Recently, the wrriter passes by the newly built sation and finds out there are some project flows in such luxurios place:there are different dirty strips between every two grey tiles. According to professional knowledge introduced by Stone Industry experts ,the occurrence of these phenomena have directly relates to not-well protected marble floor tiles .

Everyone who ever kown something about stone materials will kown that when pave the marble material, particularly the wet work with cement mortar,the surfaces of the marble tiles have to be protected,namely, brushing special liquid on to them in order to block the alkaline substances erode the stone, thus the "pan-alkali " phenomenon. But the special liquid is non-color, so it is difficult to inspect the brushing effects, or even kown nothing when the surfacesare not to be brushed. So the not-well protected stone material can be used in some projects.

Maybe some peopledo not think so ,and they think this is captious, and excused by catching up schedules. However, I believe it is the unconspicuous place can reveal some of the construction problems and remaining problems of construction enterprises. Think about it ,the new line started in October why Just in the few days, the surface reveal so many problem. How to explain this? The inspection department haven’t seen the problems? I think something must be wrong in some stages during the construction project.We hope beautiful and flawless project.

Renovation crystal engineering：

1. To fill the stone crevice—it is an important way to fill the stone crevice.we must pay much more attention to the way.the material in filled in the crevice should be splice, non-grain, water resistant and can be polished. according to technology, we chose the German super-marble cracks to fill. It takea more than two hours to dry.

2. Levelling, Flaness, tumbled and polished---by warterproofing, the stone color changes. We do not directly adopt tunbled way, but tumble the chaned color surface with the O# steel wool in order to make it to reveal the original surface. Luckily, we get better effects by the above way because protective agent infiltrate the stone slightly. The color-changing problem is resovled. The second way is to use marble diamond grinding, water mill films and level-polishing, which is still unused.

3.Dealing with yellow rust---acordding to the whole plan, we shoule remove the heavy rust with wool steel and then use special marble rust removel to remove the rust.

4. Warterproof and protective---clients want to avoid the recurrence of watermarks. To protect the tumbled floor, we learnt the lessons from color changing. Test the same stone with some kinds of better waterproof agents, in order to chech the waterproof effect and chech if the stone color changes, and decide the dosage according the water absorption. After have done those,we can start the warterproofing. The main points of the warterproofing is as follow:a)clean th esurface; b) dry fully;c) brush the protective agent equably; d) natural air dry for over 24hours.

5. Crystal processing: we use the Spanish crystal hard agent and optical agent according the description, pressurized through equipment and low-speed polished so that agent-based products generate heat reaction, and non-slip surface can be formed