阅读说明：本技术 附墙塑石结构的施工方法 (Construction method of wall-attached plastic-stone structure ) 是由 蒋大千 苟康全 周波 郭振城 罗烈庆 梁秋华 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种附墙塑石结构的施工方法,包括：步骤1,制作并安装钢筋网造型：用热镀锌钢筋按预先设定的造型焊制成钢筋网造型,用C型钉将热镀锌细目网固定在钢筋网造型的内侧,之后将钢筋网造型全面焊接在墙体基层表面预先设置的次骨架上；步骤2,安装热镀锌菱形网：用支撑卡扣卡在钢筋网造型上,之后将热镀锌菱形网使用C型钉固定在钢筋网造型的外侧,并使支撑卡扣支撑在钢筋网造型与热镀锌菱形网之间；步骤3,塑型处理：在内侧设有热镀锌细目网和外侧设有热镀锌菱形网的钢筋网造型上进行喷涂浆料塑型,塑型完成后即制成附墙塑石结构。该方法能制作稳固、耐用且仿真度高的附墙塑石结构。(The invention discloses a construction method of a wall-attached plastic stone structure, which comprises the following steps: step 1, manufacturing and installing a reinforcing mesh model: welding a hot-galvanized steel bar into a steel bar mesh model according to a preset model, fixing the hot-galvanized fine mesh net on the inner side of the steel bar mesh model by using a C-shaped nail, and then fully welding the steel bar mesh model on a secondary framework which is preset on the surface of a wall body base layer; step 2, installing a hot galvanizing diamond net: clamping the hot-dip galvanized diamond mesh on the steel bar mesh model by using a support buckle, fixing the hot-dip galvanized diamond mesh on the outer side of the steel bar mesh model by using a C-shaped nail, and supporting the support buckle between the steel bar mesh model and the hot-dip galvanized diamond mesh; and step 3, molding treatment: and spraying slurry on the reinforcing mesh model with the hot galvanizing fine mesh net arranged on the inner side and the hot galvanizing diamond net arranged on the outer side for molding, and manufacturing the wall-attached plastic stone structure after molding. The method can manufacture the wall-attached plastic stone structure which is stable, durable and high in simulation degree.)

1. A construction method of a wall-attached plastic stone structure is characterized by comprising the following steps:

step 1, manufacturing and installing a reinforcing mesh model: welding a hot-galvanized steel bar into a steel bar mesh model according to a preset model, fixing a hot-galvanized fine mesh net on the inner side of the steel bar mesh model by using a C-shaped nail, and then fully welding the steel bar mesh model on a secondary framework arranged on the surface of the wall body base layer in advance;

step 2, installing a hot galvanizing diamond net: clamping the hot-dip galvanized diamond mesh on the steel bar mesh model by using a support buckle, fixing the hot-dip galvanized diamond mesh on the outer side of the steel bar mesh model by using a C-shaped nail, and supporting the support buckle between the steel bar mesh model and the hot-dip galvanized diamond mesh;

and step 3, molding treatment: and spraying slurry on the reinforcing mesh model with the hot-galvanized fine mesh net arranged on the inner side and the hot-galvanized diamond net arranged on the outer side for molding, and manufacturing the wall-attached plastic stone structure after molding.

2. The method for constructing a wall-attached plastic-stone structure as claimed in claim 1, wherein in step 1 of the method, the steel mesh profile welded by hot-galvanized steel bars according to a preset profile is: round wood modeling and/or city wall modeling;

in the steel bar mesh model, the distance between the transverse steel bars and the vertical steel bars is 200 mm.

3. The construction method of the wall-attached plastic-stone structure according to claim 1, wherein in the step 2 of the method, the length of the support buckle is as follows: 35 mm.

4. The method for constructing a wall-attached plastic stone structure according to claim 1, wherein in the method,

the diameter of the hot-dip galvanized steel bar is as follows: phi 6.5 mm;

the hot-dip galvanized fine mesh adopts a hot-dip galvanized steel wire mesh with the diameter of 6 multiplied by phi 0.38 mm;

the diamond net is a 25 multiplied by phi 0.7mm hot galvanizing steel wire diamond net.

5. The method for constructing a wall-attached plastic-stone structure according to any one of claims 1 to 4, wherein rust prevention treatment is performed on all welding spots and joints to achieve the rust prevention grade Sa2¹/₂。

6. The method for constructing a wall-attached plastic-stone structure according to claim 5, wherein each welding point and each joint are subjected to rust prevention treatment to achieve the rust prevention grade Sa2¹/₂Comprises the following steps: the epoxy zinc-rich primer is adopted for coating for 2 times, the epoxy micaceous iron intermediate coating is coated for 1 time, and the top coating is adoptedAnd (3) brushing for 2 times, wherein the top coating is any one of epoxy, polyurethane, acrylic epoxy and acrylic polyurethane.

