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Re: cmu footings

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Gentlemen

A base in reinforced concrete together with a neck (web) in CMU/brick has always been used for wall foundations. But given the condition of expansive soil, such a system may not structurally be a viable proposition.

For expansive soil ( depending upon the degree of swelling pressure, which in turn depends on Plasticity Index of the soil perse ), I would recommend you to use the design manual of BRAB (Building Research Advisory Board)which is a subsidiary of National Housing Authority, USA. I have used this extensively with promising results.

If you donot happen to know about this publication, I would be pleased to extend help. Regards,

SYED FAIZ AHMAD; MENGG, MASCE
SENIOR STRUCTURAL ENGINEER
SAUDI OGER LTD
RIYADH, SAUDI ARABIA.


From: PFFEI(--nospam--at)aol.com
Reply-To: seaint(--nospam--at)seaint.org
To: seaint(--nospam--at)seaint.org
Subject: cmu footings
Date: Fri, 7 Sep 2001 00:04:14 EDT

does anyone have experience using reinfroced cmu for building foundations?
the project is a single story wood framed residence, but site soil is
expansive.  are lintel blocks typically used to create wall footings?

thanks in advance

paul franceschi, s.e.

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