Ocean & Coastal Management,
Год журнала:
2024,
Номер
251, С. 107049 - 107049
Опубликована: Фев. 28, 2024
The
increasing
littoralization
process
of
coastal
areas
in
recent
decades
to
adapt
them
user
needs
has
generated
important
changes
ecosystems.
This
is
the
case
coast
Tazacorte
(Canary
Islands,
Spain)
where
construction
a
port
1970s
caused
dynamics
that
allowed
appearance
sandy
beach
as
result
contributions
made
by
ravines
and
nourishment
actions.
In
this
context,
aim
article
carry
out
an
analysis
current
situation
better
understand
its
relationship
with
local
effects
recently
constructed
infrastructure.
management
measures
have
been
executed
date
are
discussed
new
proposed.
methodology
combines
field
work,
variation
shorelines,
LiDAR
marine
atmospheric
climate
characterization.
results
show
clear
difference
between
processes
analysed
long
term
shoreline,
area
volume
indicate
positive
trend
(between
17.64
151.05
m,
from
15,060
67,096
m2
141,564
630,674m3
respectively),
which
mainly
explained
role
infrastructures
(breakwaters
port),
however,
short-term
2009
2020,
seafront
continue
flood
consequence
storms
runoff
gullies,
despite
inputs
negative
irregular
behaviour,
is,
years
689.966
m3
2010
604,096
2014.
sense,
natural
against
costs
approximately
45,000
euros
per
year
requires
continuous
work
during
winter
spring.
Therefore,
research,
through
it
proposes,
aims
increase
resilience
extreme
events
long-term
point
view.
Results in Engineering,
Год журнала:
2024,
Номер
23, С. 102478 - 102478
Опубликована: Июнь 28, 2024
Workable,
environmentally
friendly,
sustainable
sand
concrete
was
reviewed
to
replace
river
for
production.
The
ecology
and
the
biological
balance
will
be
preserved
with
help
of
carefully
chosen
sand.
A
systematic
literature
review
(SLR)
methodology
employed
extract
data.
study
examined
strength
durability
characteristics
recycled
desert
from
past
published
studies.
Experimental
results
investigations
indicate
that
prepared
30
%
is
best
result
compared
100
There
an
acceptable
decrease
in
at
50
replacement,
a
significant
reduction
reported
%.
Compared
sand,
less
durable.
In
addition,
based
on
example
used
this
study,
replacement
approximately
735
×
106
tons
preserved.
Finally,
it
concludes
using
make
would
economical
beneficial
environment.
Case Studies in Construction Materials,
Год журнала:
2024,
Номер
20, С. e02867 - e02867
Опубликована: Янв. 10, 2024
Excavated
rock
from
underground
tunneling
activities
constitutes
a
significant
portion
of
the
overall
construction
and
demolition
(C&D)
waste,
yet
its
efficient
reuse
is
challenging.
Here
we
propose
an
integrated
approach
combining
utilization
excavated
production
eco-friendly
ultra-high
performance
concrete
(UHPC).
As
first
steps
to
assess
feasibility
approach,
workability,
mechanical
properties,
fracture
toughness
test,
phase
stability
shrinkage
UHPC
were
comprehensively
studied.
The
results
show
that
increasing
content
in
leads
reduction
flowability
but
improves
flexural
with
enhancement
stability.
However,
this
effect
diminishes
larger
sizes.
compressive
strength
mixture
400
kg/m³
dosage
5-10
mm
size
range
achieve
104.1
MPa,
which
better
than
reference
UHPC.
Meanwhile,
elevated
obviously
reduces
shrinkage,
notably
within
mm.
In
addition,
assessment
was
performed
evaluate
both
environmental
economic
perspectives.
indicate
incorporating
as
aggregates
into
can
result
cost
savings
up
9.5%,
11%
embodied
energy,
15.5%
decrease
carbon.
Additionally,
integration
yield
superior
properties
compared
This
also
dependence
on
natural
aggregates,
promoting
sustainability.
