03250cas a2200409 a 4500 20260817163012.0 090421s1979 th uu|m rtt 0| a1eng d .b10089743 AIT Thesis no.1018 Kittipong Suppatkul Applications of CBR and plate bearings tests in the Bangkok area with respect to pavement design Bangkok : Asian Institute of Technology, 1979 250 p. Thesis ; no. 1018 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand Thesis (M.Eng.) - Asian Institute of Technology, 1979 California Bearing Ratio (CBR) and plate bearing tests (12" and 30" m. plate) were conducted in a shallow field test pit on Bangkok Clay and in a 2 deep concrete test pit in which a pavement structure consisting of compacted clay, lateritic soil and crushed rock aggregate had been built. Extensive CBR testing was also performed in the laboratory on unoaked and soaked samples of clay, lateritic soil and crushed rock aggregate compacted at various efforts. CBR-values obtained in the concrete test pit were somewhat lower than laboratory values for all three materials in the unoaked condition, where as those measured in the field test pit were slightly higher. Design CBR values were selected as 2%, 25% and 70% for the clay, lateritic soil and crushed rock, respectively. The coefficient of subgrade reaction, k, from 12" plate tests was about twice the value of the 3011 plate and the ratio of k-values between clay, lateritic soil and crushed rock was about 6:3 :1. In--situ soaking of clay greatly reduced the k-value. Results from repetitive plate bearing tests indicated a considerable decrease of allowable pressure with increasing number of load repetitions. Finally, the results were used for estimating the layer thickness in a rigid and flexible pavement using three different design procedures, Pavements Design and construction Brenner, R.P., Chairperson Balasubramaniam, A.S., Examination Committee Holmberg, Soren, Examination Committee The Royal Netherlands Government, Scholarship Donor Asian Institute of Technology. Thesis ; no. 1018 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B22355 .b10089743 mnait x 250627 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050120862320 CREATED : 1994-05-16 RECORD # : i10096103 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003020194 CREATED : 1994-05-16 RECORD # : i10096115 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160089024 CREATED : 2016-04-29 RECORD # : i1296380x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 6977 6977 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no.1018 30050120862320 2026-08-17 16:30:12 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no.1018 30050003020194 2026-08-17 16:30:12 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.1018 30050160089024 2026-08-17 16:30:12 2026-08-17 40