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THE INCORPORATIONS OF WOOD ASH AND PALM FIBERS FOR THE PRODUCTION OF HIGH PERFORMANCE MORTAR
استخدام رماد فحم الخشب والياف النخيل لإنتاج مونة السمنت عالية الأداء

Author: EetharThanonDawood د. ايثار ذنون داؤد
Journal: AL-TAQANI مجلة التقني ISSN: 1818653X Year: 2016 Volume: 29 Issue: 1 Pages: E34-E46
Publisher: Foundation of technical education هيئة التعليم التقني

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Abstract

This paper presents two stages: The first stage discusses the use of wood ash for the production of High Performance Mortar(HPM). The different weight percentages used for wood ash are:6,8,10,12, 14 and 16% as partial replacement of cement. Thus, the experimental tests includeddensity, compressive strength and flexuralstrength. The results illustratethat the wood ash decreases the density of HPM. Besides, the inclusion of10% ofwood ash as a partial replacement of cementgives the best compressive and flexural strengths of the HPM. Whereas, the second stage shows the use of optimum percentage of wood ash (10%) with different volumetric percentages of palm fibers (0.3, 0.6, 0.9, 1.2%) which are incorporated in HPM. The experimental tests included density, compressive strength , flexural strength and toughness performance according to ASTM C1018 and ASTM C1609. The results indicated that the use of palm fibers would reduce the density of HPM. The use of 0.6% of palm fibers with 10% of wood ash increase the compressive and flexural strengths by about 15 and 30%, respectively. Besides, the use of 0.9% of palm fibers enhances significantly the flexural toughness of HPM

هذه الدراسة تتضمن مرحلتين : تهدف المرحلة الاولىإلىاستخدام رماد فحم الخشب لإنتاج مونة السمنت عالية الأداء. تمت هذه الدراسة باستخدام نسب وزنية مختلفة منرماد الفحم حيث كانت النسب كالاتي: 6%, 8%, 10%, 12%, 14%, 16%. تم فحص نماذج مونة السمنتلكل من الكثافة ومقاومة الانضغاط ومقاومة الانحناء. النتائج بينت ان استخدام رماد الفحم يعمل على تقليل الكثافة. بالإضافة إلى ذلك فان استبدال 10% من رماد الفحم أعطت أفضل أداءمونة السمنت وخاصة بالنسبة لمقاومتي الانضغاط والانحناء.بينما تضمنت المرحلة الثانية استخدام النسبة المثالية من رماد الفحم ( 10% ) مع نسب مئوية مختلفة من الياف النخيل وهي 0.3 و 0.6 و0.9 و1.2)مع مونة الاسمنت عالية الاداء. الفحوصات تضمنت الكثافة ومقاومة الانضغاط والانحناء واداء المتانة حسب المواصفات الأمريكية (ASTM C1018 and ASTM C1609).


Article
Biosorption of Chromium ions from Aqueous Solutions by using Date Palm Fibers

Author: Alaa K. Mohammed1, Alaa A. Abdulhassan2, Warqaa Y. Al-Meshhdany2
Journal: Iraqi Journal of Biotechnology المجلة العراقية للتقانات الحياتية ISSN: 18154794 Year: 2017 Volume: 16 Issue: 4 Pages: 8-14
Publisher: Baghdad University جامعة بغداد

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Abstract

This research describes the removal of Cr (VI) ions by adsorption on date palm fibers. This plant is locally available in Iraq and nearby countries. Date palm fibers have porous structure as well as rich in carboxyl, hydroxyl, and carbonyl groups which cause the adsorption process. The biosorption of Cr (VI) ions from aqueous solutions by date palm fibers was studied in a batch experiments as a function of, contact time, metal ion concentration, mass of adsorbent and shaking speed. The adsorption data fit well with Langmuir adsorption isotherm model rather than Freundlich model. The adsorption percent was found to be about 93% when the operating parameters are: mixing speed 250 rpm, particle size 100-200 µm, initial chromium ions concentration of 100 ppm and adsorbent concentration 20 g/L. Two isotherm models were tested; Langmuir and Freundlich. Experimental data was found fitted well by Langmuir equilibrium isotherm model.


Article
Determination of Some Mechanical Properties of Unsaturated Polyester Reinforced with Glass Fiber and Plam Fiber

Author: Wafaa AbedAlkazem Zkaer
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 16 Pages: 3313-3319
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this work a composite materials is prepared containing matrix of polymer (unsaturated polyester) reinforced with different reinforcing materials (glass fiber + plate fiber) in different values of volume fraction %. All samples for to mechanical tests were prepared by hand layup process. The mechanical tests can be classified into: bending, tensile strength, tensile strength at break, elongation at break and hardness. The study of mechanical test shows that the mechanical properties increase with the increase in volume fraction.


Article
Synthesis and Characterization of Date Palm Fiber-Based Bio-Char and Activated Carbon and its Utilization for Environmental Remediation

Authors: Mohammad Ibrahim Nasir --- Md. Zakir Hossain --- P. A. Charpentier
Journal: Journal of Petroleum Research & Studies مجلة البحوث والدراسات النفطية ISSN: 22205381 Year: 2018 Issue: 19 Pages: E208-E221
Publisher: Ministry of Oil وزارة النفط

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Abstract

Natural agricultural products have the potential to be a substitute for synthetic polymers absorbents in environmental remediation and spill cleanup and recovery. One of these natural by-products which is available in many regions of the world is Date Palm Fibers (DPF). DPF (also known as surface fibers) is a natural sorbent that exhibits good sorption characteristics. In an attempt to valorize this abundant, low cost byproduct, we have investigated the micro porosity of this raw material by carrying out two procedures. First, hydrothermal pyrolysis using a scalable reactor with only water as solvent at high temperature (480 °C) under dry nitrogen atmosphere. Biochar yield was found varying from 30.5 to 33.6% (32%), with little bio-oil. Then the resultant biochar was physically activated with KOH and the mixture heated to 750oC (0.5oC/min) and kept at 750°C for 2 hours under Argon flow in a tubular furnace to produce activated carbon. Second, the resulting biochar and activated carbons were then characterized by Particle Analyzer to measure their surface area, pore volume and pore diameter. For biochar, surface area : 1.1374 m²/g, pore volume 0.001883 cm³/g, pore diameter 1355.874 Å and for activated biochar (activated carbon), surface area : 1220.2755 m²/g, pore volume: 0.062068 cm³/g, pore diameter: 19.0116 Å were determined by particle characterization analyzer. Scanning Electron Microscopy (SEM), and X-ray Diffraction (XRD) was also used for other analysis .The oil sorption behavior of the raw DPF, biochar and activated biochar were examined with motor oil. The Oil Sorption Capacity (OSC) of raw DPF, biochar and activated biochar were tested with the oil as oil alone and an oil over water surface and the value calculated gravimetrically. The maximum OSC values of the sorbents were in the order of: DPF

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