KR102654314B1 - Mortar for Artificial Stone Construction Manufactured from Glass-Waste Recycled Aggregate and Construction Method Using by the Same - Google Patents

Abstract

In the present invention, the surface of crushed glass waste is coated with acrylic resin to a size of 5 mm or less, and the waste dust formed by grinding the concrete waste is attached to the acrylic resin-coated surface and naturally dried at room temperature to produce 60-64 wt% of glass waste and acrylic resin. It consists of 18~20wt%, waste dust, 18~20wt%, and forms recycled aggregate with a density in the range of 1.25~1.35g/㎤, then 10~12wt% of recycled aggregate, 33~34wt% of natural aggregate, 52wt of cement. It relates to a mortar for artificial rock construction made from recycled glass waste aggregate, which is formed by mixing 2-4 wt% of additives and water to achieve a water-cement ratio of 18%.

Description

Mortar for artificial stone construction manufactured from glass waste recycled aggregate and method for constructing artificial rock structures using the same {Mortar for Artificial Stone Construction Manufactured from Glass-Waste Recycled Aggregate and Construction Method Using by the Same}

The present invention relates to a mortar used to construct an artificial rock structure with a rock surface pattern engraved on the surface. More specifically, the mortar is formed by coating the surface of crushed glass waste with an acrylic resin to a size of 5 mm or less and pulverizing the concrete waste. The waste dust is attached to the acrylic resin coated surface and dried naturally at room temperature, and is composed of 60~64wt% of glass waste, 18~20wt% of acrylic resin, and 18~20wt% of waste dust, with a density in the range of 1.25~1.35g/㎤. Glass waste recycled aggregate is formed by mixing 10-12 wt% of recycled aggregate, 33-34 wt% of natural aggregate, 52 wt% of cement, 2-4 wt% of additives, and water to form a water-cement ratio of 18%. This relates to mortar for artificial rock construction manufactured with .

In general, when creating artificial landscapes such as coasts, parks, or artificial waterfalls, structures are constructed using artificial rocks that reproduce surface patterns to have shapes and textures similar to the surfaces of natural rocks.

In order to construct an artificial rock structure, in Republic of Korea Patent No. 10-1996-0009329 (registered on July 18, 1996), a mortar layer is formed on a plate combined with a reinforcing structure lattice, and the mesh is joined to the surface with an exterior plate to create an artificial rock structure. The method of creating a rock stone plate is posted.

In Republic of Korea Patent No. 10-0926251 (registered on November 4, 2009) and Republic of Korea Patent No. 10-1134389 (registered on April 2, 2012), a frame is formed by assembling support members made of reinforcing bars, and a mesh-shaped structure is formed on the frame. A method of manufacturing or constructing an artificial rock structure is published by combining the mesh and then applying mortar to the mesh surface to form an artificial rock surface.

However, the artificial rock structure formed by this manufacturing method has a mesh formed on the outside of the mortar layer, and is easily affected by the surrounding environment such as external temperature during the curing process of the mortar, and the mortar itself contracts or expands, causing cracks in the mortar layer. This occurs, or the mortar layer separates due to rapid corrosion of the material mesh or rebar due to exposure to the external environment, and if cracks exceeding the allowable level occur in the mortar layer attached to the mesh or plate, the mortar layer is damaged and the artificial rock structure is formed. The durability and structural safety were greatly reduced.

In addition, when constructing an artificial rock structure using the above method, the process time required to form a reinforcing bar support structure in the shape of the artificial rock structure, attach a mesh to the reinforcing bar support structure, and then apply mortar and cure it significantly increases the process time. had increasing problems.

In order to solve the above problem, Republic of Korea Patent No. 10-1997490 (registered on July 2, 2019) installs a mesh between two or more mold frames and fills and cures the mortar to suppress the occurrence of cracks in the mortar and to When pouring mortar at the connection between artificial rock blocks to construct a rock structure, the mesh protruding from the side of the connection between artificial rock blocks suppresses the occurrence of cracks at the connection between artificial rock blocks, thereby improving the durability of the artificial rock structure. Posting the method.

The mortar used in the construction of artificial rock structures has excellent strength, durability, fire resistance, and water resistance, and has excellent properties as an inorganic cementing material, making construction simple and relatively low price.

Mortar is formed by mixing natural aggregates such as rocks, gravel, or sand with binders such as cement. These natural aggregates have a very high weight-to-volume ratio, so they are used to connect artificial rock blocks and construct and install artificial rock structures by pouring mortar at the joints. There was a problem that workability was greatly reduced.

