Bioweathering of minerals and dissolution assessment by experimental simulations—Implications for sandstone rocks: A review

Potysz, Anna; Bartz, Wojciech

doi:10.1016/j.conbuildmat.2021.125862

Cited by 26 publications

(16 citation statements)

References 214 publications

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“…The B-H was formed in situ inside the pores of sandstones; there is excellent compatibility with the sandstone, resulting in strengthening. Strong hydrogen bonding, coordination, ionic bonding, and favorable mechanical fitting between the hydrogel and the sandstone are factors that made the sandstone more robust: (1) strong hydrogen bonds: The hydrogel contains many amino groups, which could form extremely strong hydrogen bonds with sandstone (Si–OH). , (2) The Si 4+ and interlayer Al 3+ in the Si–O of the bentonite itself were easily replaced by low-valent ions such as Mg 2+ , Fe 2+ , and Li + , causing the bentonite layer to have a net negative charge; it then could interact with metal cations in the sandstone rock matrix to generate ionic bonds. , (3) Sandstone contains metal ions that can form coordination bonds with amino groups in the hydrogel. , (4) The excellent mechanical fit between the hydrogel and the pores of sandstones is a further strengthening factor.…”

Section: Resultsmentioning

confidence: 99%

“…Major ancient sandstone artifacts are generally outdoors and subject to environmental factors. , In particular, acid rain can be lethal. , We evaluated the acid resistance of B-H–sandstone (Figure a). Compared with the complete degradation unprotected sandstone can undergo, the acid resistance of B-H–sandstone was greatly improved (88.83% residual mass).…”

Section: Resultsmentioning

confidence: 99%

“…34,38 (3) Sandstone contains metal ions that can form coordination bonds with amino groups in the hydrogel. 4,17 (4) The excellent mechanical fit between the hydrogel and the pores of sandstones is a further strengthening factor.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Sandstone-based cultural relics are an important component of historical and cultural heritage. They are widely distributed around the worldin ancient buildings, architectural decoration, carved statues, and historical monuments. − Unfortunately, long-term environmental factors (temperature, humidity, ultraviolet light, acid rain, wind erosion, corrosion due to salt crystals) lead to unstoppable deterioration. − To conserve these relics, we must protect or delay the erosion and destruction due to these factors. ,,, …”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Insight into a Bentonite-Based Hydrogel for the Conservation of Sandstone-Based Cultural Heritage: In Situ Formation, Reinforcement Mechanism, and High-Durability Evaluation

Shi

Zhao

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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Conservation of sandstone-based cultural heritage has attracted a great deal of interest. We propose herein a novel protecting strategy, via in situ fabrication of bentonite-based hydrogels (B-H) inside sandstones, where the bentonite-based hydrogels serve as the underlying cement. To create bentonite-based hydrogels with controllable structure, possessing good mechanical and anti-swelling properties, we have optimized forming time, appearance, and viscosity. The hydrogel precursor penetrated into the pores of the sandstone; the hydrogel would then form within 3−5 h. As found by employing a fluorescent tracer, the precursor remained controllably in place without any apparent change in the sandstone morphology. The bentonite-based hydrogels that formed inside the sandstones presented strong hydrogen bonding, coordination, and ionic bonding, as well as strong mechanical interlocking to the sandstone matrix. As a result, the sandstones possessed enhanced mechanical compressive strength and excellent resistance to acid, salt, and freeze−thaw cycles. Our approach provides for a non-destructive, eco-friendly, easy-to-use, and long-term strategy for cultural preservation, one with excellent protection effects.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Insight into a Bentonite-Based Hydrogel for the Conservation of Sandstone-Based Cultural Heritage: In Situ Formation, Reinforcement Mechanism, and High-Durability Evaluation

Shi

Zhao

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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“…Moreover, the presence of acidic solutions in rocks creates a corrosive effect, and the H + ions in the solution react with feldspar, mica, and calcite in the sandstone. These acid–rock reactions promote the creation of secondary pores and material dissolution, and, therefore, a prominent reduction in host rock strength is observed . Therefore, it is evident that the understanding of chemical diagenesis is of great importance in predicting reservoir behavior and hydrocarbon accumulation as it clearly affects the subsurface distribution of the porosity, permeability, and, thus, economic value of a specific sandstone reservoir …”

Section: Introductionmentioning

confidence: 99%

Effect of Inorganic Acid Concentration on Sandstone Surface Chemistry Examined via Nuclear Magnetic Resonance

et al. 2022

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Despite rock surface charge being a critical component in predicting the reservoir behavior, the subsurface characteristics are still poorly understood, specially, those of sandstones, which are of key economic importance in the oil and gas industry. Even though a rock surface is originally considered to be neutrally charged, surface charges are created in the presence of water and dissolved ions. Moreover, a major proportion of sandstone reservoirs are composed of silica which creates surface charges through dissociation of silanols in the presence of water and/or acids. Rock subsurface chemistry is a primary factor that determines the variability of several key reservoir parameters (e.g., capillary pressures or residual saturations). Nuclear magnetic resonance (NMR) is a well-established tool with which such rock surface chemistry can be measured in situ. For example, surface charge is a vital characteristic with which single-phase and multiphase fluid flow behavior can be predicted (e.g., it determines colloidal stabilities or streaming potentials); the surface charge/surface potential is thus highly significant for a wide range of applications and processes, for example, enhanced oil/gas recovery, hydrogen/CO 2 geo-storage, or contaminant transport. This study provides novel insights into fundamental rock surface chemistry and how this is influenced by the acidity of the aqueous phase in the subsurface. Specifically, we systematically examined sandstone surface chemistry as a function of mineral acid concentration via NMR T 2 response measurements. For this, Bentheimer sandstone samples were treated with aqueous hydrochloric acid solutions of different concentrations, and NMR T 2 distribution measurements were performed for the initial and treated samples. The results indicated that higher concentrations of hydrochloric acid (and thus more surface protonation) yielded much shorter T 2 relaxation times compared to lower concentrations. This work thus provides fundamental information about in situ sandstone surface chemistry and therefore aids in the basic understanding and implementation of key geologic questions and engineering projects.

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Microbial Weathering of Rocks in Natural Habitat

Podia,

Yadav,

Hooda

et al. 2023

Weathering and Erosion Processes in the Natural Environment

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Bioweathering of minerals and dissolution assessment by experimental simulations—Implications for sandstone rocks: A review

Cited by 26 publications

References 214 publications

Insight into a Bentonite-Based Hydrogel for the Conservation of Sandstone-Based Cultural Heritage: In Situ Formation, Reinforcement Mechanism, and High-Durability Evaluation

Insight into a Bentonite-Based Hydrogel for the Conservation of Sandstone-Based Cultural Heritage: In Situ Formation, Reinforcement Mechanism, and High-Durability Evaluation

Effect of Inorganic Acid Concentration on Sandstone Surface Chemistry Examined via Nuclear Magnetic Resonance

Microbial Weathering of Rocks in Natural Habitat

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