Browsing Civil & Architectural Engineering by Author "AbuTaqa, Ala"
Now showing items 1-7 of 7
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A Comparison between Natural Pozzolana and Fly Ash Replacements on the Mechanical Properties of Concrete
Aburumman, Mervat O.; Al-diseet, Malak M.; MohsenMohamed O.; Abdel-Jaber, Mu'tasim; Naji, Khalid Kamal A A; Abu Taqa, Ala... more authors ... less authors ( Qatar University Press , 2023 , Conference Paper)This study investigates the effect of Natural Pozzolana (NP) and Fly Ash (FA) substitutes on concrete's mechanical and microstructural properties. Mixes containing 10 - 50 % cement substitute ratios were prepared and tested ... -
Carbon nanotube effect on the ductility, flexural strength, and permeability of concrete
Mohsen, Mohamed O.; Al Ansari, Mohamed S.; Taha, Ramzi; Al Nuaim, Nasser; Abu Taqa, Ala ( Hindawi Limited , 2019 , Article)Recently, remarkable types of carbon nanofilaments called carbon nanotubes (CNTs) have raised the interest of many concrete and cementitious composite researchers due to their significant mechanical, electrical, thermal, ... -
Optimum carbon nanotubes' content for improving flexural and compressive strength of cement paste
Mohsen, Mohamed O.; Taha, Ramzi; Abu Taqa, Ala; Shaat, Ahmed ( Elsevier Ltd , 2017 , Article)This study investigated the effect of multi-walled carbon nanotubes’ (MWCNTs) weight fraction on the setting time and mechanical properties of cementitious composites. Different cement mixes containing CNT-to-cement weight ... -
Performance of modified self-healing concrete with calcium nitrate microencapsulation
Al-Ansari, Mohammed; Abu-Taqa, Ala G.; Hassan, Marwa M.; Senouci, Ahmed; Milla, Jose ( Elsevier Ltd , 2017 , Article)This study investigates the strength reduction associated with incorporating calcium nitrate microcapsules in concrete. It also proposes modifications to the calcium nitrate micro encapsulation procedure to minimize the ... -
Proposed formulas for estimating splitting tensile, shear and flexural strengths, and long term deflection assessment of self-compacting concrete elements
Al-Ansari, Mohammed S.; Abu Taqa, Ala G.; Senouci, Ahmed B.; Eldin, Neil N.; Helal, Mohamed; Asiado, Cesar... more authors ... less authors ( American Scientific Publishers , 2017 , Article)This paper investigated the splitting tensile and shear strengths and the modulus of rupture of Self Compacting Concrete (SCC) elements with fly ash, micro silica and polycarboxylate ether superplasticizer for various ... -
Significance of GOs, GNPs and CNTs' Nanomaterials on the Mechanical Properties of Cement
Al Diseet, Malak; Abu Rumman, Mervat; Abdel-Jaber, Mu'tasim; Taha, Ramzi; Al Ansari, Mohamed; AbuTaqa, Ala; Mohsen, Mohamed... more authors ... less authors ( Qatar University Press , 2023 , Conference Paper)This study reports the statistical significance of using Graphene Oxides (GOs), Graphene Nanoplatelets (GNPs) and Carbon Nanotubes (CNTs) on the mechanical properties of cement paste. Samples containing several nanoparticles' ... -
Synthesis of Calcium Nitrate Self-Healing Microcapsules Using Aerosol OT Hexane Solution for Cementitious Materials
Abu Taqa, Ala; Suleiman, Ghassan; Senouci, Ahmed; Mohsen, Mohamed O. ( Qatar University Press , 2023 , Conference Paper)Calcium nitrate synthesis of in urea-formaldehyde shell has recently been used to produce self-healing microcapsules for construction applications. The original synthesis was based on water-in-oil emulsion with sulfonic ...