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1、地面环氧树脂（Ground epoxy resin）A, construction preparation1, material preparationThe 1.1 main materials:Epoxy resin coating, leveling primer (base oil), surface treatment agent, filling putty filler, such as quartz sand, quartz powder. Epoxy resin coatings for leveling the two components, should be in a
2、certain proportion and mixing, the quality standard is shown in the table below.Table 1 technical index of epoxy resin coating levelingTechnical index of test itemsEven without hard coatingThe film smooth appearance.Dry drying schedule (25 DEG C) less than 4 hWork (25 C) less than 24 hWear resistanc
3、e (750g/500r), g = 0.04Adhesion (level) is less than or equal to 1Hardness (pendulum method) = 0.6The ratio is more than 0.87Gloss (%) = 30The impact resistance of 40Kgcm no crack, wrinkle and peeling phenomenonThe water resistance of 96h without exceptionAlkali resistance (10%NaOH) of 96h without e
4、xceptionSalt water (10%NaCl 96h) without exceptionThe 1.2 transportation and storage:Sealed storage, avoid the breakage of packing and rain. In a dry and ventilated place, avoid high temperature, sunlight exposure and freezing is prohibited. In 5-40 C storage period for 612 months.2, equipment prepa
5、ration:2.1 brush or roller, barrel, low speed agitator (400 RPM) or electric stirring gun, special shoes, trowel, special needle tooth scraper, gas cylinder.2.2 construction machines need to be cleaned before use. After the tool in the dry time water cleaning, so as not to affect the next use.3, bas
6、ic level processing:3.1 the construction of the base should be smooth, rough, remove dust, old coating, more than C25 strength, and water treatment, water is not clean, compact. Is not loose soil, loose particles, gypsum board, paint, plastic, vinyl resin, epoxy resin, and adhesive residue, oil, par
7、affin, and greasy contaminants such as curing agent.The concrete shall not be less than 4 weeks, at the cost of repairing the shell is smooth, polished mechanically compacting base, and washed with water and vacuum clean the surface to dry loose particles. A pit or groove should be 1 days in advance
8、 of mortar or putty scraping leveling, ultra high or protruding point should be tackled or removed, to save material and improve construction quality.Base base. Self leveling mortar pouring rigid, and shall keep the expansion joint, can reduce the shrinkage effect.Determination of moisture content o
9、f 3.2Determination of moisture content has the following methods:1) plastic film method (ASTM4263): 45cm * 45cm plastic film on the surface of the concrete, sealed with adhesive tape with 16 hours after the film appeared under the black water or concrete surface, concrete that is too wet, not painti
10、ng.2) test method: through radio frequency instrument for transmitting and receiving radio waves through the difference to determine the water content of concrete.3) calcium chloride determination: Determination of moisture from escaping from the concrete process, is a method of indirect determinati
11、on of water content of concrete. Determination of calcium chloride in the sealed container weight after 72h, its value should be less than 46.8g/m2.The elimination of 3.3 waterConcrete moisture content should be less than 9%, otherwise it should be out of the water before painting. There are several
12、 ways out of the water:1) ventilation: strengthen air circulation, accelerate the air flow, water away,To improve the concrete moisture evaporation.2) heating: improving concrete and air temperature, speed up the concrete moisture migration to the surface of the rapid evaporation rate, should use fo
13、rced air heating or radiation heating. The combustion products directly with the fire heating generation (including water), will increase the cloud point temperature of air, causing water condensation in the concrete, it should not be used.3) decrease in the air dew point temperature, dehydrating de
14、humidifier dehumidifier, or the introduction of outdoor air (introducing outdoor air below the dew point temperature of the concrete surface and above) and other methods to remove water vapor in the air.3.4 surface treatment methodsFor the smooth ground, processing commonly used the following method
15、s:1) pickling method (applicable to oil pollution more ground): concentration of hydrochloric acid cleaning concrete surface 1015%, after the reaction to be complete (no bubbles), and then rinse with water, and with the scrub brush, this method can remove the mud layer and get fine roughness.(2) mec
16、hanical methods suitable for large area space): sandblasting or electric grinder to remove surface protrusions, loose particles, destroy the pores, increase the surface area, the vacuum cleaner suction sand, dust and impurities. The more the sag, pit ground, application of epoxy resin mortar or epoxy putty to fill the patch af
