نتایج جستجو برای: saxaul tree ash

تعداد نتایج: 192674  

2015
Raja Krishnasamy

Application of bio-fuel by-product sugarcane bagasse ash SBA as. Including sugarcane bagasse ash SBA13, recycled paper mill waste4.as bagassios. In this paper, Bagasse ash can be utilized by replacing it with fly ash and lime in fly ash bricks. Trial bricks of size 230x100x75 mm were tested.bagasse ash SCBA, several trials were conducted to define optimum burning time and temperatures. SCBA use...

Journal: :Environmental entomology 2008
Andrea C Anulewicz Deborah G McCullough David L Cappaert Therese M Poland

Emerald ash borer (Agrilus planipennis Fairmaire) (Coleoptera: Buprestidae), an invasive phloem-feeding pest, was identified as the cause of widespread ash (Fraxinus) mortality in southeast Michigan and Windsor, Ontario, Canada, in 2002. A. planipennis reportedly colonizes other genera in its native range in Asia, including Ulmus L., Juglans L., and Pterocarya Kunth. Attacks on nonash species h...

2016
Andrea L. Harper Lea Vig McKinney Lene Rostgaard Nielsen Lenka Havlickova Yi Li Martin Trick Fiona Fraser Lihong Wang Alison Fellgett Elizabeth S. A. Sollars Sophie H. Janacek J. Allan Downie Richard. J. A. Buggs Erik Dahl Kjær Ian Bancroft

Tree disease epidemics are a global problem, impacting food security, biodiversity and national economies. The potential for conservation and breeding in trees is hampered by complex genomes and long lifecycles, with most species lacking genomic resources. The European Ash tree Fraxinus excelsior is being devastated by the fungal pathogen Hymenoscyphus fraxineus, which causes ash dieback diseas...

Journal: :Waste management 2009
D G Snelson J M Kinuthia P A Davies S-R Chang

An investigation was carried out to establish the physical, mechanical and chemical characteristics of a non-standard (unprocessed) pulverised fuel ash (PFA) and waste tyres from a former landfill site at the Power Station Hill near Church Village, South Wales, United Kingdom. Investigations are on-going to establish the suitability of the fly ash and/or tyres in road construction (embankment a...

2014
P. R. Wankhede

This paper presents an Effect of Fly Ash on Properties of Concrete. In the present study. Use of fly ash in concrete imparts several environmental benefits and thus it is ecofriendly. It saves the cement requirement for the same strength thus saving of raw materials such as limestone, coal etc required for manufacture of cement. Fly ash is pozzolanic material & it improving the properties of co...

2017
Grzegorz Ludwik Golewski

The paper presents the results of tests on the effect of the low calcium fly ash (LCFA) addition, in the amounts of: 0% (LCFA-00), 20% (LCFA-20) and 30% (LCFA-30) by weight of cement, on fracture processes in structural concretes. In the course of the experiments, compressive strength of concrete and fracture toughness for: I (tensile), II (in-plane shear) and III (anti-plane shear) models of c...

Journal: :Journal of environmental management 2005
N Kantiranis A Filippidis A Georgakopoulos

Fly ash samples from the five steam electric power stations of the Lignite Center of Western Macedonia were used in this study. They consisted mainly of anhydrite, lime, quartz and amorphous material as well as feldspars, calcite, micas + clays, portlandite and gehlenite which were all present in minor amounts. Anhydrite, lime and portlandite in the fly ash samples diminished upon treatment wit...

2016
W. - H. Wang Y. - F. Meng D. - Z. Wang

Effects of rice husk ash (RHA) on the strength and temperature resistance of concrete were investigated. Different amounts of cement in concrete were replaced by RHA and fly ash (FA), used as mineral admixtures, under the condition of a constant binder content. The compressive strength and temperature resistance were tested at different temperatures. The results show that mixing concrete with t...

2016
Pavel Rovnaník Kristýna Šafránková

Geopolymers are generally appreciated for their good resistance against high temperatures. This paper compares the influence of thermal treatment with temperatures ranging from 200 to 1200 °C on the mechanical properties and microstructure of geopolymers based on two different aluminosilicate precursors, metakaolin and fly ash. Moreover, the paper is also aimed at characterizing the effect of c...

2011
Aires Camões Rui Miguel Ferreira J. Barroso de Aguiar Saíd Jalali

High-performance concrete (HPC) is usually produced using high quality materials. These high quality constituents drastically increase the initial cost of HPC, hence hindering its more widespread use. Therefore, the main goal of this research project was to produce a low cost enhanced performance concrete or even a low cost HPC, using low quality fly ash and locally available crushed aggregates...

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