土木工程材料课程试验与创新——以水泥混凝土抗渗试验为例

Civil engineering materials experiment and innovation:taking cement concrete anti-permeability test as an example

土木工程材料课程试验是熟悉国家技术标准,验证和巩固所学理论知识,培养学生动手和创新能力的重要环节。以水泥混凝土抗渗试验为例,针对传统水泥混凝土抗渗试验过程复杂、试件密封困难、试验成功率不高、试验结果误差大等问题,在保持现有抗渗仪的试验机理基本不变的前提下,通过不断改进和总结,优化创新传统水泥混凝土抗渗试验仪及其试验操作,首次提出通过适当增大混凝土试件尺寸、增加内部预埋引压管等关键措施,直观察看渗水路径,提高抗渗试验的成功率。研究成果为土木工程材料课程及其它土木工程课程试验与创新提供了参考,值得土木工程材料课程和其它课程教学借鉴;同时将为修改和逐步完善现行规范提供技术支撑,为土木工程中抗渗结构带来社会和经济效益。

Civil engineering materials experiment is the important link to master knowledge of civil engineering materials. Taking cement concrete anti-permeability test for example, optimizing and innovating the traditional cement concrete anti-permeability instrument and the test itself, creatively puts forward the development thinking,technical route and experiment mechanism of new cement concrete anti-permeability instrument. Analysis shows that new cement concrete anti-permeability instrument and its test, under the premise of keeping anti-permeability instrument test mechanism unchanged, creatively proposes appropriate increase of concrete specimen size, preembedded press-leading tube internally, etc key measures, avoiding seal procedure of the existing anti-permeability instrument cleverly. Moreover, the subsequent comparative tests and theoretical analysis are worth looking forward to. And technical route will be also prudently carried forward. Test and development scheme cover innovation characteristics obviously. Research achievement provides important references for civil engineering materials experiment and innovation, as well as other civil engineering courses, and provides lessons for civil engineering materials teaching and other courses teaching. Simultaneously, the achievement promotes amendment and improvement in traditional codes, bringing social benefit and economic value for concrete in civil engineering antipermeability structure.