CAJ | 학술논문

研究了氢氧化钠和复合激发剂CSN对脱硫石膏-矿渣胶结料强度的影响以及棉花秸秆对材料强度、导热系数和表观密度的影响，并制备了石膏砌块。试验结果表明，复合激发剂CSN对胶结料强度的改善效果优于氢氧化钠，28d最高抗折强度和抗压强度分别达到6.2MPa和46.5MPa；在其中添加棉花秸秆后，随着棉花秸秆掺量的增加，试样的强度、导热系数和表观密度都不断减小。当在70%原状脱硫石膏和30%矿渣中，添加4%CSN复合激发剂和10%棉花秸秆时，其抗折和抗压强度分别达2.1MPa和9.1MPa，导热系数达0.134 W/m·K；由其制备的砌块抗折载荷为3056N，表观密度为975kg/m3。
연구료경양화납화복합격발제CSN대탈류석고-광사효결료강도적영향이급면화갈간대재료강도、도열계수화표관밀도적영향，병제비료석고체괴。시험결과표명，복합격발제CSN대효결료강도적개선효과우우경양화납，28d최고항절강도화항압강도분별체도6.2MPa화46.5MPa；재기중첨가면화갈간후，수착면화갈간참량적증가，시양적강도、도열계수화표관밀도도불단감소。당재70%원상탈류석고화30%광사중，첨가4%CSN복합격발제화10%면화갈간시，기항절화항압강도분별체2.1MPa화9.1MPa，도열계수체0.134 W/m·K；유기제비적체괴항절재하위3056N，표관밀도위975kg/m3。
The gypsum block was prepared by the original desulphurization gypsum as raw materials, a little slag, some activators and cotton straw. The influence of NaOH and compound stimulator CSN on the strength of desulphurization gyp-sum-slag system was discussed. And the effect of the cotton straw on the strength, thermal conductivity and apparent den-sity of the material was also studied. The results show that the effect of CSN on the strength of the binder is better than that of NaOH. The 28d flexural strength and compressive strength of the cementitious materials are 6.2MPa and 46.5MPa respectively. Furthermore, the strength, thermal conductivity and apparent density of the specimens decrease with increas-ing the content of cotton straw. When adding 4% CSN and 10% cotton straw to the mixture of 70% original desulphuriza-tion gypsum and 30%slag, the flexural strength and compressive strength of the specimen are 2.1MPa and 9.1MPa respec-tively, and its thermal conductivity is 0.134 W/m·K. In addition, the fracture load and the apparent density of the block prepared by using the optimum proportion are 3056N and 975 kg/m3 respectively.