One-stop solution to wall hollow crack and window frame leakage system

First, the site site status:

1. Existing wall materials: Most of them use aerated concrete blocks.

It can meet the requirements of building energy saving, and has the characteristics of light capacity, low thermal conductivity, good thermal insulation and sound insulation, fire prevention and simple construction.

Aerated concrete also has great problems: it has the characteristics of large water absorption, long time, low strength, large drying shrinkage value, high water absorption rate and long curing time.

  2. Site site cement and sand stacking

Second, the mortar conveying process

1, trolley transport mortar

       Stirring mortar site

2. Transport cement mortar to the floor

1) Put cement mortar into the bucket

2) Push the bucket to the lift

3) Push the truck into the lift

4) Pull the mortar truck into the floor

5) Unload the mortar in the truck to the floor

6) After the mortar is unloaded, the truck comes out of the lift

3. Transportation by high-altitude tower crane

1) Mortar

2) Prepare to lift

3) A high-altitude tower crane transport mortar

4) High-altitude tower crane transport mortar

Third, the site on-site mortar delivery volume and cost analysis:

1. Lift transportation

1) Each lift transports mortar to 4 buckets

2) 4-6 times per hour, 5 cars/return

3) Daily delivery is based on 10 hours

4) The delivery volume per truck is 0.06M³  mortar

Verification: The daily shipment per lift is:

10 hours*5 times/hours*4 buckets/every lifts*0.06M³  /per bucket

=12M³  /per lift

The maximum daily delivery volume is 12M³  

2. The situation of mortar conveying personnel:

1) The following mortar mixing and loading at least 2 people

2) Lifting 1-2 people

3) Help the unloading truck above, then put the trolley into the lift 1 - 2 people

      Each floor transporting mortar requires at least 4-6 workers for each lift.

3. Current status of supporting mortar for aerated concrete

1) Mortar King: It has been widely used in projects before. Because the mortar king only makes the mortar have workability, it does not enhance any water retention and other functional properties of the mortar, and there are many empty drum cracking problems. In many projects, it has begun to give up. use.

2) Cement mortar: The construction site has begun to be used directly. However, since the aerated concrete has the problems of large water absorption, low strength, large drying shrinkage value and high water absorption rate, the cement mortar is directly used, and since the cement mortar does not have the water retaining function, the moisture in the mortar is quickly refilled. The concrete absorbs it and loses water after the mortar is applied to the wall, causing the empty drum of the plaster to dry and shrink, and even peeling off when it is serious.

4. Construction method: construction by traditional construction method (manual construction, mixing + batch plastering)

1. Traditional construction, the daily construction area is about 30-50M²

Traditional construction method (full manual):

Construction methods:

The traditional construction method has been used for centuries, and the method is almost unchanged. The construction process is carried out by lifting the cement and sand materials to the required construction floor by the bottom layer of the site, and then applying it to the wall after manual mixing, which is not only time-consuming. , laborious, high cost, and poor construction efficiency.

Disadvantages of traditional construction methods (full manual):

a, the scene is chaotic, cement, sand and other materials piled up everywhere, difficult to clean up, site management is not easy.

b. The method of hanging sand is costly and time-consuming and inefficient.

c. The artificial mixing is uneven, the quality of the construction mortar is poor, and it is easy to cause cracks.

d. The construction process of the workers is unstable, which may cause poor construction conditions, such as cracks, leaks, etc.

e. Workers have slow construction progress and low efficiency, resulting in extended construction period and increased overall construction costs.

With the aging of construction workers on construction sites, and the new generation after the 90s, they are reluctant to step into the tough industry of construction. The contradictions have intensified, resulting in a shortage of workers on construction sites and a significant increase in workers’ wages, resulting in a significant increase in construction labor costs. .

V. Yi Shibao one-stop vertical conveying / mechanized construction

a) Analysis of the current status of machine mortar

1. Necessity and economic benefits of mechanized construction of mortar:

With the rapid development of economic construction, the scale of urban and rural construction is expanding, and the quality requirements of construction are constantly improving. However, the construction site is facing shortage of construction workers, rising wages and increasing costs;

Faced with the above-mentioned pressures, it is the time when the engineering method is reformed, the mechanization and the supporting materials are used, and the advantages of quality and comprehensive cost are ensured.

