Results 91 to 100 of about 7,212 (303)

Effect of Aggregate Pre-Wetting and Air-Entraining Agent on Durability of Lightweight Aggregate Concrete

, 2011
Rapid carbonation test and gas permeability radio method are used to study the durability of lightweight aggregate concrete. The concrete includes foam,lightweight aggregate，pre-wetting and air entraining.
Wei Xia Zhao, Xiao Ning Yuan, Ping Yang, Min Chen, Juan Hong Liu   +4 more
core   +1 more source

Boosting Bifacial Output Power of Ag‐CIGS Solar Cells by Optimizing ITO Back‐Contact Thickness for Tandem Applications

Carbon Energy, EarlyView.
Optimized ITO back contact with pre‐Ga supply growth and Ag incorporation suppresses GaOx formation and interface recombination in bifacial CIGS solar cells. The devices achieve 17.25% front and 5.77% rear efficiency, delivering record bifacial power density up to 32.26 mW cm−2 in 4T perovskite/CIGS tandem architectures under enhanced albedo ...
Amanat Ali, Dae‐Ho Son, Wook Hyun Kim, Hyo Jeong Jo, Dong‐Hwan Jeon, Won‐Joon Kim, Van‐Quy Hoang, Jaebaek Lee, Bashiru Kadiri‐English, Jin‐Kyu Kang, Kee‐Jeong Yang, Shi‐Joon Sung, Dae‐Kue Hwang, Dae‐Hwan Kim   +13 more
wiley   +1 more source

Fresh and Mechanical Properties of Lightweight Aggregate Concrete with Scrap Steel Fiber Reinforcement and Bagasse Ash

Journal of Materials and Engineering Structures
A sustainable concrete solution was developed by partially replacing aggregates and cement with lightweight plastic aggregates (LWPA) and bagasse ash, respectively.
Vijayalakshmi RAMALINGAM, A. KEERTHANA, A. KRISHNA SREE, J. LAVANYA, L. THITHIKSHA, S. DAKSHETHA   +5 more
doaj  

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Assessment of the fractured state of fire-damaged concrete.

, 1996
PhDThis thesis reports on an experimental research programme into developing a new quantitative method, based on the Stiffness Damage Test (SDT), to be used in assessing fire-damaged concrete.
Nassif, A.Y., Nassif, Ayman Youssef
core  

Fire-resistance property of reinforced lightweight aggregate concrete wall

, 2014
This research focuses on reinforced lightweight aggregate concrete walls. After performing a standard temperature rising fire-resistance test, the fire resistance performance and mechanic behavior of the wall sample are studied under a lateral horizontal
Chi, J.H., Chen, C.T., Tang, J.R., Go, C.G., Huang, Y.L.   +4 more
core   +1 more source

Evaluating Seismic Resistance and Energy Dissipation of CFRP‐Reinforced Concrete Frames Under Monotonic Loading

Earthquake Engineering and Resilience, EarlyView.
“It was found that good ductility can be achieved in CFRP‐strengthened frames, and this result was validated through experimental testing.” ABSTRACT Reinforced concrete structures are increasingly vulnerable to deterioration by steel reinforcement corrosion, resulting in severe loss of fracture strength and service life, particularly in severe ...
Moab Maidi, Gili Lifshits Sherzer, Erez Gal   +2 more
wiley   +1 more source

Application of Opalized Tuff as an Aggregate in Lightweight Concrete

Sustainability
Lightweight concretes have gained great momentum in construction in the last decade, due to the large number of sustainable characteristics and construction advantages associated with them. The sustainability of lightweight concrete depends mainly on the application of sustainable aggregates, such as the amorphous opalized tuff, found in large ...
Todorka Samardzioska, Dimitar Goshev, Slobodan B. Mickovski   +2 more
openaire   +2 more sources

A Novel Multilevel Conceptual Framework for Flood Risk Governance

Environmental Policy and Governance, EarlyView.
ABSTRACT Globally, flood risk is increasing as climate change progresses. Contemporary flood risk management practice often utilises hydrodynamic modelling (for hazard risk assessments), social vulnerability assessments, and risk communications in silo, which fragments evidence‐based decision‐making for effective flood risk management. We hence develop
Aiperi Stambekova, Avidesh Seenath
wiley   +1 more source

Experimental Study on the Mechanical Properties and Microstructural Characteristics of Pumice Concrete Reinforced with Nanocomposite Materials

Buildings
Natural pumice can reduce the self-weight of concrete, but its high porosity, high water absorption, and weak interfacial bonding tend to limit the strength and durability of lightweight aggregate concrete.
Ruiyan Qin, Hailong Wang, Mingwei Fang
doaj   +1 more source