Results 91 to 100 of about 143,196 (301)

Properties of mortar and concrete containing fine sand contaminated with light crude oil [PDF]

, 2016
Sand contaminated with crude oil has become a major environmental concern worldwide. This problem poses threats to human health, the ecosystem, and the properties of the surrounding sand. Due to the prohibiting cost of the existing remediation methods, a
Abousnina, Rajab Mohamed B.
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Bond performance of fly ash-based geopolymer mortar in simulated concrete sewer substrate [PDF]

Geopolymers have been extensively explored as a promising repair material for deteriorated Ordinary Portland Cement (OPC) concrete elements. However, knowledge of the adhesion performance of geopolymer to concrete substrates is limited.
Gerdes, Andreas, Lokuge, Weena, Aravinthan, Vasantha, Manalo, Allan C., Pasupathy, Kiru, Ariyadasa, Piumika W.   +5 more
core   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Displacive In‐Plane Ferroelectricity with Domain‐Specific Curie Temperature in Van der Waals Semiconductors

Advanced Science, EarlyView.
Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Peter Sutter, Eli Sutter
wiley   +1 more source

Impact of Fiber Mortar Plaster Layer on Masonry Shearing Strength

工程科学与技术, 2015
:Seismic performances of hollow brick infills with or without mortar plaster layer were investigated base on the field reconnaissance following 2008 Wenchuan Earthquake or the 2013 Lushan Earthquake。Decades of mortar specimens with different type of ...
liu xing dong, 李碧雄, 彭娟, mo si te   +3 more
doaj  

Performance evaluation of eggshell ash in high volume rice husk ash cement mortar: Pore refinement, early strength gain, durability performances and machine learning application

Next Sustainability
High volume of rice husk ash, as a cement replacement in mortar poses performance challenges but deserves attention to support the circular economy. This research evaluates the performance of eggshell ash (ESA) in high-volume RHA-mortar, focusing on pore
G.H.M.J.Subashi De Silva, A. Thanushapavan, Ruwini Edirisinghe   +2 more
doaj   +1 more source

Potencialidades da metacaolinita e do tijolo queimado moído como substitutos parciais do cimento Portland Potentialities of metakaolin and crushed waste calcined clay brick as partial replacement of Portland cement

Revista Brasileira de Engenharia Agrícola e Ambiental, 2000
Avalia-se, neste trabalho, a potencialidade do uso da metacaolinita e dos resíduos de produção de tijolos cerâmicos queimados finamente moídos, como substitutos parciais do cimento Portland.
João de Farias Filho, Joselma Santos Rolim, Romildo Dias Toledo Filho   +2 more
doaj   +1 more source

Mortar Board Society, Maia Chapter, 1941, University of New Mexico

, 1941
Members of the Mortar Board Society, Maia Chapter, University of New Mexico, 1941. From the Co-Ed Code 1941-1942, p. 18. Left to right: Ruth Bebber; Norma Jean Wortman; Eileen Ballard; Wilna Gillespie, President; Juanita Nolan; Marilyn Morrow; Ann Light;
Mortar Board Society
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Oil Palm Shell Ash - Cement Mortar Mixture and Modification of Mechanical Properties

, 2014
The waste agriculture materials cause environment pollution, recycle of these materials help sustainable development. This study focused on the impact of used oil palm shell ash on the compressive and flexural strengths of cement mortar.
Namdar, Abdoullah, Fadzil, Mat Yahaya, Fadzil Mat Yahaya, Abdoullah Namdar   +3 more
core   +1 more source

Diversity of Pharmaceuticals Enhances Antibiotic Resistance in the Invertebrate Gut via Biofilm‐Mediated Mechanisms

Advanced Science, EarlyView.
Pharmaceutical diversity acts as an independent driver of antibiotic resistance in soil invertebrates. While bulk soil remains unaffected, the collembolan gut microbiome exhibits significant resistance gene enrichment under complex chemical exposure and diurnal warming.
Yi‐Fei Wang, Ya‐Ning Wang, Da Lin, Jia‐Yang Xu, Feng‐Yuan Qi, Hui‐Ling Cui, Hui‐Jie Lu, Min Qiao, Edward Topp, Dong Zhu, Matthias C. Rillig, Yong‐Guan Zhu   +11 more
wiley   +1 more source