Results 31 to 40 of about 30,775 (309)

Experimental Observation on Variation of Rheological Properties during Concrete Pumping

open access: yesInternational Journal of Concrete Structures and Materials, 2018
Workability of concrete varies during pumping. Even though concrete satisfies the required workability before pumping, it often does not satisfy the required standard after pumping. Moreover, serious problem could happen such as segregation and blockage.
Kyong Pil Jang   +5 more
doaj   +1 more source

MANUFACTURING GREEN CEMENTING MATERIAL [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
Construction and Demolition ( C&D ) waste constitutes a major portion of total solid waste production in the world. The main purpose of this research is to study the effect of addition of waste Yellow Clay brick powder (CBP) on the behavior of cement ...
Mohammed Moslah Salman   +1 more
doaj   +1 more source

Effect of Plant Fiber on Early Properties of Geopolymer

open access: yesMolecules, 2023
Geopolymer (GP) is environmentally friendly, has good mechanical properties and long-term workability, and has broad application prospects. However, due to the poor tensile strength and toughness of GPs, they are sensitive to microcracks, which limits ...
Chun Lv   +6 more
doaj   +1 more source

Steel Fiber Concrete Mixture Workability

open access: yes, 2016
The article provides an overview of existing parameters of concrete mixture workability estimates for steel fiber concrete. The study shows that the standard concrete workability parameters such as mobility, stiffness, spread, viscosity may not be used ...
Pikus, G.A.
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Effects of Superplasticizer and Water–Binder Ratio on Mechanical Properties of One-Part Alkali-Activated Geopolymer Concrete

open access: yesBuildings, 2023
This study presents an investigation of the mix proportion and mechanical properties of one-part alkali-activated geopolymer concrete (GPC). The procedure for determining the mix proportion of one-part alkali-activated GPC, which uses a solid alkali ...
Thanh-Tung Pham   +4 more
doaj   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Multisite Pain and Reduce Workability in College Students

open access: yes, 2022
Background: Multisite pain includes discomfort or strain in the neck, shoulder, low back, or other parts of the body. It is one of the most serious health issues affecting both adults and kids.
Sahiba, S. (Sahiba)   +3 more
core   +2 more sources

Workability among migrant diabetic workers: An occupational health-clinic-based study, Kuwait.

open access: yesPLOS Global Public Health
Diabetes Mellitus (DM) can influence physical and mental health, and workability can be affected by how well workers can manage the disease. So, the aim was to assess workability and identify factors associated with decreased workability among migrant ...
Sarah A Bolbol   +4 more
doaj   +1 more source

Measuring Workability of High-Fines Concrete

open access: yes, 2005
"The workability of fresh concrete has traditionally been evaluated with the slump test, which provides an inadequate indication of this important parameter... The need for a better test method for workability is well established within the concrete
International Center for Aggregates Research
core   +1 more source

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