Results 31 to 40 of about 675,668 (253)

Experimental investigation of frost induced damage of cement mortar [PDF]

MATEC Web of Conferences, 2019
Questions connected to influence of frost degradation on microstructure and physical properties of water saturated cement mortars and their resistance to cyclic water freezing are the objectives of research.
Wieczorek Alicja, Koniorczyk Marcin, Grabowska Kalina   +2 more
doaj   +1 more source

Functionalization of the Fine Al2O3 Abrasive by the Polyacrylamide Deposition

Medžiagotyra, 2021
In order to enhance the dispersion stability of ultra-fine Al2O3 powder in aqueous media, the alumina particles were modified with silane coupling agent KH570 at first, and then 2,2'-Azobis(2-amidinopropane) dihydrochloride (AIBA) was anchored onto the ...
Pengfei MA, Xiao XIAO, Yuxin GAO, Wen YANG, Baojun CHENG, Ping ZHANG   +5 more
doaj   +1 more source

Inspecting the corrosion state of underground reinforced concrete structures

Journal of Infrastructure Preservation and Resilience, 2022
Unnoticed corrosion in underground reinforced concrete structural members – such as foundations, retaining walls, or piles – may severely threaten the integrity of structures.
Patrick Pfändler, Lukas Bircher, Ueli Angst   +2 more
doaj   +1 more source

Characteristics of Silicon Dioxide Particles in PCVD Synthesizing Silica Glass Process

Journal of Nanotechnology, 2016
SiO2 nanoparticles in PCVD process were investigated by SEM, TEM, and optical emission spectra (OES). There are large spherical SiO2 particles with diameter of 50–200 nm and more small particles about 10–50 nm in PCVD process.
Yuancheng Sun, Xuefu Song, Xiurong Du, Xiaoqiang Zhang, Hui Wang   +4 more
doaj   +1 more source

Thermal mass and thermal comfort in offices – experimental studies of a concrete floor [PDF]

MATEC Web of Conferences, 2019
Previous studies demonstrated that the use of thermal mass in buildings can contribute to reduce the energy demand and improve the thermal comfort.
Grynning Steinar, Nocente Alessandro, Gullbrekken Lars, Skjeggerud Kjell   +3 more
doaj   +1 more source

Building with renewable materials

at - Automatisierungstechnik
Abstract Research into sustainable construction is increasingly focusing on the use of renewable materials in construction. These materials represent a promising alternative to conventional building materials as they are derived from renewable sources and are usually more environmentally friendly in terms of production, transport and end-
Azra Korjenic, Florian Teichmann
openaire   +1 more source

Effects of silicafume and fly ash on properties of alumina cement

MATEC Web of Conferences, 2018
Alumina cement which was used in this investigation contains about 56% of Al2O3 in the component. Early compressive strength alumina cement at 1 and 3 days can be achieved of 85% compressive strength value at 28 days.
Luu Thi Hong, Luong Duc Long, Trinh Thi Cham, Ta Van Luan, Duong Thanh Qui   +4 more
doaj   +1 more source

Chitosan as a carbonation catalyst in lime mortars

Results in Engineering, 2023
The investigation evaluates the influence of unmodified chitosan on the carbonation behavior of aerial lime mortars, determining the main properties in hardened state.
Marisa Carmona-Carmona, Patricia Acedo-Fuentes, Antonio Romero-Casado, Juan-Miguel Meneses-Rodríguez, Mario Trujillo-Gómez, Juan-José Tejado-Ramos   +5 more
doaj   +1 more source

Nano-mechanical characterization of the wood cell wall by AFM studies: comparison between AC- and QI™ mode

Plant Methods, 2017
Background Understanding the arrangement and mechanical properties of wood polymers within the plant cell wall is the basis for unravelling its underlying structure–property relationships.
Kirstin Casdorff, Tobias Keplinger, Ingo Burgert   +2 more
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source