First, does the epoxy grounds around a house engineering design direction
basic plane condition
according to the basic plane (new casting coagulation soil surfaced road, terrazzo, old hardened wear-resisting surface old epoxy stratification plane) the structure, the smoothing intensity, whether there is a building make the aquiclude and so on the condition choice appropriate grounds around a house construction craft types.
The operational performance requests
the A. resistance to wear: According to the grounds around a house frequency of use, whether there is do the vehicles walk and so on.
B. resistance to pressure: According to use when possibly withstands the great weight.
C. anti-shocking: Whether has the heavy item to fall.
D. corrosion resistance: According to the chemical, the solvent type, the contact duration, the density analyze.
E. color: The color confirmed whether stroke section line.
F. gloss: Bright, plain glass, lusterless.
G. other requests: Whether requests to guard against the static electricity, the skid prevention, the mold proofing, guards against the heavy corrosion and so on.
Second, the epoxy grounds around a house project construction condition and the element request
1, the element to request
the maintenance time: Regarding the new cement floor or the new terrazzo floor, the request maintenance amount to above 28 day, moisture content below 8%.
Cuts off the water supply processing: Regarding a building ground, in the request cement concrete structure has implemented firmly makes the waterproof dampproof course, can prevent effectively the underground moisture seeps out the surface, otherwise best uses the river character epoxy coating.
Smoothing intensity: 3000PSI (210kgf/Above cm2 or C-25) above
moisture content: 8% following
smoothness: In when
2~3mm/2M 2,
the climatic conditions cloudy rainy day or the atmospheric relative humidity are higher than 85%, either the temperature in 10℃ below, should avoid constructing, either changes to other low temperature moisture product, guards against the paint surface not bright, the blanch or does not do.
3rd, the location preparation
job location must walk clear all sundry goods, best avoids the overlapping construction, the prohibition irrelevant personnel comes in and goes out.
Ground must not have the ponding and the greasy dirt, must maintain dryly pure.
The scene must be possible the connection power source and the water.
4th, the ground pretreats
the ground like to have the minority place to be moist, before the construction the available gas gun compulsion is dry; If has the greasy dirt and so on, needs the special-purpose detergent to make clean processing.
5th, between the construction
time interval every two paint level construction time interval is: 8 hour /12 hour /24 hour. Below the concrete time interval must according to the factor: Material different, paint level thickness, temperature height.
Third, epoxy grounds around a house use notice
1.After finishes may the period of revolution: After 24 hours may open the walk, after 72 hours may withstand the underloading.
2.Most ideal intensity: After 7 days, the grounds around a house performance is completely stable, achieves the most ideal intensity.
3.Maintains the clean health: The epoxy ground needs to maintain the clean health, like has the sand dust pellet, the hard material garrulous pellet and so on, must sweep clear promptly cleanly, in order to avoid scratches the ground after the roller compaction; The personnel steps aside from enters the workshop not to have to take into the sand dust; The workshop and the warehouse inside and outside use different forklift makes the connection, the outside forklift do not have to go in, the inside forklift do not have to come out, in order to avoid takes into the sand dust.
4.Avoids hitting and scratching: Avoids the overload the machine, the object direct hit ground; Avoids the incisive component scratching the ground; If has the forklift, the handcart and so on walks, should use the rubber wheel.
5.Prompt elimination greasy dirt and solvent: Although constructs the grounds around a house to have the good acidproof alkalinity, but also must nurse properly, like has the water, the acidity or the alkalinity solvent, the machine oil equivalence in the ground, should clean up promptly, should better not have to surpass for 24 hours.
6.Prompt patching breakage: If the grounds around a house paint surface has the breakage, place of the breakage also has the greasy dirt to drop, then damages place needs prompt patching, guards against the greasy dirt isotonia to enter in the element structure or under the paint level.
7.Finishes newly the grounds around a house special protection:
Finishes newly the workshop workshop, possibly can have other construction to enter carries on the later period to install, work and so on repair, therefore needs to carry on to the epoxy grounds around a house protects specially:
(1) personnel passes in and out the workshop only from one, two accesses, best faction security duty.
(2) difference personnel must eliminate the shoes or trade the slipper (to be possible spare some clean soft bottom slipper) to be able to enter.
