Types of construction fencing organization 2023

Section One: Construction of iron fence

First, construction preparation

Blocks, cement and sand should be avoided from collision, rain and moisture. When stacking, they should be stacked in open Spaces to avoid occupying driveways and lawns. The auxiliary materials and accessories of the whole block shall meet the quality standards and use requirements specified in the design. There should be factory qualification certificate and test report before entering the metal fence, and its specifications, models and dimensions should meet the design requirements. Put it in a safe place, line it up, cover it.
The site construction electricity and water point is clear, the construction machinery and personnel are arranged properly.
Safe and civilized facilities have been put in place.

Second, Construction requirements

Calculate the number of blocks in the direction of the length of the partition wall at the front of the masonry wall. If there is not enough space in the end, the block can be sawed into the required size to fill the gap. When masonry wall is constructed, it is required that the upper and lower joints should be staggered and the spacing between the joints should be greater than or equal to 1/3 of the length of the block. The connecting parts of the corner, T-wall and cross wall should be joined up and down, and the surrounding tongue and tongue should be precisely bitten. The length direction of the block should be parallel to the direction of the wall, and the tenon should be downward.
the horizontal and vertical bonding joints of the block wall should be horizontal and vertical, uniform thickness, dense and full. At any time when masonry, it is forced to squeeze the transverse and vertical joints, or the special pad with tenon is aligned with the tenon groove and pressed tightly. The pad is struck with a rubber hammer to make the joints compacted, and the excess mortar extricated from the joints is scraped away in time.
In order to ensure the stiffness of the block wall and prevent cracks, the connection between the block walls should be made well. Reinforcing bars and steel mesh arranged in the ash seam.
masonry mortar, modulation amount from the time of adding water, the use of time should not exceed 4 hours, hardening should not be mixed with water after use.
In the process of masonry, the block wall should be checked at any time with a ruler, a level and a hanging hammer to adjust the flatness and verticality of the wall. Do not knock correction during the solidification of gypsum binder.
After the masonry of the block wall is completed, the defects and holes should be repaired and leveled.
the installation of railings should be straight, welding points need to do anti-corrosion treatment and brush the same color paint.

Third, construction method

Small excavators are used for earthwork excavation, and 10cm of the bottom surface of the foundation is reserved for bottom clearing. If the excavated earth is piled on the lawn, it should be protected by wooden planks, backfilled immediately after the construction of the foundation of the fence, and repaired in the damaged part of the lawn.
The required concrete is stirred on the spot. After the base groove is accepted, the cushion construction can be carried out on it.
MU7 is used for foundation brick. 5 Standard shale fired brick, M5 cement mortar full length and strip masonry, the block will be wet with water every day before masonry.
Construction of the wall: MU7 is used for bricklaying. 5 Standard shale fired brick,M5 cement mortar full length and strip masonry, the block will be wet with water every day before masonry. When masonry brick column, ensure that the position of the embedded iron parts is accurate and firmly installed, and bury 2 32-wire pipes in the column. When masonry, scaffolding should be set up, which should meet the requirements of the code, and the stacking material on the foot and hand board should not be too much.
concrete roof engineering: First, according to the design requirements for binding ring beam reinforcement, ring beam side die with 15mm thick multilayer board, in the bottom of the ring beam under a leather brick, a brick hole every 1 meter through the 50-100mm wooden square as a pole, erect two sides of the formwork, with clamp and diagonal support. In the reinforcement, formwork and other construction is completed, and the inspection and acceptance of qualified, can be carried out circle beam concrete casting, site mixing, the use of insert vibrator vibration, tamping and compaction, and do a good job of concrete maintenance work.
M5 cement mortar is used for wall plastering. Before construction, grey cake is made at the four corners of the wall, and each corner is plastered with ruler.
metal fence installation:

(1) Unpacking, inspection and transportation of metal fence: according to the requirements of the drawings to check the model and check the quality of iron art, such as the lack of edge channel Angle and warping uneven, deviation exceeds the standard, serious damage scratches, appearance color difference, should find the manufacturer to solve the negotiation, after trimming, identification qualified, can be installed, check the iron art adhesive protective film, if there is a defect should be repaired after installation.

