福州大学学报（自然科学版）2017，Vol.45Issue(4)：572-576,5.DOI:10.7631/issn.1000-2243.2017.04.0572
考虑碳化因素修正的福建地区混凝土超声回弹测强曲线研究
Modified regional prediction curves of concrete strength considering carbonation depth through ultrasonic-rebound combined method
摘要
Abstract
In the previous study,a regional prediction curve to predict the strength of concrete in Fujian province has been provided based on the experimental results.However,the carbonation effect was neglected.For a particular concrete component,the carbonation effect is considered to be an inevitable factor which has a great influence on the strength,as well as the measured rebound and ultrasonic values.Therefore,the ultrasonic-rebound combined method is applied to some real projects,and the carbonation depth and the core strength of the components are measured.A modified regional prediction curve is proposed by taking into account different levels of carbonation depth.The comparison results show that the modified curve has great agreement with the measured core strength.Limit error is found in the proposed modified curve and the maximum error meet the specification requirements for maximum error on the current code.关键词
混凝土/超声回弹综合法/测强曲线/碳化深度/信赖域优化算法Key words
concrete/ultrasonic-rebound combined method/prediction curve/carbonation depth/trust-region method分类
建筑与水利引用本文复制引用
盛海洋..考虑碳化因素修正的福建地区混凝土超声回弹测强曲线研究[J].福州大学学报（自然科学版）,2017,45(4):572-576,5.基金项目
国家自然科学基金资助项目(51578159) （51578159）
福建省交通运输厅交通运输科技发展重点项目(201209) （201209）
福建船政交通职业学院科技服务团队项目(闽交院科2016-2) （闽交院科2016-2）