(3) must not have hard to tow the line in the ground, does not have the putty, the granulated substance and so on to take into the scene.
(4) carries on other works (e.g. electric welding, brushes other coatings and so on) the place, certainly must in the ground materials and so on upholstery plank, PVC cloth, paper box skin make the protection, avoids damaging, smearing the epoxy grounds around a house.
Fourth, how is more lasting make the epoxy resin grounds around a house adhesion and the service life
constructs in front of the epoxy resin grounds around a house, to the original cement element or the terrazzo (terrazzo) the element place pretreatment is extremely important. Certainly must be rough its superficial polish, can make the ground and the epoxy resin varnish level adhesion enhancement, future upward will walk in the epoxy resin grounds around a house heavy items and so on forklift, cart, becomes less crowded very difficultly the grounds around a house paint, falls off, might become time of extension epoxy grounds around a house paint the service life.
Polishes the ground the ideal machine - - sand
to polish the ground the main mechanical device to have the levigator, the mill digs machine, dustlessness grinder and the sand (calls to throw pill machine) and so on. Polish effect best is a sand, often value several ten thousand to several hundred thousand Yuan. In Taiwan, very many customers all request to use the sand to make the ground polish.
Inside the sand has installed the very many finely ground particles steel pill, the machine through the machinery acceleration, is attacked the steel pill by the very high speed the ground, damages the ground, then the snapping back, returns attracts to the air trap in, completes the steel pill and the dust, the impurity separation in there, the good steel pill enters throws the pill room circulation use, the dust and the impurity transports the dust remover.
After the sand blasting processing ground, can form the extremely even close pockmarked face in the surface, may make the extremely ideal close cementation with the epoxy grounds around a house paint. But ordinary dresser, either is delimits the circle to rub, the produce by rubbing is a circle arc, either is rubs the surface pulverizing sticks, the pocket also often does not polish.
Which grounds need to make sand blasting processing?
Because old paint ground smooth, needs to damage or the entire level elimination completely is clean, needs to sand-blast processing; Specially smooth hard ground, if the emery hardening ground, the common dresser cannot rub the trace, only can the idle operation, need to sand-blast processing; Has not made the dampproof course or the underground humidity heavy ground, for prevented the underground hydraulic pressure goes against the epoxy grounds around a house paint the air bubble, the blister, also needs to enlarge the adhesion, makes sand blasting processing; Has region which the machine vibrates, for prevented the vibration causes the grounds around a house paint to fall off loosely, also must make sand blasting processing. Even if is not above the type ordinary ground, for urges the grounds around a house paint and the ground is then closer solid, causes the grounds around a house paint the adhesion and the service life is more lasting, best also uses the sand blasting polish.
Note: The ground uses sand blasting processing, can cause the project cost to increase, asks the customer according to the actual situation and the budget cost makes the choice.
Fifth, the epoxy resin grounds around a house construct the defeat factor analysis and the prevention method
(1) blister
◆ reason
1) nearby the syntagma basement, the water tank, the bottom floor or other ground moisture humidity are high;
2) has not done cuts off the water supply processing or the primer seal is not good.
before ◆ the prevention method
1) constructs assists by the moisture idea to judge first;
2) the moisture and the hydraulic pressure too high place must do first cut off the water supply processing;
3) chooses the water affinity epoxy resin primer.
(2) chromatic aberration
◆ the reason
1) the epoxy resin coating main medicinal preparation precipitates, the full agitation has not been even;
2) expects but actually in the ground, of contact duration long time with first connecting point;
3) coating thickness is uneven;
4) constructs the midway to break the material;
5) uses the different batch number finish coat.
before ◆ the prevention method
1) constructs the host medicinal preparation to be supposed to be first full stirs evenly;
2) avoids with the first connecting point contact gap being greatly long, the entire operation line together constructs as far as possible;
3) uses the fixed tool and the enhancement constructor as far as possible constructs skilled;
4) the coating must one time prepare the foot, prevented breaks the material;
5) uses the identical batch number coating as far as possible.
(3) crater
◆ the reason
1) the lower level has the cavitypit;
2) the lower level has the greasy dirt;
3) coating itself reason;
after before ◆ the prevention method
1) constructs uses the epoxy to approve the earth first to level cavitypit patching carries on again the construction;
2) is clean the lower level greasy dirt elimination;
3) selects the appropriate coating.
