低碳环保与节能减排70节能ENERGYCONSERVATIONNO.102023绝热散料吸水性测试方法研究李建伟1，2潘文杰1张璐1单雪强1刘俊霞2张茂亮1，2*（1.河南建筑材料研究设计院有限责任公司，河南郑州450052；2.中原工学院，河南郑州450000）摘要：设计一种吸水性测试方法及配套装置，并对膨胀珍珠岩、膨胀蛭石、玻化微珠、轻质陶粒及憎水改性膨胀珍珠岩等绝热散料进行吸水性测试，提出一些吸水性试验具体操作要点及建议。结果表明：绝热散料的粒径与其吸水率成反比；28d吸水率比5min吸水率的测试结果偏差及变异系数更小，结果更稳定；5min吸水率可以快速定性检测绝热散料是否经过憎水处理，28d吸水率可以用来表征绝热散料的长期吸水性。关键词：绝热散料；吸水性；测试方法中图分类号：TU55文献标志码：A文章编号：1004-7948（2023）10-0070-03doi：10.3969/j.issn.1004-7948.2023.10.020ResearchonwaterabsorptiontestmethodofthermalinsulationbulkmaterialLIJian-weiPANWen-jieZHANGLuSHANXue-qiangLIUJun-xiaZHANGMao-liangAbstract：Awaterabsorptiontestmethodandsupportingequipmentweredesigned.Thewaterabsorptiontestwasconductedonthermalinsulationbulkmaterialssuchasexpandedperlite,expandedvermiculite,vitrifiedmicrobeads,lightweightceramicparticles,andhydrophobicmodifiedexpandedperlite.Specificoperationalguidelinesandrecommendationsforthewaterabsorptiontestwereprovided.Theresultsdemonstratethattheparticlesizeofthermalinsulationbulkmaterialsisinverselyproportionaltotheirwaterabsorptionrate.Thedeviationandcoefficientofvariationofwaterabsorptionat28daysweresmallerthanthatat5minutes,indicatingmorestableresults.Thewaterabsorptionrateat5minutescanquicklyandqualitativelydetectwhethertheinsulationbulkmaterialhasundergonehydrophobictreatment,whilethewaterabsorptionrateat28dayscanbeusedtocharacterizethelong-termwaterabsorptionoftheinsulationbulkmaterial.Keywords:thermalinsulationbulkmaterial;waterabsorption;testmethod引言随着我国建筑节能政策的不断推进和绝热材料技术水平的不断提升，建筑领域对膨胀珍珠岩、玻化微珠、膨胀蛭石、轻质陶粒等绝热散料的需求日益增加[1-4]。目前，国内绝热散料及其制品的需求量仍有一定的上升空间，尤其是砂浆轻集料、设备绝热填料、保温隔热制品、助滤...
