Results 31 to 40 of about 1,844 (200)

Circular Innovations in Complex Systems: A Blueprint of Four Design Archetypes

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Circular innovations (CI), defined as the redesign of products, services or practices to minimise waste, reduce resource use and regenerate natural systems, are essential for advancing the circular economy. Despite growing recognition, their deployment in systems of linked parts with unpredictable interactions (complex systems) remains limited
Sophie Führer   +2 more
wiley   +1 more source

Ensemble‐based soil liquefaction assessment: Leveraging CPT data for enhanced predictions

open access: yesCivil Engineering Design, Volume 7, Issue 1, Page 23-35, March 2025.
Abstract This study focuses on predicting soil liquefaction, a critical phenomenon that can significantly impact the stability and safety of structures during seismic events. Accurate liquefaction assessment is vital for geotechnical engineering, as it informs the design and mitigation strategies needed to safeguard infrastructure and reduce the risk ...
Arsham Moayedi Far, Masoud Zare
wiley   +1 more source

Self compacting self curing concrete with lightweight aggregates

open access: yesGrađevinar, 2016
The self compacting self curing concrete made by partially replacing fine aggregate with the light expanded clay aggregate and fly ash aggregate is described in the paper. At that, maximum 25 % of fine aggregate (measured by volume) was replaced.
Gopi Rajamanickam, Revathi Vaiyapuri
doaj   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang   +4 more
wiley   +1 more source

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

open access: yesDeep Underground Science and Engineering, EarlyView.
A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen   +5 more
wiley   +1 more source

Expanded clay basalt fiber concrete: Solving structural defects caused by water penetration

open access: yesCogent Engineering, 2021
The objective of this research paper is to analyze the materials which can be suggested for usage to solve the problem of structural defect caused by water absorption through penetration. Each of the concrete types was made in five concrete mix series of
Paschal Chimeremeze Chiadighikaobi   +3 more
doaj   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

open access: yesDeep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang   +5 more
wiley   +1 more source

Influence of Fly Ash, Bottom Ash, and Light Expanded Clay Aggregate on Concrete

open access: yesAdvances in Materials Science and Engineering, 2015
Invention of new methods in strengthening concrete is under work for decades. Developing countries like India use the extensive reinforced construction works materials such as fly ash and bottom ash and other ingredients in RCC construction.
S. Sivakumar, B. Kameshwari
doaj   +1 more source

The dependence of the physical mechanical properties of expanded-clay lightweight concrete on the composition

open access: yesMokslas: Lietuvos Ateitis, 2010
Binder material is the most expensive raw component of concrete; thus, scientists are looking for cheaper substitute materials. This paper shows that when manufacturing, a part of the binder material of expanded-clay lightweight concrete can be replaced ...
Marija Vaičienė, Jurgita Malaiškienė
doaj   +1 more source

Mechanical Properties of Barchip Polypropylene Fibre-reinforced Lightweight Concrete Made With Recycled Crushed Lightweight Expanded Clay Aggregate

open access: yesFrontiers in Materials, 2021
Concrete is one of the broadly used construction materials in the construction industry. This research intends to recommend the replacement of conventional coarse aggregates with recycled lightweight expanded clay aggregate (LECA) which offers several ...
Ming Kun Yew   +5 more
doaj   +1 more source

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