The main project has been completed and passed the assessment of the five major responsibility masters. The information is complete and can be used for external powder construction.
Second, construction preparation
Organizational preparation:
(1) After careful inspection and selection of the external powder construction team is ready. The construction team has high-quality, disciplined and capable construction features.
(2) The project department's work and the project department organized the construction team to study the drawings, atlas, and specifications, and the implementation of the construction content has been completed.
(3) The full-time management organization of the external powder of the project department is ready and the personnel are in place.
2. Site preparation:
(1) Preparation of construction machinery: The mixer and transportation machinery for on-site construction of the powder are completed, and the operation is good, meeting the construction requirements; all small machines are fully equipped.
(2) Preparation of construction materials: On-site sand, cement, finished products, separators, lime paste, etc. have entered the site and are re-qualified according to the materials.
3, the outer frame finishing:
The powder outside the chimney must be adjusted according to the needs of the outer powder. The horizontal and vertical bars should be away from the wall and the corner of the wall should be 200mm---250mm. The wall rod must meet the required number.
Third, the operation process:
Chimney outer powder project paste ash cake line, separation sticker
Wiping the bottom ash maintenance smear two layers of gray ash surface layer gray maintenance quality inspection
1. Cleaning of the base layer: Check all the walls, brick walls and other surfaces before the powder. The surface stains and dust must be cleaned and watered.
2, the base layer treatment: the base surface shaving treatment with cement slurry mixed with 801 glue, and watering to 70% dry.
3, hanging vertical, set the square to find the rules: in the door window corner, wall and other places hanging lines, sets of square plaster cake, pop-up ash layer control line on the wall.
4, plastering layer: wiped with 801 gelatin slurry, followed by wipe 2:1:8 cement lime mortar, each time 7-9mm and flattened with a large wooden bar, and finally with a wooden trowel mane, iron trousers slip, Compaction.
5, drip line: in the mouth, window, awning, balcony, pressing top, protruding wall, decorative line, etc., the top of the flow slope, below do the drip line. The drip line needs to be smooth, straight, and the width of the depth is consistent, about 10cm.
6. Separation and elastic line: Stick the separation strip as required, especially the window sill, balcony, exterior decoration line, etc. must be pasted with drip strip.
7. Maintenance: Spraying water is required after plastering.
Fourth, quality standards:
1. The ash layer between each layer and the plaster layer and the substrate must be firmly bonded, without delamination, empty drum, no defects such as ash and cracks in the surface layer.
2, the surface is smooth, clean, uniform color, no crepe, yin and yang gray line straight and square, clear and beautiful, especially the construction joint must be straight and left in the corner, decorative line, behind the downpipe.
3. The width and depth of the dividing strip (seam) are uniform, smooth and smooth, angular and straight, horizontal and straight, and smooth.
4, the drip line and the drip water flow slope is correct, the drip line is straight, the width and depth of the drip tank are not less than 10mm, neat and consistent.
5. Finished product protection:
1. Be careful when unpacking the shelves to prevent damage to the cemented wall surface, and take protective measures in time to prevent contamination and damage caused by process interspersing, especially for corner boards.
2. Each plaster layer prevents quick drying, bursting, water flushing, impact and vibration before condensation to ensure sufficient strength of the gray layer.
Sixth, should pay attention to the quality of the problem
1. Empty drums and cracks: Since the bottom of the base layer before the ash is not cleaned or incomplete, no water is applied before plastering. Each layer of ash is too thick and too tight; the surface of the block is not cleaned, and no water is poured. Plastering. Not cured after plastering. In order to solve the problem of quality and cracking, we should solve it from three aspects:
The substrate is cleaned and watered before the first construction.
In the second construction operation, the stratification and sub-compaction should be serious, not sloppy, and it is strictly forbidden to survive.
After the third construction, timely watering and maintenance, and pay attention to the cleanliness of the operation site, the plaster layer is wiped once to overcome the rotten root.
2, drip line (slot) does not meet the requirements and requirements: do not keep the drip tank according to the specifications, the bottom of the window sill should be left drip tank, the construction should be provided with a divider, after the strip to keep the drip tank with 10mm × 10 mm groove, strictly prohibited After plastering, use a slipper to sew the bead, or use a nail to dig.
3. The step of the drip sink is neat and tidy. After the strip is lifted, the cement grout is applied and the damaged corners are repaired in time.
4, window sill eating mouth: the same level of window sill elevation is inconsistent, in order to ensure that the outer decorative surface of the plaster line is vertical and vertical need to pull the line to find the rules, it causes the window sill to eat, affecting the use. First of all, the height of the structure should be correct when constructing the structure. Consider the thickness of the plaster layer, and the upper mouth should find the slope of the flow.
5, the surface layer is uneven, the color is inconsistent: the scorpion scorpion is not regular, leaving it uneven, so it is difficult to find the level when it is connected. Note that the joints should be avoided in the block, should be left in the separation strip, or inconspicuous places; the outer smear cement must use the same variety, the same batch of cement into the field to ensure that the color of the plaster layer is consistent. Before the construction, the base layer should be watered for easy operation, avoiding the difficulty of pressing and pressing the surface to black, resulting in uneven color.
Seven, security management
1. Safety helmets and safety belts must be worn when entering the outer frame construction.
2. It is strictly forbidden to dismantle the outer frame and the wall rod.
3, the construction layer must be full of bamboo rafts, and tied with lead wire, the probe plate is not allowed.
4. It is strictly forbidden to throw away debris from the downstairs.
5. The safety net for the outer frame construction must be closed and it is forbidden to dismantle it privately.
6. Always check the integrity, stability and foundation settlement observation work of the outer frame.
7. The construction personnel should first understand the work after the surrounding situation, so as to eliminate the safety hazard work, and it is not safe to work.
8. After the completion of the construction, the debris of each floor should be cleaned up in time to prevent the debris from falling and injuring people.
9. The construction operator finds hidden dangers to be reported to the project department in time to make safety hazards. Early resolution of early prevention.
10. Conscientiously abide by the various management systems and management personnel's orders to improve safety awareness and ensure safety.