In addition, due to the nature of mortar aggregate made from natural resources, the amount collected is limited, and environmental damage occurs during the aggregate collection process. Therefore, by replacing natural aggregate with recycled aggregate manufactured by recycling waste, the environmental damage caused by natural aggregate collection is reduced. Attempts are being made to prevent environmental pollution caused by the disposal of wastes that serve as raw materials for recycled aggregates.

However, recycled aggregate has a disadvantage in that its adhesion to cement is lower than that of natural aggregate, which greatly reduces the strength of mortar. If the difference in specific gravity from the cement occurs depending on the material of the recycled aggregate, separation between the recycled aggregate and cement may occur when mixing mortar. However, there was a problem that was manifested in the poor physical properties of the manufactured mortar and caused a decrease in the strength of the joints of the constructed artificial rock structure.

Republic of Korea Patent Publication No. 10-1996-0009329 (registered on July 18, 1996) Republic of Korea Patent Publication No. 10-0926251 (registered on November 4, 2009) Republic of Korea Patent Publication No. 10-1134389 (registered on April 2, 2012) Republic of Korea Patent Publication No. 10-1997490 (registered on July 2, 2019)

In an embodiment of the present invention, the purpose is to improve the adhesion between cement and recycled aggregate mixed in mortar for the construction of artificial rock structures.

The purpose of an embodiment of the present invention is to prevent a decrease in mortar strength that occurs when replacing natural aggregate of mortar with recycled aggregate.

In an embodiment of the present invention, separation of the recycled aggregate is prevented when mixing mortar due to the difference in specific gravity between the recycled aggregate and cement, thereby suppressing a decrease in the adhesion strength of the mortar, thereby preventing a decrease in the physical properties of the manufactured mortar, and preventing the construction. The purpose is to prevent defects in artificial rock structures.

The purpose of an embodiment of the present invention is to prevent environmental pollution due to the application of recycled aggregate as a replacement for natural aggregate.

According to an embodiment of the present invention, an artificial rock structure is constructed by combining a plurality of artificial rock blocks with a rock surface pattern shape formed on the surface using a connecting member, and pouring mortar at the joint between the artificial rock blocks, wherein the mortar is 5 mm or less. The surface of pulverized glass waste is coated with acrylic resin, and the waste dust formed by pulverizing the concrete waste is attached to the acrylic resin-coated surface and dried naturally at room temperature, resulting in 60 to 64 wt% of glass waste, 18 to 20 wt% of acrylic resin. It consists of 18~20wt% of waste dust, forms recycled aggregate with a density in the range of 1.25~1.35g/㎤, then 10~12wt% of recycled aggregate, 33~34wt% of natural aggregate, 52wt% of cement, 2~ It is formed by mixing 4wt%·water to achieve a water-cement ratio of 18%.

According to an embodiment of the present invention, the acrylic resin coated on the surface of crushed glass waste contains 4 to 6 wt% of methyl methacrylate (MMA) and 26 to 30% of solid content.

According to an embodiment of the present invention, the additive consists of 0.5 to 0.75 wt% of calcium sulfo aluminate (CSA) expanding agent, 0.5 to 0.75 wt% of thickener, and 1 to 1.5 wt% of acrylic resin.

According to an embodiment of the present invention, the waste dust attached to the acrylic resin coated surface has a fine powder in the range of 2300 to 3200 cm3/g.

According to an embodiment of the present invention, an artificial rock block manufacturing process of forming an artificial rock block by combining and fixing molds to form a template, filling the mold by injecting mortar, and then separating the mold after hardening to form an artificial rock block, two or more artificial rocks The block joining process of connecting and fixing blocks into the shape of the artificial rock structure to be constructed through connecting members, the joint filling process of filling the gaps in the joints between artificial rock blocks by pouring mortar, and the drying of the mortar at the joints between artificial rock blocks. It is made through a drying process, and the mortar that is poured into the joint gap between artificial rock blocks during the joint filling process is coated with acrylic resin on the surface of the crushed glass waste with a size of 5 mm or less, and the waste dust formed by crushing the concrete waste is mixed with acrylic resin. By attaching it to the coated surface and drying it naturally at room temperature, the recycled aggregate is composed of 60-64 wt% of glass waste, 18-20 wt% of acrylic resin, and 18-20 wt% of waste dust, and has a density in the range of 1.25-1.35 g/㎤. After forming, 10-12 wt% of recycled aggregate, 33-34 wt% of natural aggregate, 52 wt% of cement, 2-4 wt% of additive, and water are mixed to form a water-cement ratio of 18%.

According to an embodiment of the present invention, the connecting member that connects the artificial rock blocks to each other during the block combining process is made of either a galvanized mesh or a reinforcing bar.

