Analysis on the efficiency of stone consolidation actions

Franziska Braun

doi:10.15199/33.2016.11.07

Stone consolidation with SiO2 nanoparticles: Effects on a high porosity limestone

Construction and Building Materials ◽

10.1016/j.conbuildmat.2019.05.169 ◽

2019 ◽

Vol 219 ◽

pp. 154-163 ◽

Cited By ~ 2

Author(s):

Emilia Vasanelli ◽

Angela Calia ◽

Maurizio Masieri ◽

Giovanni Baldi

Keyword(s):

Sio2 Nanoparticles ◽

High Porosity ◽

Stone Consolidation

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Effectiveness and Compatibility of a Novel Sustainable Method for Stone Consolidation Based on Di-Ammonium Phosphate and Calcium-Based Nanomaterials

Materials ◽

10.3390/ma12183025 ◽

2019 ◽

Vol 12 (18) ◽

pp. 3025 ◽

Cited By ~ 2

Author(s):

Cecilia Pesce ◽

Ligia M. Moretto ◽

Emilio F. Orsega ◽

Giovanni L. Pesce ◽

Marco Corradi ◽

...

Keyword(s):

Ammonium Phosphate ◽

Pulse Velocity ◽

X Ray ◽

Artistic Value ◽

Physical Chemical ◽

Stone Consolidation ◽

Colour Measurements ◽

Combined Use ◽

Water Absorption Test ◽

Ultrasound Pulse

External surfaces of stones used in historic buildings often carry high artistic value and need to be preserved from the damages of time, especially from the detrimental effects of the weathering. This study aimed to test the effectiveness and compatibility of some new environmentally-friendly materials for stone consolidation, as the use thereof has been so far poorly investigated. The treatments were based on combinations of an aqueous solution of di-ammonium phosphate (DAP) and two calcium-based nanomaterials, namely a commercial nanosuspension of Ca(OH)2 and a novel nanosuspension of calcite. The treatments were applied to samples of two porous stones: a limestone and a sandstone. The effectiveness of the treatments was assessed using scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, ultrasound pulse velocity test, colour measurements, and capillary water absorption test. The results suggest that the combined use of DAP and Ca-based nanosuspensions can be advantageous over other commonly used consolidants in terms of retreatability and physical-chemical compatibility with the stone. Some limitations are also highlighted, such as the uneven distribution and low penetration of the consolidants.

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Silica nanoparticles (SiO 2 ): Influence of relative humidity in stone consolidation

Journal of Cultural Heritage ◽

10.1016/j.culher.2015.06.002 ◽

2016 ◽

Vol 18 ◽

pp. 258-270 ◽

Cited By ~ 26

Author(s):

Ainara Zornoza-Indart ◽

Paula Lopez-Arce

Keyword(s):

Relative Humidity ◽

Silica Nanoparticles ◽

Stone Consolidation

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TEOS-colloidal silica-PDMS-OH hybrid formulation used for stone consolidation

Applied Organometallic Chemistry ◽

10.1002/aoc.1646 ◽

2010 ◽

pp. n/a-n/a ◽

Cited By ~ 4

Author(s):

Carmen Salazar-Hernández ◽

María Jesús Puy Alquiza ◽

Patricia Salgado ◽

Jorge Cervantes

Keyword(s):

Colloidal Silica ◽

Stone Consolidation ◽

Hybrid Formulation

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The Use of Epoxy Resins for Stone Consolidation

MRS Proceedings ◽

10.1557/proc-185-181 ◽

1990 ◽

Vol 185 ◽

Author(s):

Charles M. Selwitz

Keyword(s):

Water Vapor ◽

Mechanical Strength ◽

Epoxy Resins ◽

Deep Penetration ◽

Stone Consolidation ◽

Epoxy Curing ◽

Water Vapor Transmission ◽

Stone Deterioration ◽

Methods Of Treatment

AbstractAn overview on the causes and methods of treatment of stone deterioration is presented. The reasons for and prejudices against epoxy resins for stone consolidaton are described in terms of achieving deep penetration, improvement in mechanical strength and good water repellancy without the inhibition of water vapor transmission. Early work which failed to understand the nature of epoxy curing in solution is outlined, and more recent research, where this problem has been solved, is discussed.

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