摘要
王家庄石膏矿床规模大、品位富（ＣａＳＯ４·２Ｈ２Ｏ＋ＣａＳＯ４７５６３％～９８．２０％），矿物成分简单，以石膏为主（６９．１２％～９６．５１％）；矿体呈层状产出，埋藏浅；矿石为块状、条带状构造。在１４０℃，２ｈ条件下煅烧制得的熟石膏抗折强度为５２１ＭＰａ，抗压强度为１０３９ＭＰａ，白度为８５５％，凝结时间６～９ｍｉｎ。轻质石膏空心砌块抗压强度为２９４ＭＰａ。防水处理后制品的吸水率为２０％，软化系数为０６８。
With the high ore grade (CaSO_4·2H_2O+CaSO_4:75.63%～98.20%), simple mineralogical composition (CaSO_4·2H_2O: 69.12%～96.51%) and massive and banded ore structures, Wangjiazhuang gypsum deposit has large ore reserves. The orebodies are beded and low buried. Calcium sulfate hemihydrate has been made under the condition of 140℃ and 2 hours. The bending strength of hemihydrate is 521 MPa, compressive strength 1039 MPa. The level of white of hemihydrate is about 855% and congulation time 6～9min. The compressive strength of hollow gypsum brick is about 294 MPa. The absorption water rate of waterproof products is 20% and softened coefficient is 068.
出处
《桂林工学院学报》
1997年第1期7-10,共4页
Journal of Guilin University of Technology
基金
中国有色金属工业总公司科研项目
关键词
石膏矿床
地质特征
开发应用
gypsum ore deposit
geological characteristics
exploitage
Ningxia
Wangjiazhuang
