Publicacións

@article{martinez-garcia_effects_2020,

title = {Effects of mussel shell aggregates on hygric behaviour of air lime mortar at different ages},

author = {Carolina Martínez-García and Belén González-Fonteboa and Diego Carro-López and Fernando Martínez-Abella},

url = {https://www.sciencedirect.com/science/article/pii/S0950061820311181},

doi = {10.1016/j.conbuildmat.2020.119113},

issn = {0950-0618},

year  = {2020},

date = {2020-08-01},

urldate = {2026-08-06},

journal = {Construction and Building Materials},

volume = {252},

pages = {119113},

abstract = {Mussel shells, composed of calcium carbonate (>95%) and organic matter, are suitable alternatives to conventional sand in mortar. In addition, the use of lime instead of cement as a binder has also been considered for sustainable construction materials as well as in restorative applications. This study aims to contribute to the knowledge of air lime mortar through the analysis of the water transport properties of air lime mortar produced with mussel shell aggregates at different ages. Four mortar groups were obtained from the reference mortar by replacing limestone sand with mussel shell sand at substitution rates of 25%, 50%, and 75%. Water absorption, capillary uptake, weight variation, and drying from the fresh state up till one and two years were determined. The organic matter content and flaky seashell shape are responsible for the main differences observed between the mussel mortars and reference mortar. These two characteristics promote transport tortuosity paths and hydrophobic behaviour leading to reduced capillary uptake and increased drying resistance index. Furthermore, they enhance water retention, which increases the carbonation rate.},

keywords = {Capillarity uptake, Coating mortars, Drying index, Tortuosity, Water absorption},

pubstate = {published},

tppubtype = {article}

}

@article{di_mundo_masonry_2020,

title = {Masonry and render mortars with tyre rubber as aggregate: Fresh state rheology and hardened state performances},

author = {Rosa Di Mundo and Sindy Seara-Paz and Belén González-Fonteboa and Michele Notarnicola},

url = {https://www.sciencedirect.com/science/article/pii/S0950061820303640},

doi = {10.1016/j.conbuildmat.2020.118359},

issn = {0950-0618},

year  = {2020},

date = {2020-06-01},

urldate = {2026-08-06},

journal = {Construction and Building Materials},

volume = {245},

pages = {118359},

abstract = {This work shows how it is possible to tailor cement-rubber composites suitable as renders and masonry mortars with a reduced liquid water absorption. Recycled tyre rubber is used as aggregate in mixture with siliceous sand and its content is tuned in order to limit depletion of mechanical properties and, at the same time, ensure a sufficiently massive utilization of this secondary raw material. An extended investigation of the properties both at the fresh and hardened state is conducted. We show that presence of rubber sensitively reduces fluidity (hence workability) of the mortar. In particular, rubber modifies rheological properties such as thixotropy and dynamic torque, while does not affect viscosity. Overall, the fresh state properties are compatible with the casting and application of these mortar typologies, even for the highest rubber content (20–25% by volume). This rubber content is shown to be sufficient to ensure, just after few days of curing, an almost complete abatement of water drop absorption, specific functionality of these novel and more sustainable mortars.},

keywords = {Hydrophobic, Masonry mortar, Plasters/renders, Recycled tyre rubber, Rheology, Thixotropy, Viscosity, Water absorption, Water contact angle, Workability},

pubstate = {published},

tppubtype = {article}

}

@article{González-Taboada20171,

title = {Tools for the study of self-compacting recycled concrete fresh behaviour: Workability and rheology},

author = {Iris González-Taboada and Belén González-Fonteboa and Javier Eiras-López and Gemma Rojo-López},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019157098&doi=10.1016%2fj.jclepro.2017.04.045&partnerID=40&md5=dc483461bc80b8981beee59d6b2ab36b},

doi = {10.1016/j.jclepro.2017.04.045},

year  = {2017},

date = {2017-01-01},

urldate = {2017-01-01},

journal = {Journal of Cleaner Production},

volume = {156},

pages = {1 – 18},

abstract = {This work studies the fresh behaviour of self-compacting recycled concrete (SCRC) with different replacement percentages of recycled concrete coarse aggregate (20, 50 and 100%). To control the high absorption of recycled aggregate, three different mixing methods are also used in each studied concrete: M1 (dry aggregate and extra water), M2 (pre-soaked aggregate) and M3 (aggregate with a 3% of natural moisture and extra water). The fresh-state properties are measured with empirical and rheological tests, both carried out at 15, 45 and 90 min from the water-cement contact. Results obtained lead to conclude that rheology is the best tool to control fresh state behaviour of SCRC mixes and that Bingham 5-lowest is the suitable model to describe their rheological behaviour. Additionally, it has been concluded that the best method to produce SCRC is to compensate the recycled aggregate absorption during mixing using an extra quantity of water. With this method, self-compacting behaviour can be maintained with all replacement percentages until 45 min, and even until 90 min when the replacement ratio does not exceed 50%. Moreover, the use of the recycled coarse aggregate with a previous moisture content involves a greater difficulty to control workability and rheology than its use in dry-state condition. © 2017 Elsevier Ltd},

note = {Cited by: 88},

keywords = {Aggregates, Concrete mixing, Concretes, Elasticity, Fresh behaviour, Mechanical properties, Mixing, Moisture, Recycled aggregates, Recycled coarse aggregate, Recycled concrete coarse aggregate, Recycled concretes, Recycling, Replacement ratio, Rheological behaviour, Rheology, Self compacting concrete, Water absorption, Workability},

pubstate = {published},

tppubtype = {article}

}