According to an embodiment of the present invention, when forming recycled aggregate of mortar poured into the joint gap between artificial rock blocks during the joint filling process, the acrylic resin coated on the surface of the crushed glass waste is 4 to 6 wt% of methyl methacrylate (methyl It contains methacrylate (MMA) and solid content of 26-30%.

According to an embodiment of the present invention, the additives mixed in the mortar poured into the joint gap between artificial rock blocks during the joint filling process include 0.5 to 0.75 wt% of calcium sulfo aluminate (CSA) expanding agent, 0.5 to 0.75 wt% of thickener, and acrylic. It consists of 1~1.5wt% of resin.

According to an embodiment of the present invention, the mortar filled in the mold during the artificial rock block manufacturing process is coated with an acrylic resin on the surface of the crushed glass waste in a size of 5 mm or less, and the waste dust formed by crushing the concrete waste is attached to the acrylic resin-coated surface. and natural drying at room temperature to form recycled aggregate, which consists of 60-64 wt% of glass waste, 18-20 wt% of acrylic resin, and 18-20 wt% of waste dust, and has a density in the range of 1.25-1.35 g/cm3, It is formed by mixing recycled aggregate, natural aggregate, cement, additives, and water.

According to an embodiment of the present invention, the mortar for producing artificial rock is mixed using recycled glass waste aggregate, which has a lower density compared to natural aggregate, thereby improving the convenience of constructing artificial rock structures by reducing the weight of the mortar.

According to an embodiment of the present invention, the density of the recycled aggregate is formed within a range of 1.25 to 1.35 g/cm3, similar to the density of cement, thereby preventing material separation due to the difference in specific gravity from cement when mixing mortar and the resulting decrease in the strength of the mortar. It has the effect of preventing sedimentation or floating of recycled aggregate in wet mortar.

According to an embodiment of the present invention, an acrylic resin is coated on the surface of pulverized glass waste, and waste dust is attached to the surface of the coated acrylic resin to form recycled aggregate, thereby improving the adhesion of mortar on the surface of the recycled aggregate to form an artificial rock structure. It has the effect of improving the adhesion strength of the connections between blocks.

According to an embodiment of the present invention, by forming the particle size of the glass waste constituting the recycled aggregate to 5 mm or less, it is possible to prevent the formation of non-uniform physical properties of mortar due to the non-uniform size of the recycled aggregate and the occurrence of defects in the construction of artificial rock structures. There is.

According to an embodiment of the present invention, the amount of calcium sulfo aluminate added is within the range of 0.5 to 0.75 wt%, which has the effect of reducing the drying time of the mortar and preventing delays in the construction of artificial rock structures due to delayed curing of the mortar.

According to an embodiment of the present invention, the amount of the thickener added is in the range of 0.5 to 0.75 wt%, which has the effect of preventing separation between recycled aggregate and cement and improving mortar filling workability of the connection between blocks of an artificial rock structure.

According to an embodiment of the present invention, the amount of acrylic resin added is in the range of 1 to 1.5 wt%, which has the effect of improving the adhesion strength of the mortar and preventing a decrease in the adhesion of the mortar due to the formation of an interface due to the acrylic resin.

According to an embodiment of the present invention, the waterproofing performance of the artificial rock structure is secured, the water permeability of the artificial rock structure is improved, and chloride infiltration is prevented, thereby preventing corrosion of connecting members between artificial rock blocks caused by infiltrating water. It has the effect of preventing a decrease in the durability of artificial rock structures.

According to an embodiment of the present invention, by forming recycled aggregate through pulverized glass waste, environmental destruction occurring during the aggregate collection process is prevented due to the decrease in the amount of natural aggregate collected due to resource recycling, and the landfill volume of discarded glass waste is prevented. There is an effect of reducing environmental pollution due to the reduction.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

A detailed explanation will be given focusing on the parts necessary to understand the operation and action according to the present invention.

While describing embodiments of the present invention, description of technical content that is well known in the technical field to which the present invention belongs and that is not directly related to the present invention will be omitted.

This is to convey the gist of the present invention more clearly without obscuring it by omitting unnecessary explanation.

Additionally, when describing the components of the present invention, different reference numerals may be assigned to components with the same name depending on the drawings, and the same reference numerals may be assigned to different drawings.

However, even in this case, it does not mean that the corresponding component has different functions depending on the embodiment, or that it has the same function in different embodiments, and the function of each component is different in the corresponding embodiment. The judgment should be made based on the description of each component in .

