Bad design, faulty construction, foundation failure
, extraordinary loads, unexpected failure modes like natural disaster such as heavy rains, wind, including man-made ones are factors that have been attributed to be causes of building collapse.'
The Connecticut Department of Consumer Protection is among agencies probing widespread residential foundation failure
. It enlisted University of Connecticut Associate Professor Kay Wille, who after an eight-month investigation of foundation concrete and Becker's Quarry samples, offered a theory on pyrrhotite in a portland cement-bound matrix: The compound oxidizes when exposed to water plus oxygen or ferric ions, spurring formation of an expansive mineral product such as ferihydrite plus release of sulfates.
Tenders are invited for The purpose of the project is to investigate and verify the cause of foundation failure
at Adobe #2, develop a plan to repair the foundation, and provide a cost estimate associated with the proposed work.
, however, may also be the culprit.
According to the literature , foundation failure
on the Coal Line were observed during 1994~1995 on the Vryheid-Richard Bay section, approximately 20 years after its initial construction.
is a significant (and costly) problem in its own right.
It could be a bad design, or a faulty construction, or foundation failure
, or unexpected loads/ failure modes and a combination of causes.
Construction over extremely expansive soils raises the risk of structural foundation failure
and potential failure to the building itself (Service Load Design Method: Allowable Stress Design (AASHTO Division 1 Design: 2002)).
To prevent thawing of the permafrost and subsequent foundation failure
, the building is completely isolated from the soil by an open air space of four feet or more.
Common causes of failure include excessive vacuum, excessive internal pressure, foundation failure
, brittle fracture, corrosion, change of service, and defects introduced by repairs and alterations.
LePatner, founder of the New York-based law firm LePatner & Associates LLP, is the author of Too Big to Fall: America's Failing Infrastructure and the Way Forward and Broken Buildings, Busted Budgets: How to Fix America's Trillion-Dollar Construction Industry, as well as the coauthor of Structural and Foundation Failures
LePatner--co-author of Structural & Foundation Failures
(McGraw Hill, 1982) and author of Broken Buildings, Busted Budgets: How to Fix America's Trillion-Dollar Construction Industry (University of Chicago Press; www.brokenbuildings.com)--says it is time to implement practical, real-life measures that will stem the chronic waste and delays characterizing America's $1.23 trillion construction industry.