Results 141 to 150 of about 127,520 (303)

Performance enhancement of reinforced concrete columns using stainless steel and galvanized steel plates: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract This study introduces an innovative approach to strengthening defected reinforced concrete (RC) columns using externally bonded stainless steel and galvanized steel plates. Unlike conventional strengthening methods, this technique replaces traditional transverse stirrups with steel sheets, providing enhanced confinement and ductility.
Ahmed Hamoda, Khaled Sennah, Ramy I. Shahin, Aref A. Abadel, Mizan Ahmed, Mohamed Ghalla   +5 more
wiley   +1 more source

Research on optimization design of high-performance manufactured sand concrete material composition in seasonal frozen areas

Frontiers in Materials
To address the issues of shrinkage cracking and durability in manufactured sand concrete in seasonally frozen regions, silica fume, fly ash, and superabsorbent polymer (SAP) were selected to prepare high-performance manufactured sand concrete. This study
Chuan Huang, Junxian Zhu, Hongliu Rong, Xiaolong Yang   +3 more
doaj   +1 more source

The Effect of use the Silica Sand

Tikrit Journal of Engineering Sciences, 2013
This research includes study the effects of use the silica sand at different rates and comparison some characteristics with other concrete mixture contains ordinary sand to investigate the effect on some mechanical properties of concrete such as compressive strength, density absorption and flexural strength after (3, 7, 14 and 28) days for four ...
Nahla N. Helal, Aseel Husam Al Din, Majeed M. Al Dulaemi   +2 more
openaire   +1 more source

Enhancing durability of steam‐cured precast concrete culverts using SCMs: A comparative study with delithiated beta spodumene

Structural Concrete, EarlyView.
Abstract Steam curing is commonly used to manufacture precast culverts to accelerate early strength development. This study investigates the effect of supplementary cementitious materials (SCMs) on the permeability properties of steam‐cured precast concrete culverts.
Saugat Humagain, Prabir Kumar Sarker, Faiz Uddin Ahmed Shaikh, Daksh Baweja   +3 more
wiley   +1 more source

Explainable artificial intelligence (XAI)‐powered design framework for lightweight strain‐hardening ultra‐high‐performance composites (SH‐UHPC)

Structural Concrete, EarlyView.
Abstract Lightweight strain‐hardening ultra‐high‐performance concrete composite (SH‐UHPC) is an outstanding alternative for engineering applications and infrastructure thanks to its outstanding strength, toughness, ductility, and low density. The integration of artificial intelligence (AI)‐based modeling strategies into engineering problems can ...
Metin Katlav, Kazim Turk
wiley   +1 more source

Experimental evaluation of mechanical strength of silica fume-cemented sand reinforced with 3D-printed fibers

Journal of Materials Research and Technology
3D printing has revolutionized building design and construction with rapid, cost-effective production of complex designs approaches. Cementitious materials have low mechanical properties and ductility, and may not be an ideal choice for a sustainable ...
Mohammad Hematibahar, Nikolai Vatin, Jana Petrů, Muhammad Nasir Bashir, Ali Hasanzadeh, Tesfaldet Gebre, Amir Ali Milani, Amir Bakhtiyari   +7 more
doaj   +1 more source

Posidonia oceanica Leaves as a Natural Filler for Poly(Butylene Succinate‐Co‐Adipate) Composites: Characterization and Biodegradation Assessment in Seawater

Journal of Vinyl and Additive Technology, EarlyView.
This study shows that incorporating 5–10 wt.% Posidonia oceanica, with or without micro‐talc, in PBSA preserves thermal stability, modifying crystallization behavior, and maintains good filler dispersion and interfacial adhesion. Mechanical properties are moderately stiffened.
Chiara Pedrotti, Damiano Rossi, Giovanni Raimondi, Riccardo Gallorini, Miriam Cappello, Irene Anguillesi, Marco Sandroni, Patrizia Cinelli, Maurizia Seggiani   +8 more
wiley   +1 more source

Long‐term warming drives mineral‐associated organic carbon accumulation on the Tibetan Plateau

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Global warming affects both plant growth and soil microbial decomposition, creating uncertainty for the storage and persistence of soil organic carbon (SOC) stock. Limited decomposition rates often characterise cold alpine ecosystems.
Siyi Sun, Jiacong Zhou, Carsten W. Mueller, Manuel Delgado‐Baquerizo, Yixuan Zhang, Kees Jan van Groenigen, Andrew Nottingham, Wolfram Buss, Xin Chen, Sergio Velasco Ayuso, Jeppe Aagaard Kristensen, Ying Ma, Shuo Liu, Fabián Scholz, Wolfgang Wanek, Jørgen Eivind Olesen, Junji Cao, Ji Chen   +17 more
wiley   +1 more source

Fabrication of Bentonite-Silica Sand/Suspended Waste Palm Leaf Composite Membrane for Water Purification. [PDF]

Membranes (Basel), 2020
Aljlil SA.
europepmc   +1 more source

An Overlooked Habitat‐Dependent Link Between Metabolism and Water Loss in Reptiles

Integrative Zoology, EarlyView.
We measured the gas exchange of six lizard and six snake species, under high and low air humidity, and two intriguing patterns emerged. First, although desert species lose less water via evaporation than similar‐sized mesic species under similar conditions, water loss is virtually the same when each is exposed to its natural conditions.
Shahar Dubiner, Shai Meiri, Eran Levin
wiley   +1 more source