| Summary: | 碩士 === 國立高雄第一科技大學 === 營建工程所 === 96 === This paper attempts to interpret the quality of cementitious material by inference parameters through surface contact detection, because durability of the degradation phenomena is always considered to be related to the infiltration of degradation factors. Besides, since the surface is the first resistance line for invasive material, if non-destructive testing mode of testing parameters can be established by inference surface pore characteristics, with the help of taking core for rapid chloride ion migration test, one rigorous assessment system for cementitious material is proposed in this research.
In order to find material factors and curing conditions on the test parameters of research interest, by adopting orthogonal experimental design technique, test data by inference model of ultrasonic pulse velocity and fluid acts of contact detection parameters can be utilized for inferring surface pore characteristics. And, test results are summarized as follows:
(1)There is no clear evidence to relate the pore distribution obtained by mercury intrusion porosimetry with the inferred surface pore characteristics.
(2)The most significant factor for influencing surface pore characteristics is concluded as the curing conditions.
(3)One quality classification system by combing surface pore characteristics with rapid chloride migration test was proposed in this research, which grades were defined as excellent, fair and poor.
(4)In order to reduce the measurement of variability of non-destructive testing, there is need to take the average of measured data of non-destructive testing in multiple times as well as to adopt automation measurement for recording and analyzing the measured parameters.
(5)For the parameters used in the established model, it is suggested that automatic simulation program for achieving simple and rapid assessment should be developed.
|
|---|