IOP Conference Series Earth and Environmental Science,
Год журнала:
2024,
Номер
1319(1), С. 012004 - 012004
Опубликована: Март 1, 2024
Abstract
This
paper
covers
topical
issues
of
groundwater
and
surface
water
inflow
depending
on
the
quarry
field
spatial
dimensions,
which
leads
to
an
increase
in
costs
dewatering
drainage.
The
dimensions
a
are
one
key
indicators
determining
appropriate
depth
mining
deposits
hard-rock
building
materials.
theoretical
research
is
performed
using
following
methods:
statistical
analytical
method
for
analyzing
hydrological
characteristics
non-metallic
their
parameters;
graphic-analytical
area
walls
from
flows
due
atmospheric
precipitation;
technical-economic
assessing
patterns
changes
depth;
options
selecting
type
drainage
equipment.
As
result,
have
been
obtained
that
characterize
change
normative
precipitation
unit
studied
field.
practical
significance
conducted
use
results
developed
design
solutions,
tested
implemented
scientific-technical
(project)
documentation
conditions
Sofiivskyi,
Mykytivskyi,
Boleslavchykskyi,
Chaplinskyi,
Lyubimivskyi
fields
minerals.
Environmental Progress & Sustainable Energy,
Год журнала:
2024,
Номер
43(6)
Опубликована: Авг. 22, 2024
Abstract
Rice
husk
silica
(RHS)
has
emerged
as
a
sustainable
alternative
to
traditional
sources
of
in
various
applications,
offering
eco‐friendly
attributes,
cost‐effectiveness,
and
versatility.
This
review
explores
the
potential
RHS
substitute
for
conventional
sources,
highlighting
its
alignment
with
development
objectives
appeal
industries
seeking
environmental
responsibility.
Among
extraction
methods,
acid
leaching
is
identified
yielding
higher
purity
silica.
In
contrast,
among
novel
techniques,
hydrothermobaric
process
stands
out
producing
high
nanosilica.
Despite
challenges
like
limited
access
high‐quality
rice
husks
variations
content,
methods
show
promising
avenues
production,
addressing
waste
management,
concerns.
Further
optimization
techniques
are
essential
widespread
acceptance,
future
research
focusing
on
nanoparticle
synthesis
incorporating
green
chemistry
principles.
comprehensive
provides
valuable
resource
researchers
explore
alternatives
their
respective
fields,
aiming
foster
adopting
more
practices
materials
across
industries.
Caderno Pedagógico,
Год журнала:
2025,
Номер
22(1), С. e13592 - e13592
Опубликована: Янв. 22, 2025
A
areia
é
um
recurso
natural,
sendo
sua
extração
realizada
em
leitos
de
rios
provocando
impactos
direto,
com
alto
potencial
poluidor
ao
ecossistema
local.
O
objetivo
deste
estudo
foi
pontuar
os
aspectos
da
legislação
vigente
no
processo
regularização
ambiental
atividade
áreas
lóticas
do
Rio
Grande,
considerando
30
quilômetros
Estado
Minas
Gerais,
na
região
dos
municípios
Lavras,
Ribeirão
Vermelho,
Nepomuceno
e
Perdões.
Os
procedimentos
pesquisa
utilizados
neste
tiveram
caráter
exploratório
descritivo,
buscando
maior
entendimento
empreendimentos
que
atuam
ramo
cascalho
Bacia
Sul
nos
anos
2013
a
2023,
Superintendência
Regional
Regularização
Ambiental
(SUPRAM
-
Minas)
conforme
banco
dados
disponibilizados
plataforma
IDESisema.
resultados
demonstram
fragilidades
das
políticas
públicas
atuais
envolvem
o
empreendimento,
empreendedor
órgão
licenciador.
Constatamos
novos
métodos
mitigação
compensação
precisam
ser
avaliados
para
propostos
empreendimento
areeiros,
através
uma
Avaliação
Impacto
ou
até
mesmo
por
Estratégica,
recomendações
eficientes
se
refere
cada
bacia
hidrográfica,
criando
assim
considere
relevância
econômica
área
afetada,
bem
como
as
peculiaridades
necessidades
específicas
lavrada.
