【摘要】 研究利用生物质废料-锯末烧制高抗冻青砖的可行性，以锯末掺量为变量，采用实际生产工艺进行试样制备，利用物理力学性能测试和压汞法等手段，研究了锯末掺量对青砖各项性能的影响。结果表明：随着锯末掺量的提高，青砖的吸水率逐步增加，而抗压强度随之下降，孔隙率和平均孔径也随着锯末掺量提高而提高，当需要满足寒冷地区的抗冻性要求时，锯末掺量需控制在8%以内，当需要满足严寒地区的抗冻性要求时，锯末掺量需要控制在6%之内。更多还原

【Abstract】 In this paper, the feasibility of using biomass waste-sawdust to burn high-freeze-resistant blue bricks is studied. Taking the amount of sawdust as a variable, the sample is prepared by the actual production process,and the physical and mechanical properties test and mercury intrusion method are used to study the method. Effects of sawdust content on various properties of blue bricks. The results show that with the increase of sawdust content, the water absorption rate of blue bricks increases gradually, while the compressive strength decreases,and the porosity and average pore diameter also increase with the increase of sawdust content. When the frost resistance is required, the amount of sawdust needs to be controlled within 8%. When it is necessary to meet the frost resistance requirements in severe cold regions, the amount of sawdust needs to be controlled within 6%.更多还原