Nanotechnology and Its Impact on Construction: Bridging the Gap between Researchers and Industry Professionals

Teizer, Jochen; Venugopal, Manu; Teizer, W.; Felkl, Jakub

doi:10.1061/(asce)co.1943-7862.0000467

Cited by 79 publications

(36 citation statements)

References 5 publications

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“…et al, 2011). In the near future, it is presumed that nanotechnology applications will help the construction sector to reach the following goals (Hanus and Harris, 2013;Kaiser et al, 2013b;Lee et al, 2010a;Teizer et al, 2012;van Broekhuizen and van Broekhuizen, 2009): development of stronger concrete structures; generation of healthier environments; protection of structural appearance and durability; and reduction of energy consumption and other resource use.…”

Section: Introductionmentioning

confidence: 98%

“…In insulation materials, nano-SiO 2 (aerogel) is used as a noise barrier and for heat loss reduction (Jelle et al, 2012). Properties such as easy-clean, antibacterial, scratch resistance, fire retardant, UV-protection, wood preservation and anti-corrosion can be introduced or improved in paints and coatings using the following ENMs: Ag, CeO 2 , CNT, Fe 2 O 3 , SiO 2 , TiO 2 , ZnO (Hanus and Harris, 2013;Kaiser et al, 2013b;Lee et al, 2010a;Teizer et al, 2012;van Broekhuizen and van Broekhuizen, 2009). In windows, ENMs such as SiO 2 , TiO 2 are used for anti-reflection, anti-fogging, heat loss reduction and easy-clean properties (Lee et al, 2010b).…”

Section: Introductionmentioning

confidence: 99%

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Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

et al. 2015

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

et al. 2015

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“…3.1.Particles characterization. According to the particle size of these materials mainly within 100 nm-1.0 m, they can be classified as submicron-sized particles instead of nanoparticles which is the name often used for particles having a size less than 100 nm [27]. Thus, attending to the above results, the different properties of the synthesized submicron-sized particles will allow to check the influence of each synthesis on the mortar specimens surface, trying to stablish a relationship between the amount of methyl groups on the surface and their influence on the surface contact angle.…”

Section: Resultsmentioning

confidence: 99%

A hydrophobic release agent containing SiO2-CH3 submicron-sized particles for waterproofing mortar structures

Izarra

Cubillo

Serrano

et al. 2019

Construction and Building Materials

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Hydrophobic release agents were developed from SiO2-CH3 submicron-sized particles containing hydrophilic and hydrophobic functional groups dispersed into a vegetable oil as support. The SiO2-CH3 submicron-sized particles were synthesized by changing the molar ratio between the precursors Tetraethyl orthosilicate (TEOS) and Methyltriethoxysilane (MTES) from 0.66 to 5 (MTEOS-0.66 to MTEOS-5), being the relative amount of SiO2-CH3 quantified by FTIR technique. Mortar specimens having hydrophobic properties were manufactured using 3 wt.% of the above SiO2-CH3 submicron-sized particles. Additionally, the concentration effect was studied by using MTEOS-0.66 within 3-10wt.%. The hydrophobic properties of the mortar specimens were checked by measuring the contact angle within water droplets and surface. The particle size increased with the MTES/TEOS molar ratio and according to the hydrophobic properties, the proper release agent must be synthesized by using MTEOS-2.5 dispersed into the vegetable oil and having a concentration of 3wt.%. This hydrophobic release agent led mortar surfaces with contact angles higher than 145º. Waterproofing and mechanical studies on concrete specimens allowed to conclude that this demoulding agent do not have a high 2 penetration depth but improved the concrete waterproofing properties, without depletion in the compressive strength.

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“…• nanosilica sol and silicon compounds. Nano-SiO 2 has been applied to wood by the sol-gel method and has demonstrated great potential [89]. • nanostructured carbon materials.…”

Section: Improvement Of Fire Resistancementioning

confidence: 99%

Innovative Wood Surface Treatments Based on Nanotechnology

Papadopoulos

Taghiyari

2019

Coatings

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This work reviewed innovative wood surface treatments based on nanotechnology. It is well documented in the literature that the cell walls of wood present significant porosity; this porosity is on a molecular scale. The main reason for the use of nanotechnology in wood science and technology is the unique characteristic of nano-based materials to effectively penetrate deeply into wood substrates, which, in turns, results in the alteration of their surface chemistry. This subsequently causes an improvement in wood properties. Any potential change in the wood properties due to treatment with nanomaterials is based on the higher interfacial area which is developed due to the treatment. This occurs because the number of particles is significantly reduced to the nanoscale. The nanomaterials improve the properties of wood as a raw material and alter its original features to a limited extent. However, their potential impact on both health and the environment should be addressed by applying tools such as life-cycle assessments. This will avoid mistakes being made in which new technologies are released on the market prior to an impact assessment having been carried out.

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Nanotechnology and Its Impact on Construction: Bridging the Gap between Researchers and Industry Professionals

Cited by 79 publications

References 5 publications

Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

Use of engineered nanomaterials in the construction industry with specific emphasis on paints and their flows in construction and demolition waste in Switzerland

A hydrophobic release agent containing SiO2-CH3 submicron-sized particles for waterproofing mortar structures

Innovative Wood Surface Treatments Based on Nanotechnology

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