In addition, the technical terms used in this specification, unless specifically defined differently in this specification, should be interpreted as meanings commonly understood by those skilled in the art in the technical field to which the present invention pertains, and should not be overly comprehensive. It should not be interpreted as meaningless or in an excessively reduced sense.

Additionally, as used herein, singular expressions include plural expressions, unless the context dictates otherwise.

In the present application, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or steps may include It may not be included, or it should be interpreted as including additional components or steps.

The mortar for artificial rock construction made from recycled glass waste aggregate according to an embodiment of the present invention is a process of forming recycled aggregate to form recycled glass waste aggregate (S10), and mixing natural aggregate, cement, additives, and water into the recycled aggregate. It is manufactured through the mortar mixing process (S20) to form mortar.

The recycled aggregate formation process (S10) can be divided into a glass waste crushing step (S100), a waste dust forming step (S110), a coating step (S120), a dust attachment step (S130), and a drying step (S140). .

In the glass waste crushing step (S100), the glass waste is fed into the crusher through the hopper and the glass waste is crushed into a size of 5 mm or less. The crusher consists of a jaw crusher, impact crusher, and hammer crusher to achieve three-stage crushing of the glass waste. It is configured to classify the pulverized glass waste into two types according to size through a screen with a mesh.

In the first crushing process (S101), glass waste is crushed through a jaw crusher, the first crushed glass waste is transferred to an impact crusher and performed in the second crushing process (S102), and the second crushed glass waste is sent to a vibration separator. It is transferred and undergoes the first sorting process (S103).

In the first sorting process (S103), vibration is applied to a screen with a 10 mm gap mesh through a vibrating sorter, so that glass waste with a size of 10 mm or less passes through the screen, and glass waste with a size exceeding 10 mm is filtered through the screen. Glass waste is classified into two types according to size. Glass waste smaller than 10mm that passes through the screen is transferred to a hammer crusher, and glass waste larger than 10mm that is filtered through the screen is returned to the impact crusher for a secondary crushing process. Perform (S102) again.

In the third crushing process (S104), the glass waste is thirdly crushed through a hammer crusher, and the thirdly crushed glass waste is transferred to a vibration sorter to perform the second sorting process (S105).

In the second sorting process (S105), vibration is applied to a screen with a 5 mm gap mesh through a vibrating sorter, so that glass waste with a size of 5 mm or less passes through the screen, and glass waste with a size exceeding 5 mm is filtered through the screen. Glass waste is classified into two types according to size. Glass waste less than 5 mm in size that passes through the screen is transferred to a blender, and glass waste in size exceeding 5 mm that is filtered in the screen is returned to the hammer crusher for the third crushing process ( Perform S104) again.

In the glass waste crushing step (S100), the particle size of the pulverized glass waste is uniformly formed through a three-step crushing process (S101, S102, S104) and a two-step selection process (S103, S105) to create mortar for artificial rock construction. By maintaining the physical properties uniformly, it prevents the physical properties of the mortar from being formed unevenly due to the uneven size of the recycled aggregate, and prevents defects in the construction surface due to the recycled aggregate having a size larger than the standard value when constructing an artificial rock structure using the manufactured mortar. prevent occurrence.

In the waste dust formation step (S110), concrete waste is pulverized to form waste dust having a fine powder in the range of 2300 to 3200 cm3/g.

In the glass waste crushing step (S100) and the waste dust forming step (S110), the process of crushing glass waste or concrete waste is performed through equipment with a closed structure, and a dust collector is installed at the waste inlet or crushed material outlet of the crushing equipment. This prevents dust generated during the grinding process from scattering outside the equipment, causing respiratory diseases in workers, or preventing safety accidents such as dust explosions from occurring within the recycled aggregate production line.

In the coating step (S120), the acrylic resin is mixed with the pulverized glass waste formed in the glass waste pulverizing step (S100) to coat the surface of the pulverized glass waste, and the mixing and coating between the pulverized glass waste and the acrylic resin are performed. This is done through a fan-type blender.

Mixing between pulverized glass waste and acrylic resin is done at a ratio of 280 to 320 g of acrylic resin per 1 kg of pulverized glass waste, and the acrylic resin to be coated contains 4 to 6 wt% of methyl methacrylate (MMA) and a solid content of 26%. Contains ~30%.

In the dust attachment step (S130), the state of the acrylic resin coating is visually checked, and when the acrylic resin has been sufficiently applied, the waste dust formed in the waste dust formation step (S110) is put into a blender where glass waste pulverization and acrylic resin are mixed. By doing so, waste dust is attached to the surface of the acrylic resin coated on the pulverized glass waste.

