As a new material in the construction field,polyvinyl alcohol fiber cement stabilized macadam pavement has a
very broad application prospects. The study of the basic mechanical properties of polyvinyl alcohol fiber cement
stabilized macadam is also a hot spot today. This paper studies the flexural strength of polyvinyl alcohol fiber
content is at 0.9Kg / m3,and the affect between the splitting tensile strength and the polyvinyl alcohol fiber.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Effect of naoh mercerisation on the cross linking of conventional and compact...eSAT Journals
Abstract An investigation of the effect of resin finishing on the properties of conventional and compact cotton yarn is reported. It is shown that compact yarns suffer greater weight losses than those of conventional yarns following cross linking treatment. Bending rigidity shows an increase with the concentration of sodium hydroxide prior to cross linking in both conventional and compact yarns. The yarn structure also plays an important role in resin finishing.
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
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Fibre Reinforced Plastic manufacturing methodsjeff jose
Composites manufacturing processes are complex, and involve combinations of the following physical processes:
1) Reinforcement Shaping
2) Resin Infusion
3) Composite Consolidation
Advantages and disadvantages of processing techniques
plastic composite manufacturing
Hand Lay-up
Spray up method
Filament winding
Match die molding
Pultrusion
Resin transfer molding
Reaction injection molding
Hand Lay-Up is well suited for low volume production of product.
This method can be used for both corrosion barrier and the structural portion
Fiber is chopped in a hand-held gun and fed into a spray of catalyzed resin directed at the mold. The deposited materials are left to cure under standard atmospheric conditions.
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Microstrip antennas play a vital role in communication system. It is required in high performance wireless applications. But due to its resonant nature microstrip antennas have some considerable drawbacks like narrowband performance. Extensive study has been carried out on microstrip patch antennas in the recent past, but it still have large scope for improvement in the near future. To overcome narrow bandwidth problem, number of methods and techniques have been suggested and investigated, keeping in mind that the basic advantages of microstrip antenna should not be altered such as low profile, light weight, low cost and simple printed circuit structure. The area of investigation includes modification in geometrical shape of the antenna, use of resonators, use of dipole, and many other parameters. This paper presents a comparison between conventional microstrip antenna and microstip antenna with finite ground plane at ultra wideband. HFSS simulation tool is used here for antenna simulation. For feeding purpose microstrip feed line is used (50Ω). Optimized result provides impedance bandwidth of 7.2GHz with VSWR<2, operating frequency range is from 6.5GHz to 13.7GHz. Proposed antenna is useful for many ultra wideband applications. =
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Effect of naoh mercerisation on the cross linking of conventional and compact...eSAT Journals
Abstract An investigation of the effect of resin finishing on the properties of conventional and compact cotton yarn is reported. It is shown that compact yarns suffer greater weight losses than those of conventional yarns following cross linking treatment. Bending rigidity shows an increase with the concentration of sodium hydroxide prior to cross linking in both conventional and compact yarns. The yarn structure also plays an important role in resin finishing.
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
Fibre Reinforced Plastic manufacturing methodsjeff jose
Composites manufacturing processes are complex, and involve combinations of the following physical processes:
1) Reinforcement Shaping
2) Resin Infusion
3) Composite Consolidation
Advantages and disadvantages of processing techniques
plastic composite manufacturing
Hand Lay-up
Spray up method
Filament winding
Match die molding
Pultrusion
Resin transfer molding
Reaction injection molding
Hand Lay-Up is well suited for low volume production of product.
This method can be used for both corrosion barrier and the structural portion
Fiber is chopped in a hand-held gun and fed into a spray of catalyzed resin directed at the mold. The deposited materials are left to cure under standard atmospheric conditions.
Bandwidth Improvement of UWB Microstrip Antenna Using Finite Ground PlaneIJERA Editor
Microstrip antennas play a vital role in communication system. It is required in high performance wireless applications. But due to its resonant nature microstrip antennas have some considerable drawbacks like narrowband performance. Extensive study has been carried out on microstrip patch antennas in the recent past, but it still have large scope for improvement in the near future. To overcome narrow bandwidth problem, number of methods and techniques have been suggested and investigated, keeping in mind that the basic advantages of microstrip antenna should not be altered such as low profile, light weight, low cost and simple printed circuit structure. The area of investigation includes modification in geometrical shape of the antenna, use of resonators, use of dipole, and many other parameters. This paper presents a comparison between conventional microstrip antenna and microstip antenna with finite ground plane at ultra wideband. HFSS simulation tool is used here for antenna simulation. For feeding purpose microstrip feed line is used (50Ω). Optimized result provides impedance bandwidth of 7.2GHz with VSWR<2, operating frequency range is from 6.5GHz to 13.7GHz. Proposed antenna is useful for many ultra wideband applications. =
Measuring innovation in the "Process" approach: the case of agro-food product...IJERA Editor
Today, innovation is an important pillar to effectively position in global markets. Nevertheless, produce a good completely new or significantly improved, requires reducing the gap between the intended purpose and the end result it either internally or externally of the firm. This paper also proposes a measurement model based on the "process" approach. This proposal is based on a set of explanatory variables and explained linking internal and external effectiveness of innovative product.
