Clear the cement, the mud is pure purple clay ore processing directly banal mature mud (purple raw sludge appearance of stones, into a sheet structure, fine clear teapot made of cement by open stockpiles of natural weathering for some time, can . broken down into particles the size of soybeans crushed into the desired fineness by machining, add water to reconcile rub practice, then into "mature mud"), we call it "Poor mud," for the more commonly used mud; kiln temperature : 1160 ~ 1180 degrees. Shrink ratio: about 11%. Wuhan Qing ore cement cement bricks, because of the mud, as the peak of ancient Wuhan cement, after long-term use old gorgeous, but is most fond of ancient pottery used to spread more pass filter of mud, so as to clear the name of cement ; and the reward is for two of the most respected of the mud. Between the latter and the clay silica and alumina and iron ore solid phase reaction of compounds, their existing form, there are four cement, that tricalcium silicate (3CaO · SiO2 Wuhan cement, abbreviated C3S), dicalcium (2CaO · SiO2, abbreviated C2S), tricalcium aluminate (3CaO · AI2O3, abbreviated C2A) and Fe-Al tetra calcium (4CaO · Al2O3 · Fe2O3, abbreviated C4AF). There are a small number of uncombined calcium oxide and periclase (MgO). Wuhan peak of cement, cement pavilion (certified), cement provided by the Hongshan District of Wuhan pavilion cement operation. Hongshan District of Wuhan pavilion cement business unit (www.whltsn.com) (www.hbltsn.com) was Wuhan, cement and products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Cement leader in the pavilion with the staff warmly welcome all inquiries negotiations to create a better future for cement pergola.