Porous filler from foam-zeolite and light concretes based on it for conditions of the Arctic and the North

Vitreous porous aggregates and light concretes based on them undoubtedly have a great future in construction in the harsh conditions of the North and the Arctic. This article presents the results of experimental studies of the properties of similar porous aggregates and light concretes based on them, produced for the first time during semi-production tests from zeolite-containing rocks of the Khonguruu deposit in the Republic of Sakha (Yakutia). It has been established that porous fillers made of foam rubber with a density of 150-300 kg/m³ have a rather high strength of 1.0-3.9 MPa. It is shown that with the optimal selection of the composition and fractions of granules of GFG there is a real possibility of obtaining a class of concrete B2.5 and B3.5 for low-density structural and heat-insulating concrete D500 and D600, thermal conductivity coefficients under operating conditions A are 0.14 and 0.16 W/(m×K), respectively. Such characteristics of a new type of lightweight concrete make them competitive with traditional wall materials such as wood concrete, expanded clay foam concrete, cellular concrete, etc. (paper)