(2) Check whether the embedded iron parts are complete and firm.

(3) Play the metal fence position line, and determine the installation elevation according to the horizontal line.

(4) Prepare the scaffolding for installation and take good safety precautions.

(5) Measure the headroom of each empty wall, cut the length of the railing on site, manually lift the railing onto the wall and adjust it to the design position.

(6) Welding electrode or wire should be suitable for the welding material varieties, and there should be a factory certificate. During welding, the welding spot between the components should be firm, the weld should be full, the welding wave on the surface of the weld should be uniform, there should be no biting edge, incomplete welding, cracks, dross, welding nodules, burn through, arc abrasion, arc pit and needle-like pores and other defects, and there should be no splashing in the welding area.

(7) After the railings are welded, the welds should be polished in time, and the anti-corrosion paint and the same color paint should be brushed after polishing.

Earthwork backfilling: Earthwork should use the soil dug out in the base groove, sift it before backfilling, the particle size is not more than 50mm, and check whether the water content is within the control range.

Section two: Construction of barbed wire fence

First, construction preparation

Trees in the area are strictly prohibited to cut down, and weeds, thorns and shrubs along the line should be cleared before construction. When the construction site of the fence has trees, or bypass, or transplant, and adopt special measures to protect the trees.

Leveling the site, laying construction electricity lines, water pipelines.

Finish wire mesh processing and ordering, complete component preparation, component approach.

Second, construction method

Measuring and setting out: According to the drawings provided by Party A and the site conditions, our construction wall shall not exceed the site red line. According to the drawings, the column spacing shall be 3m and the column foundation point shall be set out.
Earthwork excavation: According to the design drawings, the foundation adopts 500×400mmconcrete column foundation. It is not possible to use mechanical excavation, but can only use manual excavation, the excavation site leveling treatment.
Fence installation:

(1) Weld the frame, and connect the mesh together through the steel bar and U-shaped card. After the connection, the frame will be welded to the 75 column for two weeks to form a whole.

(2) Put pieces of fence in the pit, adjust the straightness and verticality, and drive it into the bottom of the pit for stabilization.

(3) Pour concrete and vibrate compactness.

(4) Check the straightness and hammer degree of the fence, correct the deviation part, the deviation shall not be greater than 3mm, and support the corrected fence firmly.

(5) After the installation of the metal mesh fence, the surface of the damaged parts and the site welding parts are polished smooth, two anti-brush rust paint, after receiving the experience of the surface paint treatment; Two lines of anti-rust paint should be applied to the welding site of galvanized material, and the surface paint should be applied after receiving the experience.

Section three: Brick wall construction

First, construction preparation

Block, cement, sand and so on should avoid collision, rain and moisture. Should be stacked in the open space as far as possible, to avoid occupying the driveway and lawn. The auxiliary materials and accessories of the whole block shall meet the quality standards and use requirements specified in the design. There should be factory qualification certificate and test report before entering the metal fence, and its specifications, models and dimensions should meet the design requirements. Put it in a safe place, line it up, cover it.
The site construction electricity and water point is clear, the construction machinery and personnel are arranged properly.
Safe and civilized facilities have been put in place.

