CAJ | 학술논문

为解决目前粉煤灰单因子评价方法不能全面综合反映粉煤灰品质的弊端，采用主成分分析方法，建立用于评价大掺量粉煤灰混凝土中粉煤灰品质性能的综合评价法。研究结果表明：利用R软件强大的统计功能，运用主成分分析原理，可以将粉煤灰样本的大量性能表征指标构造成少数的几个变量，并通过计算各样本的主成分值，以各主成分的贡献率为权重值，得出各粉煤灰样本的综合得分，通过最终的主成分综合得分来划分粉煤灰质量等级，实现对粉煤灰品质进行快捷、客观的综合评价。
위해결목전분매회단인자평개방법불능전면종합반영분매회품질적폐단，채용주성분분석방법，건립용우평개대참량분매회혼응토중분매회품질성능적종합평개법。연구결과표명：이용R연건강대적통계공능，운용주성분분석원리，가이장분매회양본적대량성능표정지표구조성소수적궤개변량，병통과계산각양본적주성분치，이각주성분적공헌솔위권중치，득출각분매회양본적종합득분，통과최종적주성분종합득분래화분분매회질량등급，실현대분매회품질진행쾌첩、객관적종합평개。
In order to overcome the disadvantage of single-factor evaluation method of fly ash that it is not able to comprehensively reflect the quality of fly ash, the study adopted the principal component analysis method to establish a comprehensive way of evaluating the quality and the performance of fly ash in the concrete with high fly ash content. The results show that by utilizing the powerful statistical function of software-R and the principal component analysis theory, a fewer variables can be derived from the vast property characterization indexes of fly ash samples, comprehensive scores of fly ash samples were obtained by calculation of the principal component value and the principal component contribution that as weighted value. Fly ash was graded by the comprehensive score of principal component, by which the quick and objective comprehensive evaluation of fly ash quality could be realized.