7. The method for constructing a wall-attached plastic-stone structure according to any one of claims 1 to 4, wherein in step 3 of the method, the steel bar mesh mold with the hot-galvanized fine mesh net on the inner side and the hot-galvanized diamond mesh on the outer side is sprayed with slurry for molding, and after molding, the wall-attached plastic-stone structure is manufactured as follows:

step 31, spraying cement mortar on the hot galvanizing rhombic net on the outer side of the steel bar net model and the hot galvanizing fine mesh net on the inner side of the steel bar net model to form a bottom layer;

step 32, roughening the surface of the bottom layer;

step 33, spraying cement mortar on the surface of the bottom layer after the napping treatment to form a molding layer with the thickness not less than 30 mm;

step 34, molding the molding layer according to a set shape;

and step 35, after the molded shape is fixed and molded, spraying waterproof paint, curing agent and sealing paint on the surface of the shape in sequence to obtain the wall-attached plastic-stone structure.

8. The method for constructing a wall-attached plastic-stone structure as claimed in claim 7, wherein in step 31 of the method, the hot-galvanized diamond mesh on the outer side of the steel bar mesh molding and the hot-galvanized fine mesh on the inner side are sprayed with cement mortar to form a bottom layer:

judging the internal space of the reinforcing mesh model, directly performing front-side guniting if the internal space is less than 0.8 multiplied by 0.8m, and otherwise, performing sandblasting slurry covering on a secondary framework and a reinforcing mesh model welding point on the reverse side of the reinforcing mesh model;

front-side guniting: spraying cement mortar mixed by cement and river sand according to the weight ratio of 1:3 from the front surface of the hot-galvanized diamond mesh on the outer side through a low air pressure of a spraying machine, so that the mortar passes through the hot-galvanized diamond mesh on the outer side and is molded through a reinforcing mesh in the middle, and the thickness of the mortar is not less than 20 mm;

back surface smoothing: when the air temperature environment is 30-35 ℃, trowelling the exposed steel bar position by using a mortar knife after one hour of front-side guniting is finished, and covering and trowelling the exposed steel bar position by using mortar until no empty drum exists, thus finishing the manufacture of the bottom layer;

in step 32 of the method, the roughening treatment of the surface of the bottom layer comprises: after the bottom layer is manufactured, spraying slurry on the surface of the bottom layer, and then carrying out manual napping treatment, wherein the surface is maintained for 1-3 days after the napping treatment, so that the cement mortar reaches the strength and does not crack;

in step 34 of the method, the molding is performed on the molding layer according to a set shape:

carrying out first molding guniting, and maintaining for seven days after the first molding guniting to ensure that the cement mortar reaches the strength without cracking;

and then, performing second detail shaping: carrying out second molding guniting on the basis of the first molding guniting, carving the fine molding by using a corresponding carving tool 25-35 minutes after the second molding guniting is dried, repeatedly brushing by using a soft brush when the second molding guniting is not completely dried after carving is finished, and removing sand with a rough surface;

in step 35 of the method, after the molded shape is fixed and molded, the waterproof coating, the curing agent and the sealing paint are sequentially sprayed on the surface of the shape:

after the molded plastic is fixed and molded, cleaning the surface layer to ensure that the surface layer has no dirt, dust or cement residue;

spraying alkali-resistant primer to cover the bottom layer;

and (4) carrying out large-area finish paint spraying construction according to the pre-manufactured color effect construction sample plate.

9. The construction method of the wall-attached plastic-stone structure according to claim 8, characterized in that in the method, an alkali-efflorescence resisting agent is added into cement mortar;

if the using environment temperature is low, an antifreezing agent is added into the cement mortar.

10. The construction method of a wall-attached plastic stone structure according to claim 8,

in step 34 of the method, in the second detail shaping, glass fiber or hemp fiber which increases the strength and toughness of the cement mortar is added into the cement mortar;

in step 34 of the method, after the plastic layer is molded according to a set shape, wet water curing is carried out, watering curing is carried out for not less than 4-5 times per day in a high-temperature period, watering curing is carried out for 2-3 times in a low-temperature period, and watering is not carried out at a temperature lower than 5 ℃.

Technical Field

The invention relates to the field of plastic-stone construction, in particular to a construction method of a wall-attached plastic-stone structure.

