Pay attention to the eight secondary epoxy grout taboo, you learned!

Pay attention to the eight 1 this second epoxy grout using taboos. Grassroots dirty soft grouting slurry can be firmly bonded with hard clean the grass-roots level or package, but bond grip strength related to surface roughness at the grass-roots level, due to the moisture of hydration needed only about 20% by weight of the secondary epoxy grout, excessive evaporation will leave a lot of pore in the concrete, thus reducing the strength of the concrete. In the process of construction, in order to make the grouting slurry with base grip intertwined, must cut brush half in advance. 2. Wet water hardening and hardening the second epoxy grout can reduce or even the loss of original strength, related rules, the factory for more than three months of secondary epoxy grout should be reviewed according to the results of the test and use. 3. Negative temperature and freezing after concrete or mortar mixing, once frozen, the second time can't epoxy grout hydration, the water will freeze and expand, so that the damage of concrete or mortar from surface gradually deepen to the inside, so construction must be in accordance with the requirements. 4. Ash of water in the process of allocation, we tend to ignore the water consumption's influence on the strength of concrete. In order to facilitate pouring and tamping, concrete mixture ratio is small, it will seriously affect the strength of the second epoxy grout. 5. Acid erosion in the serous acid neutralization reaction with calcium hydroxide and organic loose expansion volume, easy to hydrolysis, powder after water. 6. Aggregate is not pure sand as aggregate of concrete or secondary epoxy grout, if there is dust, clay, or other organic impurities, will affect the second epoxy grout and the bonding strength between sand and gravel, eventually reduce its compressive strength. 7. If high temperature and extreme heat curing layer mortar or concrete structures are often in high temperature and under the premise of extreme high temperature, the intensity will be lost. 8. Rapid drying in the sun or concrete grouting after exposure to the sun, will quickly evaporate moisture, the strength will reduce and even lost. More than eight secondary epoxy grout is taboo, you learned!