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Growth type anti-skid asphalt pavement construction method

A construction method and asphalt pavement technology, which is applied to roads, roads, pavement details, etc., can solve the problems of low friction coefficient, poor skid resistance of asphalt pavement, and easy slipping of vehicles, and achieve the goal of improving skid resistance and curing strength Effect

Pending Publication Date: 2021-02-12
福州市天伟达电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing asphalt pavement has poor skid resistance in ice and snow weather, especially after a thin layer of ice is formed on the asphalt pavement, the friction coefficient is extremely low, the vehicle is very prone to skidding, and there is a serious risk of traffic accidents

Method used

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  • Growth type anti-skid asphalt pavement construction method
  • Growth type anti-skid asphalt pavement construction method
  • Growth type anti-skid asphalt pavement construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] see figure 1 , a kind of growing antiskid asphalt pavement construction method, comprises the following steps:

[0045] S1. Before construction, clean the base to ensure that the base is dry and clean without any loose stones, dust and impurities, and repair the pit defects existing in the base;

[0046] S2. Prepare modified emulsified asphalt on site, and add 2% of ordinary Portland cement with a strength of 42.5, and spread it on the construction road surface to form a seal;

[0047] S3. Sprinkle the penetrating layer oil on the pavement base layer, and spread the sticky layer oil between the asphalt concrete layers. After the completion, transport the mixed asphalt mixture to the site for paving. The mixing temperature of the asphalt mixture is 170°C, and the discharge The temperature is 165, the paving temperature is 160°C, the paving coefficient is 1.15, and the paving speed is 2m / min;

[0048] S4. After the paving of the upper layer is completed, a magnetic plat...

Embodiment 2

[0057] see figure 1 , a kind of growing antiskid asphalt pavement construction method, comprises the following steps:

[0058] S1. Before construction, clean the base to ensure that the base is dry and clean without any loose stones, dust and impurities, and repair the pit defects existing in the base;

[0059] S2. Prepare modified emulsified asphalt on site, and add 2.5% of ordinary Portland cement with a strength of 42.5, and spread it on the construction road surface to form a seal;

[0060] S3. Sprinkle the penetrating layer oil on the pavement base layer, and spread the sticky layer oil between the asphalt concrete layers. After the completion, transport the mixed asphalt mixture to the site for paving. The mixing temperature of the asphalt mixture is 175°C, and the discharge The temperature is 168°C, the paving temperature is 165°C, the paving coefficient is 1.15, and the paving speed is 2.5m / min;

[0061] S4. After the paving of the upper layer is completed, a magneti...

Embodiment 3

[0066] see figure 1 , a kind of growing antiskid asphalt pavement construction method, comprises the following steps:

[0067] S1. Before construction, clean the base to ensure that the base is dry and clean without any loose stones, dust and impurities, and repair the pit defects existing in the base;

[0068] S2. Prepare modified emulsified asphalt on site, and add 3% of ordinary Portland cement with a strength of 42.5, and spread it on the construction road surface to form a seal;

[0069] S3. Sprinkle the penetrating layer oil on the pavement base layer, and spread the sticky layer oil between the asphalt concrete layers. After the completion, transport the mixed asphalt mixture to the site for paving. The mixing temperature of the asphalt mixture is 185°C, and the discharge The temperature is 170°C, the paving temperature is 170°C, the paving coefficient is 1.15, and the paving speed is 3m / min;

[0070] S4. After the paving of the upper layer is completed, a magnetic pl...

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Abstract

The invention discloses a growth type anti-skid asphalt pavement construction method, which belongs to the technical field of asphalt pavement construction. Growth anti-skid balls are doped into an asphalt mixture, and can be pre-buried in an asphalt pavement for reinforcement, and meanwhile, the orientation can be corrected in a magnetic force guiding manner; the growth anti-skid balls as fillersdistributed at intervals are embedded into the surface of the asphalt pavement and can autonomously sense low temperature; the anti-skid beads on the upper side are extended and fixed by utilizing the characteristics that the anti-skid beads expand and harden when water is frozen, so that on one hand, thin ice formed on the asphalt pavement can be destroyed during extension, and on the other hand, multi-point bulges are formed on the asphalt pavement, so that the anti-skid performance of the asphalt pavement is improved; passing vehicles are not prone to slip; a free state is recovered aftertemperature rises, the anti-slip beads return to spheres and can be avoided, interference to driving of the passing vehicles is avoided, and the slip resistance of the existing asphalt pavement can beimproved to a great extent.

Description

technical field [0001] The invention relates to the technical field of asphalt pavement construction, in particular to a construction method for growing anti-skid asphalt pavement. Background technique [0002] Asphalt pavement refers to various types of pavement paved with asphalt materials mixed with mineral materials. Asphalt binder improves the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. [0003] The asphalt structural layer of asphalt pavement itself belongs to the category of flexible pavement, but in addition to flexible materials, the base layer can also use rigid cement concrete or semi-rigid hydraulic materials. [0004] Asphalt pavement is various types of pavement formed by paving and rolling asphalt concrete. Asphalt concrete is a mixture formed by fully mixing aspha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C11/00E01C11/26E01C19/23E01C19/28C08L95/00C08L25/08C08L9/00C08K3/26
CPCC08K2003/265C08L95/00C08L2205/03E01C7/18E01C11/00E01C11/26E01C19/23E01C19/28C08L25/08C08L9/00C08K3/26
Inventor 张维平
Owner 福州市天伟达电子科技有限公司