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The present study aims at simulating and experimenting on factors that impact

temperature and asphalt pavement compaction quality. Environmental factors are


identified with the aid of measurement equipment for temperature, and dynamic
analysis and finite element simulation are conducted to determine the influence of
temperature, compactness, and base modulus on the test index in the testing process
of compaction quality. A support vector machine was used to build a compaction quality
prediction model. The indoor vibration compaction experiment was conducted to test the
impacts of temperature, compactness, and base modulus on the quality of compaction.
The average relative deviation of the compaction temperature prediction model under
the consideration of environmental factors was 1.7%. The compaction quality was
judged from the vibration acceleration amplitude; meanwhile, higher compactness and
smaller temperature may facilitate the modulating effect of compactness on the
relationship of vibration acceleration amplitude. Thus, semi-rigid base modulus played a
more significant role than flexible base modulus in the influence of modulus on
compaction quality. This vibration compaction experiment further validated the feasibility
of the quality prediction model of compaction with an average relative deviation of only
0.44%. Satisfactory service function of pavement relies on the right development of
durable and long-life pavement. The inadequate maintenance of maturity of the
pavement is considered due to its quality of compaction, because the temperature and
compactness monitored at the time of compaction have a great influence on it, so it is
highly important to understand the factors influencing asphalt mixture compaction
quality and the methods of the compaction temperature test. (J. Li, & X. Zhang, 2024)

Study on the influencing factors of asphalt mixture compaction quality test method
based on simulation and experimentation.
https://www.sciencedirect.com/science/article/abs/pii/S0263224124018049
Self-Compacting concrete, which flows under its own weight without any need for
compaction or vibration, can save construction time, labor forces, and machine power.
The addition of Fibers to Self-compacting concrete and High Strength concrete may
improve its properties, yet retain some ductility. High Strength concrete is brittle, crack-
prone and reduces flexural and tensile strength. Basalt Fibres are eco-friendly, energy-
intensive, inexpensive, non-toxic, and have high stability. Fibre-reinforced composites,
which are used widely in civil infrastructure, possess high strength-to-weight ratio,
toughness, resistance to crack formation and more uniform stress field. The changes in
physical and mechanical properties are based on the fiber concentration and length;
higher length of the fibre reduces workability and compressive strength. Basalt Fibers
have excellent bond strength when used with proper content compared to concrete
plain mixture. The present research aims to find out whether the addition of Basalt
Fibers in High Strength Self Compacting concrete would be beneficial to structures
affected by environmental conditions.Self-compacting concrete is a very fluid type of
concrete mix, which can flow under its own weight and fill the molds for full compaction
without requiring vibration. It makes Self compacting concrete suitable to be placed in
complex forms and areas with congested reinforcement, for the easy and quality
construction. It has been demonstrated that self compacting concrete yields the
advantages of saving the labor cost, better surface quality, and lower chance of defects
including segregation and bleeding. Much work has been carried out in incorporating
fibers to the concrete mixtures for enhancing various mechanical and durability
properties.This literature on the basalt fibers and their effects on the durability
characteristics of high-strength self-compacting concrete indicates improved
performance in many applications. Mechanical properties and durability are improved by
the introduction of basalt fibers, which leads to the highly sustainable and resilient
concrete structures. Further studies in this regard are required to continue exploring
mechanisms that make up enhanced material performance. ( K. Navya, & S. Rakesh,
2022).

Studies on the effects of basalt fibres on the durability characteristics of high strength
self compacting concrete.
https://www.sciencedirect.com/science/article/abs/pii/S2214785321082614
Roller-compacted concrete (RCC) is a dry concrete mix that has gained popularity with
its great cost efficiency and rapid placement in most of the applications undertaken in
construction. These works have established the durable footing of RCC as an
alternative for pavements, dams, and industrial floors, citing its superiority over normal
conventional concrete due to lower water content and reduced construction time. The
proportions and gradation of aggregates greatly influence the packing density and voids
within the mix. Studies show that maximum aggregate grading enhances compactness
and strength. On the other hand, though RCC makes use of minimal water, when water
is present in contact during mixing, it influences workability and compacting efficiency,
but it is also accountable for achieving desired density through moisture balance. The
type of compaction method-roller, weight, and speed-is significant. Since the changes of
compaction parameters can achieve different compactness, it implies that proper
strategy for compaction is needed. In order to study various periods of compaction,
many models have been developed aiming to visualize the arrangement of the particles
as well as their interactions. The change in different material configurations will be
understood through the help of this theory, leading to changes in general performance.
Such numerical modeling technique captures the behavior of granular materials with
detailed understanding of particle dynamics under compaction. The study only tackles
granular stacking models. These involve the way particles get stacked up and have
impacts on compactness. Literature up to date suggests that these can predict with
accuracy the packing density and material properties of RCC which allow optimization
of the formulations of the former. Various analyses comparing the conventional concrete
method with RCC also revealed the fact that the latter has a higher strength, is cheaper
to use, and can bear heavier loads than the former. Such comparative analyses
emphasize the need to obtain precise predictive models to be chosen at the optimum
configuration of RCC for specific applications in order to get better in real-world
exposure. Extensive literature available on the prediction of compactness of RCC is
basically related to crucial aspects of factors influencing the RCC properties,
development of modeling techniques, and its advantages over conventional concrete.
The fruitful study on granular stacking models with valuable contributions to RCC will
enhance design and application, paving the way for further research and practical
improvements in the field. (T. Sedran, & C. Dufour, 2016).

Prediction of the compactness of roller-compacted concrete using a granular packing model.


Construction and Building Materials, 118, 143-150.
https://www.researchgate.net/profile/Thierry-Sedran/publication/
289274996_Prediction_of_the_compactness_of_roller-
compacted_concrete_using_a_granular_stacking_model/links/5ff6044992851c13fef3154f/
Prediction-of-the-compactness-of-roller-compacted-concrete-using-a-granular-stacking-
model.pdf
Literature on new properties of self-compacting concrete involving sawdust ash seems
promising but also has challenges. Sawdust ash would thus benefit the workability of
the mix and also be beneficial to sustainable construction. More research is thus still
needed on optimizing mix designs and interaction between sawdust ash and other
concrete constituents before findings are meant to enhance the sustainability and
performance of concrete application. Sawdust ash, which is a by-product of sawmill
wood processing, has been studied in partial substitution of either cement or fine
aggregates in concrete. Research indicates that sawdust ash provides improved
workability while concrete becomes lighter in density due to some possible lightening of
the structures. According to research, sawdust ash addition improves workability of Self
compacting concrete. Fine particle size sawdust ash is giving flow properties to the
concrete, but too high an amount will hamper the workability if not balanced with other
constituents of the mix. Use of sawdust ash in self-compacting concrete makes possible
the development of sustainable construction practices. Waste generation is reduced,
which in turn reduces the carbon footprint generated while using cement and different
patterns of produced cement. According to literature, to respond to environmental
issues while maintaining performance, what should be developed as a solution is an
eco-friendly concrete solution.(A. Elinwa et. al. 2008)

Assessing of the fresh concrete properties of self-compacting concrete containing


sawdust ash
https://www.sciencedirect.com/science/article/abs/pii/S0950061807000414

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