03442nam a2200409 4500 20260818133405.0 310798 th eng .b10329201 AIT Thesis no.ST-86-12 Kang, Ing-ren Heat of hydration of concrete containing Mae Moh fly ash Bangkok : Asian Institute of Technology, 1986 80 p. Thesis ; no. ST-86-12 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1986 A feasibility study on the use of fly ash collected from the Mae Moh Lignit e Power Plant as a pozzolana in mass concrete is conducted. Among the physical and mechanical properties investigated are the chemical composition, water requirement, pozzolanic activity index, initial and final setting times, compressive strengths, and heat of hydration. The main parameter considered in the experimental program is the percentage of fly ash replacement. All tests are conducted in accordance with ASTM standards except the test for heat of hydration which followed the British Standards Institution. Test results shows that the chemical composition and physical properties of Ma e Moh fly as h satisfied the ASTM requirements and can be classified as pozzolana class C. This is the first time that fly ash samples collected from the Mae Moh Lignite Power Plant met the specifications given by the American Society for Testing and Materials Standards. At early ages, the strength of fly ash cement mortars were lower than those of the corresponding control mortars, however , at later ages, up to 90 days, the strengths of fly ash cement mortars were substantially higher than that of the corresponding control mortar. It is recommended that fly ash can be used as replacement for cement up to 35 percent without adverse effects on the concrete. The combination of fly ash and Portland cement produced a lower heat of hydration and a consequently lower temperature rise than an equal amount of portland cement without fly ash. The rate of heat evolution of fly ash was very much slower than that of the ordinary portland cement during the early age which is considered as the critical period in mass concreting. Heat of hydration Fly ash Concrete construction Pichai Nimityongskul, Chairperson Brotton, D.M., Examination Committee Karasudhi, Pisidhi, Examination Committee Government of R. 0. C., Scholarship Donor Asian Institute of Technology. Thesis ; no. ST-86-12 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B19740 .b10329201 mnait s 240402 2 951012 m a s 0 mnait mnarc 22 40 Barcode : 30050120687115 CREATED : 2014-04-21 RECORD # : i12790084 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160012232 CREATED : 2016-07-04 RECORD # : i12926280 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 54616 54616 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ST-86-12 30050120687115 2026-08-18 13:34:05 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ST-86-12 30050160012232 2026-08-18 13:34:05 1 2026-08-18 40