Cinema Station. Твоя станция кино

memorial benches 1st, the reasons for the formation connected with freezing and thawing
The particular phenomenon of freezing and also thawing occurs mainly inside the cold places near the northern and so on. When the stone tiny holes absorb enough water, after the temperature dropped below 00C, the water in the stone begun to freeze, the volume of extension.heart headstones When the expansion of the snow is greater than the strength force of stone, typically the stone will produce division. This is the phenomenon of very and thawing.
In general, materials is to comply with the "hot expansion and contraction" in the law, and the water is simply the opposite. The density associated with water is maximum from 4 ° C, as well as the water molecules are work independently. Water from several &񗠳 to 0 &񗠳, the temperature is lowered,cross headstones the water molecules in the normal water were arranged in a 3d pattern of an unusually free form, this structure in fact left a lot of "empty", often the density is reduced. Studies show that when 1M3 waters into ice, its quantity will increase to 1. 11M3. Then when the water into the stone skin or cracks after the cool icing, the volume increases, to be able to swell the pores or perhaps cracks in the stone, and after that the stone inhaled a lot more water, pores or breaks are further swollen, thus vicious follow, the final Causing the fragmentation of rock.
Second, freeze-thaw prevention
Because the main factors caused by freeze-thaw is water, we merely prevent the water into the natural stone can prevent the occurrence regarding freezing and thawing. Therefore , we only use gemstone curing agent to do a good-job on the protection of jewel on the line.