Results 221 to 230 of about 94,135 (258)

Carbonation Rate of Alkali-Activated Concretes: Effects of Compositional Parameters and Carbonation Conditions

2023
Materials and ...
Gregor J. G. Gluth, Xinyuan Ke, Anya Vollpracht, Lia Weiler, Susan A. Bernal, Martin Cyr, Katja Dombrowski-Daube, Dan Geddes, Cyrill Grengg, Cassandre Le Galliard, Marija Nedeljkovic, John L. Provis, Luca Valentini, Brant Walkley   +13 more
openaire   +3 more sources

Behavior of concrete columns confined by carbon composite tubes

Canadian Journal of Civil Engineering, 2004
The carbon composite tube can play an important role in replacing or complementing longitudinal and transverse reinforcing steels by providing ductility and strength for conventional columns. In this study, both experimental and analytical investigations of axial behavior of large-scale circular and square concrete columns confined by carbon composite
Won-Kee Hong, Hee-Cheul Kim
openaire   +1 more source

Oxygen and Carbon Isotopic Composition of Marine Carbonate Concretions: An Overview

SEPM Journal of Sedimentary Research, 1993
ABSTRACT Compilation of stable isotope data (18O and 13C) for marine calcite, siderite, and dolomite concretions from a large number of studies reveals consistent and unanticipated isotopic trends. Although many of the dolomites have 18O values that are compatible with precipitation from unaltered seawater at low temperatures, most of the calcites and ...
openaire   +1 more source

Self-sensing GFRP-reinforced concrete beams containing carbon nanotube-nano carbon black composite fillers

Measurement Science and Technology, 2023
Abstract This study investigated the self-sensing behavior of nonconductive glass fiber reinforced polymer (GFRP) reinforced concrete beam incorporated with electrostatic self-assembly carbon nanotube-nano carbon black (CNT-NCB) composite fillers (CNCFs) under monotonic and cyclic flexural loadings.
Liangsheng Qiu, Siqi Ding, Danna Wang, Baoguo Han   +3 more
openaire   +1 more source

Towards Standardization: Testing and Design of Carbon Concrete Composites

2017
The standardization of testing methods and design approaches is one key to overcome barriers which interfere radical innovation in the AEC (Architectural, Engineering and Construction) industry. Currently, the radical innovative Carbon Concrete Composite, including textile reinforced concrete (TRC), embraces a widespread set of testing methods ...
Jan Bielak, Josef Hegger, Rostislav Chudoba   +2 more
openaire   +1 more source

Composite cements with aqueous and semi-dry carbonated recycled concrete pastes

Construction and Building Materials, 2023
Carbonation of recycled concrete paste (RCP) may reduce cement industry's CO2 emissions by sequestering CO2 and by using the carbonated material in new composite cements enabling a decrease in the clinker content. This study examines effects of wet and semi-dry carbonation of RCP on the hydration reactions and performance for composite cements ...
Maciej Zajac, Jiayi Song, Jan Skocek, Mohsen Ben Haha, Jørgen Skibsted   +4 more
openaire   +2 more sources

ADHESION EVALUATION IN CARBON FIBER AND CONCRETE MATRIX COMPOSITES

2013
In the present work the properties of fiber-cement interface were evaluated by using concrete specimens with carbon fiber.
Gerson Marinucci, Reinaldo Leonel Caratin   +1 more
openaire   +1 more source

Carbon nanotube/cement composites for crack monitoring of concrete structures

Composite Structures, 2017
Abstract The feasibility of using a carbon nanotube/cement composite as a crack sensor for concrete structures is evaluated. First, the relationship between the crack width and electrical conductivity of the composite material was investigated. Then, this analysis was repeated for the composite embedded in reinforced mortar beams, using three-point ...
Min-Ju Lim, Hyo Kyoung Lee, Il-Woo Nam, Hyeong-Ki Kim   +3 more
openaire   +1 more source

Bond strength of carbon fiber composites glued to concrete surface

Structural Concrete, 2017
This paper describes an analytical study about the bond between concrete and glued carbon fiber composites (CFCs) using data of 2 experimental researches. A total of 27 double compression‐tension tests were carried out on specimens with 2 concrete cubes (fixed and movable) connected by carbon fiber strips on opposite sides.
Emil de Souza Sánchez Filho, Júlio Jerônimo Holtz Silva Filho, Mayra Soares Pereira Lima Perlingeiro, Iporan de Figueiredo Guerrante   +3 more
openaire   +1 more source

Lateral behavior of full-scale concrete-filled carbon composite columns

Canadian Journal of Civil Engineering, 2004
Full scale concrete-filled carbon composite columns without longitudinal and transverse reinforcing steels are tested to investigate the lateral behavior of columns confined with carbon composite tubes. In the present study, the full-scale circular and square concrete-filled carbon composite tubes (CFCTs) with various winding angles with respect to ...
Won-Kee Hong, Hee-Cheul Kim, Suk-Han Yoon   +2 more
openaire   +1 more source