CN105275153B - The production method of concrete-core column - Google Patents

Abstract

The present invention provides a kind of production method of concrete-core column.The production method of this concrete-core column, this method comprise the following steps：A, aggregate is stocked up；B, sub-material；C, polish；D, coarse aggregate is molded；E, stem is molded.This agitating device includes rack and cylindrical polishing cylinder, there is agitating paddle in the polishing cylinder, the outer end of the polishing cylinder is fixed with motor, the inner of polishing cylinder is hinged in rack, upper lateral part at the polishing cylinder outer end has the import communicated with its inner cavity, the polishing cylinder is inner to have the discharge nozzle communicated with its inner cavity, above-mentioned discharge nozzle is resisted against in rack under the effect of gravity and polishing cylinder is horizontal, also there is a hoist engine, above-mentioned polishing cylinder is connected by rope and hoist engine in the rack.The production method of this concrete-core column is simple and practicable and this agitating device is easy to operate.

Description

How to make concrete core column

technical field

The invention relates to a manufacturing method of a concrete core column and a stirring device used in the manufacturing method.

Background technique

Concrete refers to a mixture made of cement (organic, inorganic or organic-inorganic composite), granular aggregates, water, chemical admixtures and mineral admixtures that need to be added in appropriate proportions, or After hardening, a composite material with a stacked structure is formed (usually cementitious material, water, fine aggregate, coarse aggregate), and when necessary, admixtures and mineral admixtures are added in an appropriate proportion.

Concrete is one of the most important civil engineering materials today. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used, not only in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering, etc. Concrete is also an important material.

Existing concrete generally uses stones and river sand as granular aggregates, which require time and money to collect.

Chinese Patent Publication No. CN201314095Y provides a building component, that is, "a steel frame-concrete steel tube core column", which includes steel tubes, steel plates and concrete, and a plurality of steel tubes are arranged in the concrete core column, and the steel tubes pass through The steel plates are connected; there are multiple longitudinal bars on the periphery of the steel pipe, and each longitudinal bar is bound by a stirrup; concrete is poured inside each steel tube and in the gap between the steel tube and the longitudinal bar, and a concrete protective layer is provided outside the longitudinal bar; Steel pipes are arranged at the intersections of the longitudinal limbs of the concrete core column and the transverse limbs and at the ends of each limb; the axes of the steel pipes located in the longitudinal limbs of the concrete core column are coplanar with the steel plates connecting the steel pipes in the longitudinal limbs of the core column, and The plane is located at the center of the longitudinal limb, the axis of the steel pipes in the concrete core column transverse limb is coplanar with the steel plates connecting the steel pipes in the core column transverse limb, and the plane is located at the center of the transverse limb. The above-mentioned patents have the advantages of high bearing capacity, good stability, obvious effects of fire prevention and corrosion protection, good seismic performance, and strong ductility.

However, it still uses ordinary concrete, but simply increases its bearing capacity through steel pipes, and it cannot be used reasonably for the waste gas glass in urban life.

Similar problems also exist in other existing concrete core columns.

Contents of the invention

The first object of the present invention is to provide a method for manufacturing a concrete core column capable of recycling waste glass, aiming at the above-mentioned problems existing in the prior art.

The second object of the present invention is to provide a stirring device used in the above-mentioned production method.

First purpose of the present invention can be achieved through the following technical solutions:

A method for manufacturing a concrete core column, the method comprising the following steps:

A. Aggregate material preparation: choose waste glass in municipal solid waste as raw material;

B. Raw materials: Break large pieces of glass into glass fragments, select glass fragments with a width of 4-10 cm as coarse aggregate blanks, and crush the remaining glass fragments with smaller sizes through ordinary rolling equipment Granular, as fine aggregate;

C. Grinding: River sand that accounts for 1/3-1/2 of its total volume is stored in the grinding cylinder, and the above-mentioned coarse aggregate blank is placed in the grinding cylinder, which has a rotating stirring paddle, and then the stirring paddle Rotate at a constant speed of 60-200 revolutions per minute for 1-3 hours to obtain a coarse aggregate semi-finished product with blunt corners and uneven surfaces;

