Global Patent Index - EP 1534645 A1

EP 1534645 A1 20050601 - LIGHTWEIGHT CONCRETE

Title (en)

LIGHTWEIGHT CONCRETE

Title (de)

LEICHTBETON

Title (fr)

BETON LEGER

Publication

EP 1534645 A1 20050601 (EN)

Application

EP 03733642 A 20030521

Priority

  • NO 0300163 W 20030521
  • NO 20022388 A 20020521

Abstract (en)

[origin: WO03097553A1] Lightweight concrete based on Portland cement wherein the aggregate is solely or partially comprised of crushed expanded glass (foam-glass), said concrete exhibiting a weight increase of maximum 5% in 2 years tested according to Canadian Standard CSA A 23.2-14A. The lightweight concrete includes crushed foam-glass in an amount of at least 20% by weight of the fresh lightweight concrete and a pozzuolanic material that is included in an amount of at least 8% by weight of the cement in the lightweight concrete. The cement component(s) of the light weight concrete are chosen among CEM I low alkaline cement (max. 0.6% by weight Na2O), CEM II fly ash cement with an alkaline (Na2O) content less than 8% by weight of the fly ash content, as well as mixtures of such cements.

IPC 1-7

C04B 14/22; C04B 7/06; C04B 28/02

IPC 8 full level

C04B 28/04 (2006.01)

CPC (source: EP)

C04B 28/04 (2013.01); C04B 2111/40 (2013.01); Y02W 30/91 (2015.05)

Citation (search report)

See references of WO 03097553A1

Designated contracting state (EPC)

DE DK GB SE

DOCDB simple family (publication)

WO 03097553 A1 20031127; AU 2003238729 A1 20031202; EP 1534645 A1 20050601; NO 20022388 D0 20020521; NO 20022388 L 20031124; NO 318389 B1 20050314

DOCDB simple family (application)

NO 0300163 W 20030521; AU 2003238729 A 20030521; EP 03733642 A 20030521; NO 20022388 A 20020521