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Rapid roadbed construction process

A construction technology and road bed technology, applied in roads, roads, buildings, etc., can solve the problems of low construction efficiency, easy formation of ruts, and long construction period, so as to improve construction efficiency, facilitate the mixing of aggregates, and improve construction efficiency high effect

Active Publication Date: 2022-03-18
SHANDONG LUQIAO CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Usually, there are two ways of road construction on the pavement, and cement concrete is used to repair the pavement, but the maintenance of the pavement is difficult, and the construction period is long, which makes the construction efficiency low The use of asphalt to fill the road surface has the advantages of low noise, no dust and easy cleaning, easy maintenance and repair, renewable raw materials, suitable for phased construction, short construction period, etc., and can improve construction efficiency, but ordinary asphalt has poor aging resistance. Poor durability and poor flatness retention, not only the subsidence of the asphalt will deteriorate the flatness, but also the material softens and easily forms ruts
[0004]Due to the common road bed construction technology, the construction process is cumbersome, the construction time is prolonged, and the fillers such as cement concrete and asphalt used on the road surface are not easy to process, which makes the construction low efficiency

Method used

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  • Rapid roadbed construction process
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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0059] A kind of preparation of modified SEBS, comprises the steps:

[0060] Step 1: Weigh 20g of SEBS and 200g of carbon tetrachloride, put them into a 500mL three-necked bottle with a heating jacket, and stir with a high-speed mixer to completely dissolve SEBS to obtain mixture A;

[0061] Step 2: Weigh 1 g of sodium sulfite, add it into the mixture A obtained in step 1, stir evenly to dissolve the sodium sulfite, heat to 40°C, and react at constant temperature for 5 hours to prepare mixture B;

[0062] Step 3: Weigh 2 g of concentrated sulfuric acid with a mass fraction of 75%, add it to the mixture B prepared in step 2, heat to 75° C., and react for 12 hours to prepare mixture C;

[0063] Step 4: Weigh 3g of methacrylic acid, add it to the mixture C prepared in step 3, stir evenly, react for 1h, cool to normal temperature, and recover carbon tetrachloride, filter, and use 75% mass fraction of Rinse with ethanol solution, then rinse with deionized water, put into an oven a...

preparation example 2

[0065] A kind of preparation of modified SEBS, comprises the steps:

[0066] Step 1: Weigh 15g of SEBS and 150g of carbon tetrachloride, put them into a 500mL three-necked bottle with a heating jacket, and stir with a high-speed mixer to completely dissolve SEBS to obtain mixture A;

[0067] Step 2: Weigh 0.75 g of sodium sulfite, add it into the mixture A obtained in step 1, stir evenly to dissolve the sodium sulfite, heat to 40°C, and react at constant temperature for 4 hours to prepare mixture B;

[0068] Step 3: Weigh 1.5 g of concentrated sulfuric acid with a mass fraction of 72%, add it to the mixture B prepared in step 2, heat to 60° C., and react for 10 hours to prepare mixture C;

[0069] Step 4: Weigh 2.5g of methacrylic acid, add it to the mixture C prepared in Step 3, stir evenly, react for 50min, cool to normal temperature, and recover carbon tetrachloride, filter, and use a mass fraction of 73% Rinse with ethanol solution, and then rinse with deionized water, pu...

preparation example 4

[0078] A kind of modified asphalt is prepared through the following steps:

[0079] Step 1: Weigh 85g of asphalt and 5g of modified SEBS, put them into a 500mL three-neck bottle with a heating jacket, stir with a high-speed mixer, and heat to 190°C to dissolve the asphalt and modified SEBS to prepare mixture Ⅰ ,spare:

[0080] Step 2: Weigh 10g of rubber powder, add it to the mixture I in step 1, and stir until the rubber powder is evenly mixed to obtain mixture II, which is set aside;

[0081] Step 3: Weigh 2 g of bis-2-5, add it to the mixture II obtained in step 2, stir until the bis-2-5 is dissolved, and react for 8 hours to prepare the mixture III;

[0082] Step 4: Weigh 3g of calcium carbonate, 1g of bis(2-ethylhexyl) phthalate, 2g of magnesium aluminum silicate and 3g of ethyl cellulose, and add them to the mixture III prepared in step 3 , stir to dissolve calcium carbonate, bis(2-ethylhexyl) phthalate, magnesium aluminum silicate and ethyl cellulose, react for 2 hour...

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Abstract

The invention relates to the technical field of road construction, in particular to a rapid roadbed construction process which comprises the following steps: S1, roadbed flattening: removing sundries of a roadbed, flattening and jolt-ramming; s2, width limiting of a roadbed: the width of the roadbed is limited, and baffles are mounted on the two sides of the roadbed; s3, aggregate paving: paving the aggregate on a roadbed, leveling and jolt-ramming; s4, paving a roadbed: heating the modified asphalt to 160-180 DEG C, paving the modified asphalt on the aggregate of the roadbed, and leveling the modified asphalt so that the modified asphalt is mixed with the aggregate; s5, rolling and surface finishing are conducted, wherein rolling is conducted for four times; after rolling is finished, when the pavement temperature is lower than 45 DEG C, traffic is opened; the construction method has the advantage of high construction efficiency.

Description

technical field [0001] The application relates to the technical field of road construction, and more specifically, it relates to a rapid road bed construction process. Background technique [0002] In recent years, with the development of social economy, people's living standards have improved, and the vehicle retention rate and road traffic volume have also continued to increase, making cities continue to expand and renovate driving roads. Therefore, in terms of transportation, cities need to rebuild roads or expand the way. [0003] Generally, there are two ways of road construction on the road surface. One uses cement concrete to repair the road surface, but the maintenance of the road surface is difficult, and the construction period is long, which makes the construction efficiency low; and the asphalt is used to fill the road surface, which has low noise and no dust. It has the advantages of simple cleaning and maintenance, renewable raw materials, suitable for phased ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C7/26C04B26/26
CPCE01C7/18E01C7/182E01C7/26E01C7/265C04B26/26C04B24/2688C04B18/22C04B14/28C04B14/022C04B24/045C04B22/00C04B24/383C04B14/02C04B14/04
Inventor 刘慧宁郝红升张广帅董金迎李雷波田均武平王庆马亮
Owner SHANDONG LUQIAO CONSTR
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