Results 101 to 110 of about 15,071 (234)

Damage modelling in concrete subject to sulfate attack [PDF]

open access: yes, 2014
In this paper, we consider the mechanical effect of the sulfate attack on concrete. The durability analysis of concrete structures in contact to external sulfate solutions requires the definition of a proper diffusion-reaction model, for the ...
C. Comi, N. Cefis
core   +2 more sources

Effect of citric acid and the hemihydrate amount on the properties of a calcium sulphoaluminate cement

open access: yesMateriales de Construccion, 2014
The influence of citric acid on the hydration and strength development of a calcium sulphoaluminate cement was investigated. Cement pastes were prepared by mixing calcium sulphoaluminate (C4A3Ŝ) with 15, 20 and 25wt% of hemihydrate (CŜH0.5).
G. Velazco   +4 more
doaj   +1 more source

Influence of limestone filler and of the size of the aggregates on DEF

open access: yes, 2016
This experimental study aims to determine the effect of limestone filler on concrete expansion due to delayed ettringite formation (DEF). Different mortars made with different sizes and percentages of limestone filler and Portland cement CEM I 52.5N are ...
Colliat, JB   +5 more
core   +3 more sources

Structure and mineral composition of soil-cement with complex additive

open access: yesИнженерно-строительный журнал, 2018
The effect of the polycarboxylate ether and the complex hydrophobic-plasticizing additive on the structure, phase and mineral composition of cement based on polymineral clay with content of relict minerals more than 85 % (52.49 % of quartz) was studied ...
Pavel Bulanov   +2 more
doaj   +1 more source

In-situ hydration study of sulfobelite eco-cements [PDF]

open access: yes, 2013
ALBA User Meeting and VI AUSE ...
Cuesta-Garcia, Ana Maria   +8 more
core  

In-situ hydration studies of ye’elemite at early ages for understanding eco-cement performances' [PDF]

open access: yes, 2013
Póster; ALBA User Meeting and VI AUSE ...
Cuesta-Garcia, Ana Maria   +4 more
core  

Rheological and hydration characterization of calcium sulfoaluminate cement pastes [PDF]

open access: yes, 2015
Calcium sulfoaluminate (CSA) cements are currently receiving a lot of attention because their manufacture produces less CO2 than ordinary Portland cement (OPC).
García-Aranda, Miguel Ángel   +4 more
core   +1 more source

The comparison between sulfate salt weathering of portland cement paste and calcium sulfoaluminate cement paste [PDF]

open access: yes, 2015
In this paper, the damage performances of sulfate salt weathering of Portland cement paste and calcium sulfoaluminate (CSA) cement paste were compared according to authors' previous studies.
De Schutter, Geert   +2 more
core  

Development of durable “green” concrete exposed to deicing chemicals via synergistic use of locally available recycled materials and multi-scale modifiers [PDF]

open access: yes, 2018
From the economic and social perspectives, the use of waste materials would not be attractive until their costs and quality can satisfy the construction requirements.
Cui, Na, Xie, Ning
core  

3D-Mesomechanical analysis of external sulfate attack in concrete [PDF]

open access: yes, 2017
The present study focuses on degradation of concrete by external sulfate attack. The numerical model developed by the MECMAT/UPC group, incorporates coupled C-M analysis using a meso-mechanical approach with discrete cracking, using the MEF and zero ...
Carol, Ignacio   +3 more
core  

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