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High-performance cement-emulsified asphalt mixture and preparation method thereof

A technology of cement emulsified asphalt and emulsified asphalt, which is applied in the field of high-performance cement emulsified asphalt mixture and its preparation, can solve the problems of high toxicity of tackifiers and the need to consume mineral materials for heating, shorten the strength formation time, improve construction and ease The effect of reducing the mixing water consumption of the mixture

Inactive Publication Date: 2020-04-24
GAOYUAN HIGHWAY MAINTENANCE TECH HENAN PROV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is the high toxicity of the tackifier used and the need for energy-consuming overall heating of the ore

Method used

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  • High-performance cement-emulsified asphalt mixture and preparation method thereof
  • High-performance cement-emulsified asphalt mixture and preparation method thereof
  • High-performance cement-emulsified asphalt mixture and preparation method thereof

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Embodiment Construction

[0027] specific implementation plan

[0028] The preparation method of a high-performance cement emulsified asphalt mixture provided by the present invention will be described in detail below in conjunction with the examples, but they cannot be interpreted as limiting the protection scope of the present invention.

[0029] Unless otherwise specified, the content of each component used in the following is a proportion by weight.

[0030] In the present invention, described special grading selects AC-13C recommended by JTG F40-2004 "Technical Specifications for Road Asphalt Pavement Construction" to carry out the test, as shown in Table 1:

[0031] Table 1 AC-13C Grading

[0032]

[0033] A high-performance cement emulsified asphalt mixture, comprising the following raw materials in parts by weight:

[0034] 63 parts of limestone coarse aggregate;

[0035] 37 parts of limestone fine aggregate;

[0036] 10 parts of modified emulsified asphalt;

[0037] 3 parts of cement; ...

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Abstract

The invention belongs to the technical field of road engineering, and discloses a high-performance cement-emulsified asphalt mixture and a preparation method thereof. The high-performance cement-emulsified asphalt mixture comprises coarse aggregate, fine aggregate, emulsified asphalt, a mineral filler, an additive and water. The preparation method comprises the following steps: fully mixing waterfor mixing, the emulsified asphalt, the mineral aggregates, the filler and the additive in a mixing device, uniformly stirring, carrying out magnetization treatment on the obtained mixture through a magnetic field with a preset intensity according to a certain discharge rate, and carrying out paving molding through a paving machine. The asphalt mixture prepared by adopting the preparation method and the optimized material blending proportion shows excellent construction workability and pavement effect; and compared with a traditional cold-mixed asphalt mixture, the mixture of the invention hasthe following advantages: the strength forming time is short, the splitting strength of the mixture is obviously improved, and the fatigue life of the mixture is obviously prolonged.

Description

technical field [0001] The invention belongs to the technical field of road engineering materials, and in particular relates to a high-performance cement emulsified asphalt mixture and a preparation method thereof. Background technique [0002] Cold-mix asphalt mixture (CRA) is a road material that mixes mineral aggregates, modified emulsified asphalt and inorganic cementitious materials in proportion, and then mixes and constructs at room temperature. During the production process, the energy consumption is less, no harmful gas emission, the mechanical combination is simple during the construction process, the construction is fast and convenient, and the use requirements can be quickly met after the construction is completed, so the impact on traffic is small. Therefore, cold mix asphalt mixture is widely used in the rapid treatment of road surface. [0003] In the cold mix asphalt mixture, the emulsified asphalt and the mineral aggregate are combined through physical and ...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B40/00
CPCC04B26/26C04B40/0007C04B2201/50C04B14/28C04B7/00C04B2103/0068
Inventor 刘廷国史纪村张庆布赛尔·阿列克谢韦连科·弗拉基米尔李忠玉赫鲁斯塔廖夫·鲍里斯赞科维奇·维塔利王君雄刘玉恒侯德华韩志宇尚波
Owner GAOYUAN HIGHWAY MAINTENANCE TECH HENAN PROV
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