method for the preparation of a lightweight aggregate concrete under construction and application of this concrete manufactured objects and structures.

摘要

1371734 Lightweight concretes WASAGCHEMIE GmbH 28 April 1972 [28 April 1971] 19768/72 Heading C1H Lightweight concrete is prepared by mixing inorganic, smooth, spherical or ellipsoidal particles having a size of 0À1-6 mm. a water retention capacity (explained of) more than 15% acid a bulk density of 0À15Œ0À1 kg./dm.3 with inorganic, porous, lightweight aggregates of particle size 4-25 mm. having crude particle densities in excess of 0À6 and bulk density 0À6Œ0À2 kg./dm.3, cement and water (the water: cement ratio being 0À65Œ0À25 : 1). Portland cement is specified. Expanded glass granules and expanded clay are the specified aggregates.