03600cas a2200409 a 4500 20260818112822.0 110908s1981 th uu|m rtt 0| a1eng d .b10261618 AIT Thesis no. AE-81-25 Maheshwari, Basanti Lal Evaluation of some low cost tank sealing techniques for seepage control Bangkok : Asian Institute of Technology, 1981 57 p. Thesis ; no. AE-81-25 A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1981 The objective of this study was to evaluate the suitability of some potential low cost tank sealing techniques for seepage control in the laboratory and field. The whole experiment was conducted at ICRISAT, Patancheru, India in Alfisol and Vertisol areas. There were three major treatments, viz., use of soil dispersant (NA2co3), soil cement lining and improvement of soil particle gradation, The use of soil dispersant and the improvement of s oil particle gradation were first tested in the laboratory in a specially designed permeameter. Some of the promising treatments found from the laboratory and the soil cement linin~ were tested under field conditions in small experimental tanks (about 1.3 m capacity). The soil cement lining was observed to be the most effective lining for seepage control from the various treatments tried (seepage rate 8 l/m2/day), In Alfisols, next to soil cement was the lining with red soil +black soil (1:2 ratio by weight). The maximum reduction in seepage in Vertisols was 33% (with lining of black soil+ red soil in 2:1 ratio) when compared with control. It was also found that the problem of cracking of soil cement lining, when exposed to sun, was solved by constructing the lining in blocks (30 cm x 30 cm) and providing a 10 mm space between blocks although asphalt did not satisfactorily remain in the space between blocks. Preliminary cost estimates showed all the linings tried in Alfisols are economically justified when a yield increase due to one 50 mm supplementary irrigation to sorghum and maize at the critical stage of moisture stress and investment made in lining was considered. However, it was not so for any of the lining tried in the Vertisol area. Tanks Linings Apichart Anukularmphai, Chairperson Christoph, Ing. Fried, Examination Committee Ohta, Hideki, Examination Committee Belgian Government, Scholarship Donor Asian Institute of Technology. Thesis ; no. AE-81-25 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B21538 .b10261618 mnait x 241218 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050000021831 CREATED : 1994-05-17 RECORD # : i10321743 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003029278 CREATED : 1994-05-17 RECORD # : i10321755 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120302061 CREATED : 2016-05-26 RECORD # : i12993724 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 41239 41239 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-81-25 30050000021831 2026-08-18 11:28:22 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. AE-81-25 30050003029278 2026-08-18 11:28:22 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. AE-81-25 30050120302061 2026-08-18 11:28:22 2026-08-18 40