| 000 | 02568cam a2200337 a 4500 | ||
|---|---|---|---|
| 003 | EG-GiCUC | ||
| 005 | 20250223031525.0 | ||
| 008 | 160626s2016 ua d f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.16.03.M.Sc.2016.Ha.E | ||
| 100 | 0 | _aHatem Salah Ibrahim Musa | |
| 245 | 1 | 0 |
_aEffect of organic admixtures on the properties of the fresh and hardened concrete as a model for civil engineering applications in Africa / _cHatem Salah Ibrahim Musa ; Supervised Hanaa Youssef Ghorab , Abbas Mohamed Sharaky |
| 246 | 1 | 5 | _aتأثير الإضافات على الخرسانة الطازجة و المتصلدة كنموذج لتطبيقات الهندسة المدنية فى أفريقيا |
| 260 |
_aCairo : _bHatem Salah Ibrahim Musa , _c2016 |
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| 300 |
_a108 P. : _bcharts ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Institute of African Research and Studies - Department of Natural Resources | ||
| 520 | _aThree commercial polynaphthalene sulfonate superplasticizers were used to study their effect on the slump behavior of cement pastes made of CEM I 42.5 N, sulfate resisting and portland limestone (CEM II / B - L) cements as well as on the respective concretes. The admixtures had similar characteristics with respect to their finger print infrared spectrograhs, the HPLC chromatographs, the differential thermogram DTA and the physical properties, The initial slump and the slump loss of the paste and concrete were measured by means of the minislump test and according to ASTM C - 143 - 08 respectively. The results obtained confirm the increased flowability of the pastes made of sulfate resisting and portland limestone cements compared to that of CEM I reported in the literature. The amount of C3A in the cement and the surface nature of limestone are factors determining the absorption process of the admixture on the cement hydrates and the consequent flowability. The fluidity start and slump retention capacities of concrete are found to follow the same trend of the pastes which suggests that the minislump test on pastes can be a successful indicator for the slump behavior of concrete | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aCement | |
| 653 | 4 | _aConcrete | |
| 653 | 4 | _aSuperplasticizer | |
| 700 | 0 |
_aAbbas Mohamed Sharaky , _eSupervisor |
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| 700 | 0 |
_aHanaa Youssef Ghorab , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
| 905 |
_aNazla _eRevisor |
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| 905 |
_aSamia _eCataloger |
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| 942 |
_2ddc _cTH |
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| 999 |
_c57032 _d57032 |
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