Glass waste with waste dust attached is composed of 60-64 wt% glass waste, 18-20 wt% acrylic resin, and 18-20 wt% waste dust. In the subsequent drying step (S140), the acrylic resin is dried to produce recycled aggregate. is formed.

The dust attached in the dust attachment step (S130) improves the mortar adhesion to the surface of the recycled aggregate, and when manufacturing mortar for artificial rock structure construction by mixing recycled aggregate with dust attached, the adhesion rate is 1.8 MPa (1.0 in accordance with KS F 4042) Compared to the adhesion strength of 1.2 MPa or more, when a bridge waterproofing mortar is manufactured by mixing recycled aggregate without dust attached, the adhesion strength of the mortar is formed to 1.2 MPa, resulting in a decrease in adhesion strength of about 30%.

In the drying step (S140), the acrylic resin is dried through a natural drying method for about 8 hours in a room temperature environment in the temperature range of 18 to 22 ℃, and the density of the recycled aggregate formed after the drying step (S140) is completed is 1.25 to 1.35. It is formed within the g/cm3 range.

If the density of the recycled aggregate is less than 1.25 g/cm3, separation between materials may occur due to the difference in specific gravity with other mixed materials such as cement when mixing the mortar of the recycled aggregate, which may reduce the strength of the manufactured mortar.

If the density of the recycled aggregate exceeds 1.5g/cm3, the recycled aggregate may settle downward in the wet mortar, causing glass waste to clump together. Therefore, the density of the recycled aggregate must be within the range of 1.25 to 1.35g/cm3. It is preferable to form the recycled aggregate at a level similar to the density of general cement, which is 1.3 to 1.4 g/cm3, to prevent the strength of the manufactured mortar from deteriorating.

In addition, the density of recycled aggregate of 1.25 to 1.35 g/cm3 is 52 to 56% of the density of 2.4 g/cm3 of natural aggregate mixed with cement when manufacturing existing mortar, or 1.8 g/cm3 of lightweight aggregate. It is at a level of 69-75% compared to the density, enabling a 25-48% weight reduction compared to existing aggregates.

In the mortar mixing process (S20), as shown in Table 1 below, 10 to 12 wt% of recycled aggregate, 33 to 34 wt% of natural aggregate, 52 wt% of cement, 2 to 4 wt% of additives, and water are mixed to construct an artificial rock structure with a water-cement ratio of 18%. A mortar is formed, and the additives include 0.5 to 0.75 wt% of calcium sulfo aluminate (CSA) expanding agent, 0.5 to 0.75 wt% of thickener, and 1 to 1.5 wt% of acrylic resin.

ingredient recycled aggregate natural aggregate cement CSAs thickener acrylic resin weight 130 390 600 8 8 15 wt% 10~12 33~34 52 0.5~0.75 0.5~0.75 1~1.5

Recycled aggregate mixed in mortar replaces the same volume of natural aggregate. If the replacement ratio for natural aggregate is less than 20%, it has the effect of preventing environmental pollution through recycling of glass waste and has a density that is more than 50% lower than that of natural aggregate. The effect of reducing the weight of the mortar through recycled aggregate occurs slightly.

In addition, if the ratio of replacing natural aggregate exceeds 25%, the strength of the mortar decreases as separation occurs between materials due to the difference in specific gravity when mixing mortar due to the characteristics of recycled aggregate, which has a lower specific gravity compared to natural aggregate. It is desirable to mix aggregate at a level of 25% of the total aggregate.

The mortar according to the present invention is poured into the connections between artificial rock blocks connected by connecting members and is used to fill the gaps in the connections between artificial rock blocks. When the water-cement ratio is less than 18%, the viscosity of the mortar increases significantly, causing the joints between artificial rock blocks to form. Mortar pouring constructability may deteriorate, and if the water-cement ratio is more than 20%, the viscosity of the mortar may decrease and construction defects may occur as the mortar poured at the connection between artificial rock blocks flows down, so the water-cement ratio is set at 18%. It is desirable.

Calcium sulfo aluminate (CSA) is used as an expanding material for concrete by producing ettringite, a needle-shaped crystal mineral formed through a reaction between the aluminate contained in cement and gypsum when cement hydrates. It plays a role in preventing cracks caused by shrinkage of concrete.

If less than 0.5 wt% of CSA is added, the setting speed of cement is lowered, resulting in a delay in mortar hardening, which causes the problem of extending the construction period of artificial rock structures. If CSA is added in excess of 1 wt%, cement As the solidification speed increases, it is not possible to secure sufficient work time to fill the gap by pouring mortar into the joints between artificial rock blocks, which can greatly reduce workability. Therefore, the addition ratio of CSA is in the range of 0.5 to 0.75 wt%. It is preferable to be formed in .

