JP2011102519A - Construction management method of detachment/falling prevention construction through the use of ultrahigh-pressure washing for substrate mortar layer or tile sticking mortar layer or the like in concrete frame structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction management method capable of preventing quality failure as much as possible considering the possible occurrence of the quality failure which is pointed out because of worker's influential skills, uncertain criteria of conditions of cutting scars (depth and width), and particularly criteria of an operating speed determined by a worker based on the conditions of the cutting scars, which criteria are difficult to approve even if the criteria are derived from the circumstances wherein the construction management method of a construction method of substrate treatment through the use of ultrahigh-pressure washing for the purpose of preventing a substrate mortar layer or a tile sticking mortar layer in a concrete frame structure from being detached/falling is generally based on the management criteria of an operation method of a nozzle of an ultrahigh-pressure washer or on the management criteria of the extent of the cutting scars on the surface of the concrete frame structure made by the ultrahigh-pressure washer. <P>SOLUTION: By executing redundant management in a concentric fashion based on a boundary sample for acceptable finish quality which is manufactured according to a sheen test method and possessed by each of a worker, a constructor and an orderer, decision criteria can be provided which are much more objective and visible relative to the conventional construction management method, thereby largely reducing the possibility of the occurrence of the quality failure. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method for managing the surface treatment of an outer wall surface, and by forming a rough surface on the surface of the concrete frame by ultra-high pressure cleaning and increasing the pressure-bonding force between the concrete frame and the ground mortar layer or tiled mortar layer, It is related with the construction management method aiming at preventing the peeling and peeling of the ground mortar layer or tile-attached mortar layer.

  The foundation mortar layer or tile-attached mortar layer in the concrete enclosure is peeled off and peeled off mostly at the interface between the concrete enclosure surface and the foundation mortar layer or tile-attached mortar layer. Therefore, as one of the measures to prevent the peeling and peeling of the mortar layer in the concrete frame related to earthquake resistance measures, etc., a rough surface is formed on the surface of the concrete frame after placing the concrete using ultra-high pressure water. Although a method of increasing the crimping force is provided, currently the management method for the construction is the management standard for the operation method of the nozzle of the ultra-high pressure washer, and the extent of the cutting rod on the concrete body surface by the ultra-high pressure washer The construction management method based on the management standard is proposed. For example, the separation / peeling of the surface of the concrete body and the mortar layer by the management method such as the standard of the nozzle operation speed to the concrete body surface, the standard of the pressure of ultra-high pressure water, and the standard of the number of cuttings to the concrete body surface Various construction methods have been proposed, such as prevention of such problems.

Many of the standards currently used in the super high pressure cleaning management method are such that the nozzle operating speed is 2 to 3 minutes / m ² , the ultra high pressure is 150 Mpa or more, and the number of cutting rods is 1 to 2 / cm ² . The method is adopted. However, this standard is a construction standard related to the working method, and is often influenced by the skill of the worker, and is not a standard that clearly grasps the state (depth and width) of the cutting rod. In particular, in terms of operating speed, it is the actual situation that an operator works while judging according to the cutting condition, and it is difficult to become an accurate certification standard, and there is a possibility of causing a quality error. Then, this invention makes it a subject to provide the construction management method which employ | adopts an objective and visible system and eliminates a quality error as much as possible.