D. Coarse aggregate forming: mix cement and water to form a viscous cement slurry, then attach the semi-finished coarse aggregate to the cement slurry and quickly put it into the drying and forming place. The cement slurry is under the action of gravity Hang down naturally, after the cement slurry adhered to the outside of the coarse aggregate semi-finished product is naturally dried and formed, the coarse aggregate with drooping cement in the lower part is obtained;

E. Core column molding: use ordinary methods to make a concrete protective layer with a cavity inside, form a molding cavity that matches the concrete core column in the protective layer, and then place steel pipes vertically in the molding cavity, cement, Water, coarse aggregate and fine aggregate are mixed according to the weight ratio of 300:120-180:1000-1300:600-800 per cubic meter, then put into the above-mentioned forming cavity and steel pipe, and disassemble after the cement is naturally dried and formed. The protective layer gets concrete core columns.

Among the waste in urban life, waste glass is difficult to recycle. The present invention creatively selects the above-mentioned waste glass, and then obtains coarse aggregate blanks and fine aggregates through selection and rolling.

After the coarse aggregate blank is polished, the sharp edges and corners of the coarse aggregate blank are removed, and at the same time, several concave and convex lines are polished on the glass surface to obtain a coarse aggregate semi-finished product.

Because the coarse aggregate semi-finished product has concave-convex lines, the viscous cement slurry can stably adhere to the coarse aggregate semi-finished product. After the cement slurry dries naturally, the coarse aggregate with drooping cement is obtained.

Finally, cement, water, coarse aggregate and fine aggregate are mixed according to the weight ratio of 300:120-180:1000-1300:600-800 per cubic meter to obtain concrete. The concrete is put into the forming cavity and the steel pipe, and the formed concrete core column is obtained after the protective layer is removed.

In the method for making the above-mentioned concrete core column, in the step A, put the waste glass into water at 60-80 degrees Celsius for 10-20 minutes, take it out, and use a high-pressure water gun to wash the dirt on the surface of the waste glass.

After the waste glass is cooked in high-temperature water, most of the sundries adhering to the waste glass will fall off. Using a high-pressure water gun can smoothly peel off a small part of the loose debris that adheres to the waste glass.

In the method for making the above-mentioned concrete core column, in the step B, the smaller glass fragments are placed on the iron plate, and then rolled over the iron plate by a road roller to obtain granular fine aggregate.

Granular fine aggregate can be obtained through one-time rolling and compacting by existing ordinary presses.

In the manufacturing method of the above-mentioned concrete core column, in the step D, a binder is added to the cement slurry.

The cement can be smoothly adhered to the coarse aggregate semi-finished product through the binder. Of course, the adhesiveness between the cement slurry and the semi-finished coarse aggregate can be further improved through the concave-convex pattern on the outer side of the semi-finished coarse aggregate.

In the manufacturing method of the above-mentioned concrete core column, the binder in the step D is an epoxy resin binder, and the weight ratio of the cement, water and epoxy resin is 100:20-30:5-10.

In the manufacturing method of the above-mentioned concrete core column, the binder in the step D is a polyurethane binder, and the weight ratio of the cement, water and epoxy resin is 100:20-30:5-10.

Both epoxy resin binder and polyurethane binder can improve the viscosity and adhesion of grout.

In the method for making the above-mentioned concrete core column, in the step D, there is a lifter for placing the semi-finished product of viscous cement slurry coarse aggregate at the dry molding place, and the lifter includes a bracket, a supporting plate and a semi-finished product. The connecting rod, the above-mentioned supporting plate and the connecting rod are all dry-bonded cement parts, and the two ends of the above-mentioned connecting rod are fixedly connected to the supporting plate and the support respectively.

The supporting plate and the connecting rod are molded separately through corresponding molds, and the supporting plate can be firmly connected to the bracket through connection. The semi-finished coarse aggregate with cement slurry is placed on the supporting plate, and the cement slurry is naturally dried, and then an external force is applied to break the connecting rod to obtain coarse aggregate.

In the manufacturing method of the above-mentioned concrete core column, the top of the supporting plate has a concave positioning groove, and the size of the supporting plate is smaller than that of the coarse aggregate semi-finished product.

