JPS58146665A - Peeling of hardened concrete - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present application is useful for stripping concrete surfaces inside a nuclear reactor where the surface is contaminated or for the purpose of repairing factory floors, pavements, walls or other concrete surfaces that are severely damaged. The surface can be easily and safely removed.

To explain the example now, the surface of the concrete roller 1 (
(see Figure 1) is cut with a cutter at regular intervals using a single or composite blade to form cutting grooves (2). Either inject the filler (3) into each groove or cut groove (2) or insert If (not shown) (see Fig. 3).
The root of cut-groove (2) 17Ac211) K cracks in the horizontal direction ff1t' tLIE4), breaks and peels (see Fig. 5), repeats this sequentially (see Fig. 6) concrete of a certain thickness. It cost 5k to peel off.

Also, for me, it would be ideal to use a hydraulic willow.

In this application, after cutting the concrete surface Wi into long strips like ridges in advance with a cutter to form cut grooves, an expandable photonic agent is applied to every other groove or each groove. After injecting or driving concrete to destroy the roots between each groove and peeling off the concrete, repeat this one after another to peel off a certain thickness, so the next step is to
Cut off at #! Repairs can be made more safely and easily than by widening the area by 11 m and peeling off the concrete equivalent to the cutting depth.

b. The thickness of the peeled part can be freely adjusted by adjusting the depth of the cut grooves and the interval between the cut grooves.

If you use a C0 self-traveling cutter or the like and an automatic filling machine, everything will not be done manually and will be less expensive.

e. Post-treatment is easy because it peels off into small parts.

[Brief explanation of the drawing]

1 to 6 show process diagrams for carrying out the present application. Patent applicant: 1 person other than Toda Construction Co., Ltd.

Claims (1)

[Claims] 111 After cutting several grooves on the surface of the concrete with a cutter, inject or hammer in an expanding brightening agent into the grooves every other groove or in each groove. This hardened concrete peeling method is characterized by destroying the roots between each groove and peeling off the concrete, and then peeling off the concrete to a certain thickness repeatedly.