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A micro-surface layer and its low-temperature construction method

A construction method and micro-surface technology, applied in the direction of roads, on-site coagulation pavement, buildings, etc., can solve the problems of difficult to guarantee construction quality, economic loss, inability to guarantee the adhesion performance of emulsified asphalt, etc. Construction period, the effect of reducing dependence

Active Publication Date: 2019-10-18
广东金长成桥梁隧道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main reason is that the performance of emulsified asphalt is inert when the temperature is lower than 10°C and is still cooling down. Therefore, the conventional construction method of the micro-surface layer cannot guarantee the adhesion of emulsified asphalt, and it is easy to cause large-area threshing and peeling. Construction quality is difficult to guarantee, resulting in economic losses

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  • A micro-surface layer and its low-temperature construction method

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Embodiment 1

[0020] An embodiment of the micro-surface layer low-temperature construction method of the present invention, the method described in this embodiment includes the following steps:

[0021] (1) Before construction, the pits and grooves on the original road surface should be repaired, the expansion joints and cracks should be filled, compacted, and smoothed; use an air compressor (or back-type blower) to remove debris on the road surface to ensure that the road surface is clean and tidy;

[0022] (2) Stir and stir the raw materials, spread them on a clean and tidy road surface, and compact them to obtain the road surface after the construction of the micro-surface layer; wherein, the raw materials include the following components by weight: finely processed granules 100 parts of basalt or diabase or diorite with a diameter of 0-10mm, 13 parts of SBS modified emulsified asphalt, 3 parts of water, 3 parts of ordinary Portland cement, the temperature of the SBS modified emulsified a...

Embodiment 2

[0025] An embodiment of the micro-surface layer low-temperature construction method of the present invention, the method described in this embodiment includes the following steps:

[0026] (1) Before construction, the pits and grooves on the original road surface should be repaired, the expansion joints and cracks should be filled, compacted, and smoothed; use an air compressor (or back-type blower) to remove debris on the road surface to ensure that the road surface is clean and tidy;

[0027] (2) Stir and stir the raw materials, spread them on a clean and tidy road surface, and compact them to obtain the road surface after the construction of the micro-surface layer; wherein, the raw materials include the following components by weight: finely processed granules 100 parts of basalt or diabase or diorite with a diameter of 0-10mm, 11 parts of SBS modified emulsified asphalt, 8 parts of water, 2 parts of ordinary Portland cement, the temperature of the SBS modified emulsified a...

Embodiment 3

[0030] An embodiment of the micro-surface layer low-temperature construction method of the present invention, the method described in this embodiment includes the following steps:

[0031] (1) Before construction, the pits and grooves on the original road surface should be repaired, the expansion joints and cracks should be filled, compacted, and smoothed; use an air compressor (or back-type blower) to remove debris on the road surface to ensure that the road surface is clean and tidy;

[0032] (2) Stir and stir the raw materials, spread them on a clean and tidy road surface, and compact them to obtain the road surface after the construction of the micro-surface layer; wherein, the raw materials include the following components by weight: finely processed granules 100 parts of basalt or diabase or diorite with a diameter of 0-10mm, 16 parts of SBS modified emulsified asphalt, 5 parts of water, 1 part of ordinary Portland cement, the temperature of the SBS modified emulsified as...

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Abstract

The invention discloses a low temperature construction method for a micro-surfacing layer. The low temperature construction method comprises the following steps that (1) raw materials are mixed and stirred, and then are spread on a clean and tidy road surface and compacted; the raw materials comprise, by weight, 100 parts of aggregate, 11-16 parts of SBS modified emulsified asphalt, 3-8 parts of water and 1-3 parts of ordinary portland cement, the temperature of the SBS modified emulsified asphalt during mixing and paving is 25-50 DEG C; and (2) after the SBS modified emulsified asphalt is completely demulsified, compacting and curing are conducted on the micro-surfacing layer, the traffic is opened after the asphalt reaches a certain strength. The low temperature construction method for the micro-surfacing layer is suitable for highway construction and maintenance under low temperature conditions and has been implemented in construction of the Anji Daxi tunnel pavement in Huzhou, Zhejiang province under the ambient temperature of 2 DEG C-10 DEG C, the construction effect of the normal temperature such as 20 DEG C or above is completely achieved, and application requirements are fully satisfied by the performance of the micro-surfacing layer.

Description

technical field [0001] The invention relates to a construction method, in particular to a micro-surface layer and a low-temperature construction method thereof. Background technique [0002] Micro-surface treatment is a preventive maintenance method developed on the basis of the development of slurry seals. It can be widely used in the maintenance of high-grade roads such as expressways and urban trunk lines, improving road performance and prolonging the service life of roads. ISSA stipulates that when the pavement temperature or air temperature is lower than 10°C and is still cooling, the construction of micro-surface treatment is not allowed. The main reason is that the performance of emulsified asphalt is inert when the temperature is lower than 10°C and is still cooling down. Therefore, the conventional construction method of the micro-surface layer cannot guarantee the adhesion of emulsified asphalt, and it is easy to cause large-area threshing and peeling. Constructio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/35C04B28/04C04B111/72
Inventor 王金辉莫广亮王潇潇刘允盛葛银辉莫叶兵宋学斌阳鹰飞周强伟谭湛溪郑兆章李浩
Owner 广东金长成桥梁隧道科技有限公司