The formed coarse aggregate covers the supporting plate to form a coarse aggregate with a compact shape and structure.

The second purpose of the present invention can be achieved through the following technical solutions:

A mixing device for mixing glass aggregate concrete, comprising a frame and a cylindrical grinding cylinder, characterized in that the grinding cylinder has a stirring paddle inside, and a motor is fixedly connected to the outer end of the grinding cylinder. The inner end of the grinding cylinder is hinged on the frame, the upper side at the outer end of the grinding cylinder has an inlet communicating with its inner cavity, and the inner end of the grinding cylinder has a discharge pipe communicating with its inner cavity. The above-mentioned discharge pipe is against the frame and the grinding cylinder is in a horizontal position. The frame also has a hoist, and the above-mentioned grinding cylinder is connected with the hoist through a rope.

The sand in the grinding cylinder occupies 1/3-1/2 of its volume. The concrete is put into the grinding cylinder from the inlet, and then the motor drives the stirring paddle to rotate, so that the river sand and the waste glass are mixed and stirred, and the sharp corners of the waste glass are polished off under the action of the river sand and the paddle. At the same time, some concave and convex lines are polished on the surface of the waste glass.

After the waste glass is polished, the winch moves, and the grinding cylinder is pulled by the rope to swing around its hinge to make the grinding cylinder stand upright. After the grinding cylinder swings, the discharge pipe on it breaks away from the frame. Since the discharge pipe is located at the bottom of the grinding cylinder at this time, the river sand and waste glass in the grinding cylinder are smoothly discharged through the discharge pipe.

After the river sand and waste glass in the grinding cylinder have been discharged, the winch rotates in reverse to make the connecting cylinder swing around its hinge gradually and return to its original state.

In the above-mentioned mixing device for mixing glass aggregate concrete, the inner end of the grinding cylinder is fixedly connected to the limit plate, and the above-mentioned hoist pulls the grinding cylinder to swing around its hinge through a rope, and the above limit plate can be against the frame .

The limiting plate plays a limiting role, and when the limiting plate is in contact with the frame, it can prevent the grinding cylinder from continuing to swing around its hinge.

In the above mixing device for mixing glass aggregate concrete, the frame has an upright connecting column, and the inner end of the grinding cylinder has a rod-shaped connecting rod, and the connecting rod is hinged to the connecting column.

The connection between the connecting rod and the connecting column can make the grinding cylinder have enough swing space, and can also make the grinding cylinder swing smoothly.

In the above mixing device for mixing glass aggregate concrete, the side of the connecting column has a protruding stop rod, and the above-mentioned limiting plate can be abutted against the stop rod.

The setting of the baffle rod can make the limit plate parallel to the grinding cylinder as much as possible, thereby avoiding the influence of the normal swing of the grinding cylinder due to the excessive bending of the limit plate.

In the above mixing device for mixing glass aggregate concrete, the side of the limiting plate has a concave guide groove, and the above-mentioned rope is located at the guide groove.

The guide groove guides the rope to prevent the rope from slipping and affecting the normal traction of the grinding cylinder.

In the above stirring device for stirring glass aggregate concrete, the stirring paddle includes a rotating shaft and a sheet-shaped paddle, the above-mentioned rotating shaft is located at the center of the grinding cylinder and the rotating shaft coincides with the axis of the grinding cylinder, and the above-mentioned paddle It is disc-shaped and the center of the paddles is fixedly connected to the rotating shaft, and the two adjacent paddles are arranged obliquely in a V shape.

The paddles are set in a V shape to make the river sand fully contact with the waste glass, so that the waste glass can be stably polished.

In the above stirring device for stirring glass aggregate concrete, the stirring paddle includes a rotating shaft and a sheet-shaped paddle, the above-mentioned rotating shaft is located at the center of the grinding cylinder and the rotating shaft coincides with the axis of the grinding cylinder, and the above-mentioned paddle It is L-shaped, one end of the paddle is fixedly connected to the rotating shaft, and the other end of the paddle is a stirring part for mixing glass aggregate concrete.

Each paddle is fixedly connected on the rotating shaft. Easy assembly due to the fixed attachment position of the paddles.

