Results 81 to 90 of about 161,341 (306)

Attenuation Law of Stress Waves in Cracked Rock Mass under Different Confining Pressures

open access: yesAdvances in Civil Engineering, 2019
Through theoretical analysis and indoor model tests, this paper explores the attenuation law of stress waves in the intact confined rock mass and cracked rock mass under different confining pressures, especially the relationship between the stress ...
Xiaoming Lou, Rui Luo, Jin Yu
doaj   +1 more source

Eksperimen Dan Analisis Lebar Retak Pada Balok Beton Bertulang Pasca Paparan Suhu Tinggi

open access: yesRekayasa Sipil, 2018
Cracking is one of the structural behaviors reviewed under the service boundary conditions. Cracks will be the gaps in the various substances in the reinforced concrete structures that will make the structure vulnerable.
Rizki Prasetiya   +2 more
doaj   +1 more source

Self-healing cementitious materials by the combination of microfibres and superabsorbent polymers [PDF]

open access: yes, 2014
Concrete cracks due to its low tensile strength. The presence of cracks endangers the durability as they generate a pathway for harmful particles dissolved in fluids and gases. Without a proper treatment, maintenance costs will increase. Self-healing can
De Belie, Nele   +4 more
core   +2 more sources

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Fractal-Based Non-Linear Assessment of Crack Propagation in Recycled Aggregate Concrete Using 3D Response Surface Methodology

open access: yesFractal and Fractional
This study investigates the fracture behavior of recycled aggregate concrete by integrating fractal theory and empirical modeling to quantify how recycled coarse aggregates (RCAs) and recycled fine aggregates (RFAs) influence crack complexity and maximum
Xiu-Cheng Zhang, Xue-Fei Chen
doaj   +1 more source

Benchmarking Image Processing Algorithms for Unmanned Aerial System-Assisted Crack Detection in Concrete Structures [PDF]

open access: yes, 2019
This paper summarizes the results of traditional image processing algorithms for detection of defects in concrete using images taken by Unmanned Aerial Systems (UASs).
Dorafshan, Sattar   +2 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

EFFECT OF PRESTRESSED FORCE AND SIZE OF REINFORCEMENT ON CORROSION CRACK WIDTH IN CONCRETE MEMBER [PDF]

open access: yesJournal of Engineering Science and Technology, 2017
One of the main factors which terminate service life of concrete structure in corrosive environment is corrosion attack. Rust expansion of corroded reinforcement in concrete causes corrosion crack.
AGUS MARYOTO, TAKUMI SHIMOMURA
doaj  

Correlating and predicting the air infiltration through the cracks of suspended timber floors [PDF]

open access: yes, 2001
This paper shows that the visible gap length may be used as a physical parameter when correlating pressure difference to volume flow rate (or air velocity) through the cracks between floorboards and can be termed the Equivalent Crack Length.
Lai, E, McGrath, PT
core   +1 more source

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