In order to solve the above problems, the invention of claim 1 provides to ensure the quality of the surface treatment work by the ultra-high pressure washer by a series of systematic management methods. That is, in the conventional construction management method, only the construction standard of the working method is provided, and the objective and visible construction standard is not shown. Therefore, the present invention provides a construction management method that eliminates quality errors as much as possible by securing these standards with a series of systematic management methods.
The invention of claim 2 provides a management method aiming to prevent quality errors in advance by concentric duplication management of the operator, the installer and the orderer. In other words, with the conventional construction management method, the actual situation is that workers, managers, and orderers have made decisions based on empirical rules, visual inspection, and palpation, and the possibility of mistakes in quality judgment cannot be excluded. It was. The present invention provides a management method aimed at preventing quality errors by concentric duplication management using objective and visible criteria.
The invention of claim 3 has a visual and objective standard of quality-finished finished samples prepared in advance by each of the operator, the installer, and the orderer, and concentric overlap management based on the samples. Provided a management method of performing similar inspections. That is, the operation speed of the nozzle is 2 to 3 minutes / m ² , the ultra-high pressure water pressure is 150 Mpa or more, and the number of cutting rods is 1 to 2 / cm ² . We provided a management method for making more objective judgments by making a pass / fail judgment by comparing palpation with visual inspection and palpation of the sample to be examined.
The invention of claim 4 is a management method that establishes an objective and visible standard by using a quality-accepted finished sample produced based on the glossiness test method as an inspection standard, and prevents quality errors in advance. Provided. The glossiness test method is a method of setting the glossiness after the base treatment from the relationship between the adhesion interface fracture rate after the strain followability test and the glossiness, which is an index for preventing tile peeling. In other words, try to make the pass / fail judgment as objective and visible as possible by measuring the glossiness of the tile surface and quantifying the appearance of the tile surface by embossing and copying the unevenness of the concrete surface on the aluminum foil. It is what. By adopting a quality-accepting finished sample manufactured based on the test method, it is possible to prevent as much as possible the blurring of judgment based on conventional visual and palpation as much as possible by comparing the cutting state with the sample.

  As described above, according to the present invention, a quality acceptable finish sample produced based on the glossiness test method is possessed by each of the operator, the installer, and the orderer, and concentric overlap management is performed based on the sample. The construction management method for the prevention of peeling / peeling of the foundation mortar layer or tiled mortar layer in the concrete frame by ultra-high pressure cleaning, in which the same inspection is performed, is the conventional management method, operation of the nozzle of the ultra-high pressure washer Compared with the construction management method based on the management standard for the method and the management standard for the degree of cutting flaws on the concrete body surface by the ultra-high pressure washer, it can provide much more objective and visible judgment standards, The possibility of mistakes was greatly reduced.

Hereinafter, the actual form of the present invention will be described.
The construction management method of the work for preventing peeling / peeling of the foundation mortar layer or tiled mortar layer in the concrete frame by the ultra-high pressure cleaning of the present invention is composed of an ultra-high pressure cleaning machine, a gloss tester, and an acceptable finished concrete sample. .
First, using an ultra-high pressure washer, a large number of cutting rods are attached to an appropriately sized concrete piece that can be carried. The glossiness of this concrete piece is measured using a glossiness tester. The numerical value of the glossiness is set based on the relationship between the adhesion interface fracture rate after the strain follow-up test and the glossiness, which is an index for preventing tile peeling, and a concrete piece below the numerical value is used as a quality acceptable finish sample. To do. Using this sample as a limit sample, each of the operator, the installer, and the orderer performs concentric duplication management.

Claims (4)

In concrete ground treatment work to prevent tile peeling or peeling with an ultra-high pressure washer, the quality of the ground treatment work is ensured by a series of systematic management methods. Construction management method for prevention of peeling / peeling of ground mortar layer or tiled mortar layer, etc. The above systemized management method is a management method for the purpose of preventing quality errors in advance by concentric duplication management by the operator, the installer and the orderer. The construction management method for preventing peeling / peeling of a ground mortar layer or a tile mortar layer in a concrete frame by ultra-high pressure cleaning as in claim 1, characterized by ensuring the quality of the ground surface treatment work. The concentric duplication management is to carry out duplication inspection in which three of each of an operator, a contractor, and an orderer possess a quality-accepted finish sample prepared in advance and perform the same inspection based on the sample. A concrete frame by ultra-high pressure cleaning as in claim 1, characterized in that the quality of the ground treatment work is ensured by the management method in a series of systematic management methods that prevent quality mistakes in advance. Management method for prevention of peeling / peeling of ground mortar layer or tiled mortar layer, etc. The quality-accepted finish sample is manufactured based on a glossiness test method that can be objectively managed, and ensures the quality of the ground treatment work to prevent quality errors by the management method using the sample. Construction management method for prevention of peeling / peeling of ground mortar layer or tiled mortar layer in concrete frame by ultra-high pressure washing as in claim 1