A5015615949- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Innovative concrete reinforcement materials
- Structural Behavior of Reinforced Concrete
- Concrete and Cement Materials Research
- Earthquake Detection and Analysis
- Geology and Paleoclimatology Research
- Diamond and Carbon-based Materials Research
- Pacific and Southeast Asian Studies
- Aluminum Alloys Composites Properties
- Natural Fiber Reinforced Composites
- Seismology and Earthquake Studies
- Aluminum Alloy Microstructure Properties
- Seismic Waves and Analysis
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Advanced materials and composites
- Geological and Geophysical Studies
- Microstructure and mechanical properties
- Carbon Nanotubes in Composites
- Mineralogy and Gemology Studies
- Economic Zones and Regional Development
- Globalization, Economics, and Policies
- Structural Response to Dynamic Loads
University of Chicago
2014-2024
China University of Geosciences
2013-2024
Research Institute of Highway
2024
Ministry of Transport
2024
Nanjing University
2023-2024
Adamson University
2024
Taiyuan University of Technology
2023
Curtin University
2016-2022
China University of Geosciences (Beijing)
2020
Liaoning Shihua University
2018
Type-II glass-like carbon is a widely used material with unique combination of properties including low density, high strength, extreme impermeability to gas and liquid resistance chemical corrosion. It can be considered as carbon-based nanoarchitectured material, consisting disordered multilayer graphene matrix encasing numerous randomly distributed nanosized fullerene-like spheroids. Here we show that under both hydrostatic compression triaxial deformation, this high-strength highly...
Research Article| January 29, 2019 Reaction-induced embrittlement of the lower continental crust Sarah Incel; Incel * 1Physics Geological Processes, The Njord Centre, Department Geosciences, University Oslo, P.O. Box 1048, Blindern, 0316 Norway2Laboratoire de Géologie l'ENS, PSL University, UMR8538 du CNRS, 24 Rue Lhomond, 75005 Paris, France *E-mail: s.h.m.incel@geo.uio.no Search for other works by this author on: GSW Google Scholar Loïc Labrousse; Labrousse 3CNRS-INSU, Institut des...
Abstract This study experimentally examines the effect of rubber aggregate size on static and dynamic behavior rubberized concrete. Rubberized concrete specimens were prepared with different maximum sizes ranging from 1 to 3 mm 5 while content was kept constant at 15% by volume. The compressive investigated using split Hopkinson pressure bar (SHPB) tests. experimental results have shown that smaller aggregates showed higher strength as compared larger aggregates. Meanwhile, did not...
Nanoseismological analyses on labquakes under controlled conditions shed new lights mechanisms of deep-focus earthquakes.
Abstract Synchrotron‐based high‐pressure/high‐temperature single‐crystal X‐ray diffraction experiments to ~24 GPa and 700 K were conducted on eclogitic garnets (low‐Fe: Prp 28 Alm 38 Grs 33 Sps 1 high‐Fe: 14 62 19 Adr 3 2 ) omphacites Quad 57 Jd 42 Ae 53 27 20 ), using an externally heated diamond anvil cell. Fitting the pressure‐volume‐temperature data a third‐order Birch‐Murnaghan equation of state yields thermoelastic parameters including bulk modulus ( T 0 its pressure derivative ′...
Abstract Southern Tibet is the most active orogenic region on Earth where Indian Plate thrusts under Eurasia, pushing seismic discontinuity between crust and mantle to an unusual depth of ~80 km. Numerous earthquakes occur in lower portion this thickened continental crust, but triggering mechanisms remain enigmatic. Here we show that dry granulite rocks, dominant constituent subducted become brittle when deformed conditions corresponding eclogite stability field. Microfractures propagate...
This review explores the use of Ultra-High Molecular Weight Polyethylene (UHMWPE) fiber cloth as an innovative solution for repair and reinforcement concrete structures. UHMWPE is a polymer formed from very large number repeated ethylene (C2H4) units with higher molecular weight long-chain crystallization than normal high-density polyethylene. With its superior tensile strength, elongation, energy absorption capabilities, emerges promising alternative to traditional materials like glass...
SignificanceThe exothermic metamorphic reaction in orthopyroxene (Opx), a major component of oceanic lithospheric mantle, is shown to trigger brittle failure laboratory deformation experiments under conditions where garnet exsolution takes place. The product an extremely fine-grained material, forming narrow zones that are mechanically weak, thereby facilitating macroscopic faulting. Oceanic subduction characterized by two separate bands seismicity, known as the double seismic zone. upper...
This study examines the structural performance of concrete slabs and beams reinforced with various types reinforcement under centrally concentrated loading until failure. Three were studied, including steel meshes (A142), fibers (30 kg/m3), macro polypropylene (PP) (6 kg/m3). The discusses fracture behavior ground enhancement in resulting from inclusion PP terms load–strain load–deflection responses, deflection profiles, crack patterns. In addition, compared flexural fiber-reinforced to...
Abstract Geophysical modeling requires an upper mantle low‐viscosity zone (LVZ); recent results suggest that the LVZ could be within transition (MTZ) or above it, depending on boundary conditions. The rheology of olivine‐dominated uppermost is well constrained experimentally but not MTZ. Here we report first‐time measurement Mg 2 GeO 4 spinel (analogue ringwoodite, dominant mineral lower MTZ) in dislocation creep regime and compare it with olivine. In both cases, incorporate 15–20% pyroxene,...