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You searched for: Publication Year 2019 Remove constraint Publication Year: 2019 Subject rivers Remove constraint Subject: rivers Subject term concrete Remove constraint Subject term: concrete
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1. Evaluation of the eco-friendly crushed waste oyster shell mortars containing supplementary cementitious materials

Author:
Da Chen; Pengcheng Zhang; Tao Pan; Yingdi Liao; Hui Zhao
Source:
Journal of cleaner production 2019 v.237 pp. 117811
ISSN:
0959-6526
Subject:
carbon dioxide; cement; chlorides; concrete; fly ash; greenhouse gas emissions; industry; mechanical properties; microstructure; oyster shells; rivers; sand; scanning electron microscopy; slags; wastes
Abstract:
... The ever-increasing demand for natural aggregates in the concrete industry has resulted in substantial consumption of a dwindling supply of natural resources, leading to irreversible environmental damage. One solution to solve this problem is through the use of waste materials as alternatives to natural aggregates. In this study, 30% of natural river sand was replaced by crushed waste oyster shell ...
DOI:
10.1016/j.jclepro.2019.117811

2. How Does the Japanese Water Shrew Chimarrogale platycephalus Cross the Concrete Walls of Check Dams?

Author:
Hiroaki Saito; Hiroshi Hashimoto; Teruaki Hino; Masaharu Motokawa
Source:
Mammal study 2019 v.44 no.1 pp. 1-11
ISSN:
1348-6160
Subject:
concrete; dams (hydrology); rivers; sediments; shrews; streams; surveys; Japan
Abstract:
... The concrete walls of check dams are considered a physical barrier for aquatic and semiaquatic animals that inhabit mountain streams. Traveling behaviors around concrete check dams by the Japanese water shrew Chimarrogale platycephalus, a semi-aquatic mammal, were directly observed via radio-tracking in Kamikoshi Stream in central Honshu, Japan. Traveling behaviors were mainly observed on the wet ...
DOI:
10.3106/ms2017-0056

3. Investigation of a new lightweight green concrete containing sludge ceramsite and recycled fine aggregates

Author:
Jianhe Xie; Junfeng Liu; Feng Liu; Junjie Wang; Peiyan Huang
Source:
Journal of cleaner production 2019 v.235 pp. 1240-1254
ISSN:
0959-6526
Subject:
cement; compression strength; concrete; mechanical properties; rivers; sand; slags; sludge; solid wastes; thermal conductivity
Abstract:
... The use of recycled aggregates in lightweight concrete is a sustainable solution to address solid wastes. This technology reduces the detrimental impacts of solid waste on the environment and addresses the shortage of natural resources. This study aimed to develop lightweight green concrete incorporating sludge ceramsite, recycled fine aggregate (RFA) and ground granulated blast-furnace slag (GGBS ...
DOI:
10.1016/j.jclepro.2019.07.012

4. Making concrete flexible: Adapting the operating rules of the Cantareira water system (São Paulo, Brazil)

Author:
Renata de Souza Leão; Lucia De Stefano
Source:
Water Security 2019 v.7 pp. 100032
ISSN:
2468-3124
Subject:
concrete; politics; rivers; water allocation; water security; Brazil
Abstract:
... The Cantareira system is a network of reservoirs located in the inland region of São Paulo State. In 1974 it started operating to bring water from a sparsely populated region – the headwaters of the Piracicaba, Capivari, and Jundiaí (PCJ) rivers – to a densely inhabited and fast-growing region – the São Paulo Metropolitan Region (SPMR). Since then, the operating rules of the Cantareira system have ...
DOI:
10.1016/j.wasec.2019.100032

5. Plastics and microplastics: A threat to environment

Author:
Nirban Laskar; Upendra Kumar
Source:
Environmental technology & innovation 2019 v.14 pp. 100352
ISSN:
2352-1864
Subject:
DDT (pesticide); byproducts; concrete; dust; government agencies; hexachlorobenzene; issues and policy; marine environment; microplastics; molecular weight; oceans; particulate emissions; plasticity; pollutants; rivers; surface water; toxic substances; wastes; zero tolerance
Abstract:
... Plastics are synthetic polymer compound mostly made from petrochemical sources, such compound has high molecular mass and plasticity and certain chemicals are added to increase the performance and efficiency of the products. Plastics size less than 5 mm are categorized as Microplastics and it is one of the greatest potential threat to marine environment for the whole world. There are two types of ...
DOI:
10.1016/j.eti.2019.100352

6. Utilizing coral waste and metakaolin to produce eco-friendly marine mortar: Hydration, mechanical properties and durability