In the above stirring device for stirring glass aggregate concrete, the number of the paddles is several and arranged uniformly along the axial direction of the rotating shaft, and the two adjacent paddles are respectively located on both sides of the rotating shaft.

The staggered paddles can stir the river sand and waste glass more stably.

In the above stirring device for stirring glass aggregate concrete, the rotating shaft is fixedly connected to the connecting cylinder in the circumferential direction through a key connection, and one end of the paddle is fixedly connected to the side of the connecting cylinder by welding.

The key connection is to realize the circumferential fixation between the shaft and the parts on the shaft through the key to transmit motion and torque. Among them, some types can also realize axial fixation and transmit axial force, and some types can also realize axial dynamic connection.

In the key connection assembly, the key (generally made of No. 45 steel) is a mechanical part used to connect the parts on the shaft and fix them circumferentially to achieve torque transmission.

Since the paddles are firmly connected to the connecting cylinder by welding, the paddles can be indirectly connected to the rotating shaft through the key connection.

In the aforementioned mixing device for mixing glass aggregate concrete, a flexible sealing gasket is fixedly connected to the side of the connecting column, and the end of the discharge pipe abuts against the sealing gasket.

Because the sealing pad is flexible, the port of the discharge pipe can be sealed against the sealing pad at the port of the discharge pipe. Effectively prevent river sand and waste glass in the grinding cylinder from leaking from the discharge pipe.

In the aforementioned mixing device for mixing glass aggregate concrete, the side of the connecting column has a concave connecting seat, the above-mentioned sealing gasket is located at the connecting seat and the sealing gasket is flush with the side of the connecting column.

The connecting seat can position the gasket, and at the same time prevent the gasket from occupying space. superior

In the aforementioned mixing device for mixing glass aggregate concrete, the entrance has an openable and closable cover plate.

The cover is opened when adding waste glass and closed during grinding.

Compared with the prior art, in the production method of the concrete core column, since the coarse aggregate and the fine aggregate are all waste glass, the waste glass in urban life can be well recycled, which is not only environmentally friendly but also reduces the cost of concrete The cost of the stem.

At the same time, after the waste glass of the manufacturing method of the concrete core column is polished, the stable cement slurry can be adhered and dried to form a coarse aggregate. Since the outer side of the above-mentioned coarse aggregate is dry-bonded cement, it can play a good load-bearing role when the concrete is formed, and has high practical value.

In addition, in the mixing device for mixing glass aggregate concrete, the grinding cylinder hangs down under the action of its own gravity and the discharge pipe on it abuts against the gasket, so that the grinding cylinder is sealed. It only needs the operation of the winch when discharging, which has high practical value and is easy to operate.

Description of drawings

Fig. 1 is a structural schematic diagram of the stirring state of the stirring device for stirring glass aggregate concrete.

Fig. 2 is a structural schematic diagram of the unloading state of the stirring device for stirring glass aggregate concrete.

Fig. 3 is a three-dimensional structural schematic diagram of a limiting plate in the mixing device for mixing glass aggregate concrete.

Fig. 4 is a schematic diagram of the connection structure between the rotating shaft and the paddle in the mixing device for mixing glass aggregate concrete.

In the figure, 1. Rack; 2. Grinding cylinder; 2a, inlet; 2b, connecting rod; 3. Stirring paddle; 3a, rotating shaft; 3b, paddle; 4. Motor; 5. Cover plate; ; 7, hoist; 8, rope; 9, limit plate; 9a, guide groove; 10, gasket; 11, connecting column; 11a, connecting seat;

Detailed ways

Embodiment one

The manufacturing method of this concrete core column comprises the following steps:

A. Aggregate material preparation: waste glass in municipal solid waste is selected as raw material. In this embodiment, put the waste glass into water at 60 degrees Celsius for 10 minutes, take it out, and use a high-pressure water gun to rinse the dirt on the surface of the waste glass.

B. Material splitting: crush large pieces of glass into glass fragments, and select glass fragments with a width of 4 cm as coarse aggregate blanks. The remaining small-sized glass fragments are rolled into granules by ordinary rolling equipment as fine aggregate.

