Results 71 to 80 of about 4,689 (231)

Bending Resistance and Failure Type Evaluation of Basalt Fiber RPC Beam Affected by Notch and Interfacial Damage Using Acoustic Emission

open access: yesApplied Sciences, 2020
Generally, reactive powder concrete (RPC) contains steel fibers often exposed to aggressive environments. Steel fibers in such RPCs are subjected to corrosion in-service, which can significantly change the mechanical properties of the structural ...
Hanbing Liu   +4 more
doaj   +1 more source

TRM‐to‐concrete interface bond without anchors: Combined experimental, analytical, and numerical modeling approach

open access: yesStructural Concrete, EarlyView.
Abstract Textile reinforced mortar (TRM) systems have emerged as an effective alternative to conventional FRP strengthening solutions due to their compatibility with concrete substrates and favorable performance under adverse environmental conditions.
Ömer Mercimek   +4 more
wiley   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

open access: yesStructural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci   +3 more
wiley   +1 more source

Study on the hybrid effect of chopped fiber and basalt fiber textile on the flexural behavior of two-way concrete slabs

open access: yesCase Studies in Construction Materials
This study systematically investigated the performance optimization of basalt-fiber textile reinforced concrete (BF-TRC), focusing on the reinforcing effects and synergistic mechanisms of varying layers and spacings of fiber textiles, as well as ...
Hu Chaobin   +6 more
doaj   +1 more source

Enhancement of Mechanical Properties, Drying Shrinkage and High Temperature Resistance of Geopolymer Mortar Containing Ground Granulated Blast Furnace Slag and Red Mud with Basalt Fiber [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی
The purpose of this research is to investigate the effect of adding basalt fibers on flowability, setting time, shrinkage and compressive and flexural strengths of geopolymer mortar cured at ambient temperature.
Malek Mohammad Ranjbar Taklymie   +1 more
doaj   +1 more source

Experimental studies on the dynamic viscoelastic properties of basalt fiber-reinforced asphalt mixtures

open access: yesScience and Engineering of Composite Materials, 2021
To study the influence of basalt fibers on the viscoelastic mechanical properties of asphalt concrete (AC) mixtures, unconfined compressive dynamic modulus tests were performed on styrene–butadiene–styrene (SBS)-modified AC mixtures reinforced with ...
Zhang Yongjun, Luo Wenbo, Liu Xiu
doaj   +1 more source

Development of method for boron determination in basalt fibers [PDF]

open access: yes, 2022
The main objective of the present thesis was to develop a method to determine the boron content of boron doped basalt fibers. Two types of samples were investigated: natural basalt powders doped with H3BO3 were used for method development and the ...
Mamun, Faisal-Al
core  

Lithic analysis in African archaeology: Advances and key themes

open access: yesArchaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski   +2 more
wiley   +1 more source

First study for production pre-Preg metallic matrix basalt composite materials

open access: yes, 2019
FIRST STUDY FOR PRODUCTION PRE-PREG METALLIC MATRIX BASALT COMPOSITE MATERIALS Marini D1,2, Lüking A3, Becker T3, Valente M1,2 1Department of Chemical Engineering, Material and Environment, University of Rome Sapienza; Italy 2National Interuniversity ...
Valente M.   +3 more
core  

Limited elephant impacts on baobabs despite increasing elephant densities in a newly established protected area

open access: yesConservation Science and Practice, EarlyView.
Researchers combined aerial and ground surveys to map baobab distribution and assess elephant herbivory impacts on baobabs across Karingani Game Reserve, Mozambique. Researchers found that aerial surveys were an effective tool for mapping baobabs and that baobabs were more likely to occur closer to permanent water, at lower elevations, and in areas ...
Audrey Y. Chin   +4 more
wiley   +1 more source

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