Second, construction requirements

Calculate the number of blocks in the direction of the length of the partition wall at the front of the masonry wall. If there is not enough space in the end, the block can be sawed into the required size to fill the gap. When masonry wall is constructed, it is required that the upper and lower joints should be staggered and the spacing between the joints should be greater than or equal to 1/3 of the length of the block. The connecting parts of the corner, T-wall and cross wall should be joined up and down, and the surrounding tongue and tongue should be precisely bitten. The length direction of the block should be parallel to the direction of the wall, and the tenon should be downward.
2. The horizontal and vertical bonding joints of the block wall should be horizontal and vertical, uniform thickness, dense and full. At any time when masonry, it is forced to squeeze the transverse and vertical joints, or the special pad with tenon is aligned with the tenon groove and pressed tightly. The pad is struck with a rubber hammer to make the joints compacted, and the excess mortar extricated from the joints is scraped away in time.
In order to ensure the stiffness of the block wall and prevent cracks, the connection between the block walls should be made well. Reinforcing bars and steel mesh arranged in the ash seam.
4. Masonry mortar, modulation amount from the time of adding water, the use of time should not exceed 4 hours, hardening should not be mixed with water after use.
In the process of masonry, the block wall should be checked at any time with a ruler, a level and a hanging hammer to adjust the flatness and verticality of the wall. Do not knock correction during the solidification of gypsum binder.
After the masonry of the block wall is completed, the defects and holes should be repaired and leveled.

Third,construction method

Small excavators are used for earthwork excavation, and 10cm of the bottom surface of the foundation is reserved for bottom clearing. If the excavated earth is piled on the lawn, it should be protected by wooden planks, backfilled immediately after the construction of the foundation of the fence, and repaired in the damaged part of the lawn.
The required concrete is stirred on the spot. After the base groove is accepted, the cushion construction can be carried out on it.
3. The foundation brick body with MU7.5 standard shale fired bricks, M5 cement mortar full length full bar masonry, construction blocks every day sprinkler wet.
Construction of the wall: MU7 is used for bricklaying. 5 Standard shale fired brick,M5 cement mortar full length and strip masonry, construction blocks every day sprinkler wet. Embedded 2 32 wire pipe in the wall. When masonry, scaffolding should be set up, which should meet the requirements of the code, and the stacking material on the foot and hand board should not be too much.
Concrete roofing project: First of all, the rebar of the ring beam is bound according to the design requirements. The side die of the ring beam is made of 15mm thick multilayer plate. In the reinforcement, formwork and other construction is completed, and the inspection and acceptance of qualified, can be carried out circle beam concrete casting, site mixing, the use of insert vibrator vibration, tamping and compaction, and do a good job of concrete maintenance work.
M5 cement mortar is used for wall plastering. Before construction, grey cake is made at the four corners of the wall, and each corner is plastered with ruler.
Earthwork backfilling: Earthwork should use the soil dug out in the base groove, sift it before backfilling, the particle size is not more than 50mm, and check whether the water content is within the control range.

Section four: wall paint, lacquer and cultural stone construction

First,construction preparation

Main materials: including putty, primer, intermediate paint and top paint. Party A orders from the manufacturer and arranges production to ensure that the materials are available before the start of construction.
Auxiliary materials: sandpaper, protective plastic film, waste newspaper, adhesive tape, etc., shall be entered by the construction unit in batches.
Scaffolding and other machines and tools: the construction unit shall enter the site.
Labor force: including technical workers, auxiliary workers, construction team leader, material warehouse keeper, etc.

According to the project quantity and schedule requirements, from the whole company to select and organize enough skilled finishing workers to enter the construction in batches.

Second,construction requirements

For the wall coating construction specifications, must be in accordance with the People’s Republic of China industry standard building decoration construction and acceptance specifications in the standard of senior thin coating to carry out the acceptance, there shall be no powder, peeling, brush leakage, penetration, alkali, bite color, fall, pall, decoration line and dividing line straight, deviation is not greater than the construction specification value.

Third, exterior wall coating construction method

Before construction, check whether the base is smooth, smooth, strong, without holes, crisp powder, peeling, shell, powder and other phenomena. Before construction, the surface of the base must be cleaned of mortar, floating ash, oil, attachments and so on.
2. For the wall construction hole, scaffold knot must be responsible for cleaning and repairing with fast drying cement mortar. Due to the high humidity and alkalinity of the new mortar, it has an impact on the quality of the coating film. Therefore, the repaired mortar is required to meet the maintenance requirements. After the measurement of the humidity meter, the water content of the base is lower than 6% before it can be painted.
Putty batch scraping:

The function of using external wall putty is to improve the overall flatness of the base surface, balance the water absorption of the base material, improve cleanliness, and make the surface compact.

