Failure Analysis and Prevention Method of Epoxy Resin Floor Construction
2018-07-28 17:01:08
] (a) blisters â—† reasons
1) The humidity of the underground water layer, the water tank, the bottom floor or other surface water of the structure is high;
2) Did not do water treatment or primer blocked.
â—† Prevention methods
1) Use water meter to help determine before construction;
2) The location where the water and water pressure are too high must first be treated with water cut off;
3) Select a hydrophilic epoxy primer.
(B) Color Difference â—† Cause
1) The main agent of epoxy resin coating is precipitated and not fully stirred;
2) The material is poured on the ground, and the contact with the front seam is too long;
3) uneven coating thickness;
4) The construction material is broken halfway;
5) Use different lot number finishes.
â—† Prevention methods
1) The main agent should be fully mixed and averaged before construction;
2) Avoid contact with the front joints for a long time, use the entire control line as much as possible;
3) Use fixed tools as much as possible and strengthen the construction staff's construction maturity;
4) The paint must be fully prepared at one time to prevent breakage;
5) Use uniform lot paint as much as possible.
(C) Crater â—† Cause
1) The lower layer has a cavity;
2) There is oil on the lower layer;
3) the cause of the paint itself;
â—† Prevention methods
1) Prior to construction, the pit shall be repaired and filled with an epoxy lot before construction;
2) Clean the underlying oil;
3) Select the appropriate coating.
(d) Whitening Cause
1) The winter paint reaction is too slow, and the hardener reacts with air to produce a white mist;
2) Construction in the occasion of low temperature and humidity;
3) Water intrusion after construction.
â—† Prevention methods
1) Select the appropriate hardener;
2) Avoid premise construction under low temperature and humidity, and take measures to remove heat and humidity when forced to do so, such as air-conditioning heating and dehumidification, heater heating;
3) Avoid water intrusion after construction.
(E) tooth marks â—† reasons:
1) After applying the trowel, no trowel was removed;
2) Coating viscosity is too high, poor leveling;
3) The paint reaction is too fast.
â—† Prevention methods
1) Accurately use trowel for average coating;
2) Choose a coating with low viscosity and good leveling (especially in winter);
3) Choose a coating that does not respond quickly in summer.
(6) The exposed bottom â—† Reasons
1) Coating thickness is not enough;
2) The coating is not evenly coated;
3) The coating itself has poor hiding power.
â—† Prevention methods
1) The film must be thick enough;
2) The average coating of the film;
3) Choose a coating with sufficient hiding power.
(vii) Bubbles and pinholes â—† Cause
1) The reaction speed is too fast after mixing;
2) The viscosity of the mixture is too high, causing too slow defoaming;
3) The temperature is too low to eliminate foaming problems;
4) Floor rough porous.
â—† Prevention methods
1) Use stirring equipment that produces less mechanical bubbles. After mixing, it should be left to stand for 3-5 minutes.
2) Apply the coating in the middle and make up the blockade of the sand hole in the surface coating.
3) When applying smearing, the surface does not allow visual bubbles, if there are bubbles, wear spiked shoes to enter, use acupuncture foam or defoaming to defoam.
(8) Epoxy Floor Peeling and Destruction â—† Reasons
1) Improper selection of primer;
2) The primer is too thick;
3) The coating time between paint layers is too long;
4) heavy weight falls;
5) construction of oil surface;
6) The cement layer is not strong;
7) There is a rise in water pressure in the construction cement layer.
â—† Prevention methods
1) Select a suitable primer system and perform a small area test primer adhesion;
2) Select the appropriate epoxy system and process to enhance impact resistance;
3) The oiled area must be cleaned first, cleaned up and cleaned before it can be constructed;
4) If the groundwater pressure is too high, it should be changed to a water-based primer or firstly applied as a water-cutting layer, and the next process should be carried out the next day after coating.
(9) Surface irregularities â—† Reasons
1) Impurities mixed during construction;
2) The ground is uneven, the undulation is too large or the floor is too thin;
3) When the material is coated, it has partially reacted, viscous and oversized, and even produces a hard block;
4) Discontinuities in construction do not meet up.
â—† Prevention methods
1) The environment strives for cleanliness. Quartz sand should be selected as the particle average.
2) The ground is flat and clean, the recesses must be repaired, and the attachments must be removed. Select the appropriate floor according to the actual situation;
3) Coating before and after the material must be completed at the time of use. In order not to exceed the time of use, the material is too viscous to allow natural leveling, or a small amount of hard coating remains in the remaining part of the barrel, and new barrels should be replaced at this time.
(x) quit or partially quit â—† reason
1) The temperature is too low or the temperature is too high to fully react;
2) The ratio of main agent and hardener is incorrect, or no hardener is added;
3) Hardener is wrong;
4) The main agent and hardening agent are not mixed on average when mixed.
â—† Prevention methods
1) Avoid construction under low temperature and humidity, and choose low temperature reaction hardener under low temperature;
2) The main agent and hardener must be mixed in proportion;
3) Hardener cannot be used universally;
4) The main agent and hardener must be mixed thoroughly and averaged.
