不同湿度水泥基材料的氧气扩散系数测定装置  

Test device of oxygen diffusivity determination for cement-based materials with different humidity

作　　者：刘承斌[1] 付传清[2] 周露泉 金南国[1] LIU Chengbin;FU Chuanqing;ZHOU Luquan;JIN Nanguo(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;College of Civil Engineering and Architecture,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江大学建筑工程学院,浙江杭州310058 [2]浙江工业大学建筑工程学院,浙江杭州300014

出　　处：《实验室科学》2022年第3期21-24,共4页Laboratory Science

基　　金：2016年度国家自然科学基金(项目编号:51678529)。

摘　　要：提出了一种针对不同湿度条件的水泥基材料氧气扩散系数测试方法和试验装置。该装置主要包括供气系统、试件、左右气体腔室、湿度控制系统和传感测试系统。本装置的氧气扩散驱动力基于氧气浓度梯度,可以真正实现不同环境模拟条件下的氧气扩散系数测定。实际应用结果表明:根据预设环境条件,该装置可以有效实现待测试件内部相对湿度的调节,试验过程中参数稳定,测试方法简单,数据准确可靠,可以满足科学研究和工程测试的实际需要。A test method and device of oxygen diffusivity coefficient determination in cement-based materials was presented corresponding to the different humidity conditions.This device mainly includes gas supply system,specimen,left and right gas chamber,humidity control system and sensing test system.The driving force of oxygen diffusion in this device is based on oxygen concentration gradient,which can really realize the measurement of oxygen diffusion coefficient under different environmental simulation conditions.The practical application results show that this device,according to preset environments conditions,can effectively realize the adjustment of the internal relative humidity of the specimen to be tested.This system has stable parameter,simple test procedure as well as accurate and reliable data,which thus can fulfill the practical needs of scientific research and engineering testing.

关 键 词：湿度 水泥基材料 氧气扩散 测试方法 试验装置 

分 类 号：TU528-33[建筑科学—建筑技术科学]