The Information Communication and Technology industry is made up of enterprises concerned with the design, manufacture, installation, development, support and management of computer-based information systems (both software and hardware). The rapid expansion of electronic technologies within the global TELECOM industry has been accompanied by an explosion of automation applications that are redefining the way we perceive and experience communication, entertainment and security in our personal and professional environments. Convenience is now a function of the extent to which electronic appliances and gadgets are „online‟ and accessible through land and wireless networks. Information flow is expected on demand -constant, reliable, accurate and accessible. Such changes have understandably raised expectations with regards to the how effectively we function, in the places we live and work. No where have the effects of this new technology been felt as powerfully as in the global real estate industry.
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Electroelastic Response of a Piezoelectric Semi-infinite Body with D∞ Symmetr...IJERA Editor
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subjected to surface friction parallel to the ∞-fold rotation axis. By applying the analytical technique previously
proposed by us, we formulate expressions for electroelastic field quantities, including electric potential, electric
field, electric displacement, elastic displacement, strain, and stress by using two “elastic displacement potential
functions” and two “piezoelastic displacement potential functions.” These potential functions and, consequently,
the electroelastic field quantities are formulated using Fourier transforms in order to satisfy electroelastic
boundary conditions. We carried out numerical calculations to correctly evaluate field quantities inside the body
and at its surface. As a result, we were successful in quantitatively elucidating the surface electric displacement
in response to the elastic stimulus of surface friction and suggested the possibility of a nondestructive evaluation
technique using piezoelectric signals.
Premiera PricePanorama.com @ Shopcamp (14.06.2013)Grupa Manubia
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Prezentacja odbyła się 14 czerwca 2013 w Krakowie podczas kolejnej edycji spotkania "Shopcamp". Dane w prezentacji aktualne na dzień 13.06.2013.
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Reliability and Fuzzy Logic Concepts as Applied to Slope Stability Analysis –...IJERA Editor
Considerable uncertainty exist with regard to stability of slopes due to several factors and recognition of these uncertainties has made designees to introduce factor of safety. Several studies, during recent years on analytical methods using soil properties have improved understanding the several uncertainties. The reliability analysis of slopes can be used to represent uncertainty in mathematical models, which can be assumed to follow the characteristic of random uncertainty. The distribution uncertain variable, which is unknown, makes its estimation difficult. Hence, the concepts of fuzzy set theory appear to be quite reliable when limited information is available. This paper attempts to review the slope stability problem and deals with the intricacies of the concept of reliability and fuzzy logic as applied to stability analysis of slope. It has been suggested that the FOSM algorithm provides a general agreement among the different slope stability solutions.
As a new material, the researches on polyvinyl alcohol fiber cement stabilized macadam are also less. This
article studies the effect of different volume fraction of fiber length on the compressive strength and splitting
tensile strength of cement stabilized macadam.To promote polyvinyl alcohol fiber cement stabilized macadam’s
application,it has theoretical significance and engineering application value.
To Study the mechanical properties of coconut coir fiber reinforced with epo...IJMER
In this study the Mechanical Properties of Coconut coir Fiber is reinforced with epoxy resin
of different lengths (5mm,10mm,15mm) and coir fibers by treating the fiber with NaOH by fraction of
5 % are studied here. All samples were made using hand layup technique and specimens were prepared
as per ASTM standard D3039. The samples were tested according to ASTM D3039 standard using
Universal testing machine (UTM). The significant findings of the research showed that NaOH
treatment improved the tensile properties, ductility and hardness of the composite further Increase in
length of fibers was found to increase the tensile strength. The maximum tensile strength was found for
15 mm length of coir fibers
Strength Evaluation of Steel-Nylon Hybrid Fibre Reinforced ConcreteIJERA Editor
When fibres like steel, glass, polypropylene, nylon, carbon, aramid, polyester, jute, etc are mixed with concrete known as fibre reinforced concrete. To overcome the deficiencies of concrete; fibres are added to improve the performance of concrete. In this research hybrid reinforced concrete is made by using steel and nylon 6 fibres. The inclusion of both steel and nylon 6 fibres are used in order to combine the benefits of both fibers; structural improvements provided by steel fibers and the resistance to plastic shrinkage improvements provided by nylon fibers. So the aim of this project is to investigate the mechanical properties (compressive strength, flexure strength and split tensile strength) of hybrid fiber reinforced concrete under compression, flexure & tension. The total volume of fibre was taken 0.75 % of total volume of concrete. In this experimental work, four different concrete mix proportions were casted with fibres and one mix without fibres. Four different mix combinations of steel- nylon 6 fibres were 100-00%, 75-25%, 50-50% and 25-75%. Superplasticizer was used in all mixes to make concrete more workable. The results shown that compressive, split tensile and flexural strength of hybrid fibre reinforced concrete increase by increasing quantity of steel and nylon 6 fibres. The increase in compressive and tensile strength due to incorporation of steel fibre is greater than that of using nylon fibre. For the nylon 6 fibres, adding more fibres into the concrete has a limited improvement on splitting tensile strength. Inclusion of nylon 6 fibres along with steel fibres results in considerable improvement in flexural strength as compared to solo steel fibre.