1) The humidity of the underground water layer, the water tank, the bottom floor or other surface water of the structure is high;
2) Did not do water treatment or primer blocked.
â—† Prevention methods
1) Use water meter to help determine before construction;
2) The location where the water and water pressure are too high must first be treated with water cut off;
3) Select a hydrophilic epoxy primer.
(B) Color Difference â—† Cause
1) The main agent of epoxy resin coating is precipitated and not fully stirred;
2) The material is poured on the ground, and the contact with the front seam is too long;
3) uneven coating thickness;
4) The construction material is broken halfway;
5) Use different lot number finishes.
â—† Prevention methods
1) The main agent should be fully mixed and averaged before construction;
2) Avoid contact with the front joints for a long time, use the entire control line as much as possible;
3) Use fixed tools as much as possible and strengthen the construction staff's construction maturity;
4) The paint must be fully prepared at one time to prevent breakage;
5) Use uniform lot paint as much as possible.
(C) Crater â—† Cause
1) The lower layer has a cavity;
2) There is oil on the lower layer;
3) the cause of the paint itself;
â—† Prevention methods
1) Prior to construction, the pit shall be repaired and filled with an epoxy lot before construction;
2) Clean the underlying oil;
3) Select the appropriate coating.
(d) Whitening Cause
1) The winter paint reaction is too slow, and the hardener reacts with air to produce a white mist;
2) Construction in the occasion of low temperature and humidity;
3) Water intrusion after construction.
â—† Prevention methods
1) Select the appropriate hardener;
2) Avoid premise construction under low temperature and humidity, and take measures to remove heat and humidity when forced to do so, such as air-conditioning heating and dehumidification, heater heating;
3) Avoid water intrusion after construction.
(E) tooth marks â—† reasons:
1) After applying the trowel, no trowel was removed;
2) Coating viscosity is too high, poor leveling;
3) The paint reaction is too fast.
â—† Prevention methods
1) Accurately use trowel for average coating;
2) Choose a coating with low viscosity and good leveling (especially in winter);
3) Choose a coating that does not respond quickly in summer.
(6) The exposed bottom â—† Reasons
1) Coating thickness is not enough;
2) The coating is not evenly coated;
3) The coating itself has poor hiding power.
â—† Prevention methods
1) The film must be thick enough;
2) The average coating of the film;
3) Choose a coating with sufficient hiding power.
(vii) Bubbles and pinholes â—† Cause
1) The reaction speed is too fast after mixing;
2) The viscosity of the mixture is too high, causing too slow defoaming;
3) The temperature is too low to eliminate foaming problems;
4) Floor rough porous.
â—† Prevention methods
1) Use stirring equipment that produces less mechanical bubbles. After mixing, it should be left to stand for 3-5 minutes.
2) Apply the coating in the middle and make up the blockade of the sand hole in the surface coating.
3) When applying smearing, the surface does not allow visual bubbles, if there are bubbles, wear spiked shoes to enter, use acupuncture foam or defoaming to defoam.
(8) Epoxy Floor Peeling and Destruction â—† Reasons
1) Improper selection of primer;
2) The primer is too thick;
3) The coating time between paint layers is too long;
4) heavy weight falls;
5) construction of oil surface;
6) The cement layer is not strong;
7) There is a rise in water pressure in the construction cement layer.
â—† Prevention methods
1) Select a suitable primer system and perform a small area test primer adhesion;
2) Select the appropriate epoxy system and process to enhance impact resistance;
3) The oiled area must be cleaned first, cleaned up and cleaned before it can be constructed;
4) If the groundwater pressure is too high, it should be changed to a water-based primer or firstly applied as a water-cutting layer, and the next process should be carried out the next day after coating.
(9) Surface irregularities â—† Reasons
1) Impurities mixed during construction;
2) The ground is uneven, the undulation is too large or the floor is too thin;
3) When the material is coated, it has partially reacted, viscous and oversized, and even produces a hard block;
4) Discontinuities in construction do not meet up.
â—† Prevention methods
1) The environment strives for cleanliness. Quartz sand should be selected as the particle average.
2) The ground is flat and clean, the recesses must be repaired, and the attachments must be removed. Select the appropriate floor according to the actual situation;
3) Coating before and after the material must be completed at the time of use. In order not to exceed the time of use, the material is too viscous to allow natural leveling, or a small amount of hard coating remains in the remaining part of the barrel, and new barrels should be replaced at this time.
(x) quit or partially quit â—† reason
1) The temperature is too low or the temperature is too high to fully react;
2) The ratio of main agent and hardener is incorrect, or no hardener is added;
3) Hardener is wrong;
4) The main agent and hardening agent are not mixed on average when mixed.
â—† Prevention methods
1) Avoid construction under low temperature and humidity, and choose low temperature reaction hardener under low temperature;
2) The main agent and hardener must be mixed in proportion;
3) Hardener cannot be used universally;
4) The main agent and hardener must be mixed thoroughly and averaged.
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