LIGHTWEIGHT CONCRETE www.poraver.com 07/2018 Seite 1 / 2 THERMAL INSULATING LIGHTWEIGHT CONCRETE WITH PORAVER ® APPLICATION INSULATION OF FLAT ROOFS & CEILINGS In modern residential buildings with a flat roof, bound Poraver ® can be installed as a load- bearing roof insulation. For suspended ceilings, bound Poraver ® serves as a levelling layer to cover pipelines and as an insulating base layer for underfloor heating systems. The use of Poraver ® contributes to meet the requirements of modern passive houses and ecological standards in construction. Compared to other lightweight aggregates, Poraver ® expanded glass has a very positive ratio of compressive strength to bulk density. This enables single- and multi-layer structures with very good thermal insulation properties and at the same time good compressive strength. The production of load-bearing and insulating roller shutter boxes is feasible due to the excellent properties of Poraver ® lightweight concrete, as well as the thermal separation of windows, door frames and other components. WALLS & THERMAL SEPARATIONS Poraver ® expanded glass is a lightweight aggregate according to DIN EN 13055-1 and ideal for the production of lightweight concrete. The structural and thermal insulation properties of Poraver ® enable a wide range of concretes for different applications. With Poraver ® you can produce purely mineral construction materials that meet all require- ments to building physics and building biology with excellent values. Especially thermal insulation is very important. By adding Poraver ® , a suitable monolithic building material can be produced depending on the application. Time-consuming and costly external thermal insulation composite systems can become superfluous. There are many areas of application for thermal insulating lightweight concretes with Poraver ® : PRODUCTION By using different Poraver ® grain sizes, thermal insulation concretes with densities from 270 kg/m 3 to 800 kg/m 3 can be produced. Based on the available grain fractions, an optimized grading curve can be created. Depending on the requirements, thermal conductivities of ≥ 0.07 W/(m∙K) or 28d compressive strengths of up to 13 N/mm 2 can be achieved for thermal insulating lightweight concretes. In general, Poraver ® can be used to produce porous and dense lightweight concretes of all density classes. GUIDE FORMULATIONS On request, we offer various guide formulations for lightweight concretes with Poraver ® of different density classes. In addition, if you need support by our application engineering department, don’t hesitate to contact us! Thermal conductivity in W/mK Density (105 °C) in kg/m 3 270 600 400 800 Thermal conductivity of insulating concrete with Poraver ® (0.07) (0.11) (0.16) (0.21) (0.08) (0.13) (0.18) 50 40 30 20 10 0 Compressive strength (28d) in MPa Density (105 °C) in kg/m 3 600 800 1,000 1,200 1,600 1,800 2,000 1,400 Compressive strength of structural lightweight concrete with Poraver ®