C, stone needs to be heated to 200°C, and the annual construction day is about 180 days due to construction conditions; the most advanced second-generation warm-mix asphalt technology in the world: asphalt needs to be heated to 130°C, The stone needs to be heated to 170°C, and the annual construction day is about 180 days due to construction conditions; the above two technologies consume a lot of energy and emit a lot of pollution

Method used

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Embodiment Construction

[0012] In view of the disadvantages of hot asphalt and warm asphalt technology laying consumes a lot of energy and emits a lot of carbon dioxide into the atmosphere, the self-developed high-performance modified emulsified asphalt is used to replace hot asphalt to realize the paving of expressways and graded roads at room temperature. Taking the factors affecting highway technical indicators as variables, aiming at highway technical indicators or the physical properties of materials, and using nonlinear scientific methods to conduct research, not only the influence of a single factor, but also the interaction of various factors are investigated, and finally It can guide the scheme of high-performance modified emulsified asphalt mixture and guide the actual production.

[0013] The problem of high-performance modified emulsified asphalt mixture has many influencing factors as a composite system of multiple materials. The present invention investigates 6 influencing factors, inclu...

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Abstract

The invention discloses a high performance modified emulsified asphalt open-graded structure's one-step gradation mixing method. The method comprises the steps of: 1. selecting a plurality of factors affecting highway technical indexes and a plurality of highway technical indexes or material physical properties, employing multiple test levels for each factor to extract test data; 2. analyzing the test data obtained in step 1, and analyzing the influence of each factor on each technical index or physical property; 3. analyzing the influence of interaction between every two factors in the test data obtained in step 1 on each technical index or physical property; and 4. combining the analysis results of step 2 and step 3 to look for an optimal gradation mixing ratio. The method provided by the invention omits heating energy consumption, saves energy, reduces carbon emission, and does not produce flue gas. The environmental protection effect is good, year construction days are long, pavement water seepage performance is good, driving noise is low, and safety performance is high.

Description

technical field [0001] The invention relates to a method for configuring asphalt mixture in the field of road traffic, in particular to a one-step gradation method for high-performance modified emulsified asphalt with an open gradation structure. Background technique [0002] At present, domestic and foreign road construction materials are researching the technologies and materials of heat-modified asphalt and advanced warm-mix asphalt. Hot-mix asphalt technology: asphalt needs to be heated to 170°C, stone needs to be heated to 200°C, and the annual construction day is about 180 days due to construction conditions; the most advanced second-generation warm-mix asphalt technology in the world: asphalt needs to be heated to 130°C, The stone needs to be heated to 170°C, and the annual construction day is about 180 days due to construction conditions; the above two technologies consume a lot of energy and emit a lot of pollution. Contents of the invention [0003] Aiming at th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26
CPCY02A30/30
Inventor 孙益民芮定文王举
Owner 中交二公局第四工程有限公司
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