Putty general batch scraping twice, depending on the base surface increase. The first time putty is mainly to fill the depression of the wall, pores, sand holes and other defects, that is, local leveling. The second time of putty is mainly based on the overall leveling, and finally reach the requirements of flatness. When the putty is dry, it should be polished once with 320 # sandpaper and then polished a second time with 400# sandpaper, which has eliminated the sandpaper traces.

Putty batch scraping easy thin should not be thick, to batch scraping flat. After the completion of the putty surface without a batch of knife marks, rubbing traces. After the putty batch is scraped, it will be maintained for 3-4 days. After drying, it will be polished with sandpaper until smooth. Check the wall with 2M ruler, the deviation should be less than 2MM.

Putty batch scraping if found local substrate does not meet the requirements, should be processed according to the previous process to meet the requirements. After the putty batch is scraped, the wall should be checked. After the moisture and alkali content meet the requirements and pass the acceptance, the paint can be applied.

4.Primer coating

Under normal circumstances, the primer does not need to be diluted, such as rolling coating (in high temperature weather) must be diluted, can use no more than 5% water to dilute. Try not to dilute the medium-dark finish.

After mixing evenly, roll back and forth smoothly with the roller on the painted wall. Generally, the wall only needs to be evenly painted once, and the construction should be carried out according to the coating rate requirements, and the area should not be too large. After the primer is dry, the next process can be carried out (according to the weather conditions, such as :25℃, sunny weather about 6 hours later), gently polished with fine sandpaper, remove fine particles of dust and then finish the brush.

Before coating, the roller should be moistened with water, dried and pressed to remove excess water before dipping the paint. When dipping, only half of the roller brush should be immersed in the material, and then roll back and forth on the homogenizer several times to make the paint fully and evenly attached to the roller, and the paint contained in the roller should not drip. Roller a dip to a need for coating area is appropriate.

The purpose of the dip is to spread the paint on the roller first on the working surface. From the left, along the horizontal direction of the roller material, a “W” shape or “Z” shape first roll brush on the base, can also be along the vertical direction of the material is” three “shape expansion. The spread area depends on the amount of dipping material and the area that can be brushed. If the width of the interval is too large, it may cause uneven rolling, missing coating or knurling. If the interval is too small, repeated brushing will cause material waste. The coating will be rolled evenly, do not allow accumulation phenomenon, relatively rough surface can be rolled according to the well shape two directions, so as to avoid omissions. Should abide by the first up and then down, first left and then right, first corner and then large.

If the temperature is too high and the climate is dry, it is recommended to dilute the construction within 5% as required. The primer brush is usually applied by ordinary long hair roller, and the local paint brush is used for construction. Primer brushing is to pay attention to not leakage coating, resulting in poor paint color, uneven luster.

When the primer is finished, the drying time should be reached before the topcoat can be applied. The temperature should be greater than 25℃, and the weather should be greater than 6 hours.

When applying primer, if you find the wall that does not meet the requirements, please reapply primer after repairing according to the previous procedure.

Construction is strictly prohibited in rainy days. If it rains the day before construction, the wall must be dry the next day.

Finish paint brush

It is recommended not to dilute the first coat of top paint. After mixing evenly, use ordinary long-hair roller for construction, and local brush can be used to repair. The roller construction and primer are the same with the shaft type brush, which has ensured the uniform brushing of top paint. Before painting, tape should be used to seal the edge of the color separation line, external wall tile and window frame, and then paint. If brush is used during painting, attention should be paid to the leakage of painting phenomenon after the edge corner and the large surface. When painting the top paint, it should be noted that the wall inside the dividing line should be painted at one time, so as not to cause rubbing marks. When the topcoat coating is found to have some parts that do not meet the requirements, it should be repaired according to the requirements of the previous process, until the requirements can be painted.