The thickener increases the viscosity of the mortar to prevent separation between the mixed aggregate and cement. If less than 0.5 wt% of the thickener is added, the viscosity of the cement decreases and the mortar placed at the connection between artificial rock blocks may flow down. there is.

In addition, if more than 1 wt% of the thickener is added, the viscosity of the mortar increases and the mortar pouring workability may be greatly reduced, so it is preferable that the addition ratio of the thickener is in the range of 0.5.75 wt%.

Acrylic resin improves the adhesion strength of the mortar. If less than 1 wt% of acrylic resin is added, the adhesion strength of the mortar decreases, and if more than 1.5 wt% of acrylic resin is added, an interface due to the acrylic resin is formed. Since the adhesion of the mortar is greatly reduced and the problem of the poured mortar falling off may occur, the addition ratio of the acrylic resin is preferably in the range of 1 to 1.5 wt%.

The mortar pouring construction results of the artificial rock structure constructed using mortar using recycled glass waste aggregate according to an embodiment of the present invention are shown in Table 2 below, and the test method was performed according to KS F4932.

Test Items unit reference value Test result Workability - There should be no problem with the work clear Non-volatile matter % Within ±3% of displayed value 98.7% Touch drying time hour Within 3 2 Seal
Performance tensile strength MPa 1.5 or higher 5.2 elongation rate N/mm 100 or more 568 shear
adhesion
Performance shear adhesion
robbery -20℃ MPa 0.8 or higher 1.0 20℃ MPa 0.15 or higher 0.40 shear adhesion
strain -20℃ % 0.5 or more 1.0 20℃ % 1.0 or higher 1.2 Permeability resistance - will not be pitched clear Resistance to chloride ion penetration coulomb 100 or less 21 Fatigue resistance - Scratches, tears, and breaks
won't happen clear Crack resistance (-20℃) - clear

As shown in Table 2, the mortar for constructing artificial rock structures according to an embodiment of the present invention formed -1.3% of the water volatile content display value, achieving a range within ±3%, which is the water volatile content standard, and the drying time to touch was 2 hours. It can be confirmed that the workability of artificial rock structure construction is secured as touch drying occurs faster than the standard value of 3 hours.

In addition, it forms a tensile strength of 5.2 MPa, which is 3.5 times higher than the standard tensile strength value of 1.5 MPa, and an elongation rate of 568 N/mm, which is 5.6 times higher than the standard tensile strength value of 100 N/mm, confirming that the tensile performance is sufficiently secured.

In addition, the shear strength of 1.0MPa, which is 1.25 times higher than the standard shear bond strength of 0.8MPa at -20℃, the shear bond strength of 0.4MPa, which is 2.7 times higher than the standard shear bond strength of 0.15MPa at -20℃, and the shear bond strength of 0.4MPa at -20℃. A shear bond strain of 1.0%, which is 2 times higher than the standard shear bond strain of 0.5% at 20°C, and a shear bond strain of 1.2%, which is 1.2 times higher than the standard shear bond strain of 1.0% at 20°C, were formed, ensuring sufficient shear bond performance. You can confirm that it has been secured.

In addition, water permeability resistance, fatigue resistance, and crack resistance were secured as no permeability, cracks, tears, or fractures occurred in the construction area, and chloride ion penetration resistance was measured at 21C, satisfying the standard condition of 100C or less, making it an artificial rock. It is possible to effectively prevent the durability of the artificial rock structure from deteriorating as the mortar layer separates from the connecting member as the connecting member made of galvanized mesh or reinforcing bars to connect the blocks to each other corrodes.

The construction of an artificial rock structure using artificial rock mortar made from recycled glass waste aggregate as described above involves an artificial rock block manufacturing process (S1), a block combining process (S2), a mortar placing process (S3), and a drying process (S4). It consists of

In the artificial rock block manufacturing process (S1), molds divided into two or more parts are joined and fixed to each other to form a template, and at least one of the combined molds is a pattern mold with a rock surface pattern shape engraved on the inner surface of the mold. Includes.

When the mold formation is completed, the inside of the mold is injected and filled with mortar (M1) for manufacturing artificial rock blocks. After the mortar (M1) is cured, the mold is separated to manufacture an artificial rock block. The surface of the artificial rock block is decorated with a pattern mold surface. The rock surface pattern shape engraved on is transferred.

In the block combining process (S2), a number of manufactured artificial rock blocks are connected to other artificial rock blocks through connecting members such as galvanized mesh or reinforcing bars to form the shape of the structure to be constructed.

