CAJ | 학술논문

对石碴等质量取代40%河砂、电厂生物质燃料余灰取代部分水泥，通过压制成型的方法制备水泥基材料进行了研究，探索了在石碴掺量固定的前提下，同时掺加电厂生物质燃料余灰对水泥基材料强度、吸水率、抗冻融性能的影响规律。研究结果表明，在石碴取代40%天然河砂的前提下，水泥基材料的强度随水泥被电厂生物质燃料余灰取代量的逐渐增加而先增加后降低，吸水率则呈逐渐增大的变化趋势；在抗冻融性方面，一定掺量范围内，石碴、电厂生物质燃料余灰复掺制备的水泥基材料满足GB/T 50082-2009中D25抗冻等级指标要求，并对其机理进行了分析。
대석사등질량취대40%하사、전엄생물질연료여회취대부분수니，통과압제성형적방법제비수니기재료진행료연구，탐색료재석사참량고정적전제하，동시참가전엄생물질연료여회대수니기재료강도、흡수솔、항동융성능적영향규률。연구결과표명，재석사취대40%천연하사적전제하，수니기재료적강도수수니피전엄생물질연료여회취대량적축점증가이선증가후강저，흡수솔칙정축점증대적변화추세；재항동융성방면，일정참량범위내，석사、전엄생물질연료여회복참제비적수니기재료만족GB/T 50082-2009중D25항동등급지표요구，병대기궤리진행료분석。
According to the search of the crushed sand instead of 40%natural river sand and biomass fuels wastes in-stead of cement to prepare cement-based material by using the method of pressure molding, under the premise of fixed dosage of crushed sand, at the same time adding biomass fuels wastes, the effects on strength, water absorption and freez-ing-thaw cycle resistance of the cement-based material are explored. The results show that the strength of the cement-based material is first increases then decreases with the increase of the biomass fuels wastes dosage on the premise of crushed sand replacing 40% of the natural river sand, and the water absorption shows a trend of increase gradually changes. In a certain dosage range, the freezing-thaw cycle resistance of crushed sand and biomass fuels wastes cement-based materials can meet D25 frost resisting class indication in GB/T 50082-2009. Meanwhile, its mechanism is analyzed.