Assessment of air pollutant sources in the deposit on monuments by multivariate analysis

Ozga, Izabela; Ghedini, Nadia; Giosuè, Chiara; Sabbioni, C.; Tittarelli, Francesca; Bonazza, Alessandra

doi:10.1016/j.scitotenv.2014.05.084

Cited by 44 publications

(26 citation statements)

References 35 publications

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“…[5]. Indoor pollutants such as Volatile Organic Compounds (VOCs) and nitrogen oxides (NOx) are emitted by a great number of indoor sources e.g., floor coverings, paints, wood-based furnishings, and cleaning products, as well as cooking, combustion and tobacco smoking [6]. This may cause health problems such as drowsiness, headaches, sore throat, and mental fatigue [7].…”

Section: Introductionmentioning

confidence: 99%

Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers

et al. 2017

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In the current paper, the effect on Indoor Air Quality (IAQ) of two commercial acrylic-based paints were compared: one (Paint A) for indoor applications, the other (Paint B) for indoor/outdoor applications. Both were applied on an inert and on a real mortar substrate. The possibility of Paint B to passively improve IAQ was also investigated when adding highly porous adsorbent fillers, both as addition or as total replacement of a conventional siliceous one. The obtained results show that all paints have high capacity to inhibit biological growth. Paint A is more breathable and it has a higher moisture buffering capacity. Paint B negatively modifies the beneficial properties of the mortar substrate for IAQ. However, the use of unconventional fillers, especially as addition to the formulation, allows the recovery of the same properties of the substrate or even the enhancement of about 20% of the ability to adsorb volatile organic compounds (VOCs) under the current test conditions.

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Section: Introductionmentioning

confidence: 99%

Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers

et al. 2017

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“…For anion measurements, a cell volume of 100 µL, a tampon solution 3.5 mM of sodium carbonate/sodium bicarbonate as eluent and a flow rate of 1.20 mL/min were used. For cation detection, a cell volume of 25 µL, a solution of methanesulfonic acid 20 mM as eluent and a flow rate of 0.25 mL/min were used; as for anions, calibration curves were implemented by dilution starting by certified multistandard solutions containing: Li + , Na + , K + , NH 4 + , Ca 2+ , Mg 2+ .…”

Section: Determination Of the Water-soluble Salt Contenmentioning

confidence: 99%

“…Among the causes which determine damage of artworks and Cultural Heritage, air pollution plays an important role, due to the increase in gaseous and solid pollutants concentrations in urban areas [1,2] and, consequently, in museum environments [3,4]. In general, buildings, monuments and products with heritage value require minimal and careful interventions based on surveys and diagnostic studies to find compatible materials [5].…”

Section: Introductionmentioning

confidence: 99%

Geopolymer Composites for Potential Applications in Cultural Heritage

Ricciotti

Molino

Roviello³

et al. 2017

Environments

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Abstract:A new class of geopolymer composites, as materials alternative to traditional binders, was synthesized and its potentialities as restoration material in Cultural Heritage has been explored. This material has been prepared through a co-reticulation reaction in mild conditions of a metakaolin-based geopolymer inorganic matrix and a commercial epoxy resin. The freshly prepared slurry displays a consistency, workability and thixotropic behavior that make it suitable to be spread on different substrates in restoration, repair and reinforcement actions, even on walls and ceilings. Applicability and compatibility tests on tuff and concrete substrates were carried out and the microstructure of the samples in correspondence of the transition zone was analyzed by means of scanning electron microscope (SEM) observations and energy dispersive spectroscopy (EDS) mapping. Our studies pointed out the formation of a continuous phase between the geopolymer composite and tuff and concrete substrates, highlighting a high compatibility of the geopolymer binder with different kinds of materials. These features indicate a large potential for applications of these materials in Cultural Heritage.

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“…In fact, huge amounts of natural resources are consumed and large quantities of pollutants are generated [1], including CO 2 which originates from both fossil fuel combustion (about 40% of the total CO 2 emissions) and limestone thermal decomposition occurring during cement manufacture [2,3]. The production of one ton of cement clinker emits approximately 0.87 tons of CO 2 [4,5].…”

Section: Introductionmentioning

confidence: 99%

Calcium Sulfoaluminate, Geopolymeric, and Cementitious Mortars for Structural Applications

et al. 2017

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This paper deals with the study of calcium sulfoaluminate (CSA) and geopolymeric (GEO) binders as alternatives to ordinary Portland cement (OPC) for the production of more environmentally-friendly construction materials. For this reason, three types of mortar with the same mechanical strength class (R3 ≥ 25 MPa, according to EN 1504-3) were tested and compared; they were based on CSA cement, an alkaline activated coal fly ash, and OPC. Firstly, binder pastes were prepared and their hydration was studied by means of X-ray diffraction (XRD) and differential thermal-thermogravimetric (DT-TG) analyses. Afterwards, mortars were compared in terms of workability, dynamic modulus of elasticity, adhesion to red clay bricks, free and restrained drying shrinkage, water vapor permeability, capillary water absorption, and resistance to sulfate attack. DT-TG and XRD analyses evidenced the main reactive phases of the investigated binders involved in the hydration reactions. Moreover, the sulfoaluminate mortar showed the smallest free shrinkage and the highest restrained shrinkage, mainly due to its high dynamic modulus of elasticity. The pore size distribution of geopolymeric mortar was responsible for the lowest capillary water absorption at short times and for the highest permeability to water vapor and the greatest resistance to sulfate attack.

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Assessment of air pollutant sources in the deposit on monuments by multivariate analysis

Cited by 44 publications

References 35 publications

Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers

Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers

Geopolymer Composites for Potential Applications in Cultural Heritage

Calcium Sulfoaluminate, Geopolymeric, and Cementitious Mortars for Structural Applications

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