Place the smaller glass fragments on the iron plate, and then use a road roller to roll over the above iron plate to obtain granular fine aggregate.

C. Grinding: River sand that accounts for 1/3 of its total volume is stored in the grinding cylinder, and the above-mentioned coarse aggregate blank is placed in the grinding cylinder, which has a rotatable stirring paddle, and then the stirring paddle is driven at 60 per minute. Rotate at a constant speed for 1 hour to obtain a coarse aggregate semi-finished product with blunt edges and concave-convex lines on the surface;

D. Coarse aggregate forming: mix cement and water to form a viscous cement slurry, then attach the semi-finished coarse aggregate to the cement slurry and quickly put it into the drying and forming place. The cement slurry hangs down naturally under the action of gravity, and after the cement slurry adhering to the outside of the coarse aggregate semi-finished product is naturally dried and formed, the coarse aggregate with drooping cement in the lower part is obtained;

In this embodiment, a binder is added to the cement slurry, the binder is an epoxy resin binder, and the weight ratio of the cement, water and epoxy resin is 100:20:5. According to the actual situation, another kind of binder can also be used, that is: polyurethane binder, and the weight ratio of the cement, water and polyurethane binder is 100:20:5.

The drying and forming part has lifting parts for placing semi-finished products with viscous cement slurry and coarse aggregate. The lifting part includes a bracket, a supporting plate and a connecting rod, and the supporting plate and the connecting rod are all dry cement parts, and the two ends of the above connecting rod are fixedly connected to the supporting plate and the bracket respectively.

In the manufacturing method of the above-mentioned concrete core column, the top of the supporting plate has a concave positioning groove, and the size of the supporting plate is smaller than that of the coarse aggregate semi-finished product.

E. Core column forming: use ordinary methods to make a concrete protective layer with a cavity inside, and form a molding cavity that matches the concrete core column in the protective layer. Then, place the steel pipe vertically in the forming cavity, mix cement, water, coarse aggregate and fine aggregate according to the weight ratio of 300:120:1000:600 per cubic meter, and then put them into the above forming cavity and steel tube. After the cement is naturally dried and formed, the protective layer is removed to obtain the concrete core column.

As shown in Fig. 1 and Fig. 2, the mixing device used for mixing glass aggregate concrete comprises a frame 1 and a cylindrical grinding cylinder 2. There is a stirring paddle 3 inside the grinding cylinder 2, and the outer end of the grinding cylinder 2 is fixed. Connected with motor 4, the inner end of grinding cylinder 2 is hinged on the frame 1, and the upper side of grinding cylinder 2 outer end places has the entrance 2a that communicates with its inner cavity, and entrance 2a place has the cover plate 5 that can open and close.

The inner end of the grinding cylinder 2 has a discharge pipe 6 communicating with its inner cavity. Under the action of gravity, the above discharge pipe 6 abuts against the frame 1 and the grinding cylinder 2 is in a horizontal position. The frame 1 also has a hoist 7, Grinding cylinder 2 links with winch 7 by rope 8. The inner end of the grinding cylinder 2 is fixedly connected with the limiting plate 9, and the hoist 7 pulls the grinding cylinder 2 through the rope 8 to swing around its hinge, and the above-mentioned limiting plate 9 can lean against the frame 1.

In this embodiment, the side of the limiting plate 9 has a concave guide groove 9a, and the rope 8 is located at the guide groove 9a, as shown in FIG. 3 .

The frame 1 has an upright connecting column 11, and the inner end of the grinding cylinder 2 has a rod-shaped connecting rod 2b, and the connecting rod 2b is hinged at the connecting column 11. In this embodiment, the side of the connecting column 11 has a protruding blocking rod 11b, and the limiting plate 9 can abut against the blocking rod 11b.

A flexible sealing gasket 10 is fixedly connected to the side of the connecting column 11 , and the end of the discharge pipe 6 abuts against the sealing gasket 10 . In this embodiment, the side of the connecting post 11 has a recessed connecting seat 11 a, the gasket 10 is located at the connecting seat 11 a and the sealing gasket 10 is flush with the side of the connecting post 11 .

