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Method for repairing and resetting road manhole cover

A reset method and manhole cover technology, applied in artificial islands, underwater structures, buildings, etc., can solve problems such as unsatisfactory repair quality of well circles, cracking and damage, etc., and achieve easy quality assurance, extended service life, and good durability Effect

Pending Publication Date: 2022-02-18
SHANGHAI ERSHIYE CONSTR CO LTD +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] The repair method after the damage of the common road concrete well circle is to chisel out the damaged well circle, clean up the slag, make steel bars again according to the atlas, bind the steel bars on site, and pour concrete. The maintenance time is not less than 7 days, otherwise it is easy to crack and damage gradually under the driving load; in reality, due to the difference in the skills of the operators and the influence of the actual traffic environment on the site, the repair quality of the well ring is often unsatisfactory

Method used

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  • Method for repairing and resetting road manhole cover

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Embodiment Construction

[0018] The present invention is further illustrated below by specific examples.

[0019] Such as figure 1 Shown, a kind of repair and reset method of road manhole cover, comprise

[0020] Step 1, preparing materials, including cement, slag powder, fly ash, steel slag aggregate, water reducer, biological glue, defoamer, expansion agent and polypropylene fiber, and measuring them separately;

[0021] Step 2. Put the ingredients prepared in step 1 into a blender and stir to obtain dry powder materials. The stirring time is not less than 5 minutes;

[0022] Step 3. Add water twice to the dry powder material obtained in step 2 and stir evenly. Add two-thirds of the water for the first time, and add the remaining water for the second time. The stirring time is not less than 7 minutes; Add polypropylene fibers in batches according to the set mix ratio, and stir evenly, and the stirring time is not less than 5 minutes to obtain a high-ductility concrete mixture;

[0023] Step 4. De...

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Abstract

The invention relates to a method for repairing a road well lid and rearranging the well lid by adopting high-ductility concrete. The method comprises the steps of preparing materials; stirring the prepared ingredients in a stirrer to obtain a dry powder material, adding water into the dry powder material in two times, and uniformly stirring to obtain a high-ductility concrete mixture; defining a construction area around the damaged walling crib, and adopting an electric pick or an air pick for chiseling away; keeping the construction area wet; erecting formworks in the pouring area and around the pouring area; pouring high-ductility concrete in a layered mode; performing maintenance; and removing the supporting template and putting into use. The mechanical property of the finished walling crib is improved, so that the service life of the walling crib is prolonged. Compared with the traditional construction of binding reinforcing steel bars and then pouring concrete, the method for repairing the damaged walling crib by using the high-ductility concrete has the advantages of great convenience in construction, no need of erecting reinforcing steel bars, good durability, low process requirement and easiness in ensuring the quality.

Description

technical field [0001] The invention relates to the field of municipal road construction, in particular to a method for repairing and rearranging the well covers of roads by using high ductility concrete. Background technique [0002] The repair method after the damage of the common road concrete well circle is to chisel out the damaged well circle, clean up the slag, make steel bars again according to the atlas, bind the steel bars on site, and pour concrete. The maintenance time is not less than 7 days, otherwise it is easy to crack and damage gradually under the driving load; in reality, due to the skill difference of the operators and the influence of the actual traffic environment on the site, the repair quality of the well ring is often unsatisfactory. Contents of the invention [0003] The purpose of the present invention is to provide a method for making a well circle and repairing a road well cover by using high ductility concrete. [0004] In order to achieve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14E02D29/12C04B28/00
CPCE02D29/14E02D29/128C04B28/00C04B18/141C04B18/08C04B18/142C04B2103/302C04B2103/44C04B2103/50C04B2103/0068C04B16/0633
Inventor 周晓峰徐明韩甲兴
Owner SHANGHAI ERSHIYE CONSTR CO LTD
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