Background

At present, in the construction of moulding stone structure preparation, the construction mode that often adopts is: fixing the reinforcing mesh on the base layer surface, binding the fine mesh on the reinforcing mesh by using iron wires, and manually smearing cement mortar on the fine mesh to form the wall-attached plastic-stone structure. However, the construction mode has the problems that due to the large randomness of the plastic-stone construction, the internal reinforcing mesh is easy to rust, the plastic-stone base cement mortar is uneven in thickness and easy to crack and fall off, and the like.

Disclosure of Invention

Based on the problems in the prior art, the invention aims to provide a construction method of a wall-attached plastic-stone structure, which can solve the problems that an internal reinforcing mesh is easy to rust, cement mortar of a plastic-stone base layer is uneven in thickness and easy to crack and fall off and the like in the construction of the existing plastic-stone structure.

The purpose of the invention is realized by the following technical scheme:

the embodiment of the invention provides a construction method of a wall-attached plastic stone structure, which comprises the following steps:

step 1, manufacturing and installing a reinforcing mesh model: welding a hot-galvanized steel bar into a steel bar mesh model according to a preset model, fixing a hot-galvanized fine mesh net on the inner side of the steel bar mesh model by using a C-shaped nail, and then fully welding the steel bar mesh model on a secondary framework arranged on the surface of the wall body base layer in advance;

step 2, installing a hot galvanizing diamond net: clamping the hot-dip galvanized diamond mesh on the steel bar mesh model by using a support buckle, fixing the hot-dip galvanized diamond mesh on the outer side of the steel bar mesh model by using a C-shaped nail, and supporting the support buckle between the steel bar mesh model and the hot-dip galvanized diamond mesh;

and step 3, molding treatment: and spraying slurry on the reinforcing mesh model with the hot-galvanized fine mesh net arranged on the inner side and the hot-galvanized diamond net arranged on the outer side for molding, and manufacturing the wall-attached plastic stone structure after molding.

According to the technical scheme provided by the invention, the construction method of the wall-attached plastic-stone structure provided by the embodiment of the invention has the beneficial effects that:

the steel bar mesh model is made of hot-galvanized steel bars, the hot-galvanized fine mesh net is arranged on the inner side of the steel bar mesh model, and the hot-galvanized diamond net is arranged on the outer side of the steel bar mesh model, so that a steel bar mesh model framework which is not easy to rust is formed, the thickness of a plastic stone base layer can be guaranteed, the service life of the plastic stone is prolonged, the plastic stone model is easy to adjust and change, the manufactured plastic stone is firm and durable in structure, and the simulation degree is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a flow chart of a construction method of a wall-attached plastic-stone structure according to an embodiment of the present invention;

FIG. 2 is a flowchart of the molding step in the construction method according to the embodiment of the present invention;

fig. 3 is a schematic side cross-sectional view of a wall-attached plastic stone structure according to an embodiment of the present invention;

each of the labels in the figure is: 1-hot galvanizing diamond net; 2-shaping a reinforcing mesh; 3-hot galvanizing fine mesh net; 4-sub-skeleton.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the specific contents of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.

As shown in fig. 1, an embodiment of the present invention provides a construction method of a wall-attached plastic-stone structure, including:

step 1, manufacturing and installing a reinforcing mesh model: welding a hot-galvanized steel bar into a steel bar mesh model according to a preset model, fixing a hot-galvanized fine mesh net on the inner side of the steel bar mesh model by using a C-shaped nail, and then fully welding the steel bar mesh model on a secondary framework arranged on the surface of the wall body base layer in advance;

step 2, installing a hot galvanizing diamond net: clamping the hot-dip galvanized diamond mesh on the steel bar mesh model by using a support buckle, fixing the hot-dip galvanized diamond mesh on the outer side of the steel bar mesh model by using a C-shaped nail, and supporting the support buckle between the steel bar mesh model and the hot-dip galvanized diamond mesh;

and step 3, molding treatment: and spraying slurry on the reinforcing mesh model with the hot-galvanized fine mesh net arranged on the inner side and the hot-galvanized diamond net arranged on the outer side for molding, and manufacturing the wall-attached plastic stone structure after molding.

In step 1 of the method, the steel bar mesh model welded by hot-dip galvanized steel bars according to a preset model is as follows: round wood modeling and/or city wall modeling;

in the steel bar mesh model, the distance between the transverse steel bars and the vertical steel bars is 200 mm.

In step 2 of the above method, the length of the support buckle is: 35 mm.

In the above-mentioned method, the first step of the method,

the diameter of the hot-dip galvanized steel bar is as follows: phi 6.5 mm;

the hot-dip galvanized fine mesh adopts a hot-dip galvanized steel wire mesh with the diameter of 6 multiplied by phi 0.38 mm;

the diamond net is a 25 multiplied by phi 0.7mm hot galvanizing steel wire diamond net.

