Results 21 to 30 of about 3,407 (255)

Effects of biochar on desiccation cracking characteristics of different soils and their mechanism

Yantu gongcheng xuebao, 2023
In nature, the desiccation cracking of soils caused by water evaporation and shrinkage may lead to various engineering geological problems. The addition of biochar into the soil can effectively change its desiccation cracking characteristics.
WANG Xiang , GU Kai , ZHANG Yuping , LU Yu , TANG Chaosheng , SHEN Zhengtao , SHI Bin
doaj   +1 more source

Evaluation of the Addition of Polypropylene (PP) Fibers in Self-compacting Concrete (SCC) to Control Cracking and Plastic Shrinkage Between Different Methods [PDF]

Materials Research, 2023
The present work aims to contribute to the study and development of methodologies for shrinkage tests of self-compacting concrete (SCC) using the addition of polypropylene (PP) microfibers as a variable to validate the correlations between the shrinkage ...
Jonatha Roberto Pereira, João Batista Lamari Palma e Silva, Luísa Andréia Gachet, Antonio Carlos dos Santos, Rosa Cristina Cecche Lintz   +4 more
doaj   +1 more source

Effects of Fly Ash Dosage on Shrinkage, Crack Resistance and Fractal Characteristics of Face Slab Concrete

Fractal and Fractional, 2022
The crack resistance of face slab concretes to various shrinkages is crucial for the structural integrity and the normal operation of concrete-faced rockfill dams (CFRDs). In this work, the effects of fly ash with four dosages (i.e., 10%, 20%, 30% and 40%
Lei Wang, Zhiqiang Yu, Bo Liu, Feng Zhao, Shengwen Tang, Minmin Jin   +5 more
doaj   +1 more source

Modeling the Influence of Environmental Factors on Concrete Evaporation Rate [PDF]

Journal of Soft Computing in Civil Engineering, 2020
Newly poured concrete opposing hot and windy conditions is considerably susceptible to plastic shrinkage cracking. Crack-free concrete structures are essential in ensuring high level of durability and functionality as cracks allow harmful instances or ...
Vasileios Papadimitropoulos, Panagiotis Tsikas, Athanasios Chassiakos   +2 more
doaj   +1 more source

Plastic Shrinkage Cracking of Limestone Calcined Clay Cement Concrete in Normal and Extreme Climates: Influence of Superplasticiser

Advances in Civil Engineering
Limestone calcined clay cement (LC3) has emerged as a promising low-carbon alternative to ordinary Portland cement (OPC). However, its early-age cracking, particularly plastic shrinkage cracking, remains underexplored. This study investigates the plastic
Idris Mayowa Abdrafiu, Adewumi John Babafemi, Riaan Combrinck   +2 more
doaj   +1 more source

Influence of Polypropylene Fiber on Plastic Shrinkage Cracks of Concrete

Journal of Engineering Research (Libya), 2021
تشققات الإنكماش اللدن تسرع من عملية تغلغل المواد الضارة داخل الخرسانة وبالتالي فان العمر الخدمي للمنشآت الخرسانية المسلحة في هذه الحالة يكون قصير. أحد الطرق الفعالة للتقليل من التشققات في الخرسانة هو التسليح بالألياف. الهدف الرئيسي من هذه الدراسة المعملية هو للتحقق من تأثير إضافة ألياف البولي بروبلين (0، 0.01، 0.025 ،0.1 % من حجم الخرسانة) على سلوك ...
Ashraf Abdalkader, Omer Elzaroug
openaire   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Use of supplementary cementitious materials (SCMs) in reinforced concrete systems – Benefits and limitations

Revista ALCONPAT, 2020
About a decade of research carried out at IIT Madras on cementitious systems has shown that the partial replacement of portland cement with supplementary cementitious materials (SCMs) has benefits as well as limitations.
Radhakrishna G. Pillai, Ravindra Gettu , Manu Santhanam   +2 more
doaj   +1 more source

Shrinkage and mechanical properties of drying oil paints

Heritage Science, 2022
Understanding how the evolving molecular composition of an oil paint layer on its transition to an aged solid film affects its dimensional change and mechanical properties is fundamental to the assessment of material durability and more broadly risk of ...
Arkadiusz Janas, Marion F. Mecklenburg, Laura Fuster-López, Roman Kozłowski, Patrick Kékicheff, Damien Favier, Cecil Krarup Andersen, Mikkel Scharff, Łukasz Bratasz   +8 more
doaj   +1 more source

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

Advanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim, Li Meng, Ahmad R. Najafi, Nicolas J. Alvarez   +3 more
wiley   +1 more source