公开(公告)号：US20030056695A1

公开(公告)日：2003-03-27

申请号：US10113441

申请日：2002-03-29

Applicant: W.R. GRACE & CO.-CONN.

Inventor： Michael B. Macklin ,  Anandakumar Ranganathan ,  Klaus-Alexander Rieder ,  Ding Feng Shen ,  Michael Buchanan ,  Randall Fierke ,  Jessica Verrill ,  Donald Indge ,  David Agresti ,  Paul Westgate

IPC: C04B014/38

CPC classification number: C04B28/02 ,  B28C5/404 ,  C04B20/0048 ,  C04B28/06 ,  C04B40/0039 ,  C04B2103/0057 ,  C04B2111/21 ,  E04C5/073 ,  Y02W30/92 ,  Y02W30/94 ,  C04B16/06 ,  C04B18/02 ,  C04B20/1018 ,  C04B24/38 ,  C04B16/0616 ,  C04B14/386 ,  C04B2103/44 ,  C04B14/42 ,  C04B24/02 ,  C04B24/32 ,  C04B22/002 ,  C04B24/383 ,  C04B2103/00 ,  C04B16/0625 ,  C04B16/0633 ,  C04B14/06 ,  C04B14/062 ,  C04B14/08 ,  C04B14/18 ,  C04B20/008 ,  C04B24/22 ,  C04B24/2641 ,  C04B40/0263 ,  C04B41/4884 ,  C04B14/202 ,  C04B18/08 ,  C04B18/146 ,  C04B24/2676

Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous or non-aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.