公开(公告)号：US20180222795A1

公开(公告)日：2018-08-09

申请号：US15747154

申请日：2016-07-27

Applicant: Technische Universität Dresden

Inventor： Frank Neumann ,  Manfred Curbach

IPC: C04B18/02 ,  G02B19/00 ,  G02B3/08 ,  B28B11/24 ,  C04B14/06 ,  F24S20/30 ,  F24S23/30 ,  F24S30/00 ,  F24S70/16

CPC classification number: C04B18/023 ,  B28B11/243 ,  C04B14/06 ,  C04B20/04 ,  C04B28/02 ,  C04B30/00 ,  C04B2111/0025 ,  F24S20/30 ,  F24S23/30 ,  F24S23/31 ,  F24S30/00 ,  F24S50/80 ,  F24S70/16 ,  G02B3/08 ,  G02B19/0009 ,  G02B19/0042 ,  Y02E10/40 ,  C04B14/068 ,  C04B40/0268

Abstract: The invention relates to a method and an apparatus for sintering sand. An object of the invention consists in using energy-saving sintering to make it possible to use round-grain sand with evenly distributed grain fractions as a building material, and particularly as an aggregate.The object is achieved by providing a focusing device (3) for thermal energy-rich radiation (2) for generating at least one focal point (5) on the surface of a bulk sand (10) and a positioning device (6) for continuous relative movement between the focal point (5) and the sand (10).The object is further achieved by using desert sand as an aggregate for a construction element (12), characterized in that grain agglomerates (11) of desert sand (10) obtained by sintering are introduced as an aggregate into a matrix material (13).