Overview
![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
Read the articleAUTHOR
-
Jean BÉNAZET: Engineer - Head of the Acoustics, Vibration, Thermal and Blasting Division at CEBTP – CEMEREX
INTRODUCTION
The quality of life and the deterioration of buildings from the 1950s have led building owners to remodel their estates by demolishing all or part of buildings constructed in diverse and often highly urbanized sites.
These demolitions are carried out mechanically or using explosives.
The difficulty of blasting decreases as the difficulty of mechanical dismantling increases.
With building heights in excess of 20 m, demolition using explosives becomes more appropriate and less dangerous than uncontrolled felling such as "dismantling with a ball, nibbling with concrete tongs or any other device often used without regard for the safety circulars in force".
However, demolition using explosives, which only presents a danger the minute the shot is fired (unlike mechanical dismantling, where the risks are continuous throughout the worksite), is no simple matter. And the contractor who carries it out needs to know :
general explosives ;
physical laws related to the dynamics of falls;
mechanical strength of materials.
In what follows, we will only cover the technical aspects of demolition using explosives. The aim is to provide contractors and project owners with a basic understanding of 20th-century demolition techniques:
to homes ;
chimneys ;
air coolers ;
water towers;
blockhouses;
industrial (including nuclear) buildings.
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Pathologies and building rehabilitation
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Blasting techniques