Experimental Investigation on Properties Concrete Paver Block with the Inclus...IJERA Editor
In this experimental investigation the compressive strength, water absorption and flexural strength of paver
blocks were determined by adding Coconut fibers in the top 20mm thickness. Coconut fibers were added in
proportions of 0.1%, 0.2%, 0.3%, 0.4% and 0.5% in volume of concrete. The compressive strength, flexural
strength and water absorption were determined at the end of 7 and 28 days. Test results indicate that addition of
coconut fiber by 0.3% paver block attains maximum compressive strength. Test results indicate that addition of
coconut fiber gradually increases flexural strengths and water absorption at 7 and 28 days. In this investigation
at 0.3% of coconut fiber content effect of top layer thickness on compressive strength and flexural strength is
also determined. Results show that inclusion of fibers even up to 50% of top layer thickness compressive and
flexural strengths are increasing. The paper also shows the cost comparison per each block.
Flexural Strength of Poly Propylene Fiber Reinforced PMMAinventionjournals
Poly Methyl Methacrylate based restorations are widely accepted in dental and medical field due to the excellent biocompatibility and easy fabrication, however these restorations exhibit inferior mechanical properties. Therefore, the present study conducted to enhance the flexural strength of PMMA based material by reinforcing conventional PMMA with poly propylene fiber. 10 different test groups were prepared by varying the weight percentage (2.5, 5 & 10 Wt %) and aspect ratio (3mm/220μm, 6mm/220μm & 12mm/220μm) of the poly propylene fibers. Results obtained were statistically analyzed using One – Way Anova followed by Tukey Kramer multiple comparison test. All fiber reinforced test groups showed improved flexural strength and 6mm long fiber in 2.5 Wt% showed the highest flexural strength among the fiber reinforced test groups.
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Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
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CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
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The study of the basic mechanical properties of polyvinyl alcohol fiber cement stabilized macadam
1. Wang Shipeng Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 5, Issue 6, ( Part -2) June 2015, pp.04-05
www.ijera.com 4 | P a g e
The study of the basic mechanical properties of polyvinyl alcohol
fiber cement stabilized macadam
Wang Shipeng* Liang Nai Xing
*( School of Traffic and transportation, Chongqing Jiaotong University, Chongqing 400074, China)
ABSTRACT
As a new material in the construction field,polyvinyl alcohol fiber cement stabilized macadam pavement has a
very broad application prospects. The study of the basic mechanical properties of polyvinyl alcohol fiber cement
stabilized macadam is also a hot spot today. This paper studies the flexural strength of polyvinyl alcohol fiber
content is at 0.9Kg / m3
,and the affect between the splitting tensile strength and the polyvinyl alcohol fiber.
Keywords –polyvinyl alcohol fiber, engineering application ,splitting strength, flexural strength.
I. Introduction
Polyvinyl alcohol is a high strength and high el
astic modulus fibers.It has good hydrophilic fiber s
urface that can absorb a small amount of free water,
and the bond strength with cement matrix is high.
Polyvinyl alcohol fiber itself has a higher strength a
nd elastic modulus, it not only can effectively inhib
it the early cracks of cement stabilized gravel base l
ayer, but also can improve the toughness and impac
t resistance, while improving primary barrier prope
rties and abrasion resistance, thereby improving the
durability of the grass-roots and extending the life
of the road. In this paper, We use different contents
and different lengths of polyvinyl alcohol fiber to s
tudy the flexural strength and splitting strength of p
olyvinyl alcohol fiber cement stabilized macadam.
Ⅱ. Test generalization
The cement used in this test is 32.5 ordinary por
tland cement of Anhui Huaihai United Cement Fact
ory;the polyvinyl alcohol fiber is made of Shanghai
Kaidu Industrial Development Limited Liability C
ompany,its cross-sectional area is 1.52×10-4
mm2
, e
lastic modulus is 3.5×104
Mpa and tensile strength i
s 1600Mpa.There are five gravel particle size: 1#
(19-31.5mm)、2#(9.5-19mm)、3#(4.75-9.
5mm)、4#(2.36-4.75mm)、5#(0-2.36mm).
