03091nas|a2200397 i 4500 20260818090856.0 030815s2003 th uzm rtt 00| a1eng d .b11893928 AIT Thesis no.ST-03-07 Tanabodee Harithaithaworn Development of microwave curing technique for strength prediction of concrete Bangkok : Asian Institute of Technology, 2003 105 leaves Thesis ; no. ST-03-07 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering Thesis (M.Eng.) - Asian Institute of Technology, 2003 The accuracy of the previous predicted formula is verified with (1) concrete cured by any other brand of commercial microwave oven instead of Goldstar MS-4025 microwave oven which was used in the previous work and (2) ready-mixed concrete obtained from six major companies in Thailand instead of mix-in-lab concrete which was studied in the previous work. The related equipment for use in field is conceptually studied and designed. The samples of concrete mix proportion according to ACI standard mix design without admixtures and with accelerators, retarders and superplasticizers are used to verify the of the previous predicted formula with two new brands of commercial microwave oven. The average and maximum percentage of error in both cases of using any other brand of commercial microwave oven are 5.80 and ±10.31 % respectively in first case and 6.39 and ±11.24% respectively in second case. Moreover, the guideline to determine the optimal microwave power output has been developed for any other brand of commercial microwave oven. The samples of ready-mixed concrete are tested by curing with Goldstar MS-4025 microwave oven. The optimal process, which was obtained in previous work, is used. The previous predicted formula cannot be used to predict 28-day compressive strength of ready-mixed concrete from only one company with the maximum percentage of error within ±22.74%. Concrete Mixing Microwave heating Pichai Nimityongskul, Chairperson Thanakorn Pheeraphan, Co-Chairperson Kim, Kidu, Examination Committee AIT Partial Scholarship, Scholarship donor Asian Institute of Technology. Thesis ; no. ST-03-07 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B08883 .b11893928 mnait u 240404 0 030815 m a u 0 mnait mnarc 22 40 Barcode : 30050120745608 CREATED : 2014-04-29 RECORD # : i12793681 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160067533 CREATED : 2016-04-19 RECORD # : i12937770 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 29403 29403 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ST-03-07 30050120745608 2026-08-18 09:08:56 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ST-03-07 30050160067533 2026-08-18 09:08:56 1 2026-08-18 40