A kind of method for repairing and mending of concrete surface layer defect

A kind of method for repairing and mending of concrete surface layer defect

  • CN 106,760,603 A
  • Filed: 12/27/2016
  • Published: 05/31/2017
  • Est. Priority Date: 12/27/2016
  • Status: Active Application
First Claim
Patent Images

1. a kind of method for repairing and mending of concrete surface layer defect, comprises the following steps:

  • Step one:

    Former concrete strength inspection;

    The strength grade of concrete is surveyed by live resilience, judges whether concrete reachesThe concrete strength grade designed to it;

    Actual measurement concrete meets requirement can just carry out following step;

    Step 2:

    Top layer pre-processes;

    For the concrete that requirement is met in step one, the defective top layer of concrete to heavily fortified point is cutHard concrete surface, removes the dirt slag for producing;

    Step 3:

    Treatment;

    By the top layer the arrived whole feather plucking in step 2, then surface is scrubbed clean;

    Step 4:

    Preparation raw material;

    Prepare dry according to the strength grade of actual measurement concrete or higher than the strength grade of actual measurement concreteHardness expansion pea gravel concreten slurry, while structure glue A is expected to pour into clean container for stirring with B material, what A material and B expected matches somebody with somebodyThan time of the hardening time more than or equal to the dry pea gravel concreten slurry curing for ensureing structure glue;

    Step 5:

    Smearing structure glue;

    The concrete table that the structure glue uniform application that will be obtained in step 4 is obtained in step 3Layer;

    Step 6:

    Smear concrete slurry;

    The dry expansion pea gravel concreten slurry layering that will be obtained in step 4 is applied toThrough on the concrete surface layer that step 5 is obtained;

    Step 7:

    Secondary or three smearings;

    After completing step 6, when concrete slurry moisture evaporation falls 45%-55%, repeatStep 6, smears dry expansion pea gravel concreten slurry again or repeatedly;

    Step 8:

    If do not plastered in later stage concrete component surface, same water-cement ratio is used on the concrete surface layer obtained in step 7Sand finish, increases impression quality;

    To be plastered with regard to cancellation step eight if in later stage concrete component face, it is to avoid the influence later stage plasters matterAmount;

    Step 9:

    Epiphragma is conserved;

    Film is covered on the concrete surface layer that step 7 is obtained carries out moisture-keeping maintaining;

    Step 10:

    Inspection;

    Film is removed, concrete 28d checking spring ranges are carried out.Conformity assessment:

    If the new dry smeared after repairingExpansion pea gravel concreten strength grade reaches requirement, and it is as qualified to bond reliable (hollowing, does not fall off) with former concrete.

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