Really stone paint whiskering situation analysis and processing of construction ( A)

Really stone paint construction engineering has a great influence to the whole really stone paint. The quality of the true stone paint itself even better. If the problems appeared in the process of construction, will not be able to achieve the result of high quality engineering. KeBao has rich experience in construction really stone paint, in construction process is also very strict to the team. Today, we mainly want to talk about really stone paint weathering problems: 1. What really stone paint is suffused with cream really stone paint generic cream is refers to the basic material in the base material with water migration to coating and the coating surface, irregular form color, powder falls off, sometimes really stone paint appearance irregular film on the surface of the generic cream also known as the 'frost'. (1) with the emergence of caustic soda, really stone paint usually similar maps of the coating surface crack, crack edge color changes significantly, each surrounded by a crack area from edge to the middle color changes significantly, which is a typical phenomenon of large area of caustic soda; (2) under the window sill exists generally, because the window contact part of the connection is not good, common alkali leakage after formation. At this time, under the windowsill found everywhere. In serious cases, a large number of ubiquitous alkali can make the paint surface appear white line, even flow to the next layer in the window. (3) weathering sometimes appear in the region of the earth's horn line, because it is directly connected with the ground, can absorb the moisture from the ground form of weathering, but usually takes a long time to appear. (4) sometimes, really stone paint surface caused by the leakage of water supply and drainage system into alkaline. Really stone paint seeps alkali is usually white, so when the paint is white or light color, even if it is difficult to find from the outside, the deeper the color, the appearance of the more obvious difference. Sometimes really stone paint generic cream is yellow, the water will be out of the chromatic stripe in the cement. II。 Really stone paint the sources of the ubiquity of alkali in A. Base material high alkali content ( Ph value of 10) Wall construction using cement (usually Varnish, cement concrete, mortar, cement putty, etc. ) The mixture. ) , the main components of the cement is calcium oxide ( 62 - 67%) , but also rich in NaO, magnesium oxide, K2O and other basic components. It can be dissolved in the water. Under the action of water, it into the paint film surface, reaction with CO2 from the air to form salt ( White) b。 High water content, 10%) Water is the basic means of transport, it dissolved alkaline components and brought to the surface, it cause the basification.