Maddalena, Riccardo ![]() |
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Abstract
Durability of building materials is related to the presence of cracks since they provide a fast pathway to the transport of liquid and gasses through the structure. Restoration and preservation of historical buildings has been investigated through the application of novel cementitious materials using nanoparticles such as nano-silica and silica fume. The small particle size range and the high reactivity of nanoparticles allow them to interact with calcium sources naturally present in construction materials and forming binding and strengthening compounds such as calcium silicate hydrates. Nanoparticles act as a crack-filler agent, reducing the porosity and increasing the durability of the existing material. Injection of nano-silica was carried out at a low water pressure in hydrated cement paste. This novel technique can tailor mechanical and hydraulic properties of existing building materials simply and non-destructively.
Item Type: | Conference or Workshop Item (Paper) |
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Date Type: | Published Online |
Status: | Published |
Schools: | Engineering |
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction |
Publisher: | CRC Press |
ISBN: | 9781315616995 |
Related URLs: | |
Date of First Compliant Deposit: | 22 June 2020 |
Last Modified: | 21 Dec 2022 02:05 |
URI: | https://orca.cardiff.ac.uk/id/eprint/132647 |
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