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Permeable emulsified asphalt concrete and preparation method thereof

A technology for emulsified asphalt and concrete, applied in the field of asphalt concrete, can solve problems such as plastic deformation of asphalt, achieve stable performance, improve bending deformation resistance, and solve the effects of settlement and rutting.

Pending Publication Date: 2021-07-16
ANHUI ZHONGTIE ENGINEER MATERIAL SCI & TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a permeable emulsified asphalt concrete and its preparation method, which can solve the problems of road surface settlement and rutting caused by plastic deformation of asphalt at high temperature

Method used

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  • Permeable emulsified asphalt concrete and preparation method thereof
  • Permeable emulsified asphalt concrete and preparation method thereof
  • Permeable emulsified asphalt concrete and preparation method thereof

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preparation example Construction

[0031] A preparation method of permeable emulsified asphalt concrete, specifically comprising the following steps:

[0032] (1), preparation of modified emulsified asphalt:

[0033] Weigh asphalt, anionic emulsion and anti-stripping agent in parts by mass, put them into a high-speed shear mixing mill, shear at high speed for 1-2min, and circulate for three times to obtain a uniform emulsion, and weigh the uniform emulsion at 40-60°C in parts by mass Stir and mix with rubber powder, the stirring speed is 20-30r / min, and the stirring time is 20min, so as to obtain modified emulsified asphalt;

[0034] (2) Mix and stir the coarse aggregate and half of the water for 30s according to the ratio of parts by mass, then add cement, cement, modified emulsified asphalt and the remaining half of water according to the ratio of parts by mass, and continue stirring for 120s to prepare permeable emulsified asphalt concrete.

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Abstract

The invention discloses permeable emulsified asphalt concrete and a preparation method thereof. The permeable emulsified asphalt concrete is prepared from the following components in parts by mass: 50-70 parts of coarse aggregate, 20-25 parts of cement, 5-10 parts of modified emulsified asphalt, 0-5 parts of a cementing agent and 5-10 parts of water, wherein the modified emulsified asphalt is prepared from the following components in parts by mass: 40-60 parts of asphalt, 20-30 parts of anionic emulsion, 20-25 parts of rubber powder and 0-5 parts of an anti-stripping agent. The prepared modified emulsified asphalt is suitable for low-temperature storage, and the prepared permeable emulsified asphalt concrete has the advantages of high concrete strength, high-temperature rutting resistance and wear resistance.

Description

technical field [0001] The invention relates to the technical field of asphalt concrete, in particular to a water-permeable emulsified asphalt concrete and a preparation method thereof. Background technique [0002] At present, with the construction of the national sponge city on the agenda, permeable concrete materials, as an important symbol of the transformation of urban development concepts and construction methods, are receiving more and more attention. However, due to the unique skeleton pore structure of pervious concrete, the bonding area of ​​cement paste to aggregate is reduced, the contact points between aggregates are reduced, and the mechanical properties of concrete cannot meet the requirements. The permeable asphalt concrete prepared by introducing asphalt instead of cement can solve the problem. The strength of permeable cement concrete is low, but permeable asphalt concrete has poor water permeability and bending deformation resistance, and is prone to crack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06C04B16/04C04B24/16C04B24/04C04B22/06
CPCC04B28/04C04B28/06C04B16/04C04B24/16C04B24/04C04B22/062C04B2111/00284C04B2201/50C04B7/02C04B14/28C04B14/14C04B24/36C04B18/08C04B18/146C04B2103/402C04B24/383C04B2103/0068
Inventor 范冬冬陈娟马腾飞刘赞群瞿鑫明王世杰吴团华张有为孙迅武仲全师永志李芳芳
Owner ANHUI ZHONGTIE ENGINEER MATERIAL SCI & TECH CO LTD
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