Results 1 to 10 of about 47 (46)

Application of the Foamed Bitumen and Bitumen Emulsion to the Road Base Mixes in the Deep Cold Recycling Technology

The Baltic Journal of Road and Bridge Engineering, 2016
This paper presents findings of a study concerning the influence of binder type on the mechanical properties of road base in the cold recycling technology.
Marek Iwański, Anna Chomicz-Kowalska
doaj   +3 more sources

Reef communities associated with ‘dead’ cold-water coral framework drive resource retention and recycling in the deep sea [PDF]

Deep Sea Research Part I: Oceanographic Research Papers, 2021
Cold-water coral (CWC) reefs create hotspots of metabolic activity in the deep sea, in spite of the limited supply of fresh organic matter from the ocean surface (i.e. phytodetritus). We propose that ‘dead’ coral framework, which harbours diverse faunal and microbial communities, boosts the metabolic activity of the reefs, through enhanced resource ...
Sandra R. Maier, Furu Mienis, Evert de Froe, Karline Soetaert, Marc Lavaleye, Gerard Duineveld, Olivier Beauchard, Anna-Selma van der Kaaden, Boris P. Koch, Dick van Oevelen   +9 more
openaire   +3 more sources

Properties of a Three-Component Mineral Road Binder for Deep-Cold Recycling Technology [PDF]

Materials, 2020
This study examined the physical properties of a three-component mineral binder that is typically used in deep-cold recycling. Test binders were produced using Portland cement, hydrated lime, and cement bypass dust (CBPD) as a byproduct derived from cement production. The suitability of CBPD for use in road binders was assessed.
Zdzisława Owsiak, Przemysław Czapik, Justyna Zapała-Sławeta   +2 more
openaire   +2 more sources

Predicting the properties of a mixture produced using “cold” technology with foamed bitumen in terms of the properties of hydraulic binder mortars

Roads and Bridges, 2023
The paper presents the correlation between the mechanical properties of the mineral-aggregate mixture with foamed bitumen (MCAS) and the mechanical properties of mortars containing hydraulic binder. A significant aspect of the presented research results
Przemysław Buczyński, Grzegorz Mazurek, Marek Iwański   +2 more
doaj   +1 more source

A Deep-Sea Sponge Loop? Sponges Transfer Dissolved and Particulate Organic Carbon and Nitrogen to Associated Fauna

Frontiers in Marine Science, 2021
Cold-water coral reefs and sponge grounds are deep-sea biological hotspots, equivalent to shallow-water tropical coral reefs. In tropical ecosystems, biodiversity and productivity are maintained through efficient recycling pathways, such as the sponge ...
Martijn C. Bart, Meggie Hudspith, Hans Tore Rapp, Piet F. M. Verdonschot, Piet F. M. Verdonschot, Jasper M. de Goeij   +5 more
doaj   +1 more source

Riddles of Lost City: Chemotrophic Prokaryotes Drives Carbon, Sulfur, and Nitrogen Cycling at an Extinct Cold Seep, South China Sea

Microbiology Spectrum, 2023
Deep-sea cold seeps are one of the most productive ecosystems that sustained by hydrocarbons carried by the fluid. Once the seep fluid ceases, the thriving autotrophic communities die out, terming as the extinct seep.
Yu Chen, Yuanjiao Lyu, Jian Zhang, Qiqi Li, Lina Lyu, Yingli Zhou, Jie Kong, Xinyang Zeng, Si Zhang, Jie Li   +9 more
doaj   +1 more source

Deep-sea sponge grounds as nutrient sinks: denitrification is common in boreo-Arctic sponges [PDF]

Biogeosciences, 2020
Sponges are commonly known as general nutrient providers for the marine ecosystem, recycling organic matter into various forms of bioavailable nutrients such as ammonium and nitrate. In this study we challenge this view.
C. Rooks, J. K.-H. Fang, P. T. Mørkved, R. Zhao, H. T. Rapp, H. T. Rapp, H. T. Rapp, J. R. Xavier, J. R. Xavier, F. Hoffmann   +9 more
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Depth Profile of Nitrifying Archaeal and Bacterial Communities in the Remote Oligotrophic Waters of the North Pacific

Frontiers in Microbiology, 2021
Nitrification is a vital ecosystem function in the open ocean that regenerates inorganic nitrogen and promotes primary production. Recent studies have shown that the ecology and physiology of nitrifying organisms is more complex than previously ...
Miguel Semedo, Eva Lopes, Mafalda S. Baptista, Mafalda S. Baptista, Mafalda S. Baptista, Ainhoa Oller-Ruiz, Javier Gilabert, Maria Paola Tomasino, Catarina Magalhães, Catarina Magalhães, Catarina Magalhães   +10 more
doaj   +1 more source

Experimental research on deep gushing water cooling in constant temperature zone

Case Studies in Thermal Engineering, 2020
In order to deal with the thermal hazard in deep engineering, it is proposed to control the temperature of workface with the constant temperature zone as cold source and deep gushing water as refrigerant.
Dingyi Wei, Cuifeng Du, Haiyue Xu, Hongguang Zhang, Yuan Wang   +4 more
doaj   +1 more source

Characteristics of the fatigue life (IT-FT) of the recycled base course at the controlled stresses state

Budownictwo i Architektura, 2014
The paper presents the results of the base coarse made in the cold deep recycling technology with the emulsion in aspect of its durability for a different tensile stress level.
Marek Iwański, Przemysław Buczyński, Grzegorz Mazurek   +2 more
doaj   +1 more source