In the method, the rust prevention treatment is carried out on all welding points and connecting parts, so that the rust prevention grade reaches Sa 21/2.

In the method, the rust prevention treatment is carried out on each welding point and each connecting part, so that the rust prevention grade reaching Sa 21/2 is as follows: the paint is coated 2 times by adopting epoxy zinc-rich primer, 1 time by adopting epoxy micaceous iron intermediate paint and 2 times by adopting surface paint, wherein the surface paint adopts any one of epoxy, polyurethane, acrylic epoxy and acrylic polyurethane.

After the above rust-proofing treatment, the rust-proofing performance of the reinforcing mesh molding and other parts can be further improved.

In step 3 of the method, slurry is sprayed on the reinforcing mesh model with the hot galvanizing fine mesh net arranged on the inner side and the hot galvanizing diamond net arranged on the outer side for molding, and the wall-attached plastic stone structure is prepared after molding is finished:

step 31, spraying cement mortar on the hot galvanizing rhombic net on the outer side of the steel bar net model and the hot galvanizing fine mesh net on the inner side of the steel bar net model to form a bottom layer;

step 32, roughening the surface of the bottom layer;

step 33, spraying cement mortar on the surface of the bottom layer after the napping treatment to form a molding layer with the thickness not less than 30 mm;

step 34, molding the molding layer according to a set shape;

and step 35, after the molded shape is fixed and molded, spraying waterproof paint, curing agent and sealing paint on the surface of the shape in sequence to obtain the wall-attached plastic-stone structure.

In step 31 of the method, the step of spraying cement mortar on the hot-galvanized diamond mesh outside and the hot-galvanized fine mesh inside the steel bar mesh molding to form a bottom layer comprises the following steps:

judging the internal space of the reinforcing mesh model, directly performing front-side guniting if the internal space is less than 0.8 multiplied by 0.8m, and otherwise, performing sandblasting slurry covering on a secondary framework and a reinforcing mesh model welding point on the reverse side of the reinforcing mesh model;

front-side guniting: spraying cement mortar mixed by cement and river sand according to the weight ratio of 1:3 from the front surface of the outer diamond-shaped net through a low air pressure of a spraying machine, so that the mortar passes through the outer diamond-shaped net and is molded through a middle reinforcing mesh, and the thickness of the mortar is not less than 20 mm;

back surface smoothing: when the air temperature environment is 30-35 ℃, trowelling the exposed steel bar position by using a mortar knife after one hour of front-side guniting is finished, and covering and trowelling the exposed steel bar position by using mortar until no empty drum exists, thus finishing the manufacture of the bottom layer;

in step 32 of the method, the roughening treatment of the surface of the bottom layer comprises: after the bottom layer is manufactured, spraying slurry on the surface of the bottom layer, and then carrying out manual napping treatment, wherein the surface is maintained for 1-3 days after the napping treatment, so that the cement mortar reaches the strength and does not crack;

in step 34 of the method, the molding is performed on the molding layer according to a set shape:

carrying out first molding guniting, and maintaining for seven days after the first molding guniting to ensure that the cement mortar reaches the strength without cracking;

and then, performing second detail shaping: carrying out second molding guniting on the basis of the first molding guniting, carving the fine molding by using a corresponding carving tool 25-35 minutes after the second molding guniting is dried, repeatedly brushing by using a soft brush when the second molding guniting is not completely dried after carving is finished, and removing sand with a rough surface;

in step 35 of the method, after the molded shape is fixed and molded, the waterproof coating, the curing agent and the sealing paint are sequentially sprayed on the surface of the shape:

after the molded plastic is fixed and molded, cleaning the surface layer to ensure that the surface layer has no dirt, dust or cement residue;

spraying alkali-resistant primer to cover the bottom layer;

and (4) carrying out large-area finish paint spraying construction according to the pre-manufactured color effect construction sample plate.

In the method, an anti-alkali agent is added into cement mortar;

if the use environment temperature is low, adding an antifreezing agent into the cement mortar;

in step 34 of the method, in the second detail shaping, glass fiber or hemp fiber which can increase the strength and toughness of the cement mortar is added into the cement mortar;

in step 34 of the method, after the plastic layer is molded according to a set shape, wet water curing is carried out, watering curing is carried out for not less than 4-5 times per day in a high-temperature period, watering curing is carried out for 2-3 times in a low-temperature period, and watering is not carried out at a temperature lower than 5 ℃.

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, wherein the described examples are a part of the embodiments of the present invention, but not all of the embodiments, and all other embodiments obtained by those skilled in the art without any creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.