Unlock instant, AI-driven research and patent intelligence for your innovation.

Efficient vibration-pressing-free self-health-preserving additive, efficient vibration-pressing-free self-health-preserving water-stable base layer and preparation method and application thereof

An additive and high-efficiency technology, applied in the field of engineering materials, can solve problems such as inability to backfill, traffic congestion, and reduced traffic efficiency

Pending Publication Date: 2021-06-11
JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, as the traffic volume continues to grow rapidly, the roads built in the early days, especially the expressways, have suffered serious diseases, making it difficult to continue to provide comfortable driving services, and have entered the stage of large-scale repair and maintenance
When there are serious cracks, potholes, slops and other diseases on the road, in addition to replacing the asphalt surface, the pavement base is often treated. However, due to the large traffic volume of some roads, the maintenance project cannot interrupt the traffic for construction. Traditional water The stable base needs to be cured for 7 days to form strength before the asphalt surface can be implemented. The project period is long, and the construction section must be closed during the water-stabilized base.
In places with heavy traffic and frequent congestion, traditional maintenance methods will cause traffic congestion, reduce traffic efficiency, and have a certain impact on traffic and people's travel
In addition, the pavement at the diseased area cannot be backfilled for a long time after milling, which also poses a great safety hazard to traffic operation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Efficient vibration-pressing-free self-health-preserving additive, efficient vibration-pressing-free self-health-preserving water-stable base layer and preparation method and application thereof
  • Efficient vibration-pressing-free self-health-preserving additive, efficient vibration-pressing-free self-health-preserving water-stable base layer and preparation method and application thereof
  • Efficient vibration-pressing-free self-health-preserving additive, efficient vibration-pressing-free self-health-preserving water-stable base layer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0096] In addition, the present application also provides a method for preparing the above-mentioned high-efficiency vibration-free and pressure-free self-curing water-stabilized base, which includes the following steps: spreading and rolling the prepared raw materials.

[0097] In an optional embodiment, before paving, the preparation raw materials are mixed, wherein, the addition method of the high-efficiency vibration-free self-curing additive includes: mixing through the feed hopper of the cold hopper of the water-stabilized base mixing station or through a The cement tank warehouse of the arch breaker is mixed. Among them, the arch breaker prevents the material from clumping.

[0098] In an optional embodiment, rolling includes initial pressing, re-pressing and final pressing, wherein the rolling methods of each rolling stage can refer to:

[0099] However, in the rolling method of the conventional water-stabilized base course, the double-drum roller is used to vibra...

Embodiment 1

[0104]This embodiment provides the pavement maintenance project of Ganzhou Expressway "13th Five-Year Plan" to meet the national inspection project.

[0105] In this project, referring to the technical requirements of vibration-free self-curing cement-stabilized gravel, the mixture ratio of the water-stabilized base was designed.

[0106] The mass ratio of components of the high-efficiency vibration-free and pressure-free self-health additive is water-reducing agent: expansion agent: early-strength agent = 15:85:0. Among them, the water reducer was purchased from Sika, the expansion agent was purchased from Nanjing Pioneer, and the early strength agent was purchased from Qingdao Huide. The properties of the water reducer, expansion agent and early strength agent all meet the performance requirements of the corresponding raw materials in this application.

[0107] The high-efficiency vibration-free self-curing water-stabilized base is made by mixing high-efficiency vibration-f...

Embodiment 2

[0117] This example provides the 2020 Nantong City general national and provincial arterial highway maintenance major and medium repair project G228 Rudong section project, the construction situation is as follows figure 2 shown.

[0118] In this project, referring to the technical requirements of vibration-free self-curing cement-stabilized gravel, the mixture ratio of the water-stabilized base was designed.

[0119] The mass ratio of components of the high-efficiency vibration-free self-health additive is water reducer: expansion agent: early strength agent = 25:75:0. Among them, the water reducing agent was purchased from Weifang Hongle, the expansion agent was purchased from Qingdao Huide, and the early strength agent was purchased from Qingdao Huide. The properties of the water reducer, expansion agent and early strength agent all meet the performance requirements of the corresponding raw materials in this application.

[0120] The high-efficiency vibration-free self-c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Dry densityaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses an efficient vibration-pressing-free self-curing additive, an efficient vibration-pressing-free self-curing water-stable base layer and a preparation method and application of the efficient vibration-pressing-free self-curing water-stable base layer, and belongs to the technical field of engineering materials. The efficient vibration-compression-free self-curing additive comprises the following components in percentage by mass: 15-25% of a water reducing agent, 75-85% of an expanding agent and 0-10% of an early strength agent. The water reducing agent is a polycarboxylic acid water reducing agent, and the expanding agent is a calcium sulphoaluminate expanding agent. According to the high-efficiency vibration-compaction-free self-curing additive, the high-efficiency vibration-compaction-free self-curing water stabilizer can form mechanical properties in a short time under the conditions of no vibration compaction and no curing, the strength requirement of a construction asphalt surface layer can be met, and the compaction degree requirement specified by the specification can be met. Therefore, the contradiction between the current base course engineering quality and traffic operation safety, noise pollution, building safety and the like is thoroughly solved, and the rapid and high-quality maintenance effect of the water-stable base course is achieved.

Description

technical field [0001] The invention relates to the technical field of engineering materials, in particular to a high-efficiency vibration-free self-curing additive, a high-efficiency vibration-free self-curing water-stabilized base, and a preparation method and application thereof. Background technique [0002] At present, cement-stabilized gravel is widely used as semi-rigid base in the construction of high-grade highways in my country. The reason why cement-stabilized gravel is widely used is mainly due to the following reasons: ① The increase in vehicle axle load and the increase in traffic volume require higher and higher load-carrying capacity of the road surface. Crushed stone can adapt to the requirements of modern traffic on the road base; ② Cement-stabilized gravel has greater flexibility and adaptability than previous road base materials. For example: cement stabilized gravel, with the change of cement dosage , its 7d unconfined compressive strength can be in the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B28/02C04B103/30C04B103/10
CPCC04B40/0039C04B28/02C04B2201/50C04B2111/0075C04B2103/302C04B2103/0068C04B2103/10C04B14/00
Inventor 赵喆王鹏李华张小强王亚昀
Owner JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD