KR100463006B1 - Manufacturing method of concrete affinity type adhesion unvulcanize rubber waterproof sheet and construction method for using the waterproof sheet - Google Patents

Abstract

The present invention discloses a method for producing a concrete-friendly adhesive unvulcanized rubber index material and a construction method using the same. According to this manufacturing method, first, a promoter, a tackifier, a reinforcing agent, a filler, and a softener are added to the rubber main material, followed by mixing and stirring in a mixer. It stirs again, adding a vulcanization accelerator to this mixing and stirring mixture, and produces adhesive unvulcanized rubber | gum. The resulting viscous unvulcanized rubber is extruded or rolled and cut into a predetermined length while being taken out in a sheet form. A sticky unvulcanized rubber index material is produced by attaching a release paper coated with silicone to the sticky unvulcanized rubber sheet. The construction using this rubber index material attaches the unvulcanized sticky rubber in the state of raw material or the rubber which is converted into vulcanized rubber at normal temperature to the center of the rudder part of the first concrete structure installed, and the rudder part The new concrete is poured, and the construction is completed by bonding concrete and concrete together by using the index member of the present invention as an intermediate medium. According to this construction method, it is possible to prevent the inundation or leakage at the connection portion of the concrete and concrete in the construction of the concrete structure of civil engineering and construction.

Description

MANUFACTURING METHOD OF CONCRETE AFFINITY TYPE ADHESION UNVULCANIZE RUBBER WATERPROOF SHEET AND CONSTRUCTION METHOD FOR USING THE WATERPROOF SHEET}

The present invention relates to a method of manufacturing a concrete-friendly tacky unvulcanized rubber index material and a construction method using the same to prevent the inundation or leakage at the connection portion of concrete and concrete in the construction of concrete structures of civil engineering and construction.

The large and complex concrete structures of civil engineering and construction are not usually completed in one concrete pouring, but after the concrete is poured to make partial structures, the concrete parts are connected in series and then the connecting parts are cast into concrete. Or complete complex civil and architectural structures.

However, the mating part of the pre-installed concrete and the new concrete do not adhere to each other, and in particular, the connection part between the concrete and the concrete due to stretching and relaxation or floating settlement due to temperature change. There is a gap in the water, which leads to water leakage or flooding. Such leakage or flooding will cause severe damage to the finished structure, resulting in sub-work. As such, in order to prevent leakage and inundation of the concrete-concrete connection part, conventionally, a flat copper plate is used as an index material on the other machined concrete, or a polymer synthetic resin such as PVC or EVA is used. I tried to get the exponent effect by inserting only half of the index water and then placing it in concrete that connects the remaining half after curing, but the effect was not perfect, especially the segment. (Segment) of the cured concrete and the connection of concrete or the connection portion of the PC structure had a problem that does not have any effect of the index material.

On the other hand, insert half into the other part of concrete where copper plate or water-based material made of polymer synthetic resin such as PVC and EVA is pre-installed, and make the half protrude to the outside, and then insert it into the joint surface of the newly connected concrete. If you can get an index effect to some extent initially, due to the shrinkage and relaxation of the concrete, and the settling of the concrete over time, the contact (bonding) surface of the index material and the concrete is separated, causing a gap. Through this gap, construction defects are caused by inundation or leakage.

As a remedy for this, if the water-expandable rubber index member that expands three to seven times in contact with water is fixed with adhesive or nail to other parts of the concrete, it is flooded or leaked when the concrete is poured to connect it. The water-expandable rubber index material inserted into the concrete-concrete connection can absorb water and increase the volume, thereby preventing leakage. However, after installing the water-expandable rubber index material in the rudder part, it is rained before placing concrete for connection, or there is a lot of water in the construction site, so it is rained before pouring the concrete newly installed in the water-expandable rubber index material or water on site When the water-expandable rubber index member expands and becomes large in length and becomes long in contact with this contact, ie, when the rubber index member expands, bends and bends in a meandering form, the new concrete is poured, and thereafter, moisture This dryness reduces the volume of the index component. At this time, a space is generated between the concrete and the concrete, through which the flooding and leaks, and eventually the construction defect in the concrete construction joint occurs.

In order to solve this problem, the present invention provides a method for producing a viscous unvulcanized rubber having affinity with concrete strongly adhered to raw concrete (water kneaded concrete or cement kneaded with water). For the purpose.

Another object of the present invention is to provide a method of attaching the adhesive rubber prepared by the above manufacturing method to the other part of the concrete is already installed and then connect the new concrete to the concrete and semi-permanently completely bonded to the concrete construction. Is in.

1 to 7 are views showing a construction method using a concrete-friendly adhesive tacky unvulcanized rubber index material prepared according to the production method of the present invention.

According to a feature of the present invention for achieving the above object, the present invention is characterized by a method for producing a sticky unvulcanized rubber index material that reacts to concrete, that is, has affinity with concrete. This manufacturing method comprises the steps of mixing and stirring in a mixer by adding an accelerator activators, a tackifier, a reinforcing agent, a filler, a softener to the rubber base material, and stirring it again while adding a vulcanization accelerator to the mixed stirred mixture. Producing sulfur rubber, extruding or rolling the resulting sticky unvulcanized rubber into a sheet form and cutting it to a predetermined length, and attaching a release paper coated with silicone to the sticky unvulcanized rubber sheet The adhesive unvulcanized rubber index material produced by this manufacturing method can be used to be attached to each other by being attached in a sheet form between concrete and concrete. Also, since it is converted into a vulcanized rubber state at room temperature, the exponential effect is It can be further improved.

According to another feature of the present invention, the method for producing a concrete-friendly adhesive unvulcanized rubber index material is a step of mixing and stirring in a mixer by adding a tackifier, reinforcing agent, filler, softener to the rubber material, and the mixed stirred adhesive mixture Cutting to a certain length while extruding or rolling to draw a sheet, and attaching a release paper coated with silicone to the adhesive rubber sheet. When the adhesive unvulcanized rubber index material produced by this manufacturing method is used in the form of a sheet between the concrete and the concrete is connected to each other, it can be completely adhered to the concrete and can improve the index effect.

According to another feature of the invention, the construction method for building index,

Dissolving 50 weight of the adhesive unvulcanized rubber in 150 weight of toluene to prepare an adhesive primer, and applying the adhesive primer to one side or both sides of the cured concrete surface or stainless steel, tin or soft PVC, And attaching the concrete-friendly tacky unvulcanized rubber index material prepared according to the above method to the surface to which the primer is applied. By this construction method, the tacky unvulcanized rubber index material acts as a kind of concrete and can be integrally bonded with concrete to obtain a perfect index effect.

Hereinafter, an embodiment of a method of manufacturing a concrete-friendly adhesive rubber index member and a method of construction using the rubber index member will be described in detail.

First, the manufacturing method of the tacky rubber index material is described, by adding a promoter, tackifier, reinforcing agent, filler, softener to natural rubber and / or synthetic rubber, or a Kneader Mixer (Knerader Mixer) which is a closed mixing machine or Mix and stir evenly in a Bambery Mixer. The mixed stirred mixture is added to a vulcanization accelerator while cooling in an open roller for rubber mixing, and then stirred again to produce a sticky unvulcanized rubber. The resulting sticky unvulcanized rubber is extruded or rolled into a predetermined width (10 mm to 50 mm) and a thickness of 2 mm to 10 mm in an extruder or calender machine, and cut into a predetermined length while being taken out in a sheet form. Finally, the release paper coated with silicone is attached to the sticky unvulcanized rubber sheet.

The adhesive unvulcanized rubber sheet manufactured by the above method is provided with adhesiveness and is self-adhesive as unvulcanized rubber in a soft and soft state like clay. In addition, when the above-mentioned sticky unvulcanized rubber sheet in the dough state is attached to concrete or mortar kneaded with water, the concrete or mortar is strongly bonded while curing and curing. After the construction is completed, it is gradually activated at room temperature, and after 1 to 2 months, the sticky unvulcanized rubber is converted into vulcanized rubber, which is characterized by a strong adhesive effect on concrete or mortar.

Therefore, the construction method applied to the joint portion of the concrete or the expansion joint of the concrete, etc. according to the present invention is a room temperature vulcanized sticky unvulcanized rubber index material that is gradually converted to vulcanized rubber by gradually activating at room temperature after construction with sticky unvulcanized rubber. If it is desired or required by the consumer and wants to construct a viscous unvulcanized rubber index material without converting it into vulcanized rubber, it becomes a viscous unvulcanized rubber index material by excluding the addition of the accelerator and vulcanization accelerator in the above production method.

