The study area is located in the northwest of Junggar basin which was in the relaxation stage of foreland basin accompanied by momentary extend volcanic activities when the Fengcheng Formation developed in early
Salt attack performance of magnesium oxychloride cement(MOC) in brine was investigated from the viewpoints of strength development and strength coefficient. Microstructure was studied using quantitative X-ray diffract...Salt attack performance of magnesium oxychloride cement(MOC) in brine was investigated from the viewpoints of strength development and strength coefficient. Microstructure was studied using quantitative X-ray diffraction(QXRD), thermogravimetry(TG) and scanning electron microscopy(SEM). The results show that MOC mortars have outstanding salt attack performance after aging brine and raw brine immersion. The salt attack coefficients of MOC mortars are higher than 0.8, which is qualified for application in saline soil and salt lake area. The reason is that salt brine solution enters into the voids of MOC and plays a role of toughening and strengthening in the MOC.展开更多
基金supported by project < Reservoir features of Fengcheng formation around Hashan area > granted by the western center of Shengli Oilfield , Sinopec Group
文摘The study area is located in the northwest of Junggar basin which was in the relaxation stage of foreland basin accompanied by momentary extend volcanic activities when the Fengcheng Formation developed in early
基金Funded by the Special Project Major Project for the Transformation of Scientific and Technological Achievements of Qinghai Province(Nos.2019-GX-165 and 2018-NN-152)Youth Innovation Promotion Association CAS(Nos.2019423 and 2018467)the National Natural Science Foundation of China(No.U1507120).
文摘Salt attack performance of magnesium oxychloride cement(MOC) in brine was investigated from the viewpoints of strength development and strength coefficient. Microstructure was studied using quantitative X-ray diffraction(QXRD), thermogravimetry(TG) and scanning electron microscopy(SEM). The results show that MOC mortars have outstanding salt attack performance after aging brine and raw brine immersion. The salt attack coefficients of MOC mortars are higher than 0.8, which is qualified for application in saline soil and salt lake area. The reason is that salt brine solution enters into the voids of MOC and plays a role of toughening and strengthening in the MOC.