Before applying the topcoat, check whether the primer is contaminated, whether the wall defects are repaired, and backlight the construction as far as possible.

Construction is strictly prohibited in rainy days. If it rains the day before construction, the wall must be dry the next day. The same day forecast rain, should avoid construction, in case the paint is not dry wash down. Pay close attention to the weather every day during construction.

In the construction of the second coat, the drawing roller should be used to apply the drawing coating, and the plain coating should be applied by the ordinary long hair roller. In principle, the roller should be applied by the method of “frequent dipping and frequent management”.

Spread material from left to right, from top to bottom side by side without gap feeding, the width is not more than 80 cm, and then horizontal finishing, and then vertical trim, receiving material from left to right, from bottom to top gently rolling coating, uniform receiving, eliminate surface bubbles.

The roller selection is the same, in the Yin and Yang corners or lines on the application of paint brush percussion point brush material should be sufficient and full, often dip frequently brush. If the space between the upper and lower parts is too large, the upper and lower parts should be constructed at the same time and wet lap joint should be adopted. Before construction, check the brushing quality of the first top paint. If there is any problem, it must be repaired

Fourth, real stone paint construction

Construction process

Scaffolding installation – leveling – two times exterior wall lacquer special putty – rolling brush closed primer – ink line grid – paste contact points – door and window opening protection – spray the first real stone paint – tear the first layer of tape – spray the second real stone paint – tear the second layer of tape – ash seam treatment – two times cover varnish finish and garbage cleaning – demolition construction equipment.

(1) Leveling

After cleaning the base, use the fine plaster mortar local batch scraping for leveling, carrying a level from top to bottom in turn. The base is required to be solid, smooth, no oil, no holes, no trachoma, smooth and straight Angle.

(2) Two times the special putty for exterior wall lacquer

Putty should be deployed on site, stir evenly, after deployment straight once used up. Rain, hot sun and frost must be protected for at least 12 hours after construction. Construction temperature in 5-35 degrees, the air relative humidity in 75% is appropriate.

During construction, the putty is evenly applied on the base surface with a spatula, and the thickness of each batch is controlled at 0. Within 8mm, 2, the second should be in the first completely dry solid before batch coating. The putty should be polished after it is dry and solid until the surface is free of scratches and smooth, and the floating ash should be removed. The surface smoothness deviation should be controlled within 2mm.

(3) Bottom coating construction

Neutralization treatment: The alkaline wall is neutralized with special neutralization agent to ensure that the wall is not caustic after construction. The amount is about 0.1-0.2kg/m2.

Roller brush sealing primer: the color of sealing primer can be selected according to the decorative effect on the color of the ash seam. Not in high temperature direct sunlight or rainy days, high humidity, below 5 degrees, wind and other weather conditions under construction, can not be mixed with other coatings, to avoid damaging its characteristics. Base water content should be less than 8 degrees, ph value is not greater than 10j, after checking to meet the requirements, can apply primer. Can use rolling coating, brush coating, spraying construction, coating to uniform, thickness to be consistent and no leakage brush. After the primer is completely dry and solid, the construction of the next step can be carried out.

(4) Elastic coating partition

According to the design requirements, the wall is divided into grids, and the grids are from the top to the bottom around the entire mono, so as to ensure that the corresponding ash joints around are on the same horizontal line, and all the vertical ash joints are parallel to each other and plumb down, so that the ash joints are horizontal, flat and vertical.

(5) Tape division strip

Because there are many partitions in the decoration of the effect of imitation face brick, the traditional wood divider and wing divider are no longer used. Because the base surface is difficult to achieve enough flatness, it is difficult to do the grid and the base completely match, spraying real stone paint will be difficult to ensure the straight ash joint, resulting in ash joint repair difficulties and repair workload: in addition, wood grid and plastic grid fixed difficulty. In view of the above situation, through practice, using paper tape instead of wood and plastic grids, can achieve ideal results.

