The Crushed Chest

The crushed chest.

The congestion of our roads and the higher speeds of motor vehicles have caused a progressive rise in the incidence of severe chest injuries and in consequence there is today a better appreciation of their lethal nature. The most outstanding landmark ill a decade of progress has been the establishment by Carter and Giuseffi (195 1) of the value of tracheostomy. By eliminating the dead space, fa...

Management of the crushed chest.

Thoracic injuries are very common among trauma victims. This article reviews the current literature on the management of multiple aspects of the care of the patient with severe chest injury. The mechanics of chest injury are complex and varied. Chest wall injuries are the most common and noticeable manifestation of thoracic trauma. Overall morbidity and mortality are primarily determined by ass...

Crushed chest injury and artificial ventilation.

Internal Curing with Crushed Returned Concrete Aggregates

High performance concrete (HPC) requires a low water-to-cementitious materials mass ratio (w/cm), often with the inclusion of supplemental cementitious materials such as silica fume in the mixture, thus necessitating the use of a superplasticizer. Because of the low w/cm and rapid reaction at early ages, proper curing from the earliest time possible is very essential in HPC. Internal curing has...

Free mica grains in crushed rock aggregates

Enrichment of free mica (i.e. as monomineralic grains) in the fine fraction of crushed rock aggregates affects the quality of the aggregate end product. Granitoid rock from the Svecofennian Province were used as being representative of crushed rock aggregates commonly used for construction purposes. The results reveal a general trend of enrichment of mica for finer fractions. For the coarse gra...