Cement the alkali treatment causes and methods of use

1, cement powder (1) improper water added, should be in proportion to add water ( Powder: water = mighty ~ 6) 。 (2) mixing unevenly, should be fully mixing with electric mixer. (3) water deficiency ( The weather is dry or base bibulous rate is higher) , surface drying too quickly, before construction should be wetting base level, the construction should be appropriate to drench water after curing. 2, excess cement strength is not enough (1) adding water, should be in proportion to add water ( Powder: water = mighty ~ 6) 。 (2) when pointing should be compacted cement. (3) after construction can be properly maintained. (4) using the environment is different, there are differences between the curing time, strength development is different, as long as the curing condition is met, can achieve proper strength. 3 loses its luster after jointing cement, cement surface, soft tools are available ( Such as: sponge) Graze on the cement surface, can make the cement surface is bright and clean bright. 4, cracking of cement in (1) the weather is dry or base bibulous rate is higher, no maintenance. Should pay attention to the weather, timely maintenance. (2) the caulking without compaction cement. Caulking special tools should be adopted, the force will be filled. (3) substrate has a slight vibration, should be highly respected. 4 in 1 bottom oil mixing or additive instead of water. 5, brick surface is difficult to clean (1) cleaning time is too long. Usually, the cement construction within 30 minutes, must be clean with the brick surface ( The early to wash) Must be cleaned, 2 hours. (2) the brick itself have bleeding phenomenon. Before the construction, should brick experiment, found the bleeding phenomenon, deal with brick, if use marble guaranteed new agent on tile surface treatment, then compare caulking processing (3) rough surface or porous brick, cement special tools should be adopted, Such as glue gun) For caulking, or using other brick face protection. 6, cement color difference problem (1) due to the construction of base level or tool cleaning not clean, before construction should be carefully cleaned. (2) material mixing unevenly. Should use mixer to stir, and let stand for 5 minutes and then used a stir again. 7, cement white problem (1) cleaning time without mastering, premature to clean. (2) with large concentrations of acid cleaning by 5 ~ 10% oxalic acid and 5 ~ 10% hydrochloric acid FanJian cement is wiped or water cannons spray processing, should use neutral detergent. Dry static. (2) there is yellow powder on the surface of the ceramic tile and should be cleaned before construction. (3) the construction of the tool is not clean.