As used herein, the term “tacky unvulcanized rubber” refers to rubber that is raw, that is, dough, and that the vulcanized rubber state refers to rubber that is ripe (molded). Viscous unvulcanized rubber or vulcanized unvulcanized rubber which is converted to vulcanized rubber at room temperature is characterized by the inherent adhesiveness of the rubber itself and synergistic action of added resins and minerals such as calcium carbonate. The kneaded wet cement mor-tal is strongly bonded with cement concrete or mol-tal in the curing process.

1 to 7, a construction method for the index between concrete and concrete using the adhesive unvulcanized rubber index material produced by the above-described manufacturing method will be described.

First, as shown in Figures 1 to 3, the sticky unvulcanized in a flexible and soft dough like clay, which is endowed with the adhesiveness and self-adhesion produced by the above-described manufacturing method. Alternatively, the sticky unvulcanized rubber 30 in the form of room temperature vulcanization is simply attached to the center of the other part of the concrete (10, 10a, 10b, ...) which is already installed, and connected to the other part to make the live concrete (water and Kneaded concrete: 12, 12a, 12b, ...). After the concrete is poured, the concrete structure is connected, and a construction method for a perfect index of the building is completed. The tackified rubber is tackified unvulcanized rubber packing is vulcanized at room temperature can be applied to any one of the joint portion and the expansion joint coupled between the concrete concrete. In this way, perfect index performance can be achieved.

In addition, as shown in Figures 4 to 7, the concrete-friendly adhesive non-vulcanized rubber (220, 220a) produced by the above-described method on the concrete expansion joint made of stainless steel, tin or soft PVC chopped to a certain size It can be constructed by bonding to both sides of the index plate (210, 210a). Reference numeral 120,300 is a formwork, 110 is a joint filler board, 100 is concrete.

The index plates 210 and 210a may have a plurality of holes having a plurality of circular or quadrangular shapes, and may be constructed such that the unvulcanized rubber is adhered to both surfaces thereof.

In addition, the adhesive primer is prepared by dissolving 50 weights of the adhesive unvulcanized rubber in 150 weights of toluene, and then using the adhesive primer on one side of the cured concrete surface or stainless steel, tin or soft PVC index plates 210 and 210a. It is applied to both sides, and then completes the construction for building index by attaching the concrete-friendly tacky unvulcanized rubber index member (220, 220a) to the surface on which the primer is applied.

The present inventors adhered to the sticky unvulcanized rubber with water and kneaded wet mortar, and after the mortar was cured and cured, the sticky unvulcanized rubber and the mortar were bonded to each other. Was 7Kg / cm ² and the shear strength was measured to be 4Kg / cm ² , and it was found that the viscous unvulcanized rubber of the present invention and the molar-deal are very strongly bonded.

Converted to vulcanized rubber at room temperature according to an embodiment of the present invention, the room temperature vulcanized unvulcanized adhesive rubber packing is formed of the following components.

1) Rubber base: one of natural rubber or synthetic rubber -------------- 100g

2) Accelerator: Magnesium Oxide ----------------- 5g

Stearic Acid --------------------- 2g

Zinc Oxide ---------------------------- 5g

Sulfur -------------------------------- 2g

3) Tackifier: Polybutene ------------------------ 10g

Petroleum Resin --------------------- 5g

Cumarone Resin -------------------- 7g

Rosin ---------------------------------- 5g

4) softeners; Process Oil -------------------- 12g

DOA (Diocy1 Adipate) ---------------------------- 20g

5) fillers; Calcium Carbonate ------------------- 20g

Clay ----------------------------------- 20g

6) Reinforcement: White carbon --------------------------- 8g

Carbon Black -------------------------- 6g

7) Vulcanization accelerator: DM -------------------------------------------- -2g

M ----------------------------------------------- 1g

T / T --------------------------------------------- 1g

TRA --------------------------------------------- 2g

On the other hand, the non-vulcanized adhesive rubber index material (packing) according to an embodiment of the present invention is converted to a vulcanized rubber at room temperature, among the components forming the unvulcanized adhesive rubber packing to be vulcanized at room temperature (sulfur) When it is formed of components other than phosphorus vulcanizing agent, active agent such as magnesium oxide, zincation, stearic acid) and vulcanization accelerator, it becomes unvulcanized sticky rubber which cannot be converted into vulcanized rubber.

