Where appropriate composition with raw material till the partial melting of Wuhan cement agent, the resulting calcium silicate as a main component, iron content of less clinker cement Wuhan appropriate amount of gypsum, ground made of white cement matrix cement, called white Portland cement (referred to as white cement). When grinding cement, allowing no more than 5% of the added weight of cement limestone. NOTE: allowed to join without impairing the performance of cement grinding cement grinding aids, added in an amount of not more than 1% by weight of cement. Mixed with other additional material, it must be tested and reported to the approval of the Ministry of Building Materials Industry. Technical requirements magnesia clinker MgO content shall not exceed 4.5%. Content of sulfur trioxide trioxide cement shall not exceed 3.5%. Fineness 0.080 mm square hole sieve shall not exceed 10%. Setting time initial set no earlier than 45 minutes, the final setting not later than 12 hours. Stability test with boiling cooking method, had to qualify. The strength of each label corresponding order of strength are not less than the value in Table 1: Table 1 grade cement compressive strength, kg / cm 2 compressive strength, kg / cm 3 days 23 days 28 days 28 days whiteness of white cement minimum whiteness not less than 87. Wuhan cement dealers, cement, cement pavilion by pavilion Hongshan District of Wuhan cement operation. Hongshan District of Wuhan pavilion cement business unit (www.whltsn.com) (www.hbltsn.com) strong, credible, in Wuhan of cement and related products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead gazebo cement into the brilliant and you work for a better future!