CAJ | 학술논문

为了快速测定混凝土强度，将微波技术应用到传统的蒸压养护工艺中，自行设计和制作了小型微波蒸压釜。通过试验得出了釜腔内温度压力大小、恒温恒压养护时间对混凝土早期强度的影响规律，进而总结出微波蒸压养护条件下混凝土快速养护制度。通过15批次（5种配合比）不同强度等级混凝土的微波蒸压养护和标准养护对比试验，建立了微波蒸压养护条件下的混凝土强度线性和非线性回归模型，模型中考虑了加速养护混凝土强度和混凝土水灰比，具有较好的相关关系。试验分析发现：运用微波技术，可以均匀、迅速地提高混凝土内部温度，减小温度应力，使混凝土1 h内获得较高（28 d强度40％～50％）、稳定的早期强度，可以作为预拌混凝土生产企业和施工现场进行强度控制和配合比调整时的依据。
위료쾌속측정혼응토강도，장미파기술응용도전통적증압양호공예중，자행설계화제작료소형미파증압부。통과시험득출료부강내온도압력대소、항온항압양호시간대혼응토조기강도적영향규률，진이총결출미파증압양호조건하혼응토쾌속양호제도。통과15비차（5충배합비）불동강도등급혼응토적미파증압양호화표준양호대비시험，건립료미파증압양호조건하적혼응토강도선성화비선성회귀모형，모형중고필료가속양호혼응토강도화혼응토수회비，구유교호적상관관계。시험분석발현：운용미파기술，가이균균、신속지제고혼응토내부온도，감소온도응력，사혼응토1 h내획득교고（28 d강도40％～50％）、은정적조기강도，가이작위예반혼응토생산기업화시공현장진행강도공제화배합비조정시적의거。
In order to estimate concrete strength quickly,microwave was applied to the conditional autoclave curing. Small microwave autoclave suitable for the microwave autoclaved were self designed and made. By experiment research,the effect laws of temperature in autoclave and constant temperature curing time on the early strength of concrete were investigated,and rapid curing system was summa-rized on the condition of microwave and autoclave. By the contrast test of microwave autoclave curing and standard curing of 15 batches of different strength grade concrete,the linear and nonlinear regression model of concrete strength determination were established with better correlativity on the condition of microwave and autoclave. Concrete strength accelerated of curing and water-cement-ratio was considered in the model. It was found that the internal temperature of concrete would be uniformly,rapidly improved by microwave,and the temperature stress would be reduced.The high and stable early strength of concrete(40~50 percent of 28 d strength)was obtained within 1 hour,which can be used as the strength controlling and the mix proportion of adjustment to the concrete premixing enterprises and construction concrete producing sites.