(4) blanch
◆ reason
1) the winter paint reaction rate excessively is slow, also the hardening agent and the air responded has the white fog shape;
2) in low temperature wet situation construction;
3) after constructs suffers the water cut to enter.
◆ the prevention method
1) chooses the suitable hardening agent;
2) avoids the low temperature wet condition construction, has to when should adopt the warming to eliminate the wet measure, if the air conditioning adds the temperature drop to be wet, heater unit warming;
3) after avoids the construction having the water cut to enter.
(5) indentation
◆ reason:
1) after the trowel trowel spreads, again has not levelled;
2) the coating viscosity excessively is high, flows even not to be good;
3) coating response excessively quickly.
◆ the prevention method
1) uses the trowel to spread the cloth evenly correctly;
2) selects the viscosity lowly, flows the even good coating (especially in winter);
3) the summer chooses the response not too quick coating.
(6) reveals the inside story
◆ the reason
1) the coating to spread the cloth thickness to be insufficient;
2) the coating spreads the cloth to be non-uniform;
3) the coating itself hiding power is not good.
◆ the prevention method
1) the varnish film must achieve the enough thickness;
2) the varnish film spreads the cloth evenly;
3) selects the enough hiding power the coating.
(7) air bubble and pinhole
after ◆ the reason
1) mixes the reaction rate excessively quickly;
2) the intermixture viscosity excessively is high, creates the antifoaming too to be slow;
3) the temperature too is low, the antifoaming is difficult;
4) grounds around a house rough porous.
◆ the prevention method
1) selects produces little the mechanical air bubble agitation equipment, after the mix even, settles suitably the antifoaming 3-5 minute;
2) spreads approves makes up, the finish coat approves makes up seals up the grounds around a house sand hole;
3) spreads when the cloth levels, the surface does not allow to have the visual air bubble, if still had the air bubble, put on is nailing shoes enters, soaked or the antifoaming with the acupuncture rolls loses the antifoaming.
(8) epoxy grounds around a house peeling and the destruction
◆ reason
1) the primer chooses improper;
2) the primer excessively is thick;
3) the coating level spreads the time to grow again;
4) the heavy item degenerates;
5) greasy dirt surface construction;
6) the layer of cement is not firm;
7) constructs the layer of cement to have the hydraulic pressure rise.
◆ the prevention method
1) chooses the suitable primer system, and carries on the small area experiment primer adhesion;
2) chooses the suitable epoxy system and the craft executes does, strengthens the impact resistance;
3) the greasy dirt area must clean first, after reorganizes cleanly, only then constructs;
4) the underground hydraulic pressure excessively is high, should change to the river character primer or execute first does cuts off the water supply the level, after spread the cloth previous day again to carry on the next working procedure.
(9) superficial not smooth
◆ reason
1) constructs the impurity to mix in;
2) the ground is not smooth, the fluctuation oversized or executes makes the grounds around a house specification too to be thin;
When 3) the material spreads the cloth, the part responded, viscosity oversized, even produces the hard lump;
4) constructs the interrupt material, links up without enough time.
◆ the prevention method
1) the environment endeavour is clean, the quartz sand should choose pellet even;
2) ground processing is smooth, and clean clean, the depression must patch, the attachment must eradicate, elects according to the actual situation to make the suitable specification grounds around a house;
3) around the material spreads the cloth, must to finish in be possible the period of revolution engagement. In order to avoid surpasses the period of revolution, the material viscosity oversized is unable to flow naturally evenly, or in the barrel survives the partial coating to produce the little hard lump, this time should replace the new drums.
(10) does not do or does not do partially
◆ the reason
1) the temperature too is low or the temperature too is high, completely had not responded;
2) the host medicinal preparation and the hardening agent allocated proportion errors, or has not added the hardening agent;
3) hardening agent errors;
4) when host medicinal preparation and hardening agent mix the agitation has not been even.
◆ the prevention method
1) avoids the low temperature wet condition construction, under the low temperature should choose the low temperature response the hardening agent;
2) the host medicinal preparation and the hardening agent must according to the proportion mix;
3) the hardening agent cannot use in common;
4) after the host medicinal preparation and the hardening agent must stir fully evenly construct. |
