Damage modelling in concrete subject to sulfate attack [PDF]
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
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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
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
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]
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]
Póster; ALBA User Meeting and VI AUSE ...
Cuesta-Garcia, Ana Maria +4 more
core
Rheological and hydration characterization of calcium sulfoaluminate cement pastes [PDF]
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
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The comparison between sulfate salt weathering of portland cement paste and calcium sulfoaluminate cement paste [PDF]
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]
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]
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
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