Cur-ris concrait aotrom | Luchd-ionaid foam àrd-choileanadh airson concrait cealla
Tha mòran bhuannachdan ann a bhith a’ cleachdadh cruadhtan aotrom ann an togail thogalaichean agus structaran eile. Nam measg tha lùghdachadh ann an cosgais iomlan a’ phròiseict, reduced risk of foundation failure and floor collapse, and greater durability and flexibility.
Among the most notable examples of lightweight concrete in the modern world is Renzo Piano’s renowned 95-floor The Shard in New York City, which was built in just four years. In addition to being a spectacular structural feat, the building also showcases the benefits of lightweight concrete as an extremely cost-effective building material.
Lightweight Aggregate Concrete (LWC) is a concrete mix designed with specific lightweight aggregates, which make it lighter than normal concrete. This enables the construction of lightweight wall sections for precast and modular buildings, drochaidean, decks, and girders.
The weight of LWC is a little lower than standard concrete, mu dheidhinn 90-115 notaichean gach cas ciùbach. This means that the amount of steel reinforcement and framing materials necessary to support the structure will be significantly less than normal concrete, which ultimately reduces the overall project cost.
Infra-Lightweight Concrete (ILC) is another form of concrete with a low density, and has gained popularity in the building industry. It provides a fair faced surface, which enables monolithic external walls without additional insulation.
The main difference between lightweight and regular concrete is that the latter has a higher water content, meaning that it needs more reinforcement to support the structure. Anns an fharsaingeachd, this requires the use of additional rebar and steel plates. The rebar and steel plates will not be visible in the final building.