At this time, in the artificial rock block manufacturing process (S1), artificial rock blocks with different shapes and rock surface patterns are manufactured through a plurality of molds with pattern molds engraved with various rock surface pattern shapes, and in the block combining process (S2), By randomly selecting, connecting, and combining artificial rock blocks of various shapes, it is possible to prevent monotonous rock surface patterns from appearing in the constructed artificial rock structure, thereby reducing aesthetics.

In the mortar pouring process (S3), the gaps in the joints between artificial rock blocks are filled with mortar (M2) for artificial rock structure construction, and the connecting members between adjacent artificial rock blocks are buried inside the poured mortar (M2). The connecting member acts as a reinforcing material for the mortar (M2), further improving the strength of the joint between artificial rock blocks.

At this time, in the artificial rock block manufacturing process (S1), a part of the connecting member is inserted between the mating surfaces between molds, or the connecting member is inserted between the molds so that it protrudes out of the mold, and mortar (M1) is injected into the mold. and curing, and can be configured so that the central part of the connecting member is inserted into the manufactured artificial rock block, and the end of the connecting member protrudes outside the artificial rock block.

Through this, the end of each connecting member protruding from the side of the joint between artificial rock blocks is overlapped and connected to the connecting member of the adjacent artificial rock block, and the gap in the joint between artificial rock blocks is filled with mortar (M2) poured into the gap. As the connecting member is embedded inside the poured mortar (M2), the artificial rock block and the poured mortar (M2) are integrated with each other through the same connecting member to form a single artificial rock structure, greatly increasing the strength and durability of the artificial rock structure. so that it can be improved.

In the drying process (S4), the mortar (M2) placed at the joint between artificial rock blocks dries and hardens to complete the construction of the artificial rock structure. As the drying time of the mortar (M2) increases, delays in the construction of the artificial rock structure occur. In order to prevent this, it is preferable that the mortar (M2) poured into the joint gap between artificial rock blocks is configured to have the property of quickly hardening.

The aggregate contained in the mortar (M1) filled into the mold during the artificial rock block manufacturing process (S1) can also be replaced with recycled aggregate using crushed glass waste. By using recycled aggregate from glass waste, which has a lower density than natural aggregate, By reducing the weight of manufactured artificial rock blocks, the convenience of constructing artificial rock structures is improved and environmental pollution caused by recycling glass waste resources can be prevented.

The recycled aggregate of the mortar (M1) for block production is formed by coating the surface of crushed glass waste with acrylic resin in a size of 5 mm or less, and waste dust formed by grinding concrete waste is attached to the acrylic resin-coated surface. The recycled aggregate of mortar (M1) is a mixture of 60~64wt% of glass waste, 18~20wt% of acrylic resin, and 18~20wt% of waste dust to form a density in the range of 1.25~1.35g/㎤, and natural aggregate is added to the recycled aggregate. and cement, additives, and water are mixed to form mortar (M1).

The density of the recycled aggregate of mortar (M1) is within the range of 1.25 to 1.35 g/cm3, similar to the density of cement, and the recycled aggregate and It is possible to prevent the strength of the mortar (M1) from deteriorating as the mortar (M1) material is separated due to the difference in specific gravity between cements, and to prevent the recycled aggregate from settling or floating in the wet mortar.

In addition, by coating the surface of pulverized glass waste with acrylic resin and attaching waste dust to the surface of the coated acrylic resin to form recycled aggregate of mortar (M1), the artificial surface is improved by improving the adhesion of mortar (M1) to the surface of the recycled aggregate. The strength of the arm block can be improved.

In addition, the artificial rock block manufactured using mortar (M1) with recycled aggregate has improved waterproofing performance compared to the artificial rock block manufactured using existing mortar with natural aggregate, and prevents corrosion of connecting members between artificial rock blocks. It improves the durability of the rock structure and ensures uniform physical properties of the mortar (M1) as the particle size of the glass waste that forms the recycled aggregate of the mortar (M1) is uniformly formed to 5 mm or less, improving the physical properties of the manufactured artificial rock block. so that it can be improved.

Although embodiments of the present invention have been described with reference to the above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features.

Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive, and the scope of the present invention described in the detailed description is indicated by the claims described later, and the meaning and meaning of the claims. The scope and all changes or modified forms derived from the equivalent concept should be construed as being included in the scope of the present invention.

