David Buyens (Buyens@MSN.COM)
Fri, 25 Sep 1998 14:11:42 -0400
Message-ID: <000201bde8b0$16b83120$a0f3fea9@david> Date: Fri, 25 Sep 1998 14:11:42 -0400 From: David Buyens <Buyens@MSN.COM> Subject: Re: Flowable fill, self compacting concrete, etc To: CIVIL-L@hermes.csd.unb.ca In-Reply-To: <FFB3A917466ED111B32D00805FFE7AD4014F19D7@CENTRAL05.GOV.NB.CA> Mike, We use flowable fill primarily where the need for quick construction prevents the need for compaction testing. I've got some more specific data that I can provide. However, the data is at work (I am off due to the hurricane). Our server there will be down until Monday, but feel free to email me there. Dave Buyens Chastain-Skillman, Inc. Florida Dbuyens@chastain-skillman.com -----Original Message----- Bleakney, Michael (DOT/STR) Wrote on September 25, 1998 Have any list members had experience with the material variously known as flowable fill, self compacting concrete, etc? I am considering its use as a structural fill material beneath a shallow foundation. The thickness of fill required is such that a compacted soil/aggregate fill will permit excessive settlement. The material would be seasonally submerged. The sort of things I would like to know about this material are: 1. What range of strengths can be expected? 2. What range of compressibility properties can be expected (elastic modulus, subgrade modulus, etc.)? 3. How difficult are these properties to predict and control? 4. Is the variability of these properties very high? 5. For strength and stability considerations, is it best to consider effective stress, drained, behaviour; total stress, undrained, behaviour; or ????? Or should it be considered a soil, or soil-like, at all? Any suggestions, or experiences, would be appreciated. Michael R. Bleakney Geotechnical Engineer New Brunswick Department of Transportation Structures & Materials Branch PO Box 6000 FREDERICTON, NB E3B 5H1 CANADA Tel: (506) 453-2674 Fax: (506) 457-6714 E-mail: mat005@gov.nb.ca <mailto:mat005@gov.nb.ca>