JPS6176587A - Method of pouring resin grout material - Google Patents

Abstract

PURPOSE:To improve fludity of grout material by bearing effect to lessen contact resistance, and to improve deaerating properties by pouring the resin group material consisting of a thermosetting resin, aggregate and glass beads by a pouring machine having a slant. CONSTITUTION:A resin group material consisting of (A) 100pts.wt. thermosetting resin (preferable example; epoxy resin, urethane resin, unsaturated polyester resin, etc.), (B) preferably 100-500pts.wt. aggregate (e.g., silica sand, calcium carbonate, aluminum oxide, etc.), and (C) preferably 5-70pts.wt. glass beads having preferably <=300mu particle diameters is pured to the feed part 1 of the feeder 5. The grout material is passed through the slit 3, made to flow and to fall through the sloped member 4, small foams admixed in the material are floated on the surface of the grout material, and the greater part of the foams is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for injecting resin grouting material.

Conventionally, heavy machinery with large weights was placed on concrete floors.

When installing a plant, cement-based grout was injected into the part, the base was fixed, and heavy machinery such as a plant was fixed. However, with cement-based grout, it takes a long time to harden and develop strength after injection, making it impossible to shorten the construction period. In addition, resin grouting materials were sometimes used to shorten the curing time, but in order to suppress curing shrinkage of the resin, adjust pot life, suppress reaction heat, and reduce costs, the aggregate was used to exceed the weight of the resin. If the resin grout is mixed with other resins, the fluidity of the resin grout material will decrease and the injection time will become longer. In addition, the expected strength could not be obtained because the resin was cured with bubbles mixed in.

The present invention relates to a resin grout injection method that solves these problems.

- The resin grout material used in the present invention is preferably a room temperature curing type such as thermosetting resin, urethane resin, or unsaturated polyester μ resin. Further, an antifoaming agent may be used in the resin as appropriate. Aggregates having a particle size of 0.005 to 5 ff are suitable, and examples include Ia5<sand, calcium carbonate, aluminum oxide, etc., but there are no particular restrictions as long as the strength after hardening is ensured. The blending ratio of the aggregate to the resin varies depending on the particle size, shape, etc. of the aggregate, but in order to ensure the strength of the resin grout material, it should be /1)<1~? One part is compatible.

Fuss beads are mixed into the resin together with aggregate, but the particle size of Fuss beads is 3.
00 μm or less is preferable, and a suitable blending ratio is 5 to 70 parts by weight per 100 M parts of aggregate. Particle size 300
If it is more than μ, the effect of improving the fluidity of the resin grout cannot be obtained. If the blending ratio is less than 5%, the effect of improving fluidity cannot be obtained, and if it is more than 70%, it will separate from the resin during curing, which is not preferable. Mixing glass beads improves the fluidity and defoaming properties of the grout, but the reason for this is that glass beads are spherical and smooth, so when glass beads are present between aggregates, compared to aggregates, the The contact between the material and the glass beads and between the resin and the glass beads is small, and it is considered that the bearing effect that reduces the contact resistance improves the fluidity of the resin grout and improves the defoaming properties.

Next, we will explain the injection machine used to inject the C-resin paste material.

Figures 1 and 2 are non-inventive (C) of the injection machine used, 5
FIG. 1 is a plan view and a 111 side view of one example, and shows a charging section (1) with a substantially V-shaped @ surface at the top, a slit adjustment tool (2) attached to the side wall of the charging section (1), and a resin grout. It is assembled from a tilting body (4) on which a stream (Hayashi...) is swept away and legs (6) attached so as to be openable and closable. The slit adjuster (
2) is a method in which a bolt (2C) is connected to the upper part of the plate (2b), and the bolt (2C) is connected to the upper part of the 2C side.
C7) A linkage 2a) having a screw hole that engages with the threaded portion is fitted, and rotation of the linkage 2a) causes the plate ■
2b) can be moved up and down. The amount of resin grout poured into the input part (1) is pushed out to the inclined body (4) through the flow rate adjustment 2 by operating the slit adjustment tool (2). Among the bubbles mixed in the resin grout 9, most of the bubbles float to the surface of the resin grout A during the time when the resin grout A falls more than the slit width, and disappear due to the tension on the surface when flowing.

The resin grout mass flows over the ramp (4) and is poured into the recess (9) of the concrete floor (8). The recess (
9) has a support bolt (7) attached to it)
GO is arranged, and the resin grout material is poured until it contacts the back surface of the 11 board plate α0, and the resin grout material is poured into the recess (
9) Fill. As the filled resin grout material hardens, the concrete floor (8), the chrome plated V-to-αQ, are firmly integrated. Since the hardening time of wood is much shorter than that of cement, strong K can be obtained in a short time, and M
Installation of large amounts of machinery can be done in 7Rs.

The height, angle, cross-sectional shape, etc. of the spout may be determined in accordance with the composition, properties, injection amount, etc. of the fat replenishing gout material. The inclined body may be open-shaped or vibrator-shaped, but
! A shape with a wider plate-like bottom is preferable because the contact area with air is more effective.
Even if it is open, the flow rate can be confirmed and the handling can be carried out easily.

The grouting material according to the present invention solves at once the problem that the fluidity of conventional resin grouting materials is greatly reduced due to the mixing of aggregate, and the injection method according to the present invention, It is possible to inject resin grout while effectively defoaming the resin grout, and exhibits extremely excellent workability. Furthermore, compared to conventional cement-based grout materials, the injected resin grout material has a shorter curing time and can achieve curing strength in a shorter period of time (C), and can quickly install machinery such as construction work. It has become possible to shorten the construction period.Also, when chemical plant equipment is installed, conventional cement-based grouting materials suffer from problems such as corrosion due to leaking chemicals and loss of strength. However, since the resin grout material has excellent corrosion resistance, this is no longer a problem.

Next, the present invention will be explained with reference to examples.

Example 1゜The resin grout size of the formulation shown in Table-1 was 2QOx40X800.
The pouring time, effective support ratio, and strength of pouring are shown in the table below. It was as follows.

Comparative Example 16 A cement grout material and a resin grout material having the composition shown in Table 1 were poured into the same container as in Example 1 by gravity pouring. The required pouring time, effective support ratio, and compressive strength were 9 as shown in Table 2.

Table-1 (Unit: parts by weight) Table-2 (*) Effective support rate Surface of grout poured into the container Press the glass plate against the air bubble mixture rate. The percentage after subtracting

[Brief explanation of the drawing]

FIG. 1 is a plan view of an injection machine (5) according to an embodiment of the present invention;
Figure 2 is a side view of the injection machine (5), and Figure 3 is the recess (9) in the concrete floor (8) where the top plate αQ is installed.
FIG. 3 is a diagram showing a state in which a resin material is poured into the container.

Claims (1)

[Claims] A resin grout injection method characterized by pouring a resin grout consisting of a thermosetting resin, aggregate, and glass beads using a pourer having a tilted body.