纳米材料-BF砂浆力学性能研究  

RESEARCH ON THE MECHANICAL PROPERTIES OF NANOMATERIAL-BF MORTAR

作　　者：阎龙 张洪泽 王勤 李红霞 柳艳杰[1] YAN Long;ZHANG Hongze;WANG Qin;LI Hongxia;LIU Yanjie(Heilongjiang University,College of Construction Engineering,Harbin 150006,China)

机构地区：[1]黑龙江大学建筑工程学院,哈尔滨150006

出　　处：《低温建筑技术》2024年第7期70-73,共4页Low Temperature Architecture Technology

基　　金：国家级大学生创新创业训练计划项目(202310212119);黑龙江省自然科学基金项目(LH2023D022)。

摘　　要：文中以玄武岩纤维(Basalt fiber,BF)增强和纳米材料改性为着重影响因素,研究了纳米SiO_(2)、纳米CaCO_(3)单掺与纳米SiO_(2)-BF、纳米CaCO_(3)-BF复合掺入对水泥砂浆抗压、抗折强度的影响,对比了两种纳米材料对砂浆的增益效果。研究结果表明,单掺纳米SiO_(2)、纳米CaCO_(3)均可改善砂浆的力学性能,其最优掺量均为2%;对于复掺纳米材料和纤维,在0.2%BF砂浆中掺入2%的纳米SiO_(2)或纳米CaCO_(3),其抗压、抗折强度明显高于素砂浆,且优于单掺BF和纳米材料砂浆;其次,在相同掺量下,纳米SiO_(2)相较于纳米CaCO_(3)对砂浆的增益效果更佳。The effectiveness of single addition of nano SiO_(2)and nano CaCO_(3),as well as composite addition of nano SiO_(2)BF and nano CaCO_(3)BF,on the compressive and flexural strength of cement mortar were studied,with a focus on the reinforcement of basalt fiber(BF)and modification of nanomaterials.The gain effectiveness of the two nanoma⁃terials on the mortar are compared.The research results indicate that the addition of nano SiO_(2)and nano CaCO_(3)im⁃proves the mechanical properties of mortar,with an optimal dosage of 2%.For composite nanomaterials and fibers,adding 2%nano SiO_(2)or nano CaCO_(3)to 0.2%BF mortar results in significantly higher compressive and flexural strength than that of plain mortar,which is superior to single BF and nanomaterial mortar.Secondly,at the same dos⁃age,nano SiO_(2)has a better gain effectiveness on mortar compared to nano CaCO_(3).

关 键 词：纳米SIO2 纳米CACO3 玄武岩纤维 

分 类 号：TU57[建筑科学—建筑技术科学]