(6) Spraying real stone paint

After the bottom coating is completed, the door and window openings are protected. After the bottom coating is completely dry (generally 4-6 hours), the construction can be carried out. According to different decoration requirements, the first test spraying is carried out to determine the pressure, the diameter of the spray gun and the spraying amount required by the construction, generally 5kg/m2.

Monochrome main coating: two spraying is appropriate. Before the first film is dry, you can spray the second.

Color main coating: double tube lacquer spray gun or single tube lacquer spray gun divided spraying.

Stone paint before use, must be thoroughly stirred evenly, construction gap should be covered tight bucket cover, in order to prevent coating skin. Spraying method is used for construction, and test spraying must be carried out before construction to determine the nozzle, working pressure, spray gun moving speed and other construction factors: uniform spraying, uniform thickness, to ensure the coating quality and effect.

(7) Remove the dividing tape

Before removing the adhesive tape, use a paper knife to cut off the vertical adhesive tape at the vertical and vertical joints parallel to the horizontal adhesive tape, so as to avoid the real stone paint falling off when removing the adhesive tape. Remove the tape before the coating surface is dry, and correct the damaged part in time.

(8) Ash seam treatment

After the tape is removed, the ash joint is arranged and repaired to ensure that the ash joint is straight and the width is the same.

(9) Cover layer (cover varnish) construction

After the main coating is completely dry (usually about 48 hours), the construction can be brushed or rolled with 0.15 — 0.20kg/m2 of finish paint.

After the completion of construction, check whether the finish has no pollution, whether it needs to be repaired, clean up the garbage, and remove the construction equipment.

Fifth, cultural stone paste

Wall preparation: Before construction, remove the floating ash and debris on the surface of the wall. The smooth wall should be processed into a rough surface before construction. Moisten the construction surface with water the day before construction and spray it again the next day before construction.
2. Adhesive preparation: use No. 425 white cement, general silicon cement (cement: sand: 801 glue = 1:2:03 or cement: sand: water = 1:1:0. 4) Cement to use Portland cement or general silicon cement, sand to use clean in line with the national standard of 2mm below the sand, water to use clean tap water.
3. Cultural stone shop:

When there are corner bricks, we should first lay corner bricks, and the length and size of corner bricks should be staggered with each other. After the corner brick is laid, the flat brick will be laid from the edge to the center of the wall. When plastered with regular shape products, they can be directly taken from the carton in a certain direction. When plastered with special-shaped products, it is recommended not to take product plastered from only 1 box, but can be randomly selected from 2-3 boxes of products (pay attention to color collocation). When the product is pasted on the wall, it should be fully compactified so that the plaster can spill evenly from the side of the product (four periphery). If necessary, in order to shop and post a good effect, the cultural stone can be cut and other adjustments.

Cultural stone caulking treatment:

Use special hook bag to fill the gap, pay attention to grasp the depth, the deeper the gap, the stronger the three-dimensional effect of the product. Cultural stone gap is generally about 15mm-25mm, according to the different models, the size of the gap is also different. After the initial setting of the caulk, remove the excess caulk with bamboo pieces, repair the surface of the gap with a brush with water, such as accidentally sticking a small amount of caulk or adhesive on the surface of the cultural stone, until it is dry, remove it with a brush. Some products do not need to leave seams.

This paper mainly describes the specific types and construction methods of construction fence organization, including four types of construction, respectively are iron art wall construction, barbed wire wall construction, brick wall construction and wall paint, lacquer and cultural stone construction. And the overall approach of these construction types is roughly the same, including the preparation before the construction, the requirements to be achieved by the construction and the specific construction methods, etc. In general, the construction fence organization is diverse and complex.

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