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Heat of hydration and time-dependent dimensional changes of mass concrete incorporating local Egyptian blended cements / Samiha Emam Abdelaziz Alharty ; Supervised Osama A. Hodhod , Mostafa Abdelmohsen Mostafa

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Samiha Emam Abdelaziz Alharty , 2017Description: 127 P. : charts , facsimiles ; 30cmOther title:
  • تأثير أنواع الاسمنت المصرية المختلفة علي حرارة الاماهة والخواص المعتمدة علي الزمن للخرسانة الكتلية [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering Summary: This study examines the influences of using different Egyptian cement types and supplementary cementitious materials (SCMs) to control the hydration heat, durability, and the time-dependent behavior developed in massive concrete. Three different sorts of cements, two different water types, and three different fly ash ratios were used. For each binder type, two concrete mixes are produced. The results show that the hydration heat decreases with increasing SCM and with using blended cements. Hydration heat was decreased to 88% for slag cement and 79% for limestone cement regarding ordinary portland cement. It was also decreased to 86%, 78%, and 74.5% in case of using 30%, 40%, and 50% fly ash substitution respectively. Also it can be concluded that the maximum shrinkage and permeability values decrease with increasing SCM and with using (CEM II-B-L) and (CEM II-A-S). The shrinkage was decreased by 29% for CEM II-A-S and 5% for CEM II-B-L with respect to CEM I. It was also decreased by 17%, 25%, and 44% in case of using 30%, 40%, and 50% fly ash replacement respectively
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.Ph.D.2017.Sa.H (Browse shelf(Opens below)) Not for loan 01010110073988000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.Ph.D.2017.Sa.H (Browse shelf(Opens below)) 73988.CD Not for loan 01020110073988000

Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

This study examines the influences of using different Egyptian cement types and supplementary cementitious materials (SCMs) to control the hydration heat, durability, and the time-dependent behavior developed in massive concrete. Three different sorts of cements, two different water types, and three different fly ash ratios were used. For each binder type, two concrete mixes are produced. The results show that the hydration heat decreases with increasing SCM and with using blended cements. Hydration heat was decreased to 88% for slag cement and 79% for limestone cement regarding ordinary portland cement. It was also decreased to 86%, 78%, and 74.5% in case of using 30%, 40%, and 50% fly ash substitution respectively. Also it can be concluded that the maximum shrinkage and permeability values decrease with increasing SCM and with using (CEM II-B-L) and (CEM II-A-S). The shrinkage was decreased by 29% for CEM II-A-S and 5% for CEM II-B-L with respect to CEM I. It was also decreased by 17%, 25%, and 44% in case of using 30%, 40%, and 50% fly ash replacement respectively

Issued also as CD

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