Author:
Yunyao Wang; Zhonghe Shui; Xu Gao; Yun Huang; Rui Yu; Xiaosheng Li; Rui Yang
Source:
Journal of cleaner production 2019 v.219 pp. 763-774
ISSN:
0959-6526
Subject:
byproducts; carbon; cement; compression strength; concrete; construction materials; corals; durability; energy use and consumption; environmental impact; heat; ingredients; islands; mechanical properties; rivers; sand; wastes
Abstract:
... The shortage of construction materials for concrete production on islands far from mainland is a long-standing problem. Coral waste is a by-product during some marine engineering works and it has the potential to be recycled as concrete ingredients. The present work reports the hydration, mechanical and durability-related properties as well as the ecological impacts of marine mortars based on cora ...
DOI:
10.1016/j.jclepro.2019.02.147

7. A pilot study of river design for slope stability and frog ecology

Author:
Yuan-Hsiou Chang; Tsai-Fu Chuang
Source:
Landscape and ecological engineering 2019 v.15 no.1 pp. 51-61
ISSN:
1860-1871
Subject:
concrete; ecosystem engineering; ecosystems; finite element analysis; frogs; habitats; humans; natural enemies; predation; river engineering; rivers; safety factor; sustainable development
Abstract:
... A pilot study was carried out for the slope design of rivers which took into consideration both slope stability and frog ecology. Ecological engineering is defined as the design of sustainable ecosystems for the integration of human society with its natural environment for the benefit of both. In river engineering projects, the retaining banks and the river bottom are usually constructed of concre ...
DOI:
10.1007/s11355-018-0360-3

8. Bank Processes and Revetment Erosion of a Large Lowland River: Case Study of the Lower Tisza River, Hungary

Author:
Tímea Kiss; Gabriel J. Amissah; Károly Fiala
Source:
Water 2019 v.11 no.6 pp. -
ISSN:
2073-4441
Subject:
accelerated erosion; bank erosion; case studies; concrete; rivers; Hungary
Abstract:
... Stone and concrete revetments are widely constructed to control bank erosion and thus stabilize river banks. The consequences include accelerated erosion at unrevetted downstream channel sections and in-channel incision at revetted sections. The studied section of the Tisza River (Hungary) was revetted along 49% of its banks in the 20th century with stepped-block and placed-rock revetments. We the ...
DOI:
10.3390/w11061313

9. Bed-Load Transport in Two Different-Sized Mountain Catchments: Mlynne and Lososina Streams, Polish Carpathians

Author:
Artur Radecki-Pawlik; Piotr Kuboń; Bartosz Radecki-Pawlik; Karol Plesiński
Source:
Water 2019 v.11 no.2 pp. -
ISSN:
2073-4441
Subject:
bedload; concrete; culverts; dams (hydrology); flood control; floods; gravel; human resources; lakes; mountains; prediction; river engineering; riverbank protection; rivers; sand; sediment deposition; spring; stream channels; water reservoirs; watersheds
Abstract:
... The prediction and calculation of the volume of gravel and/or sand transported down streams and rivers—called bed-load transport is one of the most difficult things for river engineers and designers because, in addition to field measurements, personnel involved in such activities need to be highly experienced. Bed-load transport treated by many engineers marginally or omitted and often recei ...
DOI:
10.3390/w11020272

10. Ecohydraulic Modelling to Support Fish Habitat Restoration Measures

Author:
Ana Adeva-Bustos; Knut Alfredsen; Hans-Petter Fjeldstad; Kenneth Ottosson
Source:
Sustainability 2019 v.11 no.5 pp. -
ISSN:
2071-1050
Subject:
Salmonidae; concrete; ecosystems; fish; habitat conservation; habitats; lidar; models; remote sensing; rivers; rocks; shear stress; Sweden
Abstract:
... Despite that hydromorphological restoration projects have been implemented since the 1940s, the key to improve the effectiveness of future restoration measures remains a challenge. This is in part related to the lack of adequate aims and objectives together with our limitations in understanding the effects on the physical habitat and ecosystems from interventions. This study shows the potential of ...
DOI:
10.3390/su11051500

11. Effects of revetment type on the spatial distribution of soil nitrification and denitrification in adjacent tidal urban riparian zones

Author:
Lubing Yan; Changkun Xie; Xin Xu; Shengquan Che
Source:
Ecological engineering 2019 v.132 pp. 65-74
ISSN:
0925-8574
Subject:
biotransformation; concrete; denitrification; nitrification; nitrogen; nitrogen cycle; riparian areas; rivers; soil; soil compaction; soil nutrient dynamics; soil organic carbon
Abstract:
... Revetments between the river channels and riparian zones are important factors in the modification of urban riparian zones structure, particularly in zones adjacent to them. Although there have been many studies on the stability of revetments in tidal urban riparian zones, the quantitative effects of revetments on the nitrogen cycling in riparian zones adjacent to them remain unclear. Tidal ripari ...
DOI:
10.1016/j.ecoleng.2019.04.005