1) Difficulties and opportunities faced by machine spray mortar:

Dilemma:

The resistance of the subcontracting system, the increase in material costs, the limitations of high-level transportation and machine-spraying equipment, and the lack of mechanized construction professionals;

opportunity:

On the basis of dry-mixed mortar or on-site preparation of mortar, the machine spray equipment is matched with the small material/additive, and the on-site material cost remains unchanged, which can achieve good pumpability and smearing, and also meet the requirements of the specification.

2. Application, marketing and popularization of mechanized construction

1) Must have the right material: machine spray mortar (mortar)

2) Must have the right equipment: machine spray equipment (ash machine)

3) Must have properly trained shotcrete masters;

※ The above three items are indispensable

3. Materials and equipment

Mechanized construction requirements for mortar (pumpability and smear), not all mortars can be pumped, machine spray mortar materials must meet pumpability and smear, so that it can be pumped through rubber hoses or steel pipes Send and spray.

b) Application analysis of machine spray mortar

1. Vertical transportation system is adopted at the site

Advanced rotary method (mechanized construction):

Construction methods:

Using the most advanced concept, replacing the manpower with automatic machines, only need to stack the raw materials in the appropriate place to automatically stir the machine, add small materials / admixtures, the mixture can achieve good pumpability, sprayability, automatic delivery to the place Floors required, not only the construction area is large (vertical conveying height can reach 85 meters, horizontal radius can reach 200 meters) and the speed is fast, the efficiency is high, and the construction quality is stable.

Advantages of advanced construction method (mechanized construction):

a. The site is clean, tidy, concentrated, and civilized.

b. There are few construction workers required (only one set of machines is required for 6 people). Large amount of completion, high efficiency (300 -500 m2 / day). The construction quality is stable.

c. The construction quality of the automatic mixing mortar is stable and the wall surface is not cracked.

Small material + stirring + mortar pump

d. The machine is placed on the bottom layer, and the construction scope is large (the vertical height can reach 85 meters and the horizontal level can reach 200 meters). It does not need to be moved due to different construction sites.

e, time-saving, professional, environmentally friendly, efficient, and high return on investment.

Yi Shimei machine spray process, vertical transport, make construction easier!

Solve vertical conveying and improve construction efficiency

2. Construction site using vertical conveying system:

3, equipment composition

1) mixing and stirring                           2) vibration                           3) squeeze pumping

4, application characteristics:

Extrusion mortar pump is not affected by mortar viscosity and sand particle size, it is not easy to block, all kinds of mortar can be sprayed thick and thin layer, and the pump body is small, light weight, easy to install, low cost of consumables, suitable for use Vertical conveying and spraying at the middle and upper levels.

5. The daily delivery volume per device is about:

2 to 3M³ x 10 hours/day per hour

      Daily delivery is: 20 ~ 30 M³ / day

6. The mortar can be directly and directly transported to the 80-meter high floor, which greatly improves the mortar conveying speed at the construction site and improves the construction efficiency.

7. Reduce the occupation time and space of the elevators, ensure the normal transportation of other materials on the construction site, and ensure the construction progress.

8. The amount of mortar transported by the elevator can not meet the demand for mortar in large projects, which seriously affects the construction period, and the vertical transport system of mortar can meet the demand of mortar.

9. Machine spray construction/manual can be used, and the work efficiency is greatly improved.

Cost analysis of full manual and mechanized spinning of machine spray mortar (Pearl River Delta 2011)

Interior wall plastering thickness 20mm                                Floor height: 60 meters

Construction time：07: 00~18: 00                              Completion：350~450㎡/day

※According to 6 people group (3 major workers×250元、yuan/day=750yuan）           （3Small work×150yuan/day=450yuan）

The mechanized construction of wall plastering has undergone a long process. With the aging of construction workers, lack of labor and increased costs, its advantages are increasingly obvious and will be favored by construction workers. At the same time, it has been a long process to meet the mechanized construction of wall plastering. With the aging of construction workers, lack of labor and cost, the advantages are increasingly obvious and will be favored by construction workers. At the same time, mechanized construction that meets the construction quality, construction efficiency and workers' construction requirements is imperative.

Sixth, supporting accessories: wall plastering system supporting accessories:

a) using a professional small material + mortar machine

1, small materials / admixtures:

The machine spray mortar small material / admixture is used together with the on-site preparation of mortar or dry-mixed mortar, which can improve and enhance the pumping and spraying functions of the mortar after mixing. Masonry bonding and anti-seepage and anti-cracking plastering mortar produced by using mortar admixture have the characteristics of good water retention and strong cohesiveness, and have excellent impermeability and crack resistance, which fundamentally solves the long-term problem. Existing building wall leakage problems.

