| LEADER |
02043nam a22001937a 4500 |
| 001 |
1587728 |
| 044 |
|
|
|b ليبيا
|
| 100 |
|
|
|9 430289
|a Al Falous, Khaled Ahmed
|e Author
|
| 245 |
|
|
|a Effect of Silica Fume Addition on Characteristics of Pozzolanic Cement Pastes Containing Burnt Clay
|
| 260 |
|
|
|b الجامعة الأسمرية الإسلامية زليتن - كليتى الآداب والعلوم
|c 2014
|
| 300 |
|
|
|a 15 - 28
|
| 336 |
|
|
|a بحوث ومقالات
|
| 520 |
|
|
|b Prepared pastes of pozzolanic ordinary Portland cement (OPC) blend containing 30% burnt clay (B.C.) admixed with 2.5 and 5% silica fume (SF) to improve the physicomechanical characteristics were made using an initial water/solid ratio of 0.30 by weight and hydrated for 1, 3, 7, 28 and 90 days. The hardened pozzolanic cement pastes were subjected to compressive strength and hydration kinetics tests. The results of DSC and XRD studies indicated the formation and later stabilization of calcium silicates hydrates (CSH) and calcium aluminosilicate hydrates (C3ASH4 and C2ASH8) as the main hydration products in addition to free calcium hydroxide (CH). Scanning electron microscopic (SEM) examination of the pozzolanic cement pastes made of OPC-.BC. mixes possesses a more denser structure than that of the neat OPC paste. Furthermore, the addition of silica fume resulted in a further densification of the microstructure of the hardened OPC-B.C.-SF pastes; this is reflected on the observed improvement in the compressive strength values at all ages of hydration.
|
| 653 |
|
|
|a أدخنة السيليكا
|a معجون الأسمنت
|a الطين المحترق
|a الاسمنت البوزولاني
|a التحليل الحراري
|
| 773 |
|
|
|4 العلوم الإنسانية ، متعددة التخصصات
|6 Humanities, Multidisciplinary
|c 017
|l 026
|m ع26
|o 1582
|s مجلة العلوم الإنسانية والتطبيقية
|t Journal of Humanities and Applied Sciences
|v 000
|
| 856 |
|
|
|u 1582-000-026-017.pdf
|
| 930 |
|
|
|d y
|p y
|
| 995 |
|
|
|a HumanIndex
|
| 999 |
|
|
|c 829323
|d 829323
|