The paddle 3 comprises a rotating shaft 3a and a sheet-shaped paddle 3b, the rotating shaft 3a is located at the center of the grinding cylinder 2 and the rotating shaft 3a coincides with the axis of the grinding cylinder 2, the paddle 3b is disc-shaped and the center of the paddle 3b is fixed. Connected to the rotating shaft 3a, two adjacent paddles 3b are inclined in a V shape.

According to the actual situation, the stirring paddle 3 can also adopt another structure, that is: the stirring paddle 3 includes a rotating shaft 3a and a sheet-shaped paddle 3b, the rotating shaft 3a is located at the center of the grinding drum 2 and the shaft of the rotating shaft 3a and the grinding drum 2 The center lines coincide, and the paddle 3b is L-shaped. One end of the paddle 3b is fixedly connected to the rotating shaft 3a, and the other end of the paddle 3b is a stirring part for mixing glass aggregate concrete, as shown in FIG. 4 . The number of paddles 3b is several and are uniformly distributed along the axis of the rotating shaft 3a, and two adjacent paddles 3b are respectively located on both sides of the rotating shaft 3a.

The rotating shaft 3a is fixedly connected to the connecting cylinder 12 in the circumferential direction through a key connection, and one end of the paddle 3b is fixedly connected to the side of the connecting cylinder 12 by welding.

The waste glass in urban life is cleaned, then selected and rolled to obtain rough aggregate and fine aggregate.

After the coarse aggregate blank is polished, the sharp edges and corners of the coarse aggregate blank are removed, and at the same time, several concave and convex lines are polished on the glass surface to obtain a coarse aggregate semi-finished product.

Because the coarse aggregate semi-finished product has concave-convex lines, the viscous cement slurry can stably adhere to the coarse aggregate semi-finished product. After the cement slurry dries naturally, the coarse aggregate with drooping cement is obtained.

Finally, cement, water, coarse aggregate and fine aggregate are mixed according to the set ratio to obtain concrete. The concrete is put into the forming cavity and the steel pipe, and the formed concrete core column is obtained after the protective layer is removed.

Wherein, the river sand that occupies its volume 1/2 in the grinding cylinder 2. The concrete is put into the grinding cylinder 2 through the inlet 2a, and then the motor 4 drives the stirring paddle 3 to rotate, so that the river sand and the waste glass are mixed and stirred, and the sharp corners of the waste glass are polished off under the action of the river sand and the stirring paddle 3 . At the same time, some concave and convex lines are polished on the surface of the waste glass.

After the waste glass is polished, the hoist 7 moves to pull the grinding cylinder 2 to swing around its hinge through the rope 8 to make the grinding cylinder 2 stand upright. After the grinding cylinder 2 swings, the discharge pipe 6 on it is separated from the frame 1. Since the discharge pipe 6 is located at the bottom of the grinding cylinder 2 at this time, the river sand and waste glass in the grinding cylinder 2 pass through the discharge pipe smoothly. 6 discharge.

After the river sand and waste glass in the grinding cylinder 2 are discharged, the hoist 7 rotates in reverse, so that the connecting cylinder 2 gradually swings around its hinge and returns to its initial state.

Embodiment two

The manufacturing method of this concrete core column comprises the following steps:

A. Aggregate material preparation: waste glass in municipal solid waste is selected as raw material. In this embodiment, put the waste glass into water at 70 degrees Celsius for 15 minutes, take it out, and use a high-pressure water gun to wash the dirt on the surface of the waste glass.

B. Divide the material: Break the large piece of glass into glass fragments, and select the glass fragments with a width of 5 cm as the coarse aggregate blank. The remaining small-sized glass fragments are rolled into granules by ordinary rolling equipment as fine aggregate.

Place the smaller glass fragments on the iron plate, and then use a road roller to roll over the above iron plate to obtain granular fine aggregate.

