Results 291 to 300 of about 147,317 (357)

Morphological properties of bone cement mixed with antibiotics. [PDF]

Rom J Morphol Embryol
Popovska D, Boev I, Ristova Delipetrev M, Andonovski A, Stojmenski S.   +4 more
europepmc   +1 more source

Detection and Location of Defects in Externally Bonded FRP Concrete Structures-Comparison of Selected Methods. [PDF]

Materials (Basel)
Tworzewski P, Bacharz K, Wciślik W, Teodorczyk M, Wciślik S, Tworzewska J.   +5 more
europepmc   +1 more source

A prototype for producing oxygen-rich air using novel magnetic separation cell and magnetic mixed poly(etheresulfone) matrix membranes. [PDF]

Sci Rep
Nady N, Rashad N, Elmarghany MR, Salem MS, Salem N, Kandil SH.   +5 more
europepmc   +1 more source

Air void clustering in retempering concrete and its contribution to compressive strength

, 2019
Wen Sun
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Ettringite Deposits in Air Voids

Transportation Research Record: Journal of the Transportation Research Board, 2004
Investigations of pavements suffering from freeze-thaw damage in the presence of deicing salts have found significant deposits of ettringite in the air voids. Concern has been expressed that the deposition of ettringite in air voids reduces their effectiveness in protecting the concrete.
Rachel J. Detwiler, Peter C. Taylor, Laura J. Powers   +2 more
openaire   +1 more source

Piezoelectricity in multi-air voids electrets

CEIDP '05. 2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2005., 2005
Multi-air voids space-charge electrets have been developed using two fluorethylenepropylene (Teflon-FEP) films. In this work, a new technique developed to assembler these films allows the control of the thickness and shapes of multi-air voids distributed on their surface.
R.A.C. Altafim, H.C. Basso, L. Goncalves Neto, L. Lima, R.A.P. Altafim, C.V. de Aquino   +5 more
openaire   +1 more source

Air‐void characterisation of foam concrete

Cement and Concrete Research, 2007
Abstract The pore structure of cementitious material, predetermined by its porosity, permeability and pore size distribution, is a very important characteristic as it influence the properties of the material such as strength and durability. The pore parameter could therefore be a primary factor influencing the material properties of foam concrete and
E.K. Kunhanandan Nambiar, K. Ramamurthy
openaire   +1 more source

Study of air void topology of asphalt with focus on air void constrictions – a review and research approach

Road Materials and Pavement Design, 2021
The aim of this paper is to show the complexity of studying air void topology by giving an in-depth literature review.
Barbara Schuck, Tim Teutsch, Stefan Alber, Wolfram Ressel, Holger Steeb, Matthias Ruf   +5 more
openaire   +1 more source

Characterisation of air-void systems in concrete

Magazine of Concrete Research, 2016
The air-void system in both fresh and hardened states for different concrete mixes was measured and characterised using the methods presented in ASTM C231 and ASTM C457 respectively. The mix variables included two water/binder (w/b) ratios (0·33 and 0·45), one replacement level of Portland cement with slag cement (50%) and a range of air contents ...
Zhichao Liu, Will Hansen, Bo Meng
openaire   +1 more source