Among the components constituting the rubber packing, synthetic rubber includes SBR rubber, IR rubber, BR rubber, EPT rubber, IIR rubber, CR rubber, NBR rubber, Urethan rubber, and CPE rubber, SBS rubber, SIS rubber and the like. The rubber base has inherent physical properties and characteristics by type. Depending on the purpose of use or the demands of the consumer, this rubber material may be used either alone or in combination with natural rubber and synthetic rubber, or by mixing two or more synthetic rubbers of different types. Also good. The present inventors tested the results. Among the synthetic rubbers, the rubber packing made of CR rubber or IIR rubber (spray rubber) as the rubber base was excellent in adhesive strength, durability, heat resistance, and chemical resistance. It exhibited physical properties.

The method of manufacturing the rubber packing according to such a component and the ratio of components is, first, a natural or synthetic rubber (SBR rubber, IR rubber, in a Kneader Mixer or Banbury Mixer, a hermetic mixing machine). EPT rubber, IIR rubber, CR rubber, NBR rubber, Urethan rubber, CPE rubber, SBS rubber, SIS rubber) is added and stirred. During this stirring, magnesium oxide (5 g), stearic acid (2 g), zinc oxide (5 g), and sulfur (5 g), which are accelerators, are mixed with the rubber base (100 g).

In addition, polybutene (10 g), petroleum resin (5 g), guarone liquor (7 g), and ro-gin (5 g), which are tackifiers, were added and stirred, and then calcium carbonate (20 g) and cray (20 g), which were fillers, were stirred. While adding and stirring, white carbon (8 g) and black carbon (6 g) as reinforcing agents are added, and 12 g of process oil and 10 g of DOA as softeners are added and stirred while stirring.

After cooling the viscous rubber in the unvulcanized state prepared in the closed mixing and stirring step, in a rubber roller, the rubber dough is stirred again, DM (2 g) and M (1 g) as a vulcanization accelerator. When T, T (1 g) and TRA (2 g) are added and stirred, a sticky rubber dough is prepared which is converted to vulcanized rubber at room temperature.

The rubber dough is extruded to a certain width and thickness according to the size of the connection portion (10mm to 50mm in width and 2mm to 10mm in thickness) to be attached to the other machine to be constructed by jointing concrete in an extruder. And, while attaching the release paper coated with a silicone coating on both sides of the extruded rubber packing, cut to a certain length (length), and rounded, converted to vulcanized rubber at room temperature for use in the construction method of concrete joints, room temperature vulcanized rice Sulfur adhesive rubber packing is produced.

On the other hand, as described above, the adhesive rubber packing in the unvulcanized state, except for the accelerator and the vulcanization accelerator in the process, if you want to manufacture the unvulcanized rubber with a color such as blue or yellow, except black carbon bag By adding the same amount to carbon and adding a small amount of the desired pigment, unvulcanized rubber of the desired color is produced.

In addition, if you want to manufacture the index material using the adhesive unvulcanized rubber of the present invention for the purpose of the index of the expansion joint of concrete, to prepare the adhesive rubber dough formed by stirring by the above-described manufacturing method, this rubber dough calender machine In order to fit the width of the sheet and the soft PVC (100 mm to 300 mm, thickness 2 mm to 10 mm) of the sheet and the tin metal in the rolled to a certain width and thickness, and cut out to a constant length. The sheet is then rolled up with a release paper on one side, and then both sides of the sheet made of stent and tin or soft PVC cut into pieces of constant size (0.3mm to 1mm, width 100mm to 300mm) and length (10m to 30m). To adhere to. At this time, the adhesive rubber dough may be directly bonded, but in order to obtain a more reliable adhesive effect, a plurality of round or square holes are formed in the stainless steel and the tin or soft PVC index material, and then the adhesive rubber 50 of the present invention is added to the weight of 150 toluene. Applying a primer (adhesive) dissolved by weight and attached to the adhesive unvulcanized viscous rubber dough drawn by rolling in a constant width and thickness in the above-described calender machine is carried out even more perfect adhesion. 4 to 7, the half of the index material made of stretch-tin, tin, or soft PVC bonded to both sides of the adhesive unvulcanized rubber manufactured for expansion joints is inserted into the center of the other part of the concrete, thereby removing the concrete (100). ) And place the other half in the center of the new shedding part (200,200a) and when the concrete is poured, the sticky unvulcanized rubber of the present invention adhered to the center of the concrete, the metal index of tin or tin The index material, which is a polymer synthetic resin such as PVC, is inserted to resist shrinkage and relaxation of expansion joints, and the viscous unvulcanized rubber attached to both ends through the index material reacts strongly with concrete.