C. Grinding: River sand that accounts for 1/3 of its total volume is stored in the grinding cylinder, and the above-mentioned coarse aggregate blank is placed in the grinding cylinder, which has a rotating stirring paddle, and then the stirring paddle is rotated at 100 times per minute. Rotate at a constant speed for 2 hours at a rotating speed to obtain a coarse aggregate semi-finished product with blunt edges and concave-convex lines on the surface;

D. Coarse aggregate forming: mix cement and water to form a viscous cement slurry, then attach the semi-finished coarse aggregate to the cement slurry and quickly put it into the drying and forming place. The cement slurry hangs down naturally under the action of gravity, and after the cement slurry adhering to the outside of the coarse aggregate semi-finished product is naturally dried and formed, the coarse aggregate with drooping cement in the lower part is obtained;

In this embodiment, a binder is added to the cement slurry, and the binder is an epoxy resin binder, and the weight ratio of the cement, water and epoxy resin is 100:25:8. According to the actual situation, another kind of binder can also be used, that is: polyurethane binder, and the weight ratio of the cement, water and polyurethane binder is 100:25:8.

The drying and forming part has lifting parts for placing semi-finished products with viscous cement slurry and coarse aggregate. The lifting part includes a bracket, a supporting plate and a connecting rod, and the supporting plate and the connecting rod are all dry cement parts, and the two ends of the above connecting rod are fixedly connected to the supporting plate and the bracket respectively.

In the manufacturing method of the above-mentioned concrete core column, the top of the supporting plate has a concave positioning groove, and the size of the supporting plate is smaller than that of the coarse aggregate semi-finished product.

E. Core column forming: use ordinary methods to make a concrete protective layer with a cavity inside, and form a molding cavity that matches the concrete core column in the protective layer. Then, place the steel pipe vertically in the forming cavity, mix cement, water, coarse aggregate and fine aggregate according to the weight ratio of 300:15:1100:700 per cubic meter, and then put them into the above forming cavity and steel tube, After the cement is naturally dried and formed, the protective layer is removed to obtain the concrete core column.

Embodiment Three

The manufacturing method of this concrete core column comprises the following steps:

A. Aggregate material preparation: waste glass in municipal solid waste is selected as raw material. In this embodiment, after putting the waste glass into water at 80 degrees Celsius for 20 minutes, take it out and use a high-pressure water gun to wash the dirt on the surface of the waste glass.

B. Divide the material: break the large piece of glass into glass fragments, and select the glass fragments with a width of 10 cm as the coarse aggregate blank. The remaining small-sized glass fragments are rolled into granules by ordinary rolling equipment as fine aggregate.

Place the smaller glass fragments on the iron plate, and then use a road roller to roll over the above iron plate to obtain granular fine aggregate.

C. Grinding: River sand that accounts for 1/2 of its total volume is stored in the grinding cylinder, and the above-mentioned coarse aggregate blank is placed in the grinding cylinder, which has a rotating stirring paddle, and then the stirring paddle is rotated at 200 per minute. Rotate at a constant speed for 3 hours at a rotating speed to obtain a semi-finished coarse aggregate whose corners are blunted and have concave-convex lines on the surface;

D. Coarse aggregate forming: mix cement and water to form a viscous cement slurry, then attach the semi-finished coarse aggregate to the cement slurry and quickly put it into the drying and forming place. The cement slurry hangs down naturally under the action of gravity, and after the cement slurry adhering to the outside of the coarse aggregate semi-finished product is naturally dried and formed, the coarse aggregate with drooping cement in the lower part is obtained;

In this embodiment, a binder is added to the cement slurry, and the binder is an epoxy resin binder, and the weight ratio of the cement, water and epoxy resin is 100:30:10. According to the actual situation, another kind of binder can also be used, that is: polyurethane binder, and the weight ratio of the cement, water and epoxy resin is 100:30:10.

The drying and forming part has lifting parts for placing semi-finished products with viscous cement slurry and coarse aggregate. The lifting part includes a bracket, a supporting plate and a connecting rod, and the supporting plate and the connecting rod are all dry cement parts, and the two ends of the above connecting rod are fixedly connected to the supporting plate and the bracket respectively.

In the manufacturing method of the above-mentioned concrete core column, the top of the supporting plate has a concave positioning groove, and the size of the supporting plate is smaller than that of the coarse aggregate semi-finished product.

