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1. (WO2018042180) CORE INSERT AND METHOD OF MANUFACTURING A HOLLOW CORE CONCRETE SLAB

Pub. No.:    WO/2018/042180    International Application No.:    PCT/GB2017/052537
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat Sep 02 01:59:59 CEST 2017
IPC: B28B 7/32
B29C 33/50
Applicants: HOLLOW CORE INTERNATIONAL LTD
Inventors: DURHAM, John
BRIGGS, Warren
Title: CORE INSERT AND METHOD OF MANUFACTURING A HOLLOW CORE CONCRETE SLAB
Abstract:
A core insert (100) for the manufacture of hollow core concrete slabs has a hollow core insert body (202) constructed from a flexible material and having a body end, a plug member (208) increasing in cross section from a minor end to a major end and defining an exterior surface and, a collar (210) increasing in cross section from a minor end to a major end and defining an interior surface, in which the plug member (208) and the collar are tapered and clamp the hollow core insert body (202) under pressure. The plug (208) allows hollow core insert body (202) to be extracted without hindrance through the cast hollow core concrete slab.