无机轻集料保温砂浆抗冻性能试验方法探讨

Test Methods of Frost Resistance of Inorganic Lightweight Aggregate Insulation Mortar

通过比对试验研究,分析讨论了采用JGJ70-1990《建筑砂浆基本性能试验方法》及JGJ/T70-2009《建筑砂浆基本性能试验方法标准》对评价无机轻集料保温砂浆抗冻性能的适用性,探讨了该方法不能客观反映轻质无机保温砂浆抗冻性的主要原因,并提出浙江省工程建设标准DB33/T1054-2008《无机轻集料保温砂浆及系统技术规程》的试验方法能较真实地反映材料的抗冻性能。

Through the comparison test,the applicability to evaluate the frost resistance of inorganic lightweight aggregate insulation mortar with the basic performance test methods of mortar JGJ70-1990 and JGJ/T70-2009 is discussed.The main reason of which the method cannot well reflect the frost resistance of inorganic lightweight aggregate insulation mortar is also expounded.The test method presented in Zhejiang Province construction standards,inorganic lightweight aggregate insulation mortar and technical regulation（DB33/T1054-2008）,can reflect the true material frost resistance to a better extent.