E. Core column forming: use ordinary methods to make a concrete protective layer with a cavity inside, and form a molding cavity that matches the concrete core column in the protective layer. Then, place the steel pipe vertically in the forming cavity, mix cement, water, coarse aggregate and fine aggregate according to the weight ratio of 300:180:1300:800 per cubic meter, and then put them into the above forming cavity and steel tube, After the cement is naturally dried and formed, the protective layer is removed to obtain the concrete core column.

Claims (5)

1. a kind of production method of concrete-core column, this method comprise the following steps：

A, aggregate is stocked up：The scrap glass in domestic waste is chosen as raw material；

B, sub-material：It is glass fragment by the glass crushing of bulk, selection width is 4-10 centimetres of glass fragment as thick bone Expect blank, the less glass fragment of surplus size is rolled as graininess by common rolling apparatus, as fine aggregate；

C, polish：The river sand for accounting for its total measurement (volume) 1/2 is stored in polishing cylinder, above-mentioned coarse aggregate workblank is inserted in polishing cylinder, is beaten There is the agitating paddle that can be rotated in mill tube, when then making agitating paddle small with 200 turns per minute of speed uniform rotation 3, obtain side Angle is had the coarse aggregate semi-finished product of concave convex texture by blunt and surface；The outer end of the polishing cylinder is fixed with motor, polishing cylinder The inner is hinged in rack, and the upper lateral part at the polishing cylinder outer end has the import that is communicated with its inner cavity, in the polishing cylinder End is with the discharge nozzle communicated with its inner cavity, and above-mentioned discharge nozzle is resisted against in rack under the effect of gravity and polishing cylinder is in level Position, also has a hoist engine in the rack, above-mentioned polishing cylinder is connected by rope and hoist engine；The polishing cylinder is inner Limiting plate is fixed with, above-mentioned hoist engine pulls polishing cylinder above-mentioned limiting plate after the swing of its hinged place to be resisted against machine by rope On frame；

There is the connecting pole erect, it is in rod-shaped connecting rod that above-mentioned polishing cylinder is inner, which to be had, above-mentioned connecting rod in the rack It is hinged at connecting pole；The connecting pole sidepiece has the bar of protrusion, and above-mentioned limiting plate can be resisted against on bar；It is described spacing Plate sidepiece has recessed guide groove, and above-mentioned rope is located at guide groove；

D, coarse aggregate is molded：Thick cement mortar will be formed after cement and water proportioning, then by above-mentioned coarse aggregate semi-finished product Put it into after adhesion cement mortar at drying and moulding rapidly, cement mortar hangs down naturally under the effect of gravity, coarse aggregate to be adhered to Lower part is obtained after the naturally dry and hard shaping of cement mortar on the outside of semi-finished product has the coarse aggregate of sagging cement；

E, stem is molded：Use common method to make the internal concrete cover for cavity, formed in protective layer and mixed The molding cavity that solidifying core column matches, the placing steel tubes then erected in forming cavity, by cement, water, coarse aggregate and fine aggregate According to every cubic metre of weight ratio 300：120—180:1000—1300:600-800 be stirred after be put into above-mentioned shaping In chamber and steel pipe, after the naturally dry and hard shaping of cement dismantling protective layer obtains concrete-core column.

2. the production method of concrete-core column according to claim 1, it is characterised in that will be discarded in the step A Glass is put into 10 in 60-80 degrees Celsius of water-after twenty minutes, using giant to scrap glass surface after being drawn off Dirt be rinsed.

3. the production method of concrete-core column according to claim 1, it is characterised in that by size in the step B Less glass fragment is positioned on iron plate, then using road roller by being rolled on above-mentioned iron plate by obtaining granular thin Aggregate.

4. the production method of concrete-core column according to claim 1, it is characterised in that be dried in the step D Have at type and be used to place the lift part for being stained with sticky cement mortar coarse aggregate semi-finished product, the lift part includes stent, support Plate and connecting rod, above-mentioned supporting plate and connecting rod are dry and hard cement part, and the both ends of above-mentioned connecting rod are respectively fixedly connected on supporting plate and stent.

5. the production method of concrete-core column according to claim 1, it is characterised in that have at the top of the supporting plate Recessed locating slot, and pallet size is less than coarse aggregate semi-finished product size.