Therefore, when the construction using the sticky unvulcanized rubber prepared by the manufacturing method of the present invention, by obtaining the effect that the concrete and concrete are integrally bonded around the sticky unvulcanized rubber index material, the conventional index method and Otherwise, the source is completely blocked by infiltration or leakage to achieve a perfect construction effect.

Claims (10)

Mixing and stirring in a mixer by adding a promoter, a tackifier, a reinforcing agent, a filler, a softener to the rubber material; Stirring again while adding a vulcanization accelerator to the mixed stirred mixture to produce a sticky unvulcanized rubber; Extruding or rolling the resulting sticky unvulcanized rubber and cutting it into a sheet while cutting it to a predetermined length; And A method for producing a concrete-friendly adhesive tacky unvulcanized rubber index material comprising the step of attaching a release paper coated with silicone to the tacky unvulcanized rubber sheet. The method of claim 1, The step of producing the sticky unvulcanized rubber includes adding the vulcanization accelerator while allowing the mixture to cool in an open roller for mixing rubber, thereby making it vulcanized at room temperature. Method for producing a sticky unvulcanized rubber index material. The method of claim 1, The rubber main material is natural rubber and / or synthetic rubber, and the accelerator includes magnesium oxide, stearic acid, zincated and sulfur, and the tackifier includes polybutene, petroleum resin, guaronic resin, and rosin, The filler comprises calcium carbonate and cray, the softener comprises process oil and dioctyl adipate, the reinforcing agent comprises white carbon and carbon black, and the vulcanization accelerator is DM, M, T / T. And TRA. The method of manufacturing a concrete-friendly tacky unvulcanized rubber index material comprising TRA. The method of claim 1, wherein the unvulcanized rubber index member is a pressure-sensitive adhesive rubber vulcanized at room temperature, a joint portion or expansion joint bonded between the cement concrete, the method of producing a concrete-friendly adhesive unvulcanized rubber index member. Adding a tackifier, a reinforcing agent, a filler, a softener to the rubber material and mixing and stirring the mixture in a mixer; Extruding or rolling the mixed stirred viscous mixture into a sheet to cut it to a constant length; A method for producing a concrete-friendly adhesive vulcanized rubber index material comprising the step of attaching a release paper coated with silicone to the adhesive rubber sheet. The method of claim 5, A method of manufacturing a concrete-friendly tacky unvulcanized rubber index material, comprising adhering the tacky unvulcanized rubber to both sides of an index plate made of stainless steel, tin, or soft PVC cut into a predetermined size. The method of claim 6, The index plate has a plurality of holes having a plurality of circular or rectangular shapes, and the adhesive unvulcanized rubber is bonded to both sides of the method for producing a concrete-friendly adhesive unvulcanized rubber index member. Dissolving the adhesive unvulcanized rubber in toluene to prepare an adhesive primer, Applying the adhesive primer on one side or both sides of the cured concrete surface or stainless steel, tin plate or soft PVC; And attaching the adhesive unvulcanized rubber to the surface to which the primer is applied. The method of claim 8, The viscous unvulcanized rubber is mixed and stirred by adding a promoter, a tackifier, a reinforcing agent, a filler, a softening agent to the rubber material, and then adding a vulcanization accelerator to the mixture and stirring it again, and then extruding or rolling it into a sheet form. Construction method for building index, characterized in that the drawing. The method of claim 8, The index plate has a plurality of holes having a plurality of circular or rectangular shapes, and the adhesive unvulcanized rubber is bonded to both sides of the method for producing a concrete-friendly adhesive unvulcanized rubber index member.