Claims (9)

An artificial rock structure is constructed by combining a plurality of artificial rock blocks with a rock surface pattern shape on the surface using connecting members, and pouring mortar at the joints between the artificial rock blocks.
The mortar is subjected to primary crushing through a jaw crusher, secondary crushing through an impact crusher, primary crushing through a vibrating sorter with a 10 mm gap mesh, tertiary crushing with a hammer crusher, and a vibrating sorter with a 5 mm gap mesh. By sequentially performing the secondary screening process, glass waste crushed to a size of 5 mm or less is mixed with acrylic resin through a pan-type mixer, the surface of the glass waste is coated with acrylic resin, and the waste dust formed by grinding the concrete waste is mixed with acrylic resin through a pan-type mixer. Attached to an acrylic resin-coated surface and naturally dried at room temperature, it is composed of 60-64wt% glass waste, 18-20wt% acrylic resin, and 18-20wt% waste dust, and forms a density in the range of 1.25-1.35g/cm3. After forming the aggregate, 10 to 12 wt% of recycled aggregate, 33 to 34 wt% of natural aggregate, 52 wt% of cement, 2 to 4 wt% of additive, and water are mixed to achieve a water-cement ratio of 18%,
The acrylic resin coated on the surface of crushed glass waste contains 4 to 6 wt% of methyl methacrylate (MMA) and 26 to 30 wt% of solid content.
The additive consists of 0.5~0.75wt% of calcium sulfo aluminate (CSA) expanding agent, 0.5~0.75wt% of thickener, and 1~1.5wt% of acrylic resin.
Mortar for artificial rock construction made from recycled glass waste aggregate, characterized in that the waste dust attached to the acrylic resin coating surface has a fine powder in the range of 2300 to 3200 cm3/g. delete delete delete Form an artificial rock block by combining and fixing two or more molds containing at least one pattern mold with a rock surface pattern engraved inside to form a template, filling the mold by injecting mortar, and then separating the mold after hardening to form an artificial rock block. artificial rock block manufacturing process (S1);
Block combining process (S2) of connecting and fixing two or more artificial rock blocks into the shape of the artificial rock structure to be constructed through connecting members;
Joint filling process (S3) in which mortar is poured into the joint gap between artificial rock blocks to fill it;
Drying process (S4) of drying the mortar at the joint between artificial rock blocks;
It is made up of,
In the artificial rock block manufacturing process (S1), the mortar filled into the mold is processed through a primary crushing process through a jaw crusher, a secondary crushing process through an impact crusher, and a vibration separator with a mesh of 10mm gap, so that the mortar exceeds 10mm. The first sorting process to filter out large glass waste, the third pulverizing process using a hammer crusher, and the second sorting process to filter out glass waste exceeding 5mm in size through a vibration sorter with a 5mm gap mesh are performed sequentially. Glass waste crushed to a size of 5 mm or less is mixed with acrylic resin through a pan-type mixer, and the surface of the glass waste is coated with acrylic resin. The waste dust formed by grinding the concrete waste is attached to the acrylic resin-coated surface and naturally dissipated at room temperature. After drying, recycled aggregate is formed, which consists of 60-64wt% of glass waste, 18-20wt% of acrylic resin, and 18-20wt% of waste dust, and has a density in the range of 1.25-1.35g/㎤, and then reused aggregate and natural It is formed by mixing aggregate, cement, additives, and water,
In the block combining process (S2), the connecting member connecting the artificial rock blocks to each other is made of either a galvanized mesh or a reinforcing bar,
In the joint filling process (S3), the mortar poured into the joint gap between artificial rock blocks is coated with acrylic resin on the surface of crushed glass waste with a size of 5 mm or less, and the waste dust formed by crushing concrete waste is applied to the acrylic resin-coated surface. By attaching and naturally drying at room temperature, recycled aggregate is formed, which consists of 60-64 wt% of glass waste, 18-20 wt% of acrylic resin, and 18-20 wt% of waste dust, and has a density in the range of 1.25-1.35 g/㎤. , 10-12 wt% of recycled aggregate, 33-34 wt% of natural aggregate, 52 wt% of cement, 2-4 wt% of additive, and water are mixed to form a water-cement ratio of 18%,
When forming recycled aggregate of mortar poured into the joint gap between artificial rock blocks in the joint filling process (S3), the acrylic resin coated on the surface of the crushed glass waste is 4 to 6 wt% of methyl methacrylate (MMA). and solid content of 26 to 30 wt%,
In the joint filling process (S3), the additives mixed into the mortar poured into the joint gap between artificial rock blocks are 0.5 to 0.75 wt% of calcium sulfo aluminate (CSA) expanding agent, 0.5 to 0.75 wt% of thickener, and 1 to 1.5 wt% of acrylic resin. A method of constructing an artificial rock structure made of recycled glass waste aggregate, characterized in that it consists of wt%. delete delete delete delete