After testing we identified the target proportion of
cement stabilized macadam is 1#:2#:3#:4#:5
#:=12:30:23:6:29,and the dose of cement is 3.2%.
The formula of prism flexural strength is
max
2cf
F l
f
bh
Explanation: cuf —prism flexural strength(Mpa);
maxF —maximum load(KN);
l—seat pitch(mm);
b—sectional width(mm);
h—sectional height(mm).
The formula of splitting tensile strength is
max max
st
2
0.637
F F
f
A A
Explanation: stf — splitting tensile strength
(MPa);
A—Bearing area(mm2
);
maxF —maximum load(KN).
III. Test results and analysis
2.1 The flexural strength of polyvinyl alcohol
fiber cement stabilized macadam
The polyvinyl alcohol fiber’s cement of cemen
t stabilized macadam is 0.9Kg/m3
,and the length of
the fiber is 0mm, 12mm, 18mm, 24mm, 30mm. Th
e size of the specimen is 100mm×100mm×400mm,
and the curing period of the specimen is 7days. We
found that when the fiber length is 0mm, the flexur
al strength of specimens is 1.54Mpa; when the fiber
length is 12mm, the flexural strength of specimens
is 1.35Mpa; when the fiber length is 18mm, the fle
xural strength of specimens is 1.50Mpa; when the f
iber length is 24mm, the flexural strength of specim
ens is 1.58Mpa; when the fiber length is 30mm, the
flexural strength of specimens is 1.44Mpa. Accord
ing to the results, when the fiber length of 24mm, t
he flexural strength of specimens is biggest as 1.58
MPa.By contrast the flexural strength of different fi
ber length,we find the flexural strength of specimen
s show a decreasing trend.
RESEARCH ARTICLE OPEN ACCESS
2. Wang Shipeng Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 5, Issue 6, ( Part -2) June 2015, pp.04-05
www.ijera.com 5 | P a g e
0
0.5
1
1.5
2
0 12 18 24 30
the lengths of fiber/mm
flexuraltensile
strength/Mpa
Figure 1:the flexural strength when the cement
is 0.9Kg/m3
2.2 The splitting tensile strength of polyvinyl
alcohol fiber cement stabilized macadam
The polyvinyl alcohol fiber’s cement of cemen
t stabilized macadam is0、0.6 Kg/m3
、0.9 Kg/m
3
、1.2 Kg/m3
, each cement of fiber has four kinds l
ength:12mm, 18mm, 24mm, 30mm. The specimen
size of cylinder is diameter 150mm, height 150mm,
and the curing period of the specimen is 7days. We
found that the flexural strength of specimens is 1.5
4Mpa when the fiber length is 0mm; when the cem
ent of the fiber is 0.6 Kg/m3
and the length of the fi
ber is 12mm、18mm、24mm、30m, the splitting t
ensile strength of specimens is 0.206 MPa、0.221
MPa、0.192MPa、0.210MPa; when the cement of
the fiber is 0.9Kg/m3
and the length of the fiber is
12mm、18mm、24mm、30m, the splitting tensile
strength of specimens is 0.203MPa、0.229MPa、
0.217MPa、0.222MPa; when the cement of the fib
er is 1.2Kg/m3
and the length of the fiber is 12m
m、18mm、24mm、30m, the splitting tensile stre
ngth of specimens is 0.181MPa、0.240MPa、0.17
7MPa、0.209MPa. Thus, polyvinyl alcohol fiber c
ould improved the splitting strength of cement stabi
lized macadam to a certain extent.
.
0
0.1
0.2
0.3
0.4
12 18 24 30
the lengths of fiber/mm
splittingtensile
strength/Mpa
Figure 2: the splitting tensile strength when the
fiber volume fraction is 0.6Kg/m3
0
0.1
0.2
0.3
0.4
12 18 24 30
the lengths of fiber/mm
splittingtensile
strength/Mpa
Figure 3: the splitting tensile strength when the
fiber volume fraction is 0.9Kg/m3
0
0.1
0.2
0.3
0.4
12 18 24 30
the lengths of fiber/mmsplittingtensile
strength/Mpa
Figure 4: the splitting tensile strength when the
fiber volume fraction is 1.2Kg/m3
IV. Conclusion
(1) When the fiber content is 0.9 Kg / m3
in polyvin
yl alcohol fiber cement stabilized macadam, the fle
xural strength of specimens increases first and then
tends to be smaller with the bending strength of fib
er length increases. The flexural strength of cement
stabilized macadam is largest when the length of th
e fiber is 24mm.
(2) Polyvinyl alcohol fiber could improved the split
ting strength of cement stabilized macadam to a cer
tain extent. The splitting tensile strength of cement
stabilized macadam is largest when the length of th
e fiber is 18mm and the fiber content is 0.9 Kg / m3
.
Reference
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