The product is suitable for masonry bonding and plastering materials such as new wall materials, light bricks, ceramsite bricks, hollow bricks, autoclaved fly ash bricks, autoclaved aerated concrete blocks, etc. Or apply the paint directly after applying the putty to achieve better results.

2, mortar machine

Comprehensive analysis and analysis, the use of small material modified mortar can meet the pumpability and sprayability of machine spray mortar, with the mortar machine for mixing, vertical conveying, spraying, simple operation, less initial equipment investment, construction cost predominance, is The most suitable application system at present.

3, Yi Shibao admixture system

1) EP mortar small material system:

2) Tile bonding small material system

3) Window frame pouring cement, floor small material system

b) Supporting wall plastering system accessories to improve the overall quality of plastering:

1, gray cake

2, angle strip:

1) Types and styles of angle strips:

2) Analysis using rubber strip corners:

A) Traditional sun angle construction problems

The construction efficiency is low, the verticality construction is difficult, the appearance is not beautiful, and the strength is not high enough, and it is easy to be damaged, which may affect the quality of the project acceptance.

Professional corner line advantage

B) It is made of high-strength PVC raw material, with impact resistance, anti-aging, excellent mechanical and mechanical properties. It can effectively solve the quality problems in the long-term existence of building construction, such as not being straight, not beautiful, and easily damaged.

The strip can be widely applied to the construction of various corners of the wall. It is easy to operate, can simplify the construction procedure, speed up the construction speed, reduce the engineering cost, improve the work efficiency by 3-5 times, and ensure the construction quality can be effective. Increase the impact resistance of the corners and prevent the corners from cracking, thus keeping the corners permanent and beautiful.

C) Work efficiency analysis

Traditionally, 2 workers can construct 50-80 m Yangjiao corners in one day, while professional strips can be used to reach 200-250 meters and improve work efficiency by 3-5 times. And greatly reduce the cost of maintenance.

Construction with professional corner rubber strips, the labor costs are:

2 workers: 1 major work 300, 1 small work 150, total 450 yuan / day

The construction cost of the Yangjiao is about: the cost per meter is: 450/80–450/50=5.62-9 yuan/m

Professional construction: 450/250/-450/200=about 1.8-2.25 yuan/meter

Labor cost difference has been: 4.25-7.5 yuan / m

D) Cost analysis: The cost of the strip is about 2 yuan / m. Compared with the ergonomics of saving, it has great advantages.

3, the application of angular lines

Wall

staircase

bathroom

Traditional window frame processing

Professional window frame processing

c) Professional window frame anti-leakage system: to solve the window frame leakage phenomenon

1. Use professional auxiliary tools to construct and professionally inject glue guns to ensure construction quality:

2, the use of specialized window frame admixture small material: polymer admixture

3. Work efficiency analysis

1) The amount of material used in the window frame door system

According to the frame frame width of 8 CM, the filling thickness is 4 CM, and the length is 1 meter.

The amount of cement used per meter of window frame is 0.05 m * 0.02 m * 1 m * 1500 KG / M3 = 1.5 KG / M

2) Work efficiency

A) The number of traditional workers repairing window frames for one day is about 40 meters / 8 hours / day, about 5 meters / hour is artificially 200 yuan / day, and the labor cost is 5 yuan / M.

B) The efficiency of the glue gun with window frame is: 10-20 meters per hour

Work efficiency is traditional manual 10-15 meters / 5 meters = about 2-3 times

4. Cost analysis of window frame pouring cement

The cost of using the window frame to inject the cement admixture mortar is (normal type)

0.1 yuan / KG * 1.5 KG / M = 0.15 yuan / M

5, in order to strengthen the window frame waterproof, it is recommended to use Yi Shibao flexible waterproof coating to paint the window.

According to the application window 10MM, the area per meter is about 0.1M2, the cost of the window frame waterproof coating is about: 1 yuan / M

6, construction site map

1) Injecting the stirred window frame into the mortar

2) On-site construction of window frame system

In summary, professional construction workers, using professional mortar materials and equipped with professional construction equipment, are the main development direction to improve the construction quality and work efficiency of the building. It is also the one-stop solution to the leakage of walls and window frames.