نتایج جستجو برای: bituminous coating

تعداد نتایج: 38344  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی پلیمر 1387

پوشش های پایه قیری اولین پوشش های محافظتی مورد استفاده توسط بشر برای محافظت و جلوگیری از خوردگی بوده اند و امروزه نیز با توجه به قیمت پایین و خواص محافظتی خوبی که از خود ارائه می دهند به عنوان یکی از پر مصرف ترین پوشش های ضد خوردگی (به خصوص در پوشش دهی خطوط لوله های انتقال و سازه های فلزی غوطه ور در دریا) کاربرد وسیعی دارند. در این تحقیق به بررسی مقاومت به خوردگی دو پوشش محافظتی قیری بر پایه دو...

Bidyut Bikash Sutradhar Jyoti Prakash Giri Mahabir Panda,

Poor adhesion between two successive bituminous layers causes adverse effects on the structural strength of the pavement and develops a numbers of premature failure. To improve the adhesion, it is a general practice to apply a tack coat over an existing or newly constructed bituminous surface before laying another bituminous layer. The main objective of this study is to explore the influence of...

Journal: :iranian journal of oil & gas science and technology 2015
hamid reza zamanizadeh mohammad reza shishesaz iman danaee davood zaarei

in this study, the corrosion resistance of a bituminous coating reinforced with different ratios ofnanoclay pigment was studied. to make nanocomposite coatings, 2, 3, and 4 wt.% of clay (cloisitena+) were incorporated into water emulsified bitumen. the coatings were applied to steel 37. opticalmicroscopy and x-ray diffraction (xrd) were used to characterize the nanocomposite structure. inorder ...

2013
S. C. Somé

The classical asphalt mix manufacturing commonly requires the heating and the complete drying of aggregates. The induced energy cost has opened the way to develop alternatives processes with low energy/ carbon materials such as Warm Mix Asphalt (WMA). Their manufacturing requires specifics techniques to achieve similar performances than Hot Mix Asphalt (HMA). However, manufacturing temperature ...

Journal: :international journal of transportation engineereing 2014
mahabir panda jyoti prakash giri bidyut bikash sutradhar

poor adhesion between two successive bituminous layers causes adverse effects on the structural strength of the pavement and develops a numbers of premature failure. to improve the adhesion, it is a general practice to apply a tack coat over an existing or newly constructed bituminous surface before laying another bituminous layer. the main objective of this study is to explore the influence of...

Journal: :Geochemical Transactions 2007
Ying Zhang Guijian Liu Chen-Lin Chou Lei Wang Yu Kang

Forms of selenium in bituminous coal, anthracite, and cokeite (natural coke) from Huaibei Coalfield, Anhui, China, have been determined by sequential solvent extraction. The selenium content in bulk samples is 4.0, 2.4, and 2.0 microg/g in bituminous coal, anthracite, and cokeite, respectively. The six forms of selenium determined by six-step solvent extraction are water-leachable, ion-exchange...

2011
M. Jovanović

This paper presents results of investigation the possibility of replacing the mineral filler with fly ash from power plant “Gacko” in the bituminous aggregate mixture BNS 22A. The most important physical-mechanical properties of bituminous aggregate mixture with fly ash from power plant “Gacko” used as filler were investigated. Based on the results obtained it was concluded that fly ash from po...

2007

Rutting is one of the most important distresses in asphalt pavements due to its frequency. Rutting or channeling, could be classified in three types: 1) mechanical deformation (rutting in subgrade or base), 2) plastic flow (unstable asphalt layer), and 3) wheel path consolidation. The plastic flow of bituminous mixture depends on many factors; one of this is the type of asphalt used in the mixt...

2006
Animesh Das

Bituminous mix design is a delicate balancing act between the proportions of aggregate sizes and bitumen content. For a given aggregate gradation, the optimum bitumen content is estimated by satisfying a number of mix design parameters recommended in the specifications. In this paper, some of new considerations related to the bituminous mix design are discussed. Bituminous mix design, with thes...

In this study, the corrosion resistance of a bituminous coating reinforced with different ratios of nanoclay pigment was studied. To make nanocomposite coatings, 2, 3, and 4 wt.% of clay (Cloisite Na+) were incorporated into water emulsified bitumen. The coatings were applied to steel 37. Optical microscopy and X-ray diffraction (XRD) were used to characterize the nanocomposite structure. In or...

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