12. Hydraulic and Structural Analysis of Babolrud River Training Using Some Applied Software

Author:
R. Moosapour; S. F. Mousavi; Kh. Hosseini
Source:
̒Ulūm-i āb va khāk 2019 v.23 no.4 pp. 93-106
ISSN:
2476-5554
Subject:
computer software; concrete; gravity; models; river flow; rivers; tin; topographic maps
Abstract:
... Occurrence of heavy floods in rivers causes a lot of damages and losses. In this research, to highlight the river-training reaches in 10.9 km of Babolrud River, first, using topographic map of the area, the Tin layer was created in GIS software. Then, using the HEC-GeoRAS extension, the main route and cross sections of the river were prepared and introduced to the HEC-RAS model. River discharge wi ...

13. Introgression despite protection: the case of native brown trout in Natura 2000 network in Italy

Author:
Andrea Splendiani; Massimo Giovannotti; Tommaso Righi; Tatiana Fioravanti; Paola Nisi Cerioni; Massimo Lorenzoni; Antonella Carosi; Gianandrea La Porta; Vincenzo Caputo Barucchi
Source:
Conservation genetics 2019 v.20 no.2 pp. 343-356
ISSN:
1566-0621
Subject:
Salmo trutta; biodiversity; concrete; conservation areas; genetic variation; genotyping; habitat destruction; introgression; loci; microsatellite repeats; mitochondrial DNA; national parks; pollution; risk; rivers; sequence analysis; stakeholders; trout; Italy
Abstract:
... Mediterranean brown trout is subject to several serious threats such as pollution, water abstraction, habitat alteration and especially genetic introgression with domestic strains used for stocking activities. Despite this latter issue has largely been debated by scientists, local managers and stakeholders for decades, official stocking practices with domestic trout still persists in several count ...
DOI:
10.1007/s10592-018-1135-y

14. Testing the repellent effects of construction materials on the attachment of the invasive golden mussel, Limnoperna fortunei, in a Japanese urban tidal river

Author:
Kazuaki Matsui; Takayuki Fumoto; Hiroshi Kawakami
Source:
Limnology 2019 v.20 no.1 pp. 131-136
ISSN:
1439-8621
Subject:
Limnoperna fortunei; adverse effects; alkalinity; aluminum; biofouling; cement; concrete; construction materials; copper; financial economics; freshwater; invasive species; limestone; pH; riparian areas; rivers; salinity; stainless steel; wood; China
Abstract:
... The golden mussel, Limnoperna fortunei, is native to South China but has spread to Japanese freshwater environments as a nuisance invasive species. The golden mussel colonizes hard manmade substrates and its attachment can cause economic losses at water intake facilities. To evaluate the repellent effects of the high alkalinity (pH 12–13) of freshly prepared cement mortar on golden mussels, test p ...
DOI:
10.1007/s10201-018-0559-x

15. An environmental assessment of small hydropower in India: the real costs of dams’ construction under a life cycle perspective

Author:
Giorgio Bidoglio; Markus Berger; Matthias Finkbeiner
Source:
international journal of life cycle assessment 2019 v.24 no.3 pp. 419-440
ISSN:
0948-3349
Subject:
biodiversity; carrying capacity; case studies; computer software; concrete; dams (hydrology); ecosystem services; electricity; energy; environmental assessment; environmental impact; environmental performance; eutrophication; global warming; greenhouse gas emissions; greenhouse gases; guidelines; land use change; life cycle assessment; organic matter; rivers; steel; water power; India
Abstract:
... PURPOSE: In the last years, India has taken a number of initiatives to boost small hydropower development based on the assumption of being a green energy source with only limited disturbances on the social and natural environments. However, its real environmental performances have not been examined. The intention of this paper is to evaluate the potential environmental impacts of Small Hydropower ...
DOI:
10.1007/s11367-018-1458-4

16. The influence of revetment types on soil denitrification in the adjacent tidal urban riparian zones

Author:
Lubing Yan; Changkun Xie; Xin Xu; Shengquan Che
Source:
Journal of hydrology 2019 v.574 pp. 398-407
ISSN:
0022-1694
Subject:
concrete; denitrification; ecosystems; hyporheic zone; microorganisms; nitrates; nitrogen; nitrogen cycle; nitrous oxide; nitrous oxide production; permeability; pollution; riparian areas; river water; rivers; runoff; soil organic carbon; soil texture
Abstract:
... Riparian zones adjacent to revetments, as the last position of the entire riparian, are the last barrier to intercept runoff nitrogen pollution. They are also the areas where hyporheic exchange occurs when soil is submerged by river water. Revetments can be classified into impervious revetments and permeable revetments according to their permeability. It has been realized that impervious revetment